Triplett RHT32 User Manual
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Triplett RHT32 User Manual

Digital psychrometer
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User Manual
RHT32
Digital Psychrometer
Introduction
Congratulations on your purchase of the Triplett RHT32 Digital
Psychrometer. This unique meter designed as pocket size, battery operated
for Humidity, Dry Bulb, Dew Point, Wet Bulb, External Temperature &
Temperature Differential measurement. The sensor is also specially
protected by protective turn cap.
The psychrometer is a micro processor-based design. A must device for
HVAC engineers use.

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Summary of Contents for Triplett RHT32

  • Page 1 RHT32 Digital Psychrometer Introduction Congratulations on your purchase of the Triplett RHT32 Digital Psychrometer. This unique meter designed as pocket size, battery operated for Humidity, Dry Bulb, Dew Point, Wet Bulb, External Temperature & Temperature Differential measurement. The sensor is also specially protected by protective turn cap.
  • Page 2 Description METER DESCRIPTION Power On/Off Button 2. °C/°F Button, Switch between °C and °F 3. MODE Button, Switch between Db & DP (Db=Air Temperature) 4. HOLD Button Hold display Power Button + HOLD = Non-Sleep mode (The default setting is auto-sleep in 5 minutes) 1.

  • Page 3: Operation

    Operation Sensor Protective Cap Turn the protective cap (top of meter), in the direction of the OPEN arrow to allow air into the sensor cavity. Turn the cap in the direction of the CLOSE arrow to protect the sensors. Always open the cap to take measurements and close when storing.

  • Page 4: Data Hold Function

    Figure B Figure C (requires optional brobe) Data Hold Function Press "HOLD" button until (HLD) appears in display. The current reading is now held and will not change until the Hold function is cancelled (see figure D). Press "HOLD" button again to cancel the Hold function. Figure D The Hold function can be used on humidity, dew-point, dry bulb/T1, external...

  • Page 5: Min/Max Function

    Wet Bulb Function Turn the meter on by pressing power button. You will see "Wb" temperature indicated on the display (see figure E1). External Temperature Function Plug the optional external probe into the meter. Press the RESET button until "Ex" appears on display. The meter will now display external probe temperature.
  • Page 6 NOTE: While checking the MIN/MAX value for "Ex" don’t replace the probe or you will get an error code. If you don’t plug the probe into socket before turning the meter on, the error code will also appear when you check the MIN/MAX value. NOTE: Low battery power tends to give inaccurate readings, therefore make sure you have enough power.

  • Page 7: Maintenance

    Maintenance Cleaning and storage 5. Clean the meter housing with the sensor cap closed, using a lightly damp cloth and mild detergent when necessary. Do not use solvents or abrasives. 6. Store the meter -- with the protective cap closed -- in an area with moderate temperature and humidity (refer to the operating/storage conditions specifications).

  • Page 8: Error Message Displays

    Error Message Displays ER1: Relative Humidity measurement failure. Have the meter repaired or replaced. ER2: Internal temperature circuit failure. Have the meter repaired or replaced. ER3: Reference resistance failure. Have the meter repaired or replaced. ER4: Internal temperature sensor measurement is out of range. Always measure within the published specified range.

  • Page 9: Specifications

    Specifications Range and Resolution Accuracy Humidity 0.0 to 100.0% RH ±3% RH (10 to 90%) @ 23 -20 to 50 C (-4.0 to Temperature (internal sensor) ±1 C (±1.8 122.0 -20 to 70 C (-4.0 to Temperature (external ±1 C (±1.8 158.0 probe range) Display...

  • Page 10: Warranty

    Triplett / Jewell Instruments extends the following warranty to the original purchaser of these goods for use. Triplett warrants to the original purchaser for use that the products sold by it will be free from defects in workmanship and material for a period of (1) one year from the date of purchase.

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