Temperature/Humidity Monitor
User’s Manual
HB2TM1850001
Table of Contents
1 PREFACE.......................................................... 2
2 CHARACTERISTICS ........................................ 2
3 GENERAL SPECIFICATIONS .......................... 3
4 ELECTRICAL SPECIFICATION........................ 5
5 INSTRUMENT DESCRIPTION.......................... 7
6 LED DESCRIPTION.......................................... 9
7 CLOCK AND DATE SETUP............................ 10
8 ALARM RANGE SETUP..................................11
9 BATTERY REPLACEMENT............................ 13
10 EXTERNAL DC POWER................................. 14
11 SAFETY PRECAUTION.................................. 14
12 SOFTWARE INSTALLATION (TM-185D)....... 15
13 MAINTENANCE .............................................. 18
14 END OF LIFE .................................................. 19
15 AUTO STORE DATA....................................... 19
16 SINGLE DATA MEMORY................................ 20
17 VIEWING LOGGED DATA.............................. 20
1
1 PREFACE
Thank you for your purchase. Please
read the operation instructions in detail
before you use this meter, so that it may
operate correctly and provide the best
functionality for your use.
2 CHARACTERISTICS
LED display.
Displays both temperature and
humidity.
°F or °C selectable.
Real time data.
Data Hold function.
Alarm function.
2
3 General Specifications
Display: Double row LED, humidity MAX
reading 999,and temperature MAX reading
1999.
Temperature sensor: Diode.
Humidity Sensor: Capacitor Sensor.
Sampling: 1 time/second.
Power: AC to DC Adapter. (9V/1A).
Backup Power:9V battery、 NEDA 1604、IEC
6F22 or JIS 006P(Only for data logger use).
Resolution:0.1%RH，0.1°C，0.1°F.
3
Size:10.2” x 7” x 1.9”(260x178x47mm)
（LxWxH）.
Weight: 35.3oz (1000g).
Operating Temperature and Humidity: -4 to
140°F (-20 to 60°C), <95% RH.
(Non-condensing).
Storage Temperature and Humidity: 14 to
140°F (-10 to 60°C), <70% RH.
(Non-condensing).
Consumption Current:≦700mA.
Standard Accessories:
AC to DC Adapter, CD, Wall Mount.
Accessories: Length of wire for sensor 3.2’
(1meter)
Accessories:
Datalogging Box.
Memory Size：30,000 data sets).
MINI USB 4P(MALE) to USB A Type cable.
Install CD disk .
User’s manual, 9V battery，
(Datalogging capacity with
4
4 Electrical Specification
Measurement Range:
Humidity: 5% to 95%.
Temperature: -4.0°F to 140.0°F
/-20.0°C～60.0°C
.
Temperature Accuracy:±1.8°F/±1.0°C (23°F to
104°F/ -5.0°C to 40.0°C )；other ±3.6°F /2.0
°C.
Humidity Accuracy:
±2.0%RH(at 25°C,35%RH to
80%RH).±2.5%RH(at 25°C, 10% to
35%,80% to90%)other
±5.0%RH(at 25°C,<10%RH,>90%RH)
Note 1: When the AC adaptor is off will start the
backup power only to provide Data Logger
use, the LED won’t be lightened.
Note 2: Datalogging operation instruction on
Install CD disk of TM-185D.
5
6
5 Instrument description
7
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 (+)
8
6 LED description
1. Temperature reading value
2. Humidity reading value
3. Time readin g value
4. Time unit
5. Data logger symbol
6. Temperature unit
7. Alarm symbol
8. HI symbol
9. LO symbol
10. Humidity unit
9
7 Clock and Date setup
Push “ ” button into time clock and date
setup.
Push “
Push “
digit.
Push “ ” button to store the setup then exit
the mode, If not push “ ” button then exit
clock and data setup.
”button to select option to adjust
”or “ ” button to change the
The meter clock starts on 12 hour time, if you
want change 24 hour format, push”
”.
10
8 Alarm Range Setup
Push “ ” button into alarm setup LED will
display ALARM ON。If you just reading alarm
setup please push “
will display ALARM OFF.
” button again LED
First push “
setup，LED display show “ LO ALARM ON °C
or °F ”,and set LOW alarm Temperature, Push
“
”or “ ” button to change the digit.
Second push “
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 “
button to change the digit.
Fourth push “
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 “
alarm setup.
” button into alarm range
” button into alarm range
”or “ ”
” button into alarm range
” button then exit
11
If test Temperature or Humidity exceed set
range, the buzzer will beep, at this time socket
output sin wave signal at 2000Hz terminal
blocks will short.
12
9 Battery replacement
If the LO Battery LED were turn on, please
replace the battery immediately
Turn off the instrument.
Open the battery cover and remove the battery.
Replace with one-9V NEDA 1604, IEC 6F22 or
JIS 006P size battery.
Install the battery cover.
WARNING
13
10 External DC Power
External AC to DC adapter: Voltage
(8~14VDCMax)
9V
DC
Socket：pin Positive, Ground Casing External
Diameter 0.22”(5.5mm) internal Diameter 0.08”
(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.
14
12 Software installation
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.
15
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.
16
Use the USB cable to connect the meter and
computer according to the drawing.
Select the desktop icon and click twice on left key
of the mouse to run the program.
17
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
Diode temperature probe is used to measure
The
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.
18
14 End of life
Caution: this symbol indicates that
equipment and its accessories shall be
subject to a separate collection and
correct disposal
15 Auto Store 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
time unit (Max auto stores data time :23hour
59min 59sec)
to change
Push “ ”or “ ” button to change
the digit.
If you want to store this setup push “ ”
button, If not push “
auto stores data time setup.
” button then exit
If stores data will be writhing into memory
LED display show Record on
19
16 Single data memory
Push Record button each time to store the
display reading and memory location in
memory.
17 Viewing logged Data
Push Memory button to 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
20
”
”
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