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Omega OS643-LS - page 1
OS643E -LS/OS643E Infrared Thermometer With Laser Sighting OMEGA ...
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Omega OS643-LS - page 2
OMEGAnet SM On-Line Service http://www.omega.com Internet e-mail info@omega.com For immediate technical or application assistance: USA and Canada: Mexico and Latin America: Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA SM Tel: (95) 800-TC-OMEGA SM Customer Service: 1-800-622-2378 / 1-800-622-BEST SM FAX: (95) 203-359-7807 Engineering Service: 1-80 ...
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Omega OS643-LS - page 3
1 INTRODUCTION This instrument is a portable easy to use 3 digit, compact-sized digital infrared thermometer with laser sighting designed for simple one hand operation. Meter comes with Backlit LCD display, Auto-hold function and auto power down (20 seconds approx.) after releasing MEAS button to extend battery life. SAFETY INFORMATION It is recomm ...
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Omega OS643-LS - page 4
2 CAUTION • Do not use the unit near any device which generates strong electromagnetic radiation or near a static electrical charge, as these may cause errors. • Do not use the unit where it may be exposed to corrosive or explosive gases. The unit may be damaged, or explosion may occur. • Do not keep or use this unit in an environment where i ...
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Omega OS643-LS - page 5
3 SPECIFICATIONS GENERAL Display: 3½ digit liquid crystal display (LCD) with maximum reading of 1999. Low battery indication: the " " is displayed when the battery voltage drops below the operating level. Measurement rate: 1 times per second, nominal. Operating Environment: 32°F to 122°F (0°C to 50°C) at < 70% relative humidity. S ...
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Omega OS643-LS - page 6
4 Laser Specifications Laser safety classification of Class II Wave Lenght: Red (650nm). Operating Distance: 2 to 50 feet. Power out: <1mW , class II laser product. ELECTRICAL Temperature Range: -4°F to 1022°F / -20°C to 550°C. Display Resolution: 1°F / 1°C. Accuracy: ±2% of reading or ±6°F/3°C, whichever is greater @ 64.4 to 82.4°F ( ...
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Omega OS643-LS - page 7
5 Spot size increases with distance from the probe tip as shown (Spot Diameter measured at 90 % Energy) CAUTION: Use of controls or Adjustments or performance of Procedures other than those Specified herein may result in Hazardous radiation exposure. Aperture Label (on front): Danger, Certification & ID Label: (Located on back of unit) ...
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Omega OS643-LS - page 8
6 OPERATING INSTRUCTIONS Auto Power-down function If unused for about 20 seconds, the unit will power-down automatically. Press MEAS button resumes power-on mode. SET MODE disables auto power-down feature. Turning the Power on When the power is down, press MEAS button to turn on the meter. The values and settings on the LCD return to what they were ...
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Omega OS643-LS - page 9
7 Laser Sighting Press " " button to on the " " annunciator. If " " annunciator is on, press MEAS button and the laser beam will turn on and " " annunciator will blink. Releasing MEAS button turns off the laser beam. MEAS (MEASURE) Button Press MEAS button to turn on the meter for measuring temperature. Relea ...
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Omega OS643-LS - page 10
8 Continuous Measurement 1. In the power down mode, holding the MODE key down and then pressing the MEAS key will put the unit into the continuous measurement mode. 2. When the MEAS key is pressed again to stop measuring temperature and automatically hold the display reading, the meter power down automatically after 20 seconds. NOTE: During the con ...
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Omega OS643-LS - page 11
9 MODE SELECTION AND OPERATION Press MODE button switches the mode around the cycle e ® ALM Hi ® ALM Lo ® MAX ® MIN ® HOLD. HOLD :Releasing MEAS button stops measuring temperature, the HOLD indication appears, and the measured temperature is held. e :The thermal emissivity of the object set using the ▲ and ▼ keys. ALM Hi :The upper limit a ...
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Omega OS643-LS - page 12
10 NOTE: If, from the power down condition, the MEAS key is held down for more than four second, MAX/MIN record starts. SET MODE & Numeric input key "SET" annunciator appears when a numerical value can be set (during setting of e , ALM Hi and ALM Lo). ▲ key :The numerical value is increased. ▼ key :The numerical value is reduced. ...
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Omega OS643-LS - page 13
11 How to specify the thermal emissivity ( e e e e e ) 1. Stick black body tape on the object whose temperature is to be measured, or spray it with black body spray. 2. Set the thermal emissivity value ( e ) on the LCD to 0.95. 3. Press the MEAS key, so as to measure the temperature (T real ) of the part on which body tape (or black body spray) is ...
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Omega OS643-LS - page 14
12 OPERATION 1. When the power is down, pressing MEAS button turns on the power. 2. Use " " button to select turn on or turn off the display Back-Light. 3. Use " " button to select turn on or turn off the Laser beam. 4. Press the MODE button, if necessary to set the thermal emissivity value ( e ). 5. Point the lens at the object ...
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Omega OS643-LS - page 15
13 MEASUREMENT CONSIDERATIONS 1. Theory of Measurement Every object emits infrared energy in accordance with its temperature. By measuring the amount of this radiant energy, it is possible to determine the temperature of the emitting object. 2. About Infrared Infrared radiation is a form of light (electromagnetic radiation), and has the property th ...
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Omega OS643-LS - page 16
14 4. Emissivity All objects emit invisible infrared energy. The amount of energy emitted is proportional to the object's temperature and its ability to emit IR energy. This ability, called emissivity, is based upon the material that the object is made of and its surface finish. Emissivity values range from 0.10 for a very reflective object to ...
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Omega OS643-LS - page 17
15 MAINTENANCE Battery Replacement Power is supplied by four 1.5V (AAA size) batteries. The " " appears on the LCD display when replacement is needed. To replace the batteries, remove the screw from the back of the meter and lift off the battery cover case. Remove the batteries from battery contacts. Cleaning Periodically wipe the case wi ...
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Omega OS643-LS - page 18
16 Substance Thermal Substance Thermal emissivity emissivity Asphalt 0.90 to 0.98 Cloth (black) 0.98 Concrete 0.94 Human skin 0.98 Cement 0.96 Lather 0.75 to 0.80 Sand 0.90 Charcoal (powder) 0.96 Earth 0.92 to 0.96 Lacquer 0.80 to 0.95 W ater 0.92 to 0.96 Lacquer (matt) 0.97 Ic e 0.96 to 0.98 Rubber (black) 0.94 Snow 0.83 Plastic 0.85 to 0.95 Glass ...
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Omega OS643-LS - page 19
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Omega OS643-LS - page 20
WARRANTY OMEGA warrants this unit to be free of defects in materials and workmanship and to give satisf actory ser vice for a period of 13 months from date of purchase. OMEGA W arranty adds an additional one (1) month grace period to the nor mal one (1) year product warranty to cov er handling and shipping time . This ensures that OMEGA's cust ...
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Omega OS643-LS - page 21
It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply . OMEGA is constantly pursuing certification of its products to the European New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification. The information contained in this document is believ ed to be correct but OM ...
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Omega OS643-LS - page 22
Where Do I Find Everything I Need for Process Measurement and Control? OMEGA...Of Course! HEATERS þ Heating Cable þ Cartridge & Strip Heaters þ Immersion & Band Heaters þ Flexible Heaters þ Laboratory Heaters PRESSURE/STRAIN AND FORCE þ Transducers & Strain Gauges þ Load Cells & Pressure Gauges þ Displacement Transducers þ ...
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