® 5020A Thermo-Hygrometer Users Manual December 2003 © 2003 Fluke Corporation, All rights reserved. All product names are trademarks of their respective companies.
LIMITED WARRANTY AND LIMITATION OF LIABILITY Each Fluke product is warranted to be free from defects in material and workmanship under normal use and service. The warranty period is one year and begins on the date of shipment. Parts, product repairs, and services are warranted for 90 days.
Table of Contents Chapter 1 Title Introduction and Specifications ........................................................ 1-1 Introduction........................................................................................................ Symbols Used .................................................................................................... Safety Information ............................................................................................. Technical Support ....................
5020A Users Manual 4 General Operation .............................................................................. 4-1 Introduction........................................................................................................ DC Power Source............................................................................................... Battery................................................................................................................ Sensor Configuration ...................
Contents (continued) IR............................................................................................................... 5-32 Password........................................................................................................ 5-32 System Info.................................................................................................... 5-34 6 Digital Communications Interface..................................................... 6-1 Introduction...............................
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List of Tables Table 5-1. 5-2. 6-1. 7-1. 7-2. 7-3. 7-4. 8-1. Title Field Types............................................................................................................. Aproximate Data Storage Capacity........................................................................ Interface Commands .............................................................................................. 5026A-S Temperature Calibration Points ..............................................................
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List of Figures Figure 3-1. 3-2. 3-3. 3-4. 5-1. 5-2. 5-3. 5-4. 5-5. 5-6. 5-7. 5-8. 5-9. 5-10. 5-11. 5-12. 5-13. 5-14. 5-15. 5-16. 5-17. 5-18. 5-19. 5-20. 5-21. 5-22. 5-23. 5-24. 5-25. 5-26. 5-27. 5-28. 5-29. 5-30. 5-31. Title Front Panel ............................................................................................................. Top Panel ............................................................................................................... Right and Left Side View................
5020A Users Manual 5-32. 5-33. 5-34. 5-35. 5-36. 5-37. 5-38. 5-39. 5-40. 5-41. 5-42. 5-43. 5-44. 5-45. 6-1. File View................................................................................................................ Alarm...................................................................................................................... Alarm Setting ......................................................................................................... Sensor Alarm........................
Chapter 1 Introduction and Specifications Title Introduction........................................................................................................ Symbols Used .................................................................................................... Safety Information ............................................................................................. Technical Support ..............................................................................................
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Introduction and Specifications Introduction 1 Introduction This manual contains information necessary safely operate the Fluke 5020A ThermoHygrometer. The Fluke 5020A is a low-cost, high-accuracy, digital thermo-hygrometer. Its unique combination of features makes it suitable for a wide variety of applications from laboratory to industrial ambient measurement. Features of the thermo-hygrometer include: • Two channels measure ambient temperature to ±0.125 °C and %RH to ±1.
5020A Users Manual Symbols Used Table 1-1 lists the International Electrical Symbols. Some or all of these symbols may be used on the instrument or in this manual. Table 1-1.
Introduction and Specifications Safety Information • The AC adapter can present safety concerns if misused or damaged. To avoid the risk of electric shock or fire, do not use the AC adapter outdoors or in a dusty, dirty, or wet environment. If the cord, case, or plug of the adapter is damaged in any way, discontinue its use immediately and have it replaced. • Never disassemble the AC adapter.
5020A Users Manual • Sensors are fragile devices which can be damaged by mechanical shock, overheating, and exposure to fluids. Damage may not be visibly apparent but can cause drift, instability, and loss of accuracy. Observe the following precautions: • DO NOT allow sensors to be dropped, struck, or stressed. • DO NOT overheat sensors beyond their recommended temperature range. • Keep the sensors clean and away from fluids and dust. Technical Support Contact Fluke if you need technical support.
Introduction and Specifications Specifications 1 Specifications Temperature Range 0 °C to 50 °C Temperature Accuracy 16 °C to 24 °C: ±0.125 °C (calibrated) (“H” Model) 0 °C to 16 °C, 24 °C to 50 °C: ±0.5 °C (uncalibrated typical) Temperature Accuracy 15 °C to 35 °C: ±0.25 °C (calibrated) (“S” Model) 0 °C to 15 °C, 35 °C to 50 °C: ±0.5 °C (uncalibrated typical) Delta Temperature Accuracy ±0.025 °C for ±1 °C changes within 15 °C to 35 °C Temperature Display Resolution User selectable up to 0.
5020A Users Manual Size (5020A) 125 mm Hx 211 mm W x 51 mm D(4.9 in x 8.3 in x 2.0 in) Size (Probes) 79 mm H x 19 mm dia. (3.1 in H x 0.75 in) Weight 0.7 kg (1.5 lb.) Calibration Certificate of NIST-traceable temperature and humidity calibration included; supplied data includes three each temperature and humidity points Environmental Conditions Although the instrument has been designed for optimum durability and trouble-free operation, it must be handled with care.
Chapter 2 Quick Start Title Introduction........................................................................................................ Unpacking.......................................................................................................... Use Proper Care ................................................................................................. Learn About the Features and Components....................................................... Install the Battery.....................
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Quick Start Introduction 2 Introduction This section briefly explains the basics of setting up and operating your thermohygrometer. Unpacking Carefully unpack the thermo-hygrometer and inspect the instrument to make sure all components are present and in satisfactory condition.
5020A Users Manual Connect the Power Source The thermo-hygrometer draws power from the provided power adapter. Plug the adapter into a wall outlet of the appropriate voltage and insert the DC plug into the DC power input of the thermo-hygrometer. Switch the Power On Power is turned on and off with the power switch located below the stand on the back panel. To switch the power on, toggle the power switch to the position. To switch power off, toggle the power switch to the position.
Chapter 3 Parts and Controls Title Introduction........................................................................................................ Front Panel......................................................................................................... Top Panel ........................................................................................................... Right Side Panel.................................................................................................
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Parts and Controls Introduction 3 Introduction The functions of the various features of the thermo-hygrometer are described below. Front Panel The front panel buttons E, A, D, B, C and F are used to select and alter the functions of the thermo-hygrometer (see Figure 3-1). avu052.tif Figure 3-1. Front Panel The buttons have different functions depending on whether the main screen or the menu system is displayed.
