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Summary of Contents for CEM DT-8861
- Page 1 Non-Contact Infrared Thermometers Operating Manual 04/07-61...
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Page 2: Table Of Contents
TABLE OF CONTENTS ………………………………………3 INTRODUCTION ……………………………………………3 FEATURES ………………………… 4 WIDERANGEAPPLICATION ……………………………………………… 4 SAFETY ……………………………… 5 DISTANCE&SPOTSIZE …………………………………… 6 SPECIFICATIONS ……………………… 8 FRONTPANELDESCRIPTION ……………………………………………8 INDICATOR ………………………………………………9 BUTTONS ………………………… 10 MEASURMENTOPERATION …………………………… 13 BATTERYREPLACEMENT ……………………………………………… 13 NOTES …………………………………… 17 MAINTENANCE... -
Page 3: Introduction
INTRODUCTION Thank you for purchase of the IR Thermometer. This is capable non-contact (infrared) temperature measurements at the touch of a button. The built-in laser pointer increases target accuracy while the backlight LCD and handy push-buttons combine for convenient, ergonomic operation. -
Page 4: Widerangeapplication
MAX temperature displays Backlight LCD display Automatic selection range and Display Resolution 0.1º C(0.1ºF) Trigger lock Set high and low alarms WIDE RANGE APPLICATION: Food preparation, Safety and Fire inspectors, Plastic molding, Asphalt, Marine and Screen printing, measure ink Dryer temperature, HVAC/R, Diesel... -
Page 5: Distance&Spotsize
Distance & Spot Size As the distance (D) from the object increases, the spot size (S) of the area measured by the unit becomes larger. The relationship between distance and spot size for each unit is listed below. The focal point for each unit is 914mm (36”). The spot sizes indicate 90% encircled energy. - Page 6 Assumes ambient operating temperature of 23 to 25 o C (73 to 77℉) -50 ~ 20℃(-58℉ ~ 68℉) ±2.5℃(4.5℉) ±1.0% ±1.0℃(1.8℉) 20℃ ~300℃(68℉ ~572℉) 300℃ ~550℃(572℉ ~ 1022℉) ±1.5% Repeatability -50~20℃(-58~68℉) : ±1.3℃(2.3℉) 20~550℃(68~1022℉): ±0.5% or ±0.5℃(0.9℉) Response time 150ms Spectral response 8~14um Emissivity...
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Page 7: Frontpaneldescription
Safety “ CE ” Comply with EMC Note: Field of View: Make sure that the target is larger than the unit’s spot size. The smaller the target, the closer you should be to it. When accuracy is critical, make sure the target is at least twice as large as the spot size. -
Page 8: Buttons
④ High alarm and low alarm symbol ⑤ ℃/℉ symbol ⑥ Low power symbols ⑦ Emissivity symbol and value ⑧ Temperature values for the MAX ⑨ Symbols for MAX ⑩ Current temperature value Buttons ① Up button (for EMS,HAL,LAL) ② Down button (for EMS,HAL,LAL) ③... - Page 9 appropriate code appears in the display, press the UP and down buttons to adjust the desired values. MODE Button Function Press the mode button also allows you to access EMS adjustment state,Emissivity(EMS),Lo LOCK on/off ck on/off,HAL on/off, HAL adjustment on/off,LOW HAL on/off adjustment,Each time you press set you advance...
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Page 10: Measurmentoperation
turn on or off . Press the Measurement Trigger to confirm the lock measurement mode. The will continuously display the temperaure Thermometer until press again the Measurement Trigger. In lock mode, press the up button or down button adjustable the Emissivity.HAL (LOW) on/off. Press the up button or down button to turn on or turn off. - Page 11 ① Hold the meter by its Handle Grip and point it toward the surface to be measured. ② P ull and hold the Trigger to turn the meter on and begin testing. The display will light if the battery is good.
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Page 12: Batteryreplacement
temperature measurements, some time (several minutes) is required after the low (and before the high) temperature measurements are made. This is a result of the co oling process, which must take lace for the IR sensor. BATTERY REPLACEMENT ① As battery power is not sufficient, LCD will display “... - Page 13 collected and focused onto a detector. The unit’s electronics translate the information into a temperature reading, which is display on the unit. In units with a laser, the laser is used for aiming purposes only. Field of View Make sure that the target is larger than the unit’s spot size.
- Page 14 such as glass. It will measure the surface temperature of the glass instead. ③ Steam, dust, smoke, etc., Can prev ent accurate measurement by obstructi ng the unit’s optics. Emissivity Emissivity term used desc ribe energy-emitting characteristics of materials. Most (90% of typical applications) organic materials and painted or oxidized surfaces have an emissivity of 0.95 (pre-set in the unit).
- Page 15 Emissivity Va lues Substance Thermal Substance Thermal emissivity emiss ivity Asphalt 0.90 to 0.98 Cloth (black) 0.98 Concrete 0.94 Human skin 0.98 Cement 0.96 Lather 0.75 t o 0.80 Sand 0.90 Charcoal 0.96 (powder) Earth 0.92 to 0.96 Lacquer 0.80 t o 0.95 Water 0.92 to 0.96...
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Page 16: Maintenance
7. MAINTENANCE Repairs or service are not covered in this manual and should only be carried out by qualified trained technician. Periodically, wipe the body with a dry cloth . Do not use abrasives or solvents on this instrument. For service, use only manufacturer’s spec ified parts.
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