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OS137 Series Miniature Non-Contact Infrared Temperature Sensor/Transmitter Table of Contents Section Page Caution & Safety Information ...................................................................... iii Safety Warnings and IEC Symbols .............................................................. iii Section 1 Introduction .................................................................................... 1 Section 2 Installation ...................................................................
OS137 Series Miniature Non-Contact Infrared Temperature Sensor/Transmitter Table of Figures ii Figure Description Page 2-1 General Wiring Diagram ................................................................ 2 2-2 Alarm Output Wiring Diagram .................................................... 2 3-1 Optical Field of View ...................................................................... 3 3-2 Location of Emissivity & Alarm Adjust and Alarm Switch .........
OS137 Series Miniature Non-Contact Infrared Temperature Sensor/Transmitter CAUTION & SAFETY INFORMATION If the equipment is used in a manner not specified in this manual, the protection provided by the equipment may be impaired. The Installation category is one (1). There is no user replaceable fuse in this product. The output terminals of this product are for use with equipment (digital meters, chart recorders, etc.) which have no accessible live parts.
1 Introduction SECTION 1 - INTRODUCTION The OS137 Series is a precision, miniature infrared transmitter. It measures temperature via non-contact, and provides an analog output proportional to the measured temperature. The OS137 Series is offered in three temperature ranges: 0 to 100ºC (32 to 212ºF), -18 to 260ºC (0 to 500ºF) and -18 to 538ºC (0 to 1000ºF). The analog output is offered as 4 to 20 mA, 0 to 5 Vdc, 0 to 10 Vdc, 10 mV/degree C or F, or K type thermocouple.
Installation 2 - ** means: -MA : 4 to 20 mA current output -V1 : 0 to 5 Vdc output -V2 : 0 to 10 Vdc output -K : K type thermocouple output -MVC : 10 mV/ºC output -MVF : 10 mV/ºF output The following table lists the optional accessories: Accessories Description Mounting Bracket Water/Air Cooling Jacket with Built-in Air Purge Collar Air Purge Collar Laser Sighting Regulated 24 VDC (400 mA) Power Supply NIST Traceable Calibration Model No. OS137-MB OS137-WC OS137-AP OS137-LS PSR-24S CAL-3-IR 2.
3 Operation SECTION 3 – OPERATION 3.1 – Measuring Temperature Before starting to measure temperature, make sure the following check list is met: The power and output connections are made (Fig 2-1). The target is larger than the optical field of view of the transmitter (Fig 3-1). Use the Laser Sighting accessory (optional), to align the transmitter to the center of the target area. Remove the End Cap to get to the Emissivity Single Turn Pot (Fig. 3-2).
Operation 3 3.2 – Ambient Temperature The transmitter can operate in an ambient temperature of 0 to 70°C (32 to 158°F) without any water cool jacket. It can operate from 0 to 200°C (32 to 392°F) with the water cool jacket accessory, OS137-WC (Fig 3-6 & 3-7). It can operate up to 110°C (230°F) with air cooling. There is a warm up period of 1 to 2 minutes after power up. After the warm up period, temperature measurement can be made.
3 Operation 1-20 UNEF 14.3 (0.562) 41.3 (1.625) BARB ADAPTER 3/16" ID 1/4-28 UNF THREAD DIMENSIONS mm (in) Figure 3-4. Air Purge Collar, OS137-AP 1-20 UNEF 25.4 (1.0) LIGHT DIAMOND KNURL 2.5 (0.1) WIDE 42.4 (1.67) 127 (5.0) 1.83 m (6 ft) DIMENSIONS mm (in) Figure 3-5. Stainless Steel Housing 128.6 (5.062) 1-20 UNEF 9.5 (3/8) 7.9 (0.312) 41.2 (1.625) INLET OUTLET BARB ADAPTER 3/16" ID 1/4-28 UNF THREAD DIMENSIONS mm (in) Figure 3-6.
Operation 3.4 3 Alarm Setting The unit provides 0-100% alarm setpoint adjustment. Here is an example of an alarm setting: • An OS137-3-MA (4/20 mA output), the alarm is to be set at 204°C (400°F) temperature. • Connect the alarm output as shown in Fig. 2-2. • Remove the End Cap to get to the Alarm Switch and the Alarm Adjust (Fig. 3-2). • Set the Slide Switch on the main board to the Alarm position (2). • Measure the analog output, and adjust the Alarm Potentiometer until the output reads 10.
4 Laser Sight Accessory SECTION 4 - LASER SIGHT ACCESSORY 4.1 – Warnings and Caution CAUTION: 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 IN THIS GUIDE MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. • DO NOT LOOK AT THE LASER BEAM COMING OUT OF THE LENS OR VIEW IT DIRECTLY WITH OPTICAL INSTRUMENTS – EYE DAMAGE CAN RESULT.
Laser Sight Accessory 4 LASER WARNING LABEL 38.1 (1.5) DC POWER JACK OS137 22.2 (0.875) ON/OFF SWITCH LED LASER POWER LASER INDICATOR BEAM 50.8 (2.0) POWER CABLE BATTERY PACK POWER SUPPLY Dimensions mm (in) Figure 4-1. Laser Sighting Accessory, OS137-LS ® LASER RADIATION DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS. CLASS 2 LASER PRODUCT. LASER RADIATION - DO NOT STARE INTO CAUTION AVOID EXPOSURE. LASER IS EMITTED BEAM RADIATION FROM THIS APERTURE.
5 Specifications SECTION 5 – SPECIFICATIONS 5.1 - General Temperature Range: OS137-1 OS137-2 OS137-3 0 to 100ºC (32 to 212ºF) -18 to 260ºC (0 to 500ºF) -18 to 538°C (0 to 1000°F) Accuracy: @22ºC (72ºF) ambient Emissivity of 0.95 or greater 1.5% of Rdg or 2.0ºC (3.5ºF) whichever is greater Repeatability: 1% of Rdg or 1.0ºC (2.0ºF) whichever is greater Field of View: 10 to 1 Spectral Response: 8 to 14 microns Response Time: 150 msec, 0 to 63% of final value Emissivity: 0.5 to 1.
Specifications 5 5.2 - Laser Sight Accessory Laser Wavelength (Color): 630 - 670 nm (red) Operating Distance: Up to 9.1 m (30 ft) Max. Laser Power Output: Less than 1 mW @ 22ºC (72°F) ambient European Classification: Class 2, EN60825-1/11.2001 FDA Classification: Class II Laser Product. Complies with 21 CFR 1040.
6 Emissivity Table METALS Material 11 Emissivity (ε) Aluminum – pure highly polished plate . . . . . . . . . . . . . . . . . . . . . . . . 0.04 to 0.06 Aluminum – heavily oxidized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.20 to 0.31 Aluminum – commercial sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.09 Brass – dull plate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.22 Brass – highly polished, 73.
Emissivity Table Material 6 Emissivity (ε) Asbestos Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.96 Asphalt, tar, pitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.95 to 1.00 Brick – red and rough . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.93 Brick – fireclay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.
6 OS137 Series Miniature Non-Contact Infrared Temperature Sensor/Transmitter NOTES: 13
WARRANTY/DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product. If the unit malfunctions, it must be returned to the factory for evaluation.
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