Heat Stress WBGT Meter Product ID: TM-188D

TM-188D Heat Stress WBGT Meter
-Wide frequency range of 10Hz to 5KHz

-Acceleration, velocity and displacement measurement

-Meets ISO2954 sensor ...

- 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).

Application
TM-188
TM-188D (with datalogger)

The HEAT STRESS WBGT METER is quick-response with accurate measurement for the effects of temperature, humidity, and direct or radiant sunlight.

This instrument is ideal for the athletic trainers, military, occupational (Industrial) hygienists, outdoor worker and the sports medicine specialists; and it's designed according to the regulations mentioned below.

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.

OSHA : Occupational Safety and Health Administration.

JISHA : Japan Industrial Safety and Health Association.



Specification
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

Certificate: