® 725 Multifunction Process Calibrator Users Manual October, 1998 Rev.3, 5/04 © 1998-2004 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 three years and begins on the date of shipment. Parts, product repairs, and services are warranted for 90 days.
Table of Contents Title Introduction.................................................................................................................... Contacting Fluke............................................................................................................ Standard Equipment ...................................................................................................... Safety Information............................................................................................
725 Users Manual Using Thermocouples........................................................................................... Using Resistance-Temperature Detectors (RTDs) ............................................... Measuring Pressure .................................................................................................. Zeroing with Absolute Pressure Modules .................................................................. Using Source Mode.................................................
Contents (continued) External Fluke Pressure Module Compatibility ......................................................... Specifications................................................................................................................. DC Voltage Measurement......................................................................................... DC Voltage Source ...................................................................................................
725 Users Manual iv
List of Tables Table 1. 2. 3. 4. 5. 6. 7. 8A. 8B. 8C. 9. 10. 11. Title Page Summary of Source and Measure Functions........................................................................ International Symbols ........................................................................................................... Input/Output Terminals and Connectors ............................................................................... Key Functions ..........................................................
725 Users Manual vi
List of Figures Figure Title Page 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. Standard Equipment ............................................................................................................. Input/Output Terminals and Connectors ............................................................................... Keys......................................................................................................................................
725 Users Manual 18. 19. 20. 21. 22. 23. 24. Connections for Sourcing Pressure....................................................................................... Calibrating a Thermocouple Transmitter ............................................................................... Calibrating a Pressure-to-Current (P/I) Transmitter............................................................... Calibrating a Current-to-Pressure (I/P) Transmitter............................................................
Multifunction Process Calibrator Manual stepping and automatic stepping and ramping. Controls the calibrator remotely from a PC running a terminal emulator program. Introduction • Your Fluke 725 Multifunction Process Calibrator (referred to as “the calibrator”) is a handheld, battery-operated instrument that measures and sources electrical and physical parameters. See Table 1.
725 Users Manual Table 1. Summary of Source and Measure Functions Function Measure Source dc V 0 V to 30 V 0 V to 10 V dc mA 0 to 24 mA 0 to 24 mA Frequency 1 CPM to 10 kHz 1 CPM to 10 kHz Resistance 0 Ω to 3200 Ω 15 Ω to 3200 Ω Thermocouple Types E, J, K, T, B, R, S, L, U, N, mV RTD (ResistanceTemperature Detector) Pt100 Ω (385) Pt100 Ω (3926) Pt100 Ω (3916) Pt200 Ω (385) Pt500 Ω (385) Pt1000 Ω (385) Ni120 Pressure Other functions 2 27 modules ranging from 10 in.
Standard Equipment Standard Equipment Safety Information The items listed below and shown in Figure 1 are included with your calibrator. If the calibrator is damaged or something is missing, contact the place of purchase immediately. To order replacement parts or spares, see the user-replaceable parts list in Table 9. The calibrator is designed in accordance with IEC1010-1, ANSI/ISA S82.01-1994 and CAN/CSA C22.2 No. 1010.192.
725 Users Manual W Warning To avoid possible electric shock or personal injury: • Do not apply more than the rated voltage, as marked on the calibrator, between the terminals, or between any terminal and earth ground (30 V 24 mA max all terminals). • Before each use, verify the calibrator’s operation by measuring a known voltage. • Follow all equipment safety procedures. • Never touch the probe to a voltage source when the test leads are plugged into the current terminals.
Safety Information W Warning • When using a pressure module, make sure the process pressure line is shut off and depressurized before you connect it or disconnect it from the pressure module. • Use only 4 AA batteries, properly installed in the calibrator case, to power the calibrator. • Disconnect test leads before changing to another measure or source function. • When servicing the calibrator, use only specified replacement parts.
