Product Description
Tenmars TM-188D Head Stress WBGT Meter
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Application
In order to measure the WBGT index, you should refer to the following regulations:
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ISO7243 : Hot environments. Estimation of the heat stress on working man.
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ISO7726 : Ergonomics of the thermal environment-instruments for measuring physical quantities.
Features Tenmars TM-188D Head Stress WBGT Meter
-
Quick-response capacitance sensor.
Accurate measurement for wet bulb globe
temperature(WBGT), black globe
temperature(TG),humidity(%RH), air
temperature(TA),wet bulb(WET) and dew point(DEW). -
Max/Min and data hold.
-
Low battery indication “ ”.
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LCD display with LED backlight.
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Single data record (TM-188 is able to record 50 data).
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Viewing data records.
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Switch the temperature unit to ℃ or ℉.
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Brass black ball in 50mm diameter.
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WBGT alarm setting.
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Auto power off with disable function.
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Interface: USB PC serial interface.(TM-188D)
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Data logging capacity :12000 records.(TM-188D)
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Sampling interval: Max 24 hours; Min 1 Second.(TM-188D)
Specification Tenmars TM-188D Head Stress WBGT Meter
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Dimensions:300x70x50mm(length x width x height).
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Weight: Approximately 220 grams.
Electrical Specifications (23℃±5℃)
|
Wet bulb globe temperature (WBGT)
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||||
|
Unit
|
Range
|
Resolution
|
Accuracy
@15~40°C
|
|
|
indoor&Outdoor
without sunlight |
°C
|
0~59.0
|
0.1
|
±1.0
|
|
°F
|
32.0~138.0
|
0.1
|
±1.8
|
|
|
Outdoor With sunlight
|
°C
|
0~56.0
|
0.1
|
±1.5
|
|
°F
|
32.0~132.0
|
0.1
|
±2.7
|
|
|
※indoor & outdoor without sunlight:WBGT = (0.7×WET)+(0.3×TG)
Outdoor with sunlight:WBGT=(0.7×WET)+(0.2×TG)+(0.1×TA)
|
||||
|
Air temperature (TA)
|
|||
|
Unit
|
Range
|
Resolution
|
Accuracy
@15~40°C
|
|
°C
|
0~50.0
|
0.1
|
±0.8
|
|
°F
|
32.0~122.0
|
0.1
|
±1.5
|
|
Black globe temperature (TG)
|
|||
|
Unit
|
Range
|
Resolution
|
Accuracy
@15~40°C
|
|
°C
|
0~80.0
|
0.1
|
±0.6
|
|
°F
|
32.0~176.0
|
0.1
|
±1.1
|
|
Relative Humidity (%RH)
|
|
|
Measurement Range
|
1%~99%
|
|
Accuracy
|
±3.0%RH(20~80%)at 25°C
±5.0%RH(<20%,>80%) at 25°C
|
|
Resolution
|
0.1%
|
|
Dew point temperature (DEW)
|
||
|
Unit
|
Range
|
Resolution
|
|
°C
|
-35.3~48.9
|
0.1
|
|
°F
|
-31.5~120.1
|
0.1
|
|
The value is calculated from the RH and Air temperature.
|
||
|
Wet bulb temperature (WET)
|
||
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Unit
|
Range
|
Resolution
|
|
°C
|
-21.6~50.0
|
0.1
|
|
°F
|
-6.9~122.0
|
0.1
|
|
The value is calculated from the RH and air temperature.
|
||
Accessories
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User’s Manual
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006P 9V battery
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Carrying
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USB cable(TM-188D)
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AC100~240V DC9V/0.5A(9mm)(TM-188D)
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Installation disk(TM-188D)
Tenmars TM-188D Datasheet
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