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Unpacking Instructions Remove the Packing List and verify that you have received all equipment, including the following (quantities in parentheses): OS550 or OS550-BB Series Infrared Thermometer with Sensor Head (1) RS-232 Cable with connector/adapter (OS552, OS553, OS554) only (1) CD Software ( OS552, OS553, OS554) only (1) User’s Guide (1) Optional Accessories: Model No.
OS550 Series Industrial Infrared Thermometer This page is intentionally blank ii
OS550/OS550-BB Series Industrial Infrared Thermometer TABLE OF CONTENTS Page Unpacking Instructions ...................................................................... i Chapter 1 General Description .................................................... 1-1 1.1 Introduction ......................................................................................... 1-1 1.2 Thermometer Features ....................................................................... 1-2 1.2.1 Display Details.................
TABLE OF CONTENTS OS550/OS550-BB Series Industrial Infrared Thermometer Page Chapter 4 Laser Sight Accessory ................................................... 4-1 4.1 Warnings and Cautions ...................................................................... 4-1 4.2 Description ........................................................................................... 4-2 4.3 Operating the Laser ............................................................................. 4-3 4.3.
General Description 1 1.1 Introduction The OS550 Series Industrial Infrared (IR) Thermometers provide non-contact temperature measurement up to 2500°F (1371°C). They offer effective solutions for many non-contact temperature applications, including the following: • Predictive Maintenance: Tracking temperature shifts which indicate pending failure in solenoid valves. • Energy Auditing: Locating wall insulation voids to reduce building heating costs.
1 General Description 1.2 Thermometer Features The thermometer is easy to use: • Temperature readings are switchable from °F to °C via the keypad. • Parameters, such as target material emissivity and alarm setpoints, can be set and remain in memory until reset. This instrument has a rugged and functional design, including: • Sealed keypad display. Table 1-1.
General Description 1 1.2.1 Display Details 2 1 MAX658 ATC 9 750 FUNC 4 5 6 LOCK ▼ F-C 8 3 PRN F C ▼ 10 HAL LAL 7 - Figure 1-1. Display and Keypad View Table 1-2.
1 General Description 1.2.2 Parts of the Thermometer/Transmitter NEMA Housing, Keypad, Display and Output Electronics (OS550 Series) OEM Style Keypad, Display, and Electronics (OS550-BB Series) Sensor Head Shown with optional mounting bracket, OS550-MB and mounting nut OS550-MN Figure 1-2. OS550/OS550-BB Series Industrial Infrared Thermometer Front View The display is shown in more detail in Figure 1-1 and described in Table 1-2. Note: There are no user-serviceable parts in the thermometer.
Installing the Infrared Thermometer 2 2.1 Installation 2.1.1 Sensor Head Installation The OS550’s sensor head is made of black anodized aluminum. Both ends of the sensor head come with a 11⁄2 - 20 standard threaded mounting connection. The sensor head is connected to the main display electronics via a 15' shielded cable and environmentally sealed twist lock connector. Mounting accessories are available. See pages 2-4, 2-5 for model numbers and dimensions. Also see page 2-2 for sensor head dimensions.
2 Installing the Infrared Thermometer 29.2 (1.15) 2.2 Sensor Head Dimensions 29.2 (1.15) 109.2 (4.30) 160.3 (6.31) 11⁄2 x 20 THREAD 41.1 38.1 (1.62) DIA. (1.50) DIA. 11⁄2 x 20 THREAD Fig. 2-1.
Installing the Infrared Thermometer 2 2.3 OS550 Display Electronics Dimensions 131.3 (5.17) TYP. Ø 4.37 (0.172) MOUNTING HOLE (4 PLACES) 50.0 (1.97) TYP. Fig. 2-2.
2 Installing the Infrared Thermometer 2.4 OS550-BB Series Display Mounting Dimensions Ø 5.16 (0.203) THRU TYP. (4 PLACES) WILL FIT UP TO A #10 SCREW OR BOLT 26.4 (1.04) 57.4 (2.26) 118.4 (4.66) 5.1 (.20) TYP. 31.0 (1.22) 26.4 (1.04) 57.4 (2.26) 91.4 (3.60) Fig. 2-3.