725 Users Manual AC72 Alligator Clips STORE SETUP 100% RECALL 25% 25% 0% 30V MAX ALL TERMINALS SOURCE / MEAS URE mA+ TL75 Test Lead Set 3W mA- V Hz RTD TC V mA MEASURE LOOP 4W COM COM Stackable Test Leads sh01f.eps Figure 1.
Safety Information Table 2. International Symbols AC - Alternating current Double insulated DC - Direct current Battery Earth ground Refer to the manual for information about this feature.
725 Users Manual Getting Acquainted with the Calibrator 1 Input and Output Terminals Figure 2 shows the calibrator input and output terminals. Table 3 explains their use. 725 MULTIFUNCTION CALIBRATOR V mA ZERO LOOP MEAS SOURCE V mA Hz TC RTD STORE SETUP ˚C ˚F 100% 25% RECALL 25% 0% 2 8 3 7 6 5 4 sh05f.eps Figure 2.
Getting Acquainted with the Calibrator Table 3. Input/Output Terminals and Connectors No Name Description A Pressure module connector Connects the calibrator to a pressure module or the calibrator to a PC for a remote control connection. B, C MEASURE V, mA terminals Input terminals for measuring voltage, current, and supplying loop power. D TC input/output Terminal for measuring or simulating thermocouples.
725 Users Manual Keys Figure 3 shows the calibrator keys and Table 4 explains their use.
Getting Acquainted with the Calibrator Table 4. Key Functions No Name Description A O Turns the power on or off. B l Selects voltage, mA or Loop Power measurement function in the upper display. C A Selects the pressure measurement function in the upper display. Repeated pushes cycle through the different pressure units. D K Zeros the pressure module reading. This applies to both upper and lower displays. E C Turns backlight on or off. Turns Contrast Adjust mode on when powering up.
725 Users Manual Table 4. Key Functions (cont.) No L Name L Description E P N Cycles through : Slow repeating 0 % - 100 % - 0 % ramp Fast repeating 0 % - 100 % - 0 % ramp Repeating 0 % - 100 % - 0 % ramp in 25 % steps AM OY AM OZ Enables Shut Down Mode M XW YZ Increases or decreases the source level. Disables Shut Down Mode Cycles through the 2-, 3-, and 4-wire selections. Moves through the memory locations of calibrator setups.
Getting Acquainted with the Calibrator Display Figure 4 shows the elements of a typical display. Loop Annunciator Memory Locations for Calibrator Setups Low Battery Symbol Units Display Mode Indicator Auto Ramp sh07f.eps Figure 4.
725 Users Manual Getting Started 6. This section acquaints you with some basic operations of the calibrator. Press X to increase the output to 5 V. Press and hold G to enter 5 V as the 100 % value. 7. Press H and I to step between 0 and 100 % in 25 % step increments. Proceed as follows to perform a voltage-to-voltage test: 1. 2. 3. Connect the calibrator’s voltage output to its voltage input as shown in Figure 5. Press O to turn on the calibrator. Press l to select dc voltage (upper display).
Shut Down Mode 725 MULTIFUNC TION CALIB RATOR V mA LOOP MEAS ZERO V mA Hz SOURCE TC RTD ˚C ˚F STORE SETUP 100% RECALL 25% 25% 0% sh39f.eps Figure 5.
725 Users Manual Contrast Adjustment Note Available with V2.1 Firmware or greater. To identify firmware version, press and hold J when powering up. The firmware version will be shown in the upper units display for about 1 second after initialization. 725 1 To adjust the contrast, proceed as follows: 1. 2. V mA 2 MEAS SOURCE STORE SETUP Press and hold X to darken contrast. Press and hold W to lighten contrast. 4. Press S to save the contrast level.
Using Measure Mode Using Measure Mode Measuring Electrical Parameters (Upper Display) 725 To measure the current or voltage output of a transmitter, or to measure the output of a pressure instrument, use the upper display and proceed as follows: 1. Press l to select volts or current. LOOP should not be on. MULTIFUNCTION CALIBRATOR V mA ZERO LOOP 2. Connect the leads as shown in Figure 7.