5020A Users Manual B C - These buttons are used to change a value or option when editing a parameter. When editing some numeric or alpha-numeric parameters, these buttons are used to move among digits or characters. IR Port - The infrared window provides a means for communicating with the thermohygrometer using infrared serial communications (IR COMM mode) or printing measurements and daily statistics to a IrDA-compatible printer (IRDA mode).
Parts and Controls Left Side Panel 3 avu054.tif Figure 3-3. Right and Left Side View Left Side Panel The left side panel consists of the DC power socket, the RS-232 port and the data card slot. 12 V DC Power Socket - The DC plug of the AC adapter plugs into the 12V DC power socket to power the instrument. RS-232 Port Connector - This socket is for interfacing the thermo-hygrometer to a computer or terminal using serial RS-232 communications.
5020A Users Manual Battery Compartment - The battery compartment holds a 9V alkaline battery used as a backup power source to maintain continuous measurement during a power outage. Power Switch - The power switch turns the power on and off to the thermohygrometer, including power from the battery. Before disconnecting the AC adapter from the instrument, switch the power off to prevent draining the backup battery. Serial Label - The serial label shows the instrument model and serial number. Figure 3-4.
Parts and Controls Accessories • Model 5026A-S Spare Sensor/Standard Accuracy • Model 5027A-S Spare Sensor Kit includes a standard accuracy probe (Model 5026AS), sensor case (Model 5026A-CASE), sensor wall mount bracket (Model 5030AMNT), and 25-foot (7.
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Chapter 4 General Operation Title Introduction........................................................................................................ DC Power Source............................................................................................... Battery................................................................................................................ Sensor Configuration ......................................................................................... Power Switch ....
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General Operation Introduction 4 Introduction This section explains basic operation of the thermo-hygrometer. Detailed operation of the thermo-hygrometer is explained in Chapters 5 and 6. Chapter 5 explains the menu structure and the functions available in the menu structure and Chapter 6 explains the communications interface for operating the thermo-hygrometer remotely. DC Power Source The thermo-hygrometer requires 12V DC to operate.
5020A Users Manual Used batteries must be disposed of properly. See Warnings at the beginning of this manual. Sensor Configuration The thermo-hygrometer can be used with one or two sensors of either type attached at either of the two ports. Extension cables can be used with the sensors to allow the sensors to be placed at remote locations. The extension cables can be up to 30m (100 ft.) in length.
General Operation Unit of Temperature 4 Unit of Temperature The thermo-hygrometer is capable of displaying temperature in Celsius (C) or Fahrenheit (F). The unit of temperature applies to temperature measurements on either channel that are displayed, recorded, or printed. Recorded data is viewed, printed, or written to a data card file with the currently set unit of temperature.
5020A Users Manual objects cannot be eliminated, consider using a heat shield between the heat source and the thermo-hygrometer sensor. The sensor can also be heated by warm objects close by, perhaps a wall that is slightly warmer than the air in the room or even another sensor placed next to it. For best results, allow adequate distance between the sensor and any objects that might be at a different temperature than the air. Other considerations relate to the self-heating of the sensor.
Chapter 5 Menu Functions Title Introduction........................................................................................................ Channel Menu.................................................................................................... Channel Setting ............................................................................................. Sensor ID ....................................................................................................... Sensor Lock..............
5020A Users Manual Comm Setting................................................................................................ Serial ......................................................................................................... IR............................................................................................................... Password........................................................................................................ System Info................................
Menu Functions Introduction 5 Introduction Select the E button from the front panel to access the main menu of the thermohygrometer. The main menu consists of the submenus: CHANNEL, DISPLAY, DATA, ALARM, and SYSTEM. Most of the menu options may be password-protected to prevent them from being changed. avu001.jpg Figure 5-1. Main Display Each submenu has its own set of functions. The E button is used to select and execute menu choices. The A D buttons are used to scroll through the functions.
5020A Users Manual Figure 5-3. Channel Menu avu004.jpg Channel Setting The CHANNEL SETTING function allows you to turn the channels on or off, set the measurement period, turn averaging on or off, and set the time over which the rate of change is calculated for measurements. These settings may be password-protected to prevent them from being changed. The channels are turned on or off by selecting the channel and then the ON or OFF setting using the B C buttons.
Menu Functions Channel Menu Figure 5-4. Channel Setting 5 avu005.jpg Use the A D buttons to select the setting to change. The B C buttons are used to change the setting parameters. Press the E button to save the new setting. Press the F button to cancel any changes and exit to the menu. Sensor ID The SENSOR ID function allows each sensor to be uniquely identified. This may be password-protected to prevent it from being changed. The model number and serial number are displayed here but cannot be edited.
5020A Users Manual Sensor Lock The SENSOR LOCK function locks each sensor individually and prohibits the user from switching sensors on the locked channels. This may be password-protected. The sensor lock is set to ON or OFF. After selecting ON, a screen is displayed showing the sensor channel number, serial number, and the message ‘NOW LOCKED’. When the sensor lock is ON, the thermo-hygrometer measures only on that channel using the sensor that was attached when sensor lock was set ON.
Menu Functions Display Menu Figure 5-7. Sensor Channel Select 5 avu009.jpg The B C buttons are used to edit the parameter value. The A D buttons are used to move between parameters. Press the E button after all of the parameters have been edited. The message ‘STORE VALUES’ is displayed. Press the E button to save the new settings. The values are stored in the sensor. Press the F button to cancel any changes and exit to the menu. avu008.jpg Figure 5-8.
5020A Users Manual Figure 5-9. Display Menu avu010.jpg Display Setting The DISPLAY SETTING function allows you to select the temperature display resolution (T RES), humidity display resolution (H RES), decimal preference, unit of temperature and display contrast. These settings may be password-protected. The temperature and humidity display resolutions are selectable between 0, 0.1, 0.01, and 0.001. These settings do not afect the resolution of recorded or printed data.
Menu Functions Display Menu 5 Display Layout The DISPLAY LAYOUT function allows you configure any of the 16 different display layouts. These settings may be password-protected. A display layout can be enabled or disabled by choosing ON or OFF. ON allows the display to be selected from the main screen using the B C buttons. The number of zones is selectable from 1 to 4.
5020A Users Manual Table 5-1.
Menu Functions Display Menu Figure 5-12. Field Data 5 avu013.jpg Use the B C buttons to change each of the settings. Press E to save and continue to the next parameter. Press the F button to cancel any changes and exit to the menu. Graph Scale The GRAPH SCALE function allows the selection of the graph settings for each zone (1, 2, 3, or 4). Graph settings for each zone are used in common among all display layouts. This may be password-protected.
5020A Users Manual Figure 5-13. Graph Scale, Select Zone avu014.jpg avu015.jpg Figure 5-14. Graph Scale Use the E button to edit and save the new setting. Press F button to cancel any changes and exit to the menu. On the last parameter, press the E button to exit to the menu. Display Reset The DISPLAY RESET function allows all display layouts, field data settings and graph scale settings to be reset to original settings. This may be password-protected. Use the E button to reset the display settings.
Menu Functions Data Menu Figure 5-15. Display Reset 5 avu016.jpg Data Menu The DATA menu contains functions for recording measurement data and statistics as well as transferring data to the data card. The functions that appear in this menu are DATA RECORD, DAILY STATS, and DATA CARD. avu017.jpg Figure 5-16. Data Menu Use the A D buttons to select the menu. Press the E button to select the menu. Press the F button to cancel any changes and exit to the menu.
20A Users Manual Caution When data recording memory fills up, the earliest block of data is automatically discarded so recording of the most recent data can continue. Data Record The DATA RECORD function allows the setting of the data recording features. The functions that appear in this menu are RECORD SETTING, DATA VIEW, DATA PRINT, DATA STORAGE, and DATA CLEAR. Figure 5-17. Data Record avu018.jpg Use the A D buttons to select the menu. Press the E button to select the menu.
Menu Functions Data Menu 5 Caution When the memory has been filled, the oldest block of data will be discarded to allow new data to be recorded. Measurement storage capacity can range between 28 hours and 2 years depending on the record period and enabled channels. Refer to Table 5-2, Approximate Data Storage Capacity. Table 5-2.
5020A Users Manual Figure 5-19. Data View, Begin Time avu020.jpg avu021.jpg Figure 5-20. Data View, Numeric Format The numeric mode displays the data in a numeric format. The BEGIN parameter specifies the starting date and time of the data to display. Use the B C buttons to adjust the start date and time. The format of the start date is according to D FORM in the SYSTEM, DATE-TIME menu function. The format of the start time is 24 hour format.
Menu Functions Data Menu 5 Press the E button to display the data for the selected starting date and time in graphical format. Press the F button to cancel any changes and exit to the menu. Data Print The DATA PRINT function allows recorded data to be printed over the serial or IR port. The PORT parameter is selectable between SERIAL and IRDA/IRCOMM, depending on the IRMODE setting. The FORMAT parameter may be set to BINARY or TEXT for the serial port or IRCOMM port.
5020A Users Manual Figure 5-22. Data Storage avu023.jpg Press the E or F button to exit. Data Clear The DATA CLEAR function clears the data collected. This function may be password protected. Figure 5-23. Data Clear avu024.jpg Press the E button to clear the data. Press the F button to cancel any changes and exit to the menu. Caution Using this function will erase all recorded data and make it irretrievable.
Menu Functions Data Menu 5 any hour of the day and automatically reset the statistics on any hour. Measurement statistics are kept as measurements are made. The current statistics can be displayed in any STATS type zone. The statistics can also be stored automatically at the end of the day and reset automatically at the beginning of the next day. The DAILY STATS menu options are STATS SETTING, STATS VIEW, STATS PRINT, STATS RESET, and STATS CLEAR. The DAILY STATS can be password-protected. Figure 5-24.
5020A Users Manual Figure 5-25. Stats Setting avu026.jpg The B C buttons are used to change the setting parameters. Press the E button to save the new setting. Press the F button to cancel any changes and to exit to the menu. Stats View The STATS VIEW function is used to view daily statistics. Select a date and measurement channel and type. The average, standard deviation, minimum, maximum, spread, number, maximum rate, and alarm are displayed for the channel and measurement type. Figure 5-26.
Menu Functions Data Menu Figure 5-27. Stats Print 5 avu028.jpg Press the E button to save the new setting. Press the F button to cancel any changes and exit to the menu. Stats Reset The STATS RESET function resets current statistics. Statistics will then be based on measurements made from this time forward. After pressing the E button, a WARNING message will appear requesting a confirmation of the operation. If the E button is pressed the stats are reset.
5020A Users Manual Figure 5-29. Stats Clear avu030.jpg Data Card The DATA CARD function allows data to be written to a file on a data card or data in a binary (.rec) file to be viewed. The DATA CARD options are FILE WRITE and FILE VIEW. Figure 5-30. Data Card avu031.jpg The A D and E buttons are used to select the menu function. File Write The FILE WRITE function allows the user to write data to a data card. The FORMAT parameter is selectable between TEXT and BINARY.
Menu Functions Data Menu Figure 5-31. File Write 5 avu032.jpg Note In order to view the data using the thermo-hygrometer or the LogWare III software, the data must be saved in BINARY format. Set the BEGIN parameter to the beginning date and time of the data that is to be written to a data card. Set the END parameter to the ending time and date of the data that is to be written to a data card. Choosing END for the END parameter will automatically select the most recent reading as the END parameter.
5020A Users Manual Figure 5-32. File View avu033.jpg To view a file select the file to open by using the A D buttons and press E. You may choose between numeric and graphic format. To view data in numeric format, select NUMERIC in the mode field using the A D buttons and press E. Use the du buttons to scroll through the data (you can go back three screens) and the B C buttons to scroll among data blocks. To view data in graphic format, select GRAPHIC in the mode field using the A D buttons and press E.
Menu Functions Alarm Menu Figure 5-33. Alarm 5 avu034.jpg The A D buttons are used to select the menu option. The B C buttons are used to change the parameter setting. Press the E button to save the new setting. Press the F button to cancel any changes made and exit to the menu. Alarm Setting The ALARM SETTING function is used to enable or disable visible and audible alarm notifications. The parameters are BEEP and DISPLAY.
