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Related Manuals for Omega OS643W
Summary of Contents for Omega OS643W
- Page 1 OMEGA...
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Page 3: Safety Information
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. - Page 4 WARNING To avoid damage or burns, do not make temperature measurement in microwave ovens. symbol on the instrument indicates that the operator must refer to an explanation in this manual.
- Page 5 • 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.
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Page 6: Specifications
GENERAL Display: 3½ digit liquid crystal display (LCD) with maximum reading of 1999. Overrange: (OL) or (-OL) is displayed. Low battery indication: the " below the operating level. Measurement rate: 2.5 times per second, nominal. Operating Environment: 32°F to 122°F (0°C to 50°C) at < 70% relative humidity. - Page 7 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 per °F/°C change in ambient operating tempera- ture above 82.4°F/28°C or below 64.4°F/18°C.
- Page 8 Spot size increases with distance from the probe tip as shown...
- Page 9 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 1000°C ±(0.5% rdg + 1°C) 1000°C to 1300°C...
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Page 10: Operating Instructions
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. -
Page 11: 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. - Page 12 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.
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Page 13: Measurement Considerations
Infrared radiation is a form of energy (electromagnetic radiation), and has the property that it passes easily through air while it is easily absorbed by solid matter. With an emission thermometer, which operates by detecting infrared radiation accurate measurement is possible, irrespective of the air tempera- ture or the measurement distance. - Page 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.
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Page 15: Maintenance
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. - Page 16 Substance Thermal emissivity Asphalt 0.90 to 0.98 Concrete 0.94 Cement 0.96 Sand 0.90 Earth 0.92 to 0.96 Water 0.92 to 0.96 0.96 to 0.98 Snow 0.83 Glass 0.90 to 0.95 Ceramic 0.90 to 0.94 Marble 0.94 Plaster 0.80 to 0.90 Mortar 0.89 to 0.91 Brick (red)
- Page 17 OMEGA warrants this unit to be free of defects in materials and workmanship and to give satisfactory service for a period of 13 months from date of purchase. OMEGA Warranty adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time.
- Page 18 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 believed to be correct but OMEGA Engineering, Inc. accepts no liability for any errors it contains, and reserves the right to alter specifications without notice.
- Page 19 Where Do I Find Everything I Need for Process Measurement and Control? HEATERS PRESSURE/STRAIN AND FORCE FLOW/LEVEL M-3263/0799 OMEGA...Of Course! TEMPERATURE ENVIRONMENTAL MONITORING AND CONTROL pH/CONDUCTIVITY DATA ACQUISITION...