725 Users Manual 725 MULTIFUNCTION CALIBRATOR Red V mA ZERO LOOP MEAS SOURCE V mA TC Hz RTD ˚C ˚F TEST DC PWR STORE SETUP 100% RECALL 25% – ++ – 25% 0% + – Black sh18f.eps Figure 8.
Using Measure Mode Measuring Electrical Parameters (Lower Display) To measure the electrical parameters using the lower display, proceed as follows: 1. Connect the calibrator as shown in Figure 9. 2. If necessary, press M for MEASURE mode (lower display) 3. 725 Press V for dc voltage or current, or F for frequency or resistance. MULTIFUNCTION CALIBRATOR V mA ZERO LOOP MEAS SOURCE STORE SETUP RECALL V mA TC Hz RTD ˚C ˚F 100% 25% 25% 0% sh43f.eps Figure 9.
725 Users Manual Note Measuring Temperature If the calibrator and the thermocouple plug are at different temperatures, wait one minute or more for the connector temperature to stabilize after you plug the miniplug into the TC input/output. Using Thermocouples The calibrator supports ten standard thermocouples, including type E, N, J, K, T, B, R, S, L, or U. Table 5 summarizes the ranges and characteristics of the supported thermocouples. To measure temperature using a thermocouple, proceed as follows: 1.
Using Measure Mode Table 5.
725 Users Manual 30V MAX ALL TERMINALS SOURCE / MEASURE mA+ 3W MEASURE V Hz RTD mA4W COM TC V mA Process Temperature LOOP TC Warning COM 30 V maximum to TC Miniplug sh12f.eps Figure 10.
Using Measure Mode Using Resistance-Temperature Detectors (RTDs) The calibrator accepts RTD types shown in Table 6. RTDs are characterized by their resistance at 0 °C (32 °F), which is called the “ice point” or R0. The most common R0 is 100 Ω. The calibrator accepts RTD measurement inputs in two-, three-, or four-wire connections, with the three-wire connection the most common. A four-wire configuration provides the highest measurement precision, and two-wire provides the lowest measurement precision.
725 Users Manual Table 6. RTD Types Accepted RTD Type Ice Point (R ) 0 Material α Range (°C) Pt100 (3926) 100 Ω Platinum 0.003926 Ω/°C -200 to 630 Pt100 (385) 100 Ω Platinum 0.00385 Ω/°C -200 to 800 Ni120 (672) 120 Ω Nickel 0.00672 Ω/°C -80 to 260 Pt200 (385) 200 Ω Platinum 0.00385 Ω/°C -200 to 630 Pt500 (385) 500 Ω Platinum 0.00385 Ω/°C -200 to 630 Pt1000 (385) 1000 Ω Platinum 0.00385 Ω/°C -200 to 630 Pt100 (3916) 100 Ω Platinum 0.
Using Measure Mode 30V MAX ALL TERMINALS SOURCE / MEASURE mA+ 2W MEASURE V 3W TC RTD V mA Hz RTD LOOP COM COM mA4W Resistance to be measured 30V MAX ALL TERMINALS SOURCE / MEASURE mA+ 3W MEASURE V 3W TC V mA Hz RTD LOOP COM COM RTD mA4W 30V MAX ALL TERMINALS SOURCE / MEASURE mA+ 3W 4W MEASURE V TC V mA Hz RTD LOOP COM COM RTD mA4W sh15f.eps Figure 11.
725 Users Manual Measuring Pressure Many ranges and types of pressure modules are available from Fluke. See “Accessories” near the back of this manual. Before you use a pressure module, read its instruction sheet. The modules vary in use, media, and accuracy. Gage Differential Low 700P06 High 700P04 PRESSURE MODULE PRESSURE MODULE RANGE 100 PSIG RANGE 15 PSID/G 700 kPa 7 bar 100 kPa 1 bar BURST PRESSURE 300 PSIG BURST PRESSURE 45 PSIG Figure 12 shows the gage and differential modules.