5020A Users Manual Sensor Alarm The SENSOR ALARM function allows the setting of the alarm parameters for each channel. To set alarm parameters, a channel number and measurement type (T or H) must first be selected using B C and ENTER buttons. avu036.jpg Figure 5-35. Sensor Alarm The PARAM parameter is selectable between 1/T, 1/H, 2/T, 2/H. The 1 and 2 refer to the channel selected, T is temperature and H is humidity. The A D buttons are used to select the menu option.
Menu Functions System Menu Figure 5-36. System Alarm 5 avu037.jpg The A D buttons are used to select the menu option. The B C buttons are used to change the parameter setting. Press the E button to save the new setting. Press the F button to cancel any changes and exit to the menu. Alarm View The ALARM VIEW function displays alarm occurrences. The word ALARM flashes at the top of the display and any alarm condition is displayed with the time and date that the alarm occurred. Figure 5-37.
5020A Users Manual Figure 5-38. System Menu avu039.jpg The A D buttons are used to select the menu option. The B C buttons are used to change the parameter settings. Press the E button to save the new setting. Press the F button to cancel any changes and exit to the menu. System Setting The SYSTEM SETTING function allows you to change the temperature measurement unit. The UNIT parameter switches between C (Celsius) or F (Fahrenheit). This may be password protected with the SENSOR password parameter.
Menu Functions System Menu 5 Date Time The DATE TIME function is used for setting the time-of-day clock, time format, date, and date format. This may be password protected using the TIME password parameter in the PASSWORD menu functions. When this function is selected available parameters are HOUR, MINUTE, SECOND, T FORM, DAY, MONTH, YEAR, D FORM, and DAYL S. avu041.jpg Figure 5-40. Data Time The HOUR parameter allows the user to set the time-of-day clock hour (0 through 23).
5020A Users Manual occur with the North America daylight saving mode if the daily stats record time is 01:00, since this time will occur twice in one day. Another effect is with viewing data on a graph in real time. Data is plotted on the graph sequentially as measurements are made and the graph is scrolled uniformly. No adjustment is made to the real-time graph when the time changes.
Menu Functions System Menu Figure 5-41. Comm Setting 5 avu042.jpg The B C buttons are used to change the parameter setting. Press the E button to save the new setting. Press the F button to cancel any changes and exit to the menu. Serial When the SERIAL port is selected, the parameters for the serial port are displayed beneath the PORT selection. These parameters are: BAUD, LF, ECHO, SER PER, and PRINT. avu043.jpg Figure 5-42.
5020A Users Manual serial port. Echo mode ON is useful when using terminal emulation software on a computer to communicate with the instrument. Selecting OFF disables echoing. Echo mode OFF is commonly used when using control software on the computer. The SER PER parameter allows the user to select the interval at which measurements are automatically transmitted over the serial port. The user may choose between 1, 2, 5, 10, 15, and 30 seconds, 1, 2, 5, 10, 15, 20, and 30 minutes, and 1 hour.
Menu Functions System Menu Figure 5-44. Password 5 avu045.jpg By default the password is set to “5020A” when the instrument ships from the factory. We recommend the user changes the default password to secure the password-protected settings. NOTE Keep your password in a secure location. If an incorrect password is entered, the message WRONG PASSWORD is displayed and access to the password-protected parameters is denied. Press the E button to reenter the password.
5020A Users Manual System Info The SYSTEM INFO function displays information about the thermo-hygrometer. The information includes the manufacturer, model number, serial number, firmware version, boot version, and battery level. avu002.jpg Figure 5-45. System Info Press the E button when you are done viewing the system information or the F button.
Chapter 6 Digital Communications Interface Title Introduction........................................................................................................ Communications ................................................................................................ Serial Wiring ................................................................................................. Interface Commands ..........................................................................................
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Digital Communications Interface Introduction 6 Introduction The communication feature allows an external device, such as a computer, to communicate with the thermo-hygrometer readout to obtain measurement data and control operation settings. Communication is accomplished by issuing commands to the thermo-hygrometer readout through RS-232 or IR communication ports. Communications The thermo-hygrometer readout is equipped with an RS-232 serial interface and an infrared window.
5020A Users Manual Interface Commands Command Summary An alphabetical listing of the commands implemented by the thermo-hygrometer readout are shown in Table 6-1. These commands can be used with either serial or IR communications ports. Command Syntax The thermo-hygrometer readout accepts commands that set parameters, execute functions or respond with requested data. These commands are in the form of strings of ASCIIencoded characters. As far as possible, the thermo-hygrometer readout conforms to SCPI1994.
Digital Communications Interface Interface Commands *OPT? Returns configuration options *RST Sets the instrument operating parameters to defined conditions *SRE? Returns the Service Request Enable register *SRE |MIN|MAX|DEF Sets the Service Request Enable register *STB? Returns the Status Byte register *TST? [] Returns the self-test results (0: startup test; 1: new test) ALARm:BATTery? Returns the battery alarm event ALARm:BATTery:ENABle? Returns the state of the battery alarm ena
5020A Users Manual 6-6 ALARm:RHUMidity:SENSor:ENABle? Returns the state of the humidity sensor alarm enable for the specified channel ALARm:RHUMidity:SENSor:ENABle Enables or disables the humidity sensor alarm for the specified channel ALARm:RHUMidity:UPPer? Returns the state of the high humidity event for the specified channel ALARm:RHUMidity:UPPer:ENABle? Returns the state of the high humidity alarm enable for the specified channel ALARm:RHUMidity:UPPer:ENABle
Digital Communications Interface Interface Commands ALARm:TEMPerature:UPPer:ENABle? Returns the state of the high temperature alarm enable for the specified channel ALARm:TEMPerature:UPPer:ENABle Enables or disables the high temperature alarm for the specified channel ALARm:TEMPerature:UPPer:LIMit? Returns the high temperture alarm limit for the specified channel ALARm:TEMPerature:UPPer:LIMit |MIN|MAX|DEF Sets the high temperture alarm limit for the specified channel
5020A Users Manual m>? 6-8 CALCulate:PARameter: AVERerage:CLEar Resets all running statistics CALCulate:PARameter: AVERerage:DATA? Returns a running statistic for the specified channel CALCulate[]:PARameter: AVERerage:TYPE? Returns statistical type for the specified channel (temperature, humidity, type) CALCulate:PARameter:RATE? Returns rate calculation for the specified channel CALCulate[]:PARameter[]:RATE:TIME? Returns the rate t
Digital Communications Interface Interface Commands 6 specified channel DATa:RECord:FREE? Returns the recording memory usage DATa:RECord:OPEN? Returns the number of bytes in the open data set DATa:RECord:OPEN (,,,,,[, ,,,,,) Opens the range of data for reading DATa:RECord:READ? [] Returns a group of data DATa:RECord:TIMe? Returns the data recording timer DATa:RECord:TIMe |MIN|MAX|DEF Sets the data recordin
5020A Users Manual 6-10 STATus:ALARm:ENABle |MIN|MAX|DEF Sets the alarm status enable STATus:MEASure? Returns and clears the measurement status event STATus:MEASure:CONDition? Returns the measurement status condition STATus:MEASure:ENABle? Returns the measurement status enable STATus:MEASure:ENABle |MIN|MAX|DEF Sets the measurement status enable STATus:OPERation? Returns and clears the operation status event STATus:OPERation:CONDition? Returns the operation status condition STATus:
Digital Communications Interface Interface Commands SYSTem:FIRMware:VERSion? Returns the system firmware version SYSTem:KLOCkout? Returns the state of the button panel lockout SYSTem:KLOCkout Enables or disables the button panel lockout SYSTem:PASSword:ALARm? Returns the state of the alarm settings password protection SYSTem:PASSword:ALARm Enables or disables the alarm settings password protection SYSTem:PASSword:CDISable Disables password-protected commands SYSTem:PASSword:CENabl
5020A Users Manual Commands Table 4 lists the commands in alphabetical order. In this section the commands are arranged into the following groups: Alarm Commands - commands for alarm settings. alarm commands Measurement Commands - commands for reading measurement data. Data Commands –commands for setting and reading data information Measurement Control Commands – commands for the timing and action of the measurement process. Channel Commands - commands for selecting channels.
Digital Communications Interface Commands • indicates a one or two digit number for the hour (0 to 23) is required. • indicates a one or two digit number for the minute is required. • indicates a one or two digit number for the second is required. • indicates a valid baud rate setting is required. • For query commands, specifying the MIN, MAX, or DEF parameter causes the instrument to respond with the minimum, maximum, or default setting respectively.
5020A Users Manual ALARm:BEEP Sets the state of the audible alarm enable. Example: ALAR:BEEP 1 The parameter turns the alarm beep enable on (1 or ON) or off (0 or OFF). This command may be password protected (see Password Commands). ALARm:CLEar Clears the alarm events. Example: ALAR:CLE The alarm clear command clears the alarm events. ALARm:DATE:FIRSt? Returns the date of the first alarm event.
Digital Communications Interface Commands 6 Response: 0 A value of 1 is returned if a power loss alarm event has occurred. A value of 0 is returned if a power loss alarm event has not occurred. ALARm:POWer:ENABle? Returns the state of the power loss alarm enable. Example: ALAR:POW:ENAB? Response: 0 A value of 1 is returned if the power loss alarm is enabled. A value of 0 is returned if the power loss alarm is disabled. ALARm:POWer:ENABle Sets the state of the power loss alarm enable.
5020A Users Manual Response: 20.00 The RHUMidity suffix, , specifies the channel (1 or 2). Specifying the MIN, MAX, or DEF parameter returns the minimum, maximum, or default value respectively. ALARm:RHUMidity:LOWer:LIMit |MIN|MAX|DEF Sets the lower humidity alarm limit for the specified channel in %RH. Example: ALAR:RHUM1:LOW:LIM 25.00 The RHUMidity suffix, , specifies the channel (1 or 2). The parameter specifies the value for the lower humidity alarm limit.
Digital Communications Interface Commands 6 ALARm:RHUMidity:RATE:LIMit |MIN|MAX|DEF Sets the humidity rate alarm limit for the specified channel in %RH per hour. Example: ALAR:RHUM1:RATE:LIM 1 The RHUMidity suffix, , specifies the channel (1 or 2). The parameter specifies the value for the humidity rate alarm limit. Specifying the MIN, MAX, or DEF parameter sets the humidity rate alarm limit to the minimum, maximum, or default value respectively.
5020A Users Manual The RHUMidity suffix, , specifies the channel (1 or 2). A value of 1 is returned if the upper humidity alarm is enabled. A value of 0 is returned if the upper humidity alarm is disabled. ALARm:RHUMidity:UPPer:ENABle Sets the state of the upper humidity alarm enable for the specified channel. Example: ALAR:RHUM1:UPP:ENAB 1 The RHUMidity suffix, , specifies the channel (1 or 2). The parameter turns the upper humidity alarm on (1 or ON) or off (0 or OFF).
Digital Communications Interface Commands 6 Example: ALAR:TEMP1:LOW:ENAB 1 The TEMPerature suffix, , specifies the channel (1 or 2). The parameter turns the lower temperature alarm on (1 or ON) or off (0 or OFF). This command may be password protected (see Password Commands). ALARm:TEMPurature:LOWer:LIMit? [MIN|MAX|DEF] Returns the lower temperature alarm limit for the specified channel in degrees C or F. Example: ALAR:TEMP1:LOW:LIM? Response: 18.
5020A Users Manual ALARm:TEMPurature:RATE:LIMit? [MIN|MAX|DEF] Returns the temperature rate alarm limit for the specified channel in degrees (C or F) per hour. Example: ALAR:TEMP1:RATE:LIM? Response: 5 The TEMPerature suffix, , specifies the channel (1 or 2). The value returned is always in the current temperature units (C or F). Specifying the MIN, MAX, or DEF parameter returns the minimum, maximum, or default value respectively.
Digital Communications Interface Commands 6 Example: ALAR:TEMP1:UPP? Response: 0 The TEMPerature suffix, , specifies the channel (1 or 2). A value of 1 is returned if an upper temperature alarm event has occurred on the specified channel. A value of 0 is returned if an upper temperature alarm event has not occurred on the specified channel. ALARm:TEMPurature:UPPer:ENABle? Returns the state of the upper temperature alarm enable for the specified channel.
