MEET Technology MS-933 User manual

5. Description
4. Specifications
Thermo Hygrometer
Model No.: MS-933
Thank you for purchasing MEET Thermo Hygrometer
- Thermo Hygrometer
- Operating manual
The Humidity & Temperature Meter is designed with a high accuracy temperature & humidity sensor,
providing high accuracy, fast response and stable readings. It is widely used for monitoring and
collecting data of environment temperature and humidity.
This meter is widely used for measurement of temperature and humidity of room, metro, library,
commercial center, communication center room, etc.
- °C / °F selectable
- MAX. / MIN. reading display
- Hold / Freeze reading
- Dew Point temp. reading
- Auto Power Off
- Self-calibration function
1. Contents
2. Introductions
3. Advanced Features
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Humidity range
Humidity accuracy
Temp. range
Temp. accuracy
Dew Point temp. range
Dew Point temp. accuracy
Display
Data update
Auto power off
Powered by / duration
Operating conditions
Storage conditions
Weight (approx.):
Temp. & Humidity sensor
LCD display
°C/°F selection key
MAX/MIN selection key
SET key
Backlight ON/OFF key
Power ON/OFF key
Battery compartment
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0~100%RH
0~20%RH, 80%~100%RH
±4.0%
20% ~40%RH, 60% ~ 80%RH
±3.0%
40% ~ 60%RH
±2.5%
3 1/2 digits
1 times/sec
151g
158x62x32
-20°C~70°C (-4°F~158°F)
-20°C~70°C (-4°F~158°F)
-20°C~70°C (-4°F~158°F)
25°C;40%~100%RH
±1.0°C/
±1.8°F
±1.0°C/
±1.8°F
Meter automatically shut down after
approx.15 minutes inactivity
-20°C~70°C, 10%RH~90% RH
-20°C~70°C, 10%RH~75% RH
1 x 9V (6F22 / 6LR61 / 1604) / > 30 hours
Dimension (LxWxH) (approx.) mm

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6. LCD display explanation
8. How to use
Battery icon
Data hold icon
MAX icon
MIN icon
Humidity unit icon
Humidity record
Temperature units icon
Temperature record
Timing power off icon
Dew point temperature icon
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A) Open battery cover and install a 9 volt battery in the battery compartment.
B) Power ON: Turn the meter on by pressing " " button for 1 second until the LCD is
lighted, then loose the button.
C) Power OFF: Turn the meter off by pressing and holding "" button for approx. 3
seconds until the LCD is switched off, then loose the button.
D) When the low battery icon " " appears, replace the meter's battery.
E) °C/°F selection
In the measuring mode, press " " button to convert the temperature units °C or °F.
F) " " button function
a) Hold: press " " button once, "HOLD" icon will appear on the LCD, which indicates
the data is freezed. To release the held reading, press the button again.
b) MAX/MIN record
Press and hold " " button for three seconds, MAX icon will appear on the LCD,
which indicates the current maximum reading, press this button again to enter into
MIN mode. Then keep pressing " " for three seconds to exit MAX/MIN mode.
When the battery warning iocon ‘ ’
display on the LCD, Push the battery cover out
and replace 1 pc fresh 9V battery
as the correct polarity. To avoid chemical leakage
from the battery, remove the battery if you are
intended not to use the meter for a while
7. How to replace the battery
G) " " button function
a) Auto power off
Press " " button once to power on or off the meter. When " " icon displayed
on the screen, it indicates that the meter will automatically turn off after approx. 15
minutes of inactivity.
If there is no " " icon displayed on the screen, it indicates the power off function
is disabled.
b) Dew Point Temperature
Press and keep the " " button for three seconds until “DEW” icon appears on the
LCD, which indicates the dew point temperature measurement is conducting. Then
keep pressing this button for three seconds to exit it.
c) Humidity Calibration
In the Power OFF mode, keep pressing " " button then
power the meter on, after the LCD displays, release all the
buttons, the LCD will display as shown in the right:
Press " " button to increase the value or " " button decrease the value, to
adjust the value same as the standard humidity value. After finished calibration,
press " " button to exit it and the calibrated value will be kept automatically.
After power on the meter, press " " the button once, the backlight will be on,
press this button again to turn off it. The backlight will be automatically powered off
in 30 seconds after turning on the backlight.
H) " " button function
9. Notes
This meter has already been calibrated before delivery. Do not revise the calibration
parameters without professional personnel and device.
All products are well calibrated before delivery.Recommended recalibration at 1 year
intervals.
Repairs or servicing not covered in this manual should only be performed by qualified
personnel.
Wipe the unit with a dry soft cloth periodically. Do not use abrasives or solvents on this
instrument.
Remove the battery when the meter is to be stored for long periods of time to avoid
battery leakage. When the battery is low, LCD display “ ” a new battery is needed
to replace.
Do not store or operate the meter in high temperature or humidity.
A)
B)
C)
D)
E)
F)
- Features and specifications are subject to change without prior notice.
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