Tenmars TM-183N User manual
TM-183N
Temperature/Humidity Meter
User’s Manual
HB2TM183N000
Contents
1Introduction......................................................1
2Accessories .....................................................1
3Safety Precaution.............................................1
4Instrument Description.....................................2
5Operation.........................................................3
5.1 Temperature Unit Switch:.............................3
5.2 Data Hold:....................................................3
5.3 Maximum/Minimun Read Value
Lock(MAX/MIN):.........................................4
5.4 Backlight :....................................................5
5.5 Temperature/Dew Point/Wet Bulb/Relative
Humidity Switch:.........................................5
5.6 Relative Value (REL):...................................5
5.7 Manual Recording:.......................................6
5.8 Read Data Recorded in Memory:.................6
5.9 Setting mode:...............................................8
6General Specifications ...................................14
7Electrical Specification ...................................15
7.1 Temperature:..............................................15
7.2 Humidity:....................................................15
8Maintenance or Repair...................................16
9Battery Replacement .....................................16
10 Product Disposal............................................17
TM-183N
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1 Introduction
This meter uses precision capacitive humidity
sensor and NTC temperature sensor designs.
2 Accessories
1 Meter
1 Temperature and Humidity probe
1 9V battery
1 Carrying case
1 User’s Manual
3 Safety Precaution
Note! Please refer to this manual.
Improper use may damage the meter
and its components.
Complies with European Directive.
⚫Do not operate in environments with flammable gas
or humid environments.
⚫Operating altitude: up to 2000M.
⚫Operating environment: Indoor use;Pollution degree2.
⚫Clean with soft cloth when dirty, such as glasses cloth.
Do not clean with chemicals and other solvents.
⚫EMC: EN61326-1:CISPR 11:Group 1, Class B
Class B –Equipment for use in all
establishments other than domestic.
Group 1 –RF energy generated is needed for
internal functioning.
TM-183N
2
4 Instrument Description
1. Temperature/humidity probe input terminal
2. LCD display
3. On/off button
4. Backlight and setting downwards button
5. HOLD and setting upwards button
6. Relative value/alarm setting/time display switch
button
7. Maximum/minimum value and read record button
8. Dew point/wet bulb/temperature/relative humidity
switch
9. Switches between the ℃or ℉temperature unit
and saves record
10.Temperature and Humidity probe
11.Temperature and Humidity probe connector
TM-183N
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5 Operation
1. Connect the temperature/humidity probe onto this
meter.
2. Press the button to turn on/off and it will show
full display for 0.5 seconds. Then, display the
program version for 0.5 seconds, and then enter
measuring mode.
3. Please connect the probe before powering on, or
else it will display wrong values.
5.1 Temperature Unit Switch:
Press and hold the button and then press
the button to switch between the temperature units.
5.2 Data Hold:
Press the button to and on/off data hold “HOLD”
symbol will be displayed on the LCD.
TM-183N
4
5.3 Maximum/Minimun Read Value Lock(MAX/MIN):
Under measurement mode, press the button for less than
1 second to enter MAX/MIN mode and start timing. The main
display area displays the currently tested temperature and the
secondary display area displays the recording time.
Under MAX/MIN mode, press the button repeatedly for
less than 1 second and the main display area of the LCD will
display the currently tested MAX→MIN values in cycle.
Under MAX/MIN mode, press the button repeatedly and
the main display area of the LCD will display ℃
→%RH→WET→DEW in this order.
Under MAX/MIN mode, press the button for over 1 second
to exit MAX/MIN mode.
TM-183N
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5.4 Backlight :
Press the button to turn the backlight on or off. The backlight
will automatically turn off after 15 seconds.
5.5 Temperature/Dew Point/Wet Bulb/Relative
Humidity Switch:
Under measurement mode, press the button to switch
between dew point measurement →wet bulb measurement →
relative humidity measurement in this order.
5.6 Relative Value (REL):
Under measurement mode, press the button for less than 1
second to enable or disable the REL function. When the REL
function is enabled, the thermometer and hygrometer will record
the current read value and the LCD display will be reset to zero.
The thermometer and hygrometer will use this read value as the
reference value and deducted from the measured values
afterwards.
TM-183N
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5.7 Manual Recording:
Press the button and the text REC will be displayed on the LCD. It
will also record the currently displayed data into memory.
5.8 Read Data Recorded in Memory:
Press and hold the button and then press the button to
enter read recorded data in memory mode.
Press the button or button to read other recorded data.
Press the button to change the temperature unit.
TM-183N
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Press the button to change the displayed data
(temperature →humidity →dew point temperature →
wet bulb temperature).
Press the button to change the displayed time
(hour:minute →month:day →Year)
Press the button again and then press to exit
read data recorded in memory mode.
TM-183N
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5.9 Setting mode:
Press the button and then press the button to enter the
setting mode.
Press the button to switch between setting modes. (Remark 1);
Press the button to record settings and exit setting mode.
Remark 1: You can set eight functions in setting mode
1. Enable alarm function setting 5. High humidity alarm setting.
2. Low temperature alarm setting. 6. Time setting.
3. High temperature 7.Automatic shutdown
alarm setting. time setting.
4. Low humidity alarm 8. Clear records.
setting.
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