Using Measure Mode To avoid damaging the pressure module from overpressure, never apply pressure above the rated maximum printed on the pressure module. To avoid damaging the pressure module from corrosion, use it only with specified materials. Refer to the printing on the pressure module or the pressure module instruction sheet for the acceptable material compatibility. 1. Connect a pressure module to the calibrator as shown in Figure 13.
725 Users Manual Isolation Valve Gage Module 725 MULTIFUNCTION CALIBRATOR V mA ZERO LOOP MEAS SOURCE V mA TC Hz RTD ˚C ˚F STORE SETUP 100% RECALL 25% Differential Module L H 25% Tank 0% sh37f.eps Figure 13.
Using Source Mode Using Source Mode 2. If necessary, press M for SOURCE mode. In SOURCE mode, the calibrator generates calibrated signals for testing and calibrating process instruments; supplies voltages, currents, frequencies, and resistances; simulates the electrical output of RTD and thermocouple temperature sensors; and measures gas pressure from an external source, creating a calibrated pressure source. 3. Press V until both mA and SIM display. 4.
725 Users Manual 725 MULTIFUNCTION CALIBRATOR V mA ZERO LOOP MEAS Red + +24 V SOURCE STORE SETUP RECALL V mA TC Hz RTD ˚C ˚F 100% 25% 25% 0% Loop Power Supply Black Readout or Controller – sh17f.eps Figure 14.
Using Source Mode mA 30V MAX ALL TERMINALS SOURCE / MEASURE + mA + mA Red + MEASURE V 3W TC V mA Hz RTD LOOP COM COM mA4W – Black Common V Hz 30V MAX ALL TERMINALS SOURCE / MEASURE mA+ Red + 3W MEASURE V TC V mA Hz RTD LOOP COM COM mA4W – Black Common sh16f.eps Figure 15.
725 Users Manual Simulating Thermocouples Simulating RTDs Connect the calibrator TC input/output to the instrument under test with thermocouple wire and the appropriate thermocouple mini-connector (polarized thermocouple plug with flat, in-line blades spaced 7.9 mm [0.312 in] center to center). One pin is wider than the other. Do not try to force a miniplug in the wrong polarization. Figure 16 shows this connection.
Using Source Mode 725 MULTIFUNCTION CALIBRATOR TEST DC PWR Color depends on type of TC V mA – ++ ZERO LOOP + MEAS SOURCE V mA TC – Hz RTD STORE SETUP ˚C ˚F 100% 25% RECALL 25% 0% TC TC Miniplug sh20f.eps Figure 16.
725 Users Manual SENSOR TERMINALS 1 725 MULTIFUNC TION CALIB RATOR 4 3 V mA LOOP MEAS ZERO V mA Hz SOURCE TC 2 RTD ˚C ˚F STORE SETUP 100% RECALL 25% BLACK 25% 0% RED BLACK sh40f.eps Figure 17.
Using Source Mode Sourcing Pressure The calibrator sources pressure by measuring pressure supplied by a pump or other sources, and displaying the pressure in the SOURCE field. Figure 20 shows how to connect a pump to a Fluke pressure module which makes it a calibrated source. Many ranges and types of pressure modules are available from Fluke. See “Accessories” near the back of this manual. Before you use a pressure module, read its Instruction Sheet. The modules vary in use, media, and accuracy.
725 Users Manual 1. Connect a pressure module to the calibrator as shown in Figure 18. The threads on the pressure modules accept standard ¼ NPT pipe fittings. Use the supplied ¼ NPT to ¼ ISO adapter if necessary. 2. Press U (lower display). The calibrator automatically senses which pressure module is attached and sets its range accordingly. 3. Zero the pressure module as described in the module’s Instruction Sheet. Modules vary in zeroing procedures depending on module type. 4.
