Related Manuals for Extech Instruments RH300
Summary of Contents for Extech Instruments RH300
- Page 1 USER MANUAL Digital Psychrometer Models RH300 and RH305 (kit) 1.800.561.8187 information@itm.com www. .com...
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Page 2: Meter Description
Introduction Congratulations on your purchase of the Extech RH300 Digital Psychrometer. This device measures Humidity, Air Temperature, Dew Point temperature and Wet Bulb temperature. Advanced features include External Temperature Measurement (with optional probe), Data Hold, selectable Auto Power Off, and MAX/MIN/Average reading. Careful use of this meter will provide years of reliable service. -
Page 3: Display Description
T1 (Air Temperature) and DP (Dew point) measurements. 5. The lower right display will read WB (Wet Bulb) temperature. Note: If the external Type K probe is not connected, T1-T2, T2-DP, and T2 measurements will not be displayed. RH300-en-GB_v1.7 9/16 1.800.561.8187 information@itm.com www. .com... - Page 4 2, 5, 10, 20, 40 or 60 minutes. “n” disables the auto power off function. When the desired power-off time appears in the display, release both buttons to select the time and return to normal operation. RH300-en-GB_v1.7 9/16 1.800.561.8187 information@itm.com www.
- Page 5 11. The Calibration is complete, turn power OFF. Note: To exit from the calibration procedure before completion, press the ON/OFF button. Note: If the salt at the bottom of the calibration bottles appears dry, the bottles should be replaced. RH300-en-GB_v1.7 9/16 1.800.561.8187 information@itm.com www.
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Page 6: Maintenance
An error message will appear on the display if the meter fails an internal diagnostic test. ER1: Relative Humidity failure. Repair/replacement is necessary. ER2: Internal temperature failure. Repair/replacement necessary. ER3: Reference resistance failure. Repair/replacement necessary. ER4: Internal temperature is out of range. ER5: External temperature is out of range. RH300-en-GB_v1.7 9/16 1.800.561.8187 information@itm.com www. .com... -
Page 7: Specifications
Specifications Range and Resolution Accuracy 0.0 to 100.0% RH ±3% RH (10 to 90%) @ 23 Humidity -20 to 50 C (-4.0 to 122.0 ±1 C (±1.8 Temperature (internal) -20 to 70 C (-4.0 to 158.0 ±1 C (±1.8 Temperature (external) Triple LCD Display Humidity: Precision capacitance sensor...
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