Product Description
Tenmars TM-188D Heat Stress WBGT Meter
Application
In order to measure the WBGT index, you should refer to the following regulations:
-
ISO7243 : Hot environments. Estimation of the heat stress on working man.
-
ISO7726 : Ergonomics of the thermal environment-instruments for measuring physical quantities.
Features Tenmars TM-188D Heat 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.
- LCD display with LED backlight.
- Viewing data records.
- Switch the temperature unit to ℃ or ℉.
- Brass black ball in 50mm diameter.
- WBGT alarm setting.
- Auto power off with disable function.
- Data logging capacity: 12000 records, USB PC serial interface (TM-188D).
- Sampling interval: Max 24 hours; Min 1 Second (TM-188D).
Specification Tenmars TM-188D Heat Stress WBGT Meter
| Wet Bulb Globe Temperature (WBGT) | ||||
| Unit | Range | Resolution | Accuracy@15~40°C | |
| Indoor &
outdoor without sunlight |
°C | 0°C~59.0°C
|
0.1°C | ±1.0°C |
| °F | 32.0°F~138.0°F
|
0.1°F | ±1.8°F | |
| outdoor
with sunlight
|
°C | 0°C~56.0°C
|
0.1°C | ±1.5°C |
| °F | 32.0°F~132.0°F
|
0.1°F | ±2.7°F | |
| *Indoor & outdoor without sunlight :WBGT=(0.7xWET)+(0.3xTG)
Outdoor with sunlight : WBGT=(0.7xWET)+(0.2xTG)+(0.1xTA) |
||||
|
Air temperature (TA) |
|||
| Unit | Range | Resolution | Accuracy@15~40°C |
| °C | 0°C~50.0°C | 0.1°C | ±0.8°C |
| °F | 31°F~122.0°F | 0.1°F | ±1.5°F |
|
Black globe temperature (TG) |
|||
| Unit | Range | Resolution | Accuracy@15~40°C |
| °C | 0°C~80.0°C | 0.1°C | ±0.6°C |
| °F | 32°F~176.0°F | 0.1°F | ±1.1°F |
| Relative humidity (%RH) | |
| Range | 1%-99% |
| Accuracy
|
±3.0%RH (20%~80%)
±5.0%RH (<20% ,>80%) |
| Resolution | 0.1% |
| Response time | <4 sec |
| Dew point temperature (DEW) | ||
| Unit | Range | Resolution |
| °C | -35.3°C~48.9°C | 0.1°C |
| °F | -31.5°F~120.1°F | 0.1°F |
| The value is calculated from the RH and air temp | ||
| Wet bulb temperature (WET) | ||
| Unit | Range | Resolution |
| °C | -21.6°C~50.0°C | 0.1°C |
| °F | -6.9°F~122.0°F | 0.1°F |
| The value is calculated from the RH and air temp | ||
Tenmars TM-188D – Datasheet
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