5020A Users Manual ALARm:TIME:LAST? Returns the time of the last alarm event. Example: ALAR:TIME:LAST? Response: 15,43,19 The response is returned in the format, ,,. Measurement Commands The measurement commands are used to read information on the statistical calculations and for reading the most recent measurement for a specified channel. CALCulate:AVERage:CLEar Resets all running statistics for both channels.
Digital Communications Interface Commands 6 CALCulate[]:PARameter[]:AVERage[]:DATA? Returns the specified statistical calculation for the specified channel. This is the same as the CALCulate,chn.:PARameter:AVERage? command (see ). CALCulate[]:PARameter:AVERage:TYPE? Returns the name of the specified statistical type for the specified channel. Example: CALC1:PAR1:AVER4:TYPE? Response: “T MAX” The CALCulate suffix, , specifies the channel (1 or 2).
5020A Users Manual Specifying the MIN, MAX, or DEF parameter returns the minimum, maximum, or default value respectively. CALCulate[]:PARameter:RESolution |MIN|MAX|DEF Sets the display resolution. Example: CALC:PAR2:RES 2 The PARameter suffix, , specifies either temperature resolution (1) or relative humidity resolution (2). The parameter specifies the number of decimal places to use.
Digital Communications Interface Commands 6 FORMat:TDST:STATe? Returns the time and date stamp enable for the FETC?, MEAS?, and READ? commands. Example: FORM:TDST:STAT? Response: 0 A value of 1 is returned if the time and date stamp is enabled. A value of 0 is returned if the time and date stamp is disabled. FORMat:TDST:STATe Sets the time and date stamp enable for the FETC?, MEAS?, and READ? commands.
5020A Users Manual Data Commands The data commands are used to access daily statistics or recorded measurements. DATa:DSTatistics:ENABle? Returns the state of the daily statistics recording enable. Example: DAT:DST:ENAB? Response: 0 A value of 1 is returned if the daily statistics recording is enabled. A value of 0 is returned if the daily statistics recording is disabled. DATa:DSTatistics:ENABle Sets the state of the daily statistics recording.
Digital Communications Interface Commands 6 DATa:DSTatistics:RHOur? [MIN|MAX|DEF] Returns the daily statistics reset time. Example: DAT:DST:RHO? Response: 12 Specifying the MIN, MAX, or DEF parameter returns the minimum, maximum, or default value respectively. DATa:DSTatistics:RHOur |MIN|MAX|DEF Sets the daily statistics reset time. Example: DAT:DST:RHO 0 The parameter specifies the hour for the daily statistics reset time.
5020A Users Manual DATa:DSTatistics:RECord:ETIMe? [] Returns the daily statistics recording end time. Example: DAT:DST:REC:ETIM? Response: 23,59,59 The parameter specifies the daily statistics record number. If none is specified, record 1 is assumed. The response is returned in the format, ,,. DATa:DSTatistics:RECord:FIND? (,,) Returns the daily statistics record number for the given date.
Digital Communications Interface Commands 6 DATa:RECord:FEED:TEMPerature? Returns the state of the temperature recording enable for the specified channel. Example: DAT:REC:FEED:TEMP1? Response: 1 The TEMPerature suffix , specifies the channel (1 or 2). A value of 1 is returned if temperature recording for the specified channel is enabled. A value of 0 is returned if temperature recording for the specified channel is disabled.
5020A Users Manual the current date and time. If not specified, the actual time/date range of the data will likely include more data than requested because fo the sizes of the data blocks in memory. Use this command in conjunction with the DATa:RECord:OPEN? and DATa:RECord:READ? commands to extract data from memory. DATa:RECord:READ? [] Reads a block of data from memory.
Digital Communications Interface Commands 6 Example: SENS:AVER? Response: 1 A value of 1 is returned if the measurement averaging is enabled. A value of 0 is returned if the measurement averaging is disabled. SENSor:AVERage Sets the measurement average setting. Example: SENS:AVER 1 The parameter turns the measurement averaging on (1 or ON) or off (0 or OFF). This command may be password protected (see Password Commands).
5020A Users Manual SENSor:STATe? Returns the sensor status for the specified channel. Example: SENS1:STAT? Response: 0 The SENSor suffix, , specifies the channel (1 or 2). The response to this command is a number that indicates the state of the sensor on the specified channel. A value of 0 indicates a sensor is connected and reading properly. The table below details all other possible values. Note that the response may indicate more than one of the following conditions.
Digital Communications Interface Commands 6 The parameter specifies the channel (1 or 2). A value of 1 is returned if the specified channel is on. A value of 0 is returned if the specified channel is off. ROUTe:CLOSe Switches on the specified channel. Example: ROUT:CLOS 1 The parameter specifies the channel (1 or 2) to switch on. This command may be password protected (see Password Commands) ROUTe:OPEN? Returns the state of the specified channel.
5020A Users Manual Response: 2003,9,17 The CALibrate suffix, , specifies the channel (1 or 2). The response is returned in the format, ,,. CALibrate:DATE:CALibrate (,,) Sets the sensor calibration date for the specified channel. Example: CAL1:DATE:CAL 2003,9,17 The CALibrate suffix, , specifies the channel (1 or 2). The , , and parameters must all be specified. The parameter is a four-digit number.
Digital Communications Interface Commands 6 CALibrate:PARameter:OFFSet Sets the sensor calibration offset parameter for the specified channel. Example: CAL1:PAR:OFFS2 -0.025 The CALibrate suffix, , specifies the channel (1 or 2). The OFFSet suffix, , specifies either temperature (1) or humidity (2). The parameter specifies the value for the offset parameter. This command is password protected (see Password Commands).
5020A Users Manual The following parameters are set when this command is issued. • Sets the measurement period to 2 seconds. • Sets the measurement averaging on. • Sets printing to the serial port • Sets the temperature units to C. • Sets the temperature resolution to 2 decimal places and the relative humidity resolution to 1 decimal place. • Stops auto logging. • Sets the statistical functions. SYSTem:BOOT:VERSion? Returns the boot ROM version. Example: SYST:BOOT:VERS? Response: 0.
Digital Communications Interface Commands 6 UNIT:TEMPerature Sets the system temperature unit. Example: UNIT:TEMP C The parameter must be either C or CEL for Celsius or F or FAR for Fahrenheit. The *RST command sets the temperature unit to Celsius. Communication Interface Commands The communication interface commands are used for querying and setting serial port and IR configuration parameters. SYSTem:COMMunicate:IR:MODE? Returns the IR mode setting.
5020A Users Manual A value of 1 is returned if serial port echo (duplex) is ON. A value of 0 is returned if serial port echo (duplex) is OFF. SYSTem:COMMunicate:SERial:FDUPlex Sets the serial port echo (duplex) setting. Example: SYST:COMM:SER:FDUP 1 The parameter turns serial port echo (duplex) mode on (1 or ON) or off (0 or OFF). A baud rade of 57600 suspends echo (full duplex). SYSTem:COMMunicate:SERial:FEED? Returns the state of the serial port auto printing.
Digital Communications Interface Commands 6 Example: SYST:COMM:SER:TIM 120 The parameter can be one of the following values: 1, 2, 5, 10, 15, 30, 60, 120, 300, 600, 900, 1200, 1800, or 3600. If a value other than one listed here is used, the instrument automatically selects the nearest acceptable value that is less than the value entered. Values greater than 3600 or less than 1 are ignored.
5020A Users Manual SYSTem:DATE:FORMat? [MIN|MAX|DEF] Returns the date format used for the display. Example: SYST:DATE:FORM? Response: 1 Specifying the MIN, MAX, or DEF parameter returns the minimum, maximum, or default value respectively. Section , Date and Time Formats, shows the supported date formats. SYSTem:DATE:FORMat |MIN|MAX|DEF Sets the date format used for the display. Example: SYST:DATE:FORM 0 The parameter can be any of the values indicated in Section , Date and Time Formats.
Digital Communications Interface Commands 6 Example: SYST:TIME 11,43,28 The , , and parameters must all be specified. The parameter is a one or two-digit number (0 to 23). The parameter is a one or two-digit number (0 to 59). The parameter is a one or two-digit number (0 to 59). This command may be password protected (see Password Commands). Note The system time is always set using 24-hour format regardless of the clock time setting.
5020A Users Manual SYSTem:PASSword:ALARm? Returns the state of the alarm settings password protection. Example: SYST:PASS:ALAR? Response: 0 A value of 1 is returned if the alarm settings are password protected; otherwise a value of 0 is returned. SYSTem:PASSword:ALARm Sets the state of the alarm settings password. Example: SYST:PASS:ALAR 1 The parameter turns the alarm settings password protection on (1 or ON) or off (0 or OFF). This command is password protected.
Digital Communications Interface Commands 6 Caution If the password is forgotten, the themo-hygrometer must be returned to an Authorized Service Center to have the password restored. SYSTem:PASSword:RECord? Returns the state of data recording settings password-protection. Example: SYST:PASS:REC? Response: 0 A value of 1 is returned if data recording password settings are password-protected; otherwise a value of 0 is returned.
5020A Users Manual Example: SYST:PASS:STAT 1 The parameter turns the statistics settings password-protection on (1 or ON) or off (0 or OFF). This command is password protected. Commands protected with this setting are: CALC:AVER:CLE and DATA:DST... , SYSTem:PASSword:TIME? Returns the state of the date and time password-protection. Example: SYST:PASS:TIME? Response: 0 A value of 1 is returned if the date and time password-protection is enabled. otherwise, a value of 0 is returned.
Digital Communications Interface Commands 6 *ESR? This query command returns the Event Status Register. It also clears the Event Status Register and the ESB bit of the Status Byte Register. The value returned indicates the condition of each of the eight bits of the register by adding the binary-weighted values of each bit. The meaning of each bit, when set (1) , is as follows where 0 is the least significant and 7 is the most significant: 0 1 2 3 4 5 6 7 Operation complete (OPC).
5020A Users Manual Example command: *SRE 32 *STB? This query command returns the Status Byte Register. Reading this register does not affect it or the output queue. The value returned indicates the condition of each of the eight bits of the register by adding the binary-weighted values of each bit. The meaning of each bit, when set (1), is as follows where 0 is the least significant and 7 is the most significant: Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 Measurement Status Bit.
Digital Communications Interface Commands 6 bit 1 is 1: channel 2 sensor is unattached, locked out, or not operating properly 2nd number: channel 1 sensor test 0: no error bit 0 is 1: sensor unattached bit 1 is 1: sensor memory read failure bit 2 is 1: sensor parameter checksum error bit 3 is 1: sensor calibration parameters out of range bit 4 is 1: sensor calibration date is invalid bit 5 is 1: sensor identification is invalid bit 6 is 1: sensor version number is incompatible bit 7 is 1: sensor is locked
5020A Users Manual 10th number: button status (power-on test only) 0: no button press detected bit 0 is 1: F pressed during power on bit 1 is 1: A pressed during power on bit 2 is 1: D pressed during power on bit 3 is 1: C pressed during power on bit 4 is 1: B pressed during power on bit 5 is 1: E pressed during power on STATus:ALARm? This command reads and clears the Alarm Status Event Register.
Digital Communications Interface Commands 6 STATus:ALARm:ENABle? This command returns the Alarm Status Enable Register (see STATus:ALARm:ENABle command below). Example: STAT:ALAR:ENAB? Response: 32 STATus:ALARm:ENABle |MIN|MAX|DEF This command sets the Alarm Status Enable Register. This register determines which event bits of the Alarm Status Event Register affect the Alarm Status Bit of the Status Byte Register.
5020A Users Manual Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 measure bit. Channel 2 humidity measure bit. Not used Not used Not used. Not used. Example: STAT:MEAS:COND? Response: 15 STATus:MEASure:ENABle? This command returns the Measurement Status Enable Register (see STATus:MEASure:ENABle command below). Example: STAT:MEAS:ENAB? Response: 15 STATus:MEASure:ENABle |MIN|MAX|DEF This command sets the Measure Status Enable Register.
