Triplett RHT02 User manual
User Manual
RHT02 Hygro-Thermometer Pen
RHT05 Hygro-Thermometer Pen with Wet
Bulb and Dew Point Functions
Introduction
Thanks for purchasing the Triplett RHT02/RHT05 Hygro-Thermometer Pen
The models RHT02/RHT05 can measure Relative Humidity from 10% to
90% and Temperature from -4 to 140oF (-20 to 60oC). Advanced features
include MIN/MAX Memory, Push-button Calibration, Display Hold, and
Automatic Power Off. The model RHT05 adds Wet Bulb (Wb) and Dew
Point (DP) calculated measurements.
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Features
°F/°C switchable
Data Hold freezes the reading on the display
Min/Max records the highest and lowest readings
Auto power off with disable
Built-in Humidity calibration using optional calibration solutions
Includes CR2032 battery
1-year warranty
Description
METER DESCRIPTION
1. RH and Temperature
Sensor
2. Function Button Area
3. LCD Display
FUNCTION BUTTONS
RHT02 RHT05
LCD DISPAY
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Operation
Power on the meter by pressing ON/OFF button. You will see a full
display on the screen (though you might have seen "DP","WB"
shown on the screen, however these icons are only available for
RHT05 model) for one second, now the meter will start measuring
the temperature and humidity and display both readings at the
same time.
Note: Make sure you have rotated the sensor cap for ready to
measure.
AIR -ment temperature and humidity.
The default setting of temperature display can be in oF or oC. You
can press F/C button to change the temperature display
Press MIN/MAX button , MIN appears on
display.
The LCD screen is now showing the minimum
humidity and tem-perature readings in
memory. Press MIN/MAX button again, MAX
will show on the LCD screen. Press MIN/MAX
button once again, it backs to the normal
measurement.
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To clear current MIN and MAX readings from memory, press
and hold RESET button, now the meter reading turns to the
normal mode and data in memory is clear now.
Press the hold button until "HLD" appears in display. The
current reading is now being held and will not change until
Hold function HOLD
function. Hold function can be used for Humidity and
Temperature
Unit will turn itself off after 20 min. (Sleep mode).To override
Auto Power Off function (Non-Sleep Mode), press ON/OFF
,HOLD keys simultaneously before powering on. Now the
display shows "n" on the screen. When "n" appears then
release ON/OFF button. Unit will now be in Non-sleep mode
for long time operation purposes
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RH Calibration
the models RHT02/RHT05 can be self-calibrated at 33% and 75%
following the procedure below**
1. Turn off the meter, plug the meter probe into 32.8% salt bottle and
ON/OFF+F/C more than one second to turn on the
meter and enter Calibration mode.
2. You will see 3x.x% display on the LCD, after 60 minutes the
3x.x%
saving)
3. MN/MX ey more than
one second to enter 7x.x% calibration.
4. 7x.x%
5. Flashing will stop after 60 minutes, it means the whole calibration
is completed
NOTES:
You can exit calibration
without saving by
ON/OFF
Auto power off is disabled
in calibration mode.
For best accuracy results
the calibration should be
done in an environments
temperature of 23+2°C
If the reading difference is
not within 0.3% after
calibration , it means the
calibration is failed
RH Calibration solution
lookup table ---
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BATTERY REPLACEMENT
1. Turn off the meter and use a coin to open the battery cover.
2. Put the battery (CR2032) whose
"+" faces out into the battery compartment and place the battery cover back
and lock it with a coin
Troubleshooting Tips
POWER ON BUT NO DISPLAY
- Make sure the time of pressing ON/ OFF
- Check the battery is in place and make sure good contact and correct
polarity.
- Replace a new battery and try again.
- Remove the battery. Press
try again.
DISPLAY DISAPPEARS
- Check whether the low battery indicator is displayed on before display
off , if yes , please replace with a new battery.
- ON/ OFF+HOLD isable Auto
Power Off function for a long time using.
CALIBRATION FAILURE
- Check whether the low battery icon is displayed on before cabliration , if
yes, please replace with a new battery and try again.
- Make sure the good sealing when the meter probe plug into the salt bottle.
- Make sure the free air temperature is within 23+2 oC when calibration.
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Specifications
RHT02 RHT05
Air
Temperature
-
4 to 140°F (
-
20
to 60°C)
-
4 to 140°F (
-
20 to
60°C)
Accuracy ±1.8°F/1°C ±1.8°F/1°C
Relative
Humidity 0 to 100%RH 0 to 100%RH
Accuracy ±3RH (10 to 95%) ±3RH (10 to 95%)
Wet Bulb calculated
Dew Point calculated
Resolution 0.1°F/°C; 0.1%RH 0.1°F/°C; 0.1%RH
Power 1 CR2032 Battery 1 CR2032 Battery
Dimensions
6.9 x 1.7 x 0.6"
(175 x 42 x
16mm)
6.9 x 1.7 x 0.6" (175
x 42 x 16mm)
Weight 1.9oz (55g) 1.9oz (55g)
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. This warranty does not apply to any of our products
which have been repaired or altered by unauthorized persons in any way or purchased
from unauthorized distributors so as, in our sole judgment, to injure their stability or
reliability, or which have been subject to misuse, abuse, misapplication, negligence,
accident or which have had the serial numbers altered, defaced, or removed.
Accessories, including batteries are not covered by this warranty
Copyright © 2021 Triplett
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