Installing the Infrared Thermometer 2 2.5 Mounting Bracket Dimensions (OS550-MB) 50.8 (2.00) 6.4 (.25) REF 88.9 (3.50) 38.61 Ø (1.520) 57.2 (2.25) 88.9 (3.50) 3.18 R (.125) TYP. 2 PLACES 22.23 (.875) 12.7 (.50) 25.4 (1.00) 28.58 (1.125) 25.4 (1.00) 3.18 R (.125) Fig. 2-4 2.6 Mounting Nut Dimensions (OS550-MN) CL .020 x 45 CHAMFER BOTH SIDES .020 x 45 CHAMFER BOTH SIDES o 2.00 .250 1 1/2-20-2B THRU MED. DIAMOND NURL Fig.
2 Installing the Infrared Thermometer 2.7 Mounting Flange Dimensions (OS550-MF) Ø 89 (3.5) 3 HOLES ON Ø 71.1 (2.80) BOLT CIRCLE TYP. 3 PLACES 120 6.35 (.250) THRU TYP. (3 PLACES) 6.35 (.250) 38 (1.5) - 20 THREAD Fig. 2-6 2.8 Air Purge Collar Dimensions (OS550-AP) 51 (2.0) DIA. 1/8 N.P.T. TAP THRU 21.59 (.850) 38 (1.5) – 20 THREAD Fig.
3 Using the Infrared Thermometer 3.1 Using the Infrared Thermometer 3.1.1 Water Cool Jacket Accessory When using the OS550 sensor head in an ambient temperature environment above 50°C (122°F), the OS550-WC Water Cooling Jacket option must be used to maintain the accuracy and response time of the unit. Two 1⁄8" N.P.T. compression fittings are provided for connection to copper water lines. A constant flow of approx. 0.
3 Using the Infrared Thermometer/Transmitter 3.2 How To Power the Thermometer 3.2.1 OS550 Series Cable Connection The OS550 Series thermometer comes with a built-in 4.5 m (15') power/output cable. Power and output connections are made to the cable via stripped wire ends located at one end of the cable. The power/output cable can be shortened or extended in the field if needed. See table 3-1 below for wire Connection.
Using the Infrared Thermometer/Transmitter 3 3.3 Operating The Thermometer 1. After installing the thermometer (see section 2.1) and connecting power (see section 3.2), your unit will be ready for use. Your unit has been shipped to you with the SLEEP/ON switch in the “SLEEP” position. Place the switch in the “ON” position to turn your unit on and begin to make measurements. OS550 SERIES KEYPAD PARTIAL VIEW Display Mode Display Icons ON SLEEP Scrolls Through Display Modes FUNC SLEEP/ON SWITCH 2.
3 Using the Infrared Thermometer/Transmitter 3.3.1 Field of View Charts SPOT DIA.* (IN) DISTANCE: SENSOR TO OBJECT (FT) 0 3 2 5 .35" @ 24" .9 .8 10 4.0 16 7.0 1.6 D:S = 68:1 22 21 42 SPOT DIA.* (MM) 101 *SPOT DIAMETER MEASURED AT 90% ENERGY 0 .61 1.0 1.5 3.0 DISTANCE: SENSOR TO OBJECT (M) Figure 3-3. OS550 Series (-1 FOV) Figure 3-4. OS550 Series (-2 FOV) 3-4 181 9mm @ 610 mm 5.
Using the Infrared Thermometer/Transmitter DISTANCE: SENSOR TO OBJECT (FT) 0** SPOT DIA.* (IN) 3 20" 2' 1' 3' 4' 5' 7' 6' 4.2" 8' 4.8" 3.6" 1.0" @ 0" to 20" 3.0" 2.4" 1.0" 1.0" 1.8" 1.2" D:S = 20:1 2.5 SPOT DIA.* (CM) 4.0 6.0 8.0 2.5cm @ 51cm 10.0 *SPOT DIAMETER MEASURED AT 90% ENERGY 40 80 120 12.2 160 200 244 DISTANCE: SENSOR TO OBJECT (CM) Figure 3-5. OS550 Series (-3 FOV) Figure 3-6.
