Related Manuals for General tools CM880
Summary of Contents for General tools CM880
- Page 1 99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431 Visit us at www.TestEquipmentDepot.com...
- Page 2 INTRODUCTION Congratulations on your purchase of the Hygro-Thermometer ! This unique instrument is portable, battery operated in Temperature./Relative Humidity/Dew Point / Wet Bulb temperature in a compact measuring device. There are 3 models available for selection. The Hygrometer is ideal for HVAC/R technicians measuring Temperature , Humidity, Though you might have seen Dew Point or Wet Bulb ..
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Page 3: Controls And Indicators
CONTROLS AND INDICATORS Primary Data Screen displays pressure value. 2. "-" .Minus pressure display. 3. MAX Maximum recorded. 4. MIN Minimum recorded. 5. HLD Hold current reading. 6. td Dew Point measurement. . WB Wet Bulb temperature measurement . Celsuis unit 9. -
Page 4: Auto Power Off (Sleep Function)
AUTO POWER OFF (SLEEP FUNCTION) Unit will turn itself off after 20 minutes (Sleep mode) To override Auto Power Off function (Non-Sleep Mode) press ON/OFF and MIN/MAX button simul- taneously. After the full display appears release ON/OFF button first,the display will show "... - Page 5 DATA HOLE FUNCTION Press "HOLD" button until (HLD) appears in display. The current reading is now being held and will not change until Hold function is cancelled. (See Fig.D) Press "RST" button to cancel Hold function. Hold function can be used for temperature, Humidity, Dew-point &...
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Page 6: Min./Max. Function
MIN./MAX. FUNCTION (1) Press and hold MN/MX button until (MIN) appears on display.(See Fig.G) Display is now showing minimum humidity and temperature reading in memory. (2) Press and hold MN/MX button again until (MAX) appears on display. (See Fig.H) Display is now showing maximum humidity and tem- perature readings in memory. -
Page 7: Maintenance
Caution: Please do not immerse probe into liquids as this will cause permanent damage to the sensor. MAINTENANCE The meter is calibrated in house before shipping. To maintain the meter in the good condition for use , recommend to calibrate the meter after long time using. - Page 8 See Fig.H ,please leave the meter in the bottle for at least 40 minutes and the meter will start the calibration process. When the calibration for 33% is done ,you will see a MIN and MAX display on the LCD screen. Press C/F button to save the calibration of 33% .
- Page 9 Automatic Calibration : Turn off the meter , then plug the meter probe into the 33% salt bottle and then power on the meter by pressing " ON /OFF button and the C/F button at the same time. When LCD screen shows a full display, release the ON/OFF key.
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Page 10: Troubleshooting
TROUBLESHOOTING Power on but no display. Check the battery are in place and making good contact or correct polarity , replace a new battery or attach optional AC adaptor for the weak battery caused. No Display. Make sure battery is not empty , if the display disappear , check sleep mode is active. -
Page 11: Specification
SPECIFICATION Temperature range: Model: 8701 (grey color body) -10~+50 C (+14~+122 F) Model: 8703 / 8705 (black color body) -20~+50 C ( - 4~+122 F ) Accuracy : Relative Humidity : Model: 8701 5~95%RH 4%25 C Model: 8703/8705 0~100%RH 3%25 C Temperature : Pocket size : 16.5mm(H) x 48.52mm(W) x 170mm(L)
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