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Temperature/Humidity Monitor
TM-185
TM-185D
User’s Manual
HB2TM1850000
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TM-185/TM-185D
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Table of Contents
1 PREFACE ......................................................... 2
2 CHARACTERISTICS ........................................ 2
3 GENERAL SPECIFICATIONS .......................... 3
4 ELECTRICAL SPECIFICATION ........................ 4
5 INSTRUMENT DESCRIPTION .......................... 5
6 LED DESCRIPTION .......................................... 8
7 CLOCK AND DATE SETUP .............................. 9
8 ALARM RANGE SETUP ................................. 10
9 BATTERY REPLACEMENT ............................ 12
10 EXTERNAL DC POWER ................................ 13
11 SAFETY PRECAUTION .................................. 13
12 SOFTWARE INSTALLATION (TM-185D) ........ 14
13 MAINTENANCE .............................................. 17
14 END OF LIFE .................................................. 18
15 AUTO STORES DATA .................................... 18
16 SINGLE DATA MEMORY ................................ 19
17 VIEWING LOGGED DATA .............................. 19
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TM-185/TM-185D
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LED display.
It shows both the value of temperature
and humidity.
It give the selection of °C or °F.
Real time data.
Data Hold function.
Alarm function.
1 PREFACE
Thank you for your patronage, please do
read the operation instructions in details
before you use this meter, so that
operate correctly, make a machine give
play to the best function.
2 CHARACTERISTICS
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Display: Double rows LED, humidity MAX
reading 999,and temperature MAX reading
1999.
Temperature sensor: Diode.
Humidity Sensor: Capacitor Sensor.
Sampling: 1 times/second.
Power: AC to DC Adapter. (9V/1A).
Backup Power:9V battery、 NEDA 1604、IEC
6F22 or JIS 006P(Only data logger use).
Resolution:0.1%RH，0.1°C，0.1°F.
Size:260x178x47mm（LxWxH）.
Weight: 1000g.
Operating Temperature and Humidity: -20°C ~
+60°C, <95% RH. (Non-condensing).
Storage Temperature and Humidity: -10 to
60°C, <70% RH. (Non-condensing).
Consumption Current:≦700mA.
Standard Accessories:User’s manual, 9V battery，
AC to DC Adapter, Carrying case，LCD Wall Mount.
TM-185D Accessories:
Datalogging Box. (Datalogging capacity with
Memory Size：30,000 data sets).
MINI USB 4P(MALE) to USB A Type cable.
Install CD disk of TM-185D .
3 General Specifications
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Measurement Range:
Humidity: 5%~95%.
Temprature:-20.0°C～60.0°C
/-4.0°F～140.0°F.
Temperature Accuracy:±1.0°C/±1.8°F (-5.0°C
~40.0°C /23°F~104°F)；other ±2.0°C /3.6°F.
Humidity Accuracy:
±2.5%RH(at 25°C,10%RH~90%RH).
±5.0%RH(at 25°C,<10%RH,>90%RH).
Note1: If you require more accurate we can do it
according to your requirement.
Note2: When the AC adaptor is off will start the
backup power only to provide Data Logger
use, the LED won’t be lightened.
Note3: Datalogging operation instruction at
Install CD disk of TM-185D.
4 Electrical Specification
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5 Instrument description
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TM-185/TM-185D
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1. Temperature & Humidity sensor
2. Time Set Button
3. Alarm Set Button
4. °C /°F Set Button/Down Button
5. Enter Button
6. Hold Button/UP Button
7. LED Display
8. Data Logger Box (optional)
9. Data Logger Box interface (-)
10. Power Switch
11. Terminal Blocks (Always off)
12. Audio Output
13. Lo Battery LED Display
14. External power DC 9V
15. ARM Hold
16. Battery Cover.
17. Record Button
18. Memory Button
19. USB interface
20. Data Logger Box interface (+)
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6 LED description
1. Temperature reading value
2. Humidity reading value
3. Time reading value
4. Time unit
5. Data logger symbol
6. Temperature unit
7. Alarm symbol
8. HI symbol
9. LO symbol
10. Humidity unit
TM-185/TM-185D
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7 Clock and Date setup
Push “ ” button into time clock and date
setup.
Push “ ”button to select option to adjust
Push “ ”or “ ” button to change the
digit.
Push “ ” button to store the setup then
exit the mode, If not push “ ” button then
exit clock and data setup.
This meter clock to introduce 12 hour time, if
you want change 24 hours, push” ”.
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8 Alarm Range Setup
Push “ ” button into alarm setup LED will
display ALARM ON。If you just reading alarm
setup please push “ ” button again LED
will display ALARM OFF.
First push “ ” button into alarm range
setup，LED display show “ LO ALARM ON °C
or °F ”,and set LOW alarm Temperature, Push
“ ”or “ ” button to change the digit.
Second push “ ” button into alarm range
setup,LED display show “ HI ALARM ON °C or
°F”,and set Hi alarm Temperature, Push
“ ”or “ ” button to change the digit.
Third push “ ” button into alarm rang
setup, LED display slow “ LO ALARM ON
%RH”, and set Hi alarm Humidity, Push
“ ”or “ ” button to change the digit.
Fourth push “ ” button into alarm range
setup, LED display show “ HI ALARM ON
%RH”, and set Hi alarm Humidity, Push
“ ”or “ ” button to change the digit.
If you want to store this setup push the “ ”
button, If not push “ ” button then exit
alarm setup.
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If test Temperature or Humidity exceed set
range, buzzer were bleep, at this time socket
output sin wave signal at 2000Hz,terminal
blocks were short.
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Turn off the instrument.
Open the battery cover and remove the battery.
Replace with four-9V NEDA 1604, IEC 6F22 or
JIS 006P size battery.
Install the battery cover.
WARNING
If the LO Battery LED were turn on, please
replace the battery immediately
9 Battery replacement
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10 External DC Power
External AC to DC adapter: Voltage
9VDC(8~14VDCMax)
Socket：pin Positive, Ground Casing External
Diameter 6.3mm internal Diameter 2.0 mm
11 Safety Precaution
For cleaning the instrument use a soft dry cloth.
Never use a wet cloth, solvents or water, etc.
Datalogging capacity with Memory Size：500 data sets
Operation Altitude: Up to 2000M.
Operating Environment: Indoors use. This instrument
has been designed for being used in an environment of
pollution degree 2.
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12 Software installation (TM-185D)
Please put the CD in the PC that will be connected
to this meter.
Please select the USB driver that will be installed,
such as E:\TM-185D\PL-2303 Driver Installer.exe
(windows 2000 SP4/windows XP SP2), click twice on
the left key of the mouse to install the USB driver.
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Select the SETUP.EXE i.e.,
E:\TM-185D\SETUP.EXE and installs the desktop icon
Tack out the CD from PC after completed the
installation of the desktop icon.
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Use the USB cable to connect the meter and
computer according to the drawing.
Select the desktop icon (TM-185) and click twice
on left key of the mouse to run the procedure.
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13 Maintenance
Do not use the meter in an environment with severe
change; do not store the unit in an environment with
high temperature, high humidity, and high vibration
Take battery off if the meter has not been used for a
long period of time
The Diode temperature probe is used to measure
temperature and the capacitive humidity sensor is
used to measure take humidity
The thermocouple and humidity sensor will start aging
under the influence of oxidation, reduction, corrosion,
pollution, vaporization, diffusion or other metallurgy.
The aging process will affect its precision seriously.
Cleaning and inspection of temperature probe:
The smoke, coal, dust, grease attached on the
protective tube of temperature probe will slow down
the heat conduction of the thermocouple and cause
measuring error. Therefore, it should be cleaned
periodically. The metal coating of thin thermocouple
should be replaced properly upon the occurrence of
corrosion.
Cleaning and inspection of humidity sensor:
The smoke and dust attached on the humidity sensor
will slow down the function of humidity sensor and
cause measuring error. Therefore, it should be
cleaned periodically. Blow off the dust with mild
compressed air instead of water or alcohol. The
aluminum plate inside the humidity sensor should be
replaced upon the occurrence of corrosion.
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Caution: this symbol indicates that
equipment and its accessories shall be
subject to a separate collection and
correct disposal
14 End of life
15 Auto Stores Data
Push “ ” button into time clock and
date setup.
Push “ ” button again into auto stores
time clock setup.
This time LED display show auto stores
data time，you can push to change
time unit (Max auto stores data time :23hour
59min 59sec)
Push “ ”or “ ” button to change
the digit.
If you want to store this setup push “ ”
button, If not push “ ” button then exit
auto stores data time setup.
If stores data will be writhing into memory
LED display show Record on
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16 Single data memory
Push Record button (in TM-185D) each
time to store the display reading and
memory location in memory.
17 Viewing logged Data
Push Memory button (in TM-185D) into
view logged data mode，push Memory
button again exit view logged data mode
In view logged data mode push“ ”
button reading stores time ，push “ ”
button to change the temp unit，Push
“ ”or “ ” button to change view
logged data
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TENMARS ELECTRONICS CO., LTD
6F, 586, RUI GUANG ROAD, NEIHU,
TAIPEI 114, TAIWAN.
E-mail: service@tenmars.com
http://www.tenmars.com
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