3 Using the Infrared Thermometer/Transmitter SPOT DIA.* (IN) DISTANCE: SENSOR TO OBJECT (FT) 3 0 5 10 16 2.9 1.9 0.9" @ 0 1.2 1.0 0.9 D:S = 60:1 SPOT DIA.* (MM) 26 31 22mm @ 0 48 *SPOT DIAMETER MEASURED AT 90% ENERGY 0 1.0 75 1.5 3.0 5.0 DISTANCE: SENSOR TO OBJECT (M) Fig. 3-7. OS550 Series- (-5FOV) SPOT DIA.* (IN) DISTANCE: SENSOR LENS TO OBJECT (in.) 0 3" 6" 9" 15" 12" 1.17" 0.9" .45" .39" .15" .78" SPOT DIA.* (MM) D:S = 40:1 22 11.5 3.9 9.9 19.
3 Using the Infrared Thermometer/Transmitter 3 3.4 Measurement Techniques You can use the IR Thermometer to collect temperature data in any one of five different ways: • Spot Measurement — Measures the temperature of discrete objects such as motor bearings, engine exhaust manifolds, etc.: 1. Aim the sensor head at the desired target. 2. 3. If necessary, adjust the emissivity using the keys. Read the temperature.
3 Using the Infrared Thermometer/Transmitter • Moving Surface Scan - Measures the Temperature of Points on a Moving Surface: 1. Mount the sensor head and aim at your target. 2. If necessary, adjust the emissivity. The thermometer is now set up for measuring the temperature of a moving surface. 3. To record the temperature profile of the moving surface, connect the IR thermometer to a strip chart recorder or Data logger.
Using the Infrared Thermometer 3 3.4.1 Real Time Mode (Active Operation) Definition: Real Time Mode is the active operational mode of the thermometer. In this mode, the thermometer constantly measures and displays temperature. Power Applied, Sleep/On Switch in the On Position On Sleep Mode Display Turns Off Immediately Sleep/On Switch in the Sleep Position (Table 3-1) Real Time Mode (Active) Press Display Turns Off in Approx. 10 Seconds (No keys pressed) Recall Mode (Passive) (Table 3-2) Fig.
OS551 3-10 OS522 OS520 & OS520E OS552 OS553, OS554 OS521 Display Mode: to... or to...
Using the Infrared Thermometer/Transmitter MODE DISPLAY LCK LCK DISPLAY ☞ LCK LCK °F ☞ LCK LCK °F PRN °F ☞ ☞ Model OS552 (Model OS521) LCK °F LCK °F ☞ * °F ATC ☞ * °F LAL ☞ * MODE LCK °F * 3 ☞ LCK °F Model OS553, OS554 (Model OS522) ☞ LCK HAL °F ☞ Note: This flow-chart can also be found on the back of the label inside the main display housing clear plastic lid.
3 Using the Infrared Thermometer/Transmitter 3.5.1 Adjusting Emissivity °F Refer to Appendices B and C for information on emissivity before making your adjustment. 1. When the thermometer is powered up, the default emissivity setting will be set to 0.95. 2. If necessary, press the key to increment the target emissivity or press the key to decrement the target emissivity. NOTE The unit maintains the emissivity value even when the power is removed.
Using the Infrared Thermometer/Transmitter 3 3.5.2 Calculating Temperature Values The thermometer calculates the MAX, MIN, dIF, and AVG temperatures based on the current temperature. °F °F °F is the maximum temperature since the temperature measurement session starts (pulling the trigger). °F °F is the minimum temperature since the temperature measurement session starts. is the difference between the MAX and MIN temperatures.
3 Using the Infrared Thermometer/Transmitter 3.5.5 Using the Alarm Functions The thermometer provides audible and visible alarm indications. • To set the high alarm value: HAL °F 1. Press the key until the High Alarm Display Mode (HAL) appears. 2. Press the the 3. key to increment the high alarm value. Press key to decrement the high alarm value. Press the key to enable the high alarm function. The icon appears.
Using the Infrared Thermometer/Transmitter 3 • To set the low alarm value (OS552, OS553, OS554): LAL °F 1. Press and hold the key until the Low Alarm Display Mode (LAL) appears. 2. Press the the 3. key to increment the low alarm value. Press key to decrement the low alarm value. Press the key to enable the low alarm function. The icon appears. If the temperature drops below the low alarm setpoint, you will hear a beep and the icon on the display flashes. 4.
3 Using the Infrared Thermometer/Transmitter 3.5.6 Using Ambient Target Temperature Compensation (OS552, OS553, OS554) AT C °F Use the Ambient Target Temperature Compensation (AMB) Display Mode when high accuracy readings under both of these conditions are required: • The target has a low emissivity. • The ambient temperature around the target is much higher than the ambient temperature around the infrared thermometer. To set and activate the Ambient Target Temperature Compensation Mode: 1.
Using the Infrared Thermometer/Transmitter AT C 8. °F Press and hold the 3 key until the Emissivity Display Mode (E) appears. 9. Change the emissivity to the proper value for the target being measured (refer to Section 3.5.1). 10. Aim at the target. The target temperature and emissivity are displayed on the LCD. NOTE To disable the Ambient Target Temperature Compensation at a later time, you must press the key to get into the Ambient Target Temperature Display Mode.
3 Using the Infrared Thermometer/Transmitter PRN °F NOTE Bottom hole is the RS-232 jack Serial Printer RS-232 Digital Cable 25-Pin 'D' Connector 6-Pin Phone Jack To the Printer To the Pyrometer Figure 3-10. Serial Printer Hookup 3. With power applied to the unit, press and hold the key until the Print Data Display Mode (PRN) appears. 4. Press the key to increment the printing interval. Press the key to decrement the printing interval.
Using the Infrared Thermometer/Transmitter PRN °F 6. After all data is taken, press and hold the 3 key until the Emissivity Display Mode (E) appears. 3.5.8 Sending Temperature Data to a Personal Computer (OS552, OS553, OS554) The thermometer can transmit temperature data to a Personal Computer via the RS-232 phone jack and the RS-232 cable. 1. Turn on the Computer. 2. Connect the RS-232 cable between the thermometer and the serial port (RS-232 of the Personal Computer as shown below in Figure 3-11).
3 Using the Infrared Thermometer/Transmitter Operating System: Processor : Ram: Monitor: Video Card: CommPort: CD-ROM: Hard Drive: Win95, Win98, Win NT 4.0, Windows 2000 Pentium Class (Any speed) 32 Mega-Bytes VGA, Or Higher Resolution Supports VGA, 256 Color, 800 x 600 Resolution (Minimum) 4800 Baud, 8 Databits, 1 Stop, No Parity. Any Speed 10 Mega-Bytes Available Space (For Installation Only) How to Install IR_TEMPSOFT PRN °F Please follow this installation procedure to install IR_TEMPSOFT: 1.
Using the Infrared Thermometer/Transmitter PRN °F 3 program please contact technical support at Omega Engineering Inc. Connecting the IR-System to the PC Make certain that your Infrared Thermometer is powered down before you attempt to make any connections to the personal computer. Making connections between powered devices and a powered PC can cause damage to communications ports, or other electronic circuitry in your device or computer. 1.
3 Using the Infrared Thermometer/Transmitter waiting for the thermometer to transmit data through your RS-232 port. 4. Begin transmitting data from the thermometer by pressing and holding the key on the thermometer until the Print Data Display Mode (PRN) appears. 5. Press the “UP” key to increment the printing interval. Press the “Down” key to decrement the printing interval. The printing interval (from 1 to 1999) is the time between data points. The default value is 2 seconds. 6.
Using the Infrared Thermometer/Transmitter 3 3.5.9 Storing the Temperature Data on Command (OS553, OS554) °F The thermometer can store up to 100 temperature data points on command. Each set of temperature data is broken down into the temperature value, emissivity, and high alarm setpoint for that temperature. This data is stored in non-volatile memory, so power loss will not affect this data. To store temperature data: 1. With power applied to the unit, place the SLEEP/ON switch to the ON position. 2.
3 Using the Infrared Thermometer/Transmitter 3.5.10 Erasing the Temperature Data from Memory The user can erase all 100 temperature data points in memory at any time by using the following procedure: 1. With power applied to the unit, place the SLEEP/ON switch to the ON position. 2. Press the key. The icon will appear. 3. Place the SLEEP/ON switch to the SLEEP position. 4. Press the key and then the key in rapid sequence. NOTE If the icon disappeared, repeat Steps 1 and 2.
Using the Infrared Thermometer/Transmitter 3 3.6 Recall Mode (Passive Operation) Definition: Recall Mode is the passive operational mode of the thermometer. In this mode, you may review the most recently stored temperature data and parameters. On Sleep Mode Power Applied, Sleep/On Switch in the Sleep Position Display Turns Off Immediately Sleep/On Switch in the Sleep Position (Table 3-1) Press Display Turns Off in Approx.
OS520OS551 & OS520E OS553, OS522 OS554 3-26 OS552 OS521 Last/stored temperature Memory location Last temperature Go to Go to Go to or Go to or Last temperature High alarm temperature Last temperature Ambient target temperature Go to Last temperature Average temperature Go to Go to Last temperature Differential temperature Last temperature Low alarm temperature Go to Go to Last temperature Maximum temperature Last temperature Minimum temperature Go to Press Last temperature Emissivity
Using the Infrared Thermometer/Transmitter 3 3.6.1 Reviewing the Last Parameters The thermometer stores the last temperature measured in °F the real time mode (refer to Table 3-1). This temperature can be recalled by pressing the key. 1. With power applied to the unit, place the SLEEP/ON switch to the SLEEP position. 2. Press the key to review the most recently stored temperature data and parameters.
3 Using the Infrared Thermometer/Transmitter 3. 4. 5. 6. 7. 3 To download stored temperature data points from the thermometer, first make certain that it is not in printing mode. Make sure that the IR_TEMPSOFT is installed properly as explained in previous section. On the main menu bar, click on “Command-> Download Stored Data”. The “Stored Data” window will appear. The “Stored Data Points” window will appear. Click on the “START RECEIVING” button to bring the program into receive mode.
Using the Infrared Thermometer/Transmitter 3 3.6.3 Reviewing Previously Stored Temperature Data (OS553, OS554) °F You can review all 100 stored temperature values on the thermometer display using the following procedure: 1. With power applied to the unit, place the SLEEP/ON switch to the SLEEP position 2. Press and hold the key until you see the Memory Display Mode (MEM) appear. 3. Press the key to increment the memory location or press the key to decrement the memory location.
3 Using the Infrared Thermometer/Transmitter Notes 3-30
Laser Sight Accessory 4 4.1 Warnings and Cautions CAUTION When using the laser sight accessory OS550-LS, you may receive harmful laser radiation exposure if you do not adhere to the warnings listed below: • USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HERE MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. • DO NOT LOOK AT THE LASER BEAM COMING OUT OF THE LENS OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS — EYE DAMAGE CAN RESULT.
4 Laser Sight Accessory 4.2 Description A laser sighting accessory is available to aid in the sensor head installation process. When installing a line of sight Infrared transducer with a small spot size and long target distance, it is sometimes difficult to locate the center of the focused spot and the material to be measured. To solve this problem, we offer a laser sighting accessory OS550-LS that will install onto the front of the OS550 series sensor head.
Laser Sight Accessory 4 4.3 Operating the Laser Sight 4.3.1 Installing the Laser Sight onto the Thermometer The laser sight accessory (OS550-LS) screws onto the front of the sensor head. Do not over tighten the laser sight accessory onto the sensor head. This accessory is only used during sensor head installation and then removed. 4.3.2 Powering the Laser Sight Accessory The laser sight head is powered by a small compact battery pack supply provided with this accessory.
4 Laser Sight Accessory Notes 4-4
Maintenance 5 5.1 Cleaning the Sensor Head Lens Although all lenses are quite durable, take care to prevent scratching when cleaning them. To clean the lens: 1. Blow off loose particles, using clean air. 2. Gently brush off remaining particles, using a camel hair brush. Alternatively, clean any remaining contaminants with a damp, soft, clean cloth. Be careful not to rub too hard. CAUTION Do not use any ammonia or cleaners with ammonia on the lens, as damage may result.
5 Maintenance Notes 5-2
Troubleshooting Guide 6 THERMOMETER Problem Solution The thermometer does a. not turn on (No Display) The thermometer is showing an incorrect temperature The thermometer is “locked up” (the Check for proper power connections, see Section 3.2 b. Contact our Customer Service Department, unit requires service. a. Make sure you have entered the correct emissivity setting. b. Make sure you are not trying to measure a temperature above the maximum temperature range of your model. a.
6 Troubleshooting Guide Problem The display is either erratic or stays at one reading Solution a. Clean the thermometer lens. Refer to Section 5.1. b. Activate the Diagnostic Program in the thermometer as follows: c. Press the d. Hold down the the key. key and press key until “VER X.X” is displayed. You can expect to see and hear the following: • You will see the version number “VER X.X” of the software for about 1 second. • You will hear a beep, “TST” is displayed, and °F flashes.
Troubleshooting Guide Problem 6 Solution The temperature reading is erratic. The sensor head has just been moved from one extreme temperature to room temperature [0°C or 50°C (32°F or 122°F)] or vice versa. The thermometer has to stabilize before taking temperature measurements. It takes up to 40 minutes for the thermometer to stabilize. The temperature reading is erratic. The sensor head has just been moved from room temperature (ambient temperature) to a temperature 10°C colder or warmer.
6 Troubleshooting Guide Notes 6-4
Specifications 7 (Specifications are for all models except where noted) THERMOMETER Measuring Temperature Range: OS551: OS552: OS553: OS554: –18°C to 400°C (0°F to 750°F) –18°C to 538°C (0°F to 1000°F) –18°C to 871°C (0°F to 1600°F) –18°C to 1371°C (0°F to 2500°F) Accuracy @ 24°C or 75°F Ambient Temperature and at emissivity of 0.
7 Specifications Emissivity: 0.10 to 1.00 in 0.
Specifications 7 1 mV/degree C or F Analog Output: Accuracy: ± 2 mV referenced to the temperature display 0-5 Vdc Analog Output: Accuracy: ± 0.25% of full scale (Referenced to display reading) Scaling: Fixed (scaled to match full temperature range of model selected) Minimum Load: 600 ohms 4-20 mA Analog Output: Accuracy: ± 0.
7 7 Specifications LASER SIGHT ACCESSORY (OS550-LS) Wavelength (Color): Operating Distance: Laser Dot Max.
Glossary of Key Strokes Key(s) 8 Key(s) Functions • Selects one of the following Display Modes: E , MAX, MIN, dIF, AVG, HAL, LAL, AMB, PRN, or MEM. • • • Enables/disables High and Low Alarms. Enables/disables Target Ambient Temperature Compensation. Enables/disables sending data to the personal computer or serial printer. Stores temperature data on command. • Displays previously stored data. • • Increments the data or value displayed.
8 1 Glossary of Key Strokes Notes 8-2
Appendix: How Infrared Thermometry Works A Thermal Radiation Heat is transferred from all objects via radiation in the form of electromagnetic waves or by conduction or convection. All objects having a temperature greater than absolute zero (-273°C, -459°F, 0 K) radiate energy. The thermal energy radiated by an object increases as the object gets hotter. Measurement of this thermal energy allows an infrared thermometer to calculate the object’s temperature if the emissivity (blackness) is known.
A Appendix: How Infrared Thermometry Works Blackbody When thermal radiation falls on an object, part of the energy is transmitted through the object, part is reflected and part is absorbed. A blackbody is defined as an ideal object that absorbs all the radiation incident upon it. The best example of a real object that acts like a blackbody is a small hole drilled deep into a large opaque cavity.
Appendix: How Infrared Thermometry Works A Wien’s Displacement Law describes the exact mathematical relationship between the temperature of a blackbody and the wavelength of the maximum intensity radiation. where λm = wavelength measured in microns T = temperature in Kelvin Calculating Temperature The net thermal power radiated by an object has been shown to depend on its emissivity, its temperature and that of the ambient temperature around the object.
A Appendix: How Infrared Thermometry Works Optics Field of View Accurate measurement of temperature via infrared means depends strongly on the size of the object and the distance between the thermometer and the object. All optical devices (e.g. cameras, microscopes, infrared thermometers) have an angle of vision, known as a field of view or FOV, within which they see all objects. In particular, the thermometer will measure a fixed proportion of the energy radiated by all objects within its FOV.
Appendix: Emissivity Values B Table B-1 provides guidelines for estimating the emissivity of various common materials. Actual emissivity, especially of metals, can vary greatly depending upon surface finish, oxidation, or the presence of contaminants. Also, emissivity or infrared radiation for some materials varies with wavelength and temperature. To determine the exact emissivities for most applications, follow the procedures in Appendix C. Table B-1.
B Appendix: Emissivity Values Material Emissivity (ε) Asbestos Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.96 Asphalt, tar, pitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.95 – 1.00 Brick – red and rough . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.93 Brick – fireclay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.75 NONMETALS Carbon – filament . . . .
Appendix: Determining an Unknown Emissivity C In Appendix A, we showed how emissivity is an important parameter in calculating the temperature of an object via infrared means. In this section we discuss how to determine a specific emissivity value. If you know the material of the object, use Table B-1 in Appendix B to look up its approximate emissivity. Most organic materials such as plastics, cloth, or wood have an emissivity of about 0.95. For this reason, we use 0.
C Appendix: Determining an Unknown Emissivity Method 3 1. Use this method to measure objects at temperatures below 500°F (260°C). 2. Place a large piece of masking tape on the object (or at least a sample of the object material). Allow time for the masking tape to reach the object temperature. 3. Set the emissivity of the thermometer to 0.95. Use the thermometer to measure and record the temperature of the masking tape - Area “A” in Figure C-1.
Appendix: Determining an Unknown Emissivity C Method 4 1. Paint a sample of the object material with flat black lacquer paint. 2. Set the emissivity to 0.97 and measure and record the temperature of the painted portion of the sample material - Area “A” in Figure C-1. Make sure that the painted area of object material fills the FOV of the thermometer. 3. Aim the thermometer at another spot on the target - Area “B” in Figure C-1. 4.
ADDENDUM ADDENDUM TO OS550/OS550-BB MANUAL IMPORTANT CONSIDERATIONS BEFORE INSTALLATION Follow all safety precautions and operating instructions outlined in this addendum and your OS550 Series manual. - - - - - - - - - - - - - - - - - - - - - - - - - SYMBOL KEY - - - - - - - - - - - - - - - - - - - - - - - CAUTION: Refer to accompanying documents. Ref. ISO 3864 NO. B.3.1 DIRECT CURRENT ONLY: REF. IEC 417, NO.
ADDENDUM TO OS550/OS550-BB MANUAL A - - - - - - - - - - - - - - - TYPICAL INSTALLATION SCHEMATIC - - - - - - - - - - - - - - - DC POWER SUPPLY ( INTEGRAL IMPEDENCE PROTECTED SENSOR HEAD OS550 1 2 3 4 5 +PWR (RED) -PWR (BLACK) +O/P (WHITE) -O/P (GREEN) SHIELD (BARE) [DRAIN WIRE] ) GND ( ) EARTH GROUND VOLTAGE O/P: 0-5 Vdc CURRENT O/P: 4-20 mA DIGITAL VOLTMETER/ AMMETER D-2
I Index A Air Purge Collar ....................... 2-6 Alarms ........................... 3-14, 3-15 Ambient Target Temperature Compensation ...................... 3-16 B Backlighting Icon ...................... 1-3 Blackbody ........................ A-2, C-3 C Computer: Parameters: Speed, Data, Parity, Stop Bit ............................ 3-17 Personal, Hookup .............. 3-19 Program (IRP.EXE) ........... 3-20 Communications Program (IRP.EXE) ............... 3-20 D Diagnostic Program ............
Index LOCK (Lock) ........................ 1-3 ▲ & ❍-● ................................ 1-3 Key Strokes ............................... 8-1 L Label Layout: Danger & Certification ............ .....................Inside Back Cover Laser Sight Installing onto Thermometer ...................... 4-3 Line of Sight ......................... 4-2 Power ... ................................ 4-3 Power Indicator LED ........... 4-2 Warnings and Cautions ...... 4-1 LCD, Backlighting .................
WARRANTY/DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 25 months from date of purchase on the base unit and 13 months from date of purchase on Laser Sight Module. OMEGA WARRANTY adds an additional one (1) month grace period to the normal product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product.
Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course! Shop online at omega.
