Heat Stress Monitor with Waterless Wet Bulb [QT-46]

The 3M™ QUESTemp°™ 46 Heat Stress Monitor offers high quality heat stress monitoring without the hassle of wet-bulb maintenance. This model also features a convenient stay time display per mutliple standards.

A real-time clock provides reporting and time stamping as well as the ability to measure per stay times in order to manage work/rest regimens. On board data logging along with Detection Management Software (DMS) allows for analysis of data with charting, graphing and reporting options. The QUESTemp° 46 QT-46 (with Alkaline Battery) includes Standard Accessories, (1) Sensor Bar Assembly w/ Calculated Wet Bulb using Humidity Sensor, and 2" Style Globe Sensor.

 

Features

• