User's Manual Heat Stress WBGT Meter Model HT30
Introduction Congratulations on your purchase of Heat Stress WBGT (Wet Bulb Globe Temperature) Meter. This meter measures and displays Heat Stress Index (WBGT), which is how hot it feels when humidity is combined with temperature, air movement, and direct or radiant sunlight. Black Globe Temperature (TG) monitors the effects of direct solar radiation on an exposed surface. It also measures air temperature (TA) and Relative Humidity (RH).
Meter Operation 1. 2. Press the /SET button to power the instrument on/off. Slide down the protective sensor cover before taking measurements. 3. Press the MODE/button to select the desired display mode: Wet Bulb Globe Temperature Index (WBGT), Air Temperature (TA), Black Globe Temperature (TG), or Relative Humidity (RH). An icon will appear in the display indicating the current selection. To select the preferred temperature unit (°F or °C), simultaneously press and release the MODE/and NEXT buttons.
Auto Power Off The Auto Power Off feature automatically turns the meter off after approximately 20 minutes. To disable this feature, hold down the /SET and MODE/for 2 seconds when powering on the meter. The meter will momentarily display an “n” and enter measuring mode. The meter will reset to auto power off mode when it is powered off. Battery Replacement When it is time to replace the batteries, the low battery indicator corner of the LCD display. To replace the battery: 1.
Specifications Wet Bulb Globe Temperature (WBGT) 0°C to 50°C (32°F to 122°F) WBGT Accuracy Calculated from measured parameters TG Black Globe Temperature range 0 to 80°C (32°F to 176°F) TG Accuracy ±2°C (4°F) Indoor Outdoor ±3°C (5.5°F) TA Air Temperature range 0°C to 50°C (32°F to 122°F) TA Accuracy ±1°C (1.8°F) Relative Humidity (RH) 0 to 100%RH RH Accuracy ±3% (at 25°C, 10 to 95%RH) Resolution 0.1°F/°C; 0.
Know These Heat Disorder Symptoms Heat Disorder Symptoms First Aid Sunburn Redness and pain. In severe cases, swelling of skin, blisters, fever, headaches. Ointment for mild cases if blisters appear. If breaking occurs, apply dry sterile dressing. Serious, extensive cases should be seen by a physician. Heat Cramps Painful spasms usually in muscles of legs and abdomen possible. Heavy sweating. Firm pressure on cramping muscles, or gentle massage to relieve spasm. Give sips of water.
