Triplett RHT02 Manuale utente

User Manual

RHT02 Hygro-Thermometer Pen

RHT05 Hygro-Thermometer Pen with Wet

Bulb and Dew Point Functions

Introduction

Thanks for purchasing the TriplettRHT02/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.

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

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” icon shows current environ-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.

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 is cancelled. Press “HOLD” key to cancel 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

NOTE: For model RHT05 press “MODE” key to switch the mode of

temp. display. When meter is in AIR temperature mode, press “MODE”

to toggle between “AIR”, “DP”, and “WB” readings.

RH Calibration

**NOTE: With optional calibration bottles or “know” humidity chambers

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

press “ON/OFF+F/C” key 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

flashing stops to indicate the finish of “3x.x%” calibration (with

saving)

3. Move the meter probe to 75.3% and press “MN/MX” key more than

one second to enter 7x.x% calibration.

4. Now “7x.x%” is flashing on the LCD.

5. Flashing will stop after 60 minutes, it means the whole calibration

is completed

NOTES:

You can exit calibration

without saving by

pressing “ON/OFF” key

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 ---

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” key is more than 300mS.

-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 “ON/OFF” for 10 seconds. Install the battery and

try again.

DISPLAY DISAPPEARS

-Check whether the low battery indicator is displayed on before display

off , if yes , please replace with a new battery.

-Turn on the meter by pressing “ON/ OFF+HOLD” key to disable 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.

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

Relative

Humidity

0 to 100%RH

Accuracy

±3RH (10 to 95%)

Wet Bulb

—

calculated

Dew Point

—

calculated

Resolution

0.1°F/°C; 0.1%RH

Power

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)

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

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