Setting 0 % and 100 % Output Parameters Setting 0 % and 100 % Output Parameters You can now use this setting for the following: • Manually stepping an output with 25 % increments. For current output, the calibrator assumes that 0 % corresponds to 4 mA and 100 % corresponds to 20 mA. For other output parameters, you must set the 0 % and 100 % points before you can use the step and ramp functions. Proceed as follows: • Jump between the 0 and 100 % span points by momentarily pushing J or G.
725 Users Manual Auto Ramping the Output Storing and Recalling Setups Auto ramping gives you the ability to continuously apply a varying stimulus from the calibrator to a transmitter, while your hands remain free to test the response of the transmitter. When you press L, the calibrator produces a continuously repeating 0 % - 100 % - 0 % ramp in your choice of three ramp waveforms: • • • E P N 0 % - 100 % - 0 % 40-second smooth ramp To exit ramping, press any button. Table 7.
Calibrating a Transmitter Calibrating a Transmitter 4. Use the measurement (upper display) and source (lower display) modes to calibrate a transmitter. This section applies to all but pressure transmitters. The following example shows how to calibrate a temperature transmitter. Set your zero and span parameters by pressing X and W keys. Enter these parameters by pressing and holding J and G. For more information on setting parameters, see “Setting 0 % and 100 %” earlier in this manual. 5.
725 Users Manual 725 MULTIFUNCTION CALIBRATOR Red V mA ZERO LOOP MEAS SOURCE V mA TC Hz RTD ˚C ˚F TEST DC PWR STORE SETUP 100% RECALL 25% – ++ – 25% 0% + – Black sh44f.eps Figure 19.
Calibrating a Pressure Transmitter Calibrating a Pressure Transmitter The following example shows how to calibrate a pressure transmitter. Connect the calibrator to the instrument under test as shown in Figure 20. Proceed as follows: 1. Press l for current (upper display). If required, press l again to activate loop power. 2. Press U (lower display). 3. If necessary, press M for SOURCE mode. 4. Zero the pressure module. 5.
725 Users Manual Hand Pump S I G N A L 725 MULTIFUNCTION CALIBRATOR V mA MEAS SOURCE STORE SETUP RECALL V mA TC + – T E S T Pressure Module ZERO LOOP Measure mA Source Pressure 24 V Loop Power Enabled Hz RTD ˚C ˚F 100% 25% 25% 0% Red Black sh34f.eps Figure 20.
Calibrating an I/P Device Calibrating an I/P Device The following test allows you to calibrate a device that controls pressure. Proceed as follows: 1. Connect the test leads to the instrument under test as shown in Figure 21. The connections simulate a current-to-pressure transmitter and measures the corresponding output pressure. 2. Press A (upper display). 3. Press V for sourcing current (lower display). 4. If necessary, press M for SOURCE mode. 5.
725 Users Manual S I G N A L Measure Pressure Source mA 725 T E S T Pressure Module ZERO LOOP MEAS STORE SETUP RECALL – MULTIFUNCTION CALIBRATOR V mA SOURCE + V mA TC Hz RTD ˚C ˚F 100% 25% 25% 0% Red Black sh28f.eps Figure 21.
Testing an Output Device Testing an Output Device Use the source functions to test and calibrate actuators, recording, and indicating devices. Proceed as follows: 1. Connect the test leads to the instrument under test as shown in Figure 22. 2. Press V for current or dc voltage, or F for frequency or resistance (lower display). 3. 725 If necessary, press M for SOURCE mode.
725 Users Manual Remote Control Commands You can control the calibrator remotely from a PC running a terminal emulator program. The remote control commands give access to all capabilities of the calibrator with the exception of pressure measurement. See Table 8A-8C for the remote commands and explanations. The Fluke 700SC Serial Interface Cable Assembly (PN 667425) plugs into the pressure module connector and terminates in a DB-9 connector which plugs directly into a PC serial port.
Remote Control Commands Table 8B.
725 Users Manual Table 8B. Remote Control Lower Display (cont) Serial Input 0-9 -,. Description Enter a source value using ascii characters 0,1,2,...9,-,.terminated by (carriage return) b Single Broadcast of most recent lower display value and units Table 8C. "S" Commands Select Sensor Type Serial Input S 48 No.
Replacing the Batteries Replacing the Batteries 1. Turn the calibrator off, remove the test leads from the terminals, and hold the calibrator face down. 2. Using a flat-blade screwdriver, turn the battery door screws 1/4-turn counterclockwise and remove the battery door. 3. Remove and replace the damaged fuse. 4. Replace the battery door and secure it by turning the screws 1/4-turn clockwise.
725 Users Manual Maintenance Cleaning the Calibrator W Warning To avoid personal injury or damage to the calibrator, use only the specified replacement parts and do not allow water into the case. Caution To avoid damaging the plastic lens and case, do not use solvents or abrasive cleansers. Battery and Compartment Clean the calibrator and pressure modules with a soft cloth dampened with water or water and mild soap. Service Center Calibration or Repair Fuse Compartment sh38f.eps Figure 23.
Maintenance pack the calibrator securely, using the original shipping container if it is available. Send the equipment postage paid and insured, to the nearest Service Center. Fluke assumes no responsibility for damage in transit. The Fluke 725 calibrator covered by the warranty will be promptly repaired or replaced (at Fluke’s option) and returned to you at no charge. See the back of the title page for warranty terms.
725 Users Manual 17 1 22 10 11 2 8 9 12 3 13 7 20 4 6 14 3 5 16 18 15 19 6 21 23 zi45f.eps Figure 24.
Accessories Accessories External Fluke Pressure Module Compatibility For more information about these accessories and their prices, contact your Fluke representative. Pressure Modules and Fluke model numbers (see Table 10) are listed below. (Differential models also operate in gage mode.) Contact your Fluke representative about new pressure modules not listed here. • 700HTP 0 to 10,000 PSI Pump • 700PTP -11.
725 Users Manual Table 11.
Accessories Table 11. Pressure Modules (cont.
725 Users Manual DC Voltage Source Specifications Specifications are based on a one year calibration cycle and apply from +18 °C to +28 °C unless stated otherwise. All specifications assume a 5 minute warmup period. DC Voltage Measurement Range Resolution 30 V (upper display) 0.001 V 20 V (lower display) 0.001 V 90 mV 0.01 mV Accuracy, (% of Reading + Counts) 0.02 % + 2 Resolution 100 mV 0.01 mV 0.02 % + 2 10 V 0.001 V 0.
Specifications DC mA Measurement and Source Range 24 mA Ohms Source Accuracy, (% of Reading + Counts) Resolution 0.001 mA Ohms Range Excitation Current from Measurement Device Accuracy ±Ω 15 to 400 Ω 0.15 to 0.5 mA 0.15 Temperature coefficient -10 °C to 18 °C, +28 °C to 55 °C: ±0.005 % of range per °C 15 to 400 Ω 0.5 to 2 mA 0.1 400 to 1.5 kΩ 0.05 to 0.8 mA 0.5 Drive capability: 1000 Ω at 20 mA 1.5 to 3.2 kΩ 0.05 to 0.
725 Users Manual Frequency Source Range B Resolution Accuracy (% of output frequency) 2.0 to 1000.0 CPM 0.1 CPM ± 0.05 % 1 to 1000 Hz 1 Hz ± 0.05 % 1.0 to 10.0 kHz 0.1 kHz ± 0.25 % Waveform: 5 V p-p squarewave, -0.1 V offset Temperature, Thermocouples Type J K T E R S 58 Range -200 to 0 °C 0 to 1200 °C -200 to 0 °C 0 to 1370 °C -200 to 0 °C 0 to 400 °C -200 to 0 °C 0 to 950 °C -20 to 0 °C 0 to 500 °C 500 to 1750 °C -20 to 0 °C 0 to 500 °C 500 to 1750 °C Measure and Source Accuracies (ITS-90) 1.
