Omega OS643W manual

OMEGA OS643W Infrared Thermometer[...]

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[...]

1 INTRODUCTION This instrument is a portable easy use 3½ digit, compact-sized digital thermometer designed to use infrared or K-type thermocouple as input. Meter with Backlit LCD, Auto-hold function and auto power off (15 seconds approx.) feature after releasing MEAS button to extend battery life and with analog signal output function. Temperature[...]

2 WARNING To avoid damage or burns, do not make temperature measurement in microwave ovens. The symbol on the instrument indicates that the operator must refer to an explanation in this manual.[...]

3 CAUTION • Do not use the unit near any device which generates strong electromag- netic radiation or near a static electrical charge, as these may cause errors. • Do not point the lens at the sun or at any other source of strong light. If you do, the sensor may be damaged. • Do not contact the lens against the object whose temperature is to [...]

4 SPECIFICATIONS GENERAL Display: 3½ digit liquid crystal display (LCD) with maximum reading of 1999. Overrange : (OL) or (-OL) is displayed. Low battery indication: the " " is displayed when the battery voltage drops below the operating level. Measurement rate: 2.5 times per second, nominal. Operating Environment: 32°F to 122°F (0°C [...]

5 Infrared Radiation ELECTRICAL Temperature Range: 0°F to 500°F, -20°C to 260°C. Display Resolution: 1°F / 1°C. Accuracy: ±3% of reading or ±6°F/3°C, whichever is greater @ 64.4 to 82.4°F (@ 18 to 28°C) ambient operating temperature. Temperature Coefficient: ±0.2% of reading or ±0.36°F/0.2°C, whichever is greater, change in accuracy[...]

6 Spot size increases with distance from the probe tip as shown[...]

7 K-type thermocouple ELECTRICAL Temperature Range: -58°F to 1999°F, -50°C to 1300°C. Display Resolution: 1°F / 1°C. Accuracy: Accuracy is specified for operating temperatures over the range of 64°F to 83°F (18°C to 28°C), for 1 year, not including thermocouple error. ±(0.3% rdg + 2°F) -58°F to 1999°F ±(0.3% rdg + 1°C) -50°C to 100[...]

8 OPERATING INSTRUCTIONS MEAS (MEASURE) Button Depress MEAS button to turn on the meter for measuring temperature. Releasing MEAS button to stop measuring temperature and automatically hold the display reading, the meter turns off automatically after 15 seconds.[...]

OPERATION Infrared Radiation Measurements 1. When the power is off, pressing the MEAS button turns on the power. 2. Use "IR / K" switch to select IR Temperature function. 3. Use " " switch to turn on or turn off the display Back-Light. 4. Use "°F/°C" switch to select °F or °C the Temperature Range. 5. Point the len[...]

10 K-type thermocouple Measurements 1. When the power is off, pressing the MEAS button turns on the power. 2. Use "IR / K" switch to select K Temperature function. 3. Use " " switch to turn on or turn off the display Back-Light. 4. Use "°F/°C" switch to select °F or °C the Temperature Range. 5. Connect a type K the[...]

11 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 energy (electromagnetic radiation), and has the property t[...]

12 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[...]

13 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[...]

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 I c e 0.96 to 0.98 Rubber (black) 0.94 Snow 0.83 Plastic 0.85 to 0.95 Glass 0[...]

W ARRANTY OMEGA warrants this unit to be free of def ects in materials and workmanship and to give satisfactory ser vice for a period of 13 months from date of purchase. OMEGA W arranty adds an additional one (1) month g race per iod to the nor mal one (1) year pr oduct warranty to cov er handling and shipping time . This ensures that OMEGA's [...]

It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply . OMEGA is constantly pursuing cer tification of its products to the European New Approach Directives . OMEGA will add the CE mark to ev er y appropr iate device upon certification. The information contained in this document is believ ed to be correct b[...]

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 [...]