Digital Communications Interface Commands 6 register by adding the binary-weighted values of each bit. The meaning of each bit, when set (1), is as follows where 0 is the least significant and 7 is the most significant: 0: Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 no operation Not used. Not used. Not used. Not used. Measurement complete bit. Not used. Not used. Not used.
5020A Users Manual STATus:QUEStionable:CONDition? This command reads the Questionable Status Condition Register. Reading this register does not affect it. The value returned indicates the condition of each of the eight bits of the register by adding the binary-weighted values of each bit. The meaning of each bit, when set (1), is as follows where 0 is the least significant and 7 is the most significant: 0: Bit 0 Bit 1 Bit 2 Bit 3 Bit 4 Bit 5 Bit 6 Bit 7 no problem Not used. Not used. Not used. Not used.
Digital Communications Interface Commands 6 Date and Time Formats The following tables list the acceptable date and time formats and their number setting.
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Chapter 7 Calibration Procedure Title Introduction........................................................................................................ Equipment.......................................................................................................... Preparation......................................................................................................... Calibration Points ..............................................................................................
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Calibration Procedure Introduction 7 Introduction 5026A-x sensors used with the thermo-hygrometer should be periodically calibrated to ensure accuracy. A six-month calibration interval for the first year, and one-year thereafter, is recommended. The thermo-hygrometer display unit does not require calibration, and the sensor can be sent to a qualified service center for calibration without the thermo-hygrometer display unit.
5020A Users Manual 20% 25 °C 45% 25 °C 70% 25°C Table 7-3. 5026A-H Temperature Calibration Points Temperature at Relative Humidity 16 °C 45% 20 °C 45% 24 °C 45% Table 7-4. 5026A-H Relative Humidity Calibration Points Relative Humidity at Temperature 20% 20 °C 45% 20 °C 70% 20 °C Temperature and Humidity Measurement Errors The temperature and humidity measurement errors for the sensor are obtained at each of the calibration points.
Calibration Procedure Temperature and Humidity Adjustments 7 that the measurement errors first be obtained according to the procedure above in section Temperature and Humidity Measurement Errors. After the Temperature and Humidity Adjustments procedure is completed, perform the Temperature and Humidity Measurement Errors procedure again to verify the calibration. 1.
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Chapter 8 Maintenance and Troubleshooting Title Maintenance....................................................................................................... Troubleshooting ................................................................................................. Incorrect temperature or humidity reading.................................................... Missing or Scattered Graph Data................................................................... Blank screen ...........................
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Maintenance and Troubleshooting Maintenance 8 Maintenance The calibration instrument has been designed ease of operation and simplicity of maintenance as the central theme in the product development. Therefore, with proper care the instrument should require very little maintenance. Avoid operating the instrument in oily, wet, dirty, or dusty environments. • If the outside of the instrument becomes soiled, it may be wiped clean with a damp cloth and mild detergent.
5020A Users Manual Blank screen The screen appears blank when switched on. Ensure the power adapter is attached properly and the power is switched on. This problem can also be caused by improper adjustment of the contrast. After the power is switched on allow the thermo-hygrometer at least one minute to complete its self-test and power on sequence. Then, try to adjust the contrast using the A D buttons. Error message at power up The thermo-hygrometer reports an error during the power up self-test.
Maintenance and Troubleshooting Downloading Recorded Data SENSOR : CALIBRATION INVALID Cycle the power. Try a different sensor. Contact an Authorized Service Center. SENSOR : CALIBRATION EXPIRED Contact an Authorized Service Center to have the sensor recalibrated. Check the time/date to make sure it is correct. POWER DOWN: CALCULATION ERROR Contact an Authorized Service Center. POWER DOWN: SOFTWARE RESET Contact an Authorized Service Center.
5020A Users Manual Note When using IRCOMM and an IR dongle, the data transfer can be susceptible to interference from fluorescent lighting. CE Comments EMC Directive Fluke’s equipment has been tested to meet the European Electromagnetic Compatibility Directive (EMC Directive, 89/336/EEC). The Declaration of Conformity for your instrument lists the specific standards to which the unit was tested. The instrument was designed specifically as a test and measuring device.
Maintenance and Troubleshooting Frequently Asked Questions 8 on backup power for approximately 16 hours. When AC power is restored, the display will come back on and show a message stating the AC power was interrupted. Q. Can I swap out sensors in the field? A. Yes. The sensor's calibration information is stored in the sensor itself. When you change out the sensor, this information is automatically downloaded to the 5020A. There is no need to reprogram probe coefficients into the 5020A. Q.
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Index —A— AC adapter, 3-5, 3-6, 4-3 accessories, 2-3, 3-6 accuracy, 4-5, 4-6, 8-3 sensor, 4-5 accuracy specifications, 1-7 air velocity, 4-6 alarm battery, 5-26 menu, 5-24 power, 5-26 sensor, 5-26 setting, 5-25 system, 5-26 view, 5-27 alarm menu, 4-4 alarm screen, 4-4 alarm window, 3-3, 3-6 average, 5-4, 5-10, 5-18, 5-20 —B— basic operation, 4-3 battery, 2-3, 2-4, 3-5, 3-6, 4-3, 4-4, 5-10, 5-25, 5-26, 5-34 alarm, 5-26 baud rate, 5-31, 6-3, 6-10, 6-13, 6-37 beep, 5-25 buttons, 3-3, 3-4, 3-6 —C— calibratio
5020A Users Manual extension cable, 4-4 —F— firmware version, 5-34 —G— graph, 5-11, 5-12, 5-14, 5-16, 5-24, 5-30 humidity, 5-11, 5-24 temperature, 5-11 graphs, 5-9 —H— heat index, 5-10 humidity display resolutions, 5-8 —I— international electrical symbols, 1-4 IR interface, 6-3 IR port, 5-17, 5-20, 5-30, 5-32 IR Port, 3-4 IRDA, 5-17, 5-20, 5-32 IrDA mode, 5-32 —M— maintenance, 8-3 measurement period, 5-4, 5-25 measuring, 4-1, 4-4 menu Alarm, 5-1, 5-24 channel, 5-3 data, 5-13 DISPLAY, 5-7 system, 5-27
Index (continued) —W— —Z— warnings, 1-4 zone types, 5-9 3
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