Specifications Loop Power Supply Voltage: 24 V Maximum current: 22 mA Short circuit protected RTD Excitation (simulation) Allowable Excitation by RTD type Ni 120 0.15 to 3.0 mA Pt 100-385 0.15 to 3.0 mA Pt 100-392 0.15 to 3.0 mA Pt 100-JIS 0.15 to 3.0 mA Pt 200-385 0.15 to 3.0 mA Pt 500-385 0.05 to 0.80 mA Pt 1000-385 0.05 to 0.40 mA Temperature, RTD Ranges, and Accuracies (ITS-90) Accuracy Range °C Measure 4-Wire °C Measure 2- and 3-Wire* °C Source °C -80 to 260 0.2 0.3 0.2 - 200 to 800 0.33 0.5 0.
725 Users Manual Pressure Measurement Range Determined by pressure module Resolution 5 digits Accuracy Determined by pressure module Units psi, inH2O@4 °C, inH2O@20 °C, kPa, cmH2O@4 °C, cmH2O@20 °C, bar, mbar, kg/cm2, mmHg, inHg General Specifications Operating temperature -10 °C to 55 °C Storage temperature - 20 °C to 71 °C Operating altitude 3000 meters above mean sea level Relative Humidity (% RH operating without condensation) 90 % (10 to 30 °C) 75 % (30 to 40 °C) 45 % (40 to 50 °C) 35 % (50
Index —0— —B— —E— 0% output parameter, setting, 36 Battery, replacing, 48 —1— —C— Electrical parameters measurement, 18 sourcing, 28 100% output parameter, setting, 36 Calibration, 49 Cleaning calibrator, 49 Connections for pressure measurement, 25 for pressure sourcing, 35 —G— —D— I/P device, calibrating, 42 Input terminals, 8 Input/output terminals and connectors (table), 9 —4— 4 to 20 mA transmitter simulating, 28 —A— Accessories, 52 Auto ramping output, 37 Display, 13 Getting started, 1
5 Users Manual —K— Key functions (table), 11 Keys, 10 —L— Loop power simulating, 28 supplying, 16 —M— Measure functions, summary (table), 2 Measure mode, 16 Measuring pressure, 25 temperature with RTDs, 22 temperature with thermocouples, 19 —O— Output device, testing, 44 Output terminals, 8 —P— Parts list, 50 62 Pressure modules available, 52 Pressure modules, zeroing, 26 Pressure transmitter, calibrating, 40 —R— Recalling setups, 37 Remote control commands, 45 Repair, 49 RTD simulating, 31 RTD me
Manual Supplement Manual Title: 725 Users Print Date: October 1998 Revision/Date: 3, 5/04 Supplement Issue: Issue Date: Page Count: 2 5/07 2 This supplement contains information necessary to ensure the accuracy of the above manual. This manual is distributed as an electronic manual on the following CD-ROM: CD Title: CD Rev. & Date: CD PN: © 2004-2007 Fluke Corporation. All rights reserved. Printed in the U.S.A.
725 Users Manual Supplement Change #1 On page 59, under RTD Excitation (simulation) change the following: From: PT 200-385 0.15 to 3.0 ma PT 200-385 0.05 to 0.80 mA To: Under Temperature, RT Ranges, and Accuracies (ITS-90) replace the Allowable excitation current (source) with the following: Ni120, Pt100-385, Pt100-392, Pt100-JIS: 0.15 to 3.0 mA Pt200-385, Pt500-385: 0.05 to 0.80 mA; Pt1000-385: 0.05 to 0.
725 Users Manual Supplement Change #2, 40767 On page 60, under General Specifications, add the following: Battery life Battery life under load value 25 hours typical 12 mA in 500 Y = 12 hrs Protection Class Pollution Degree II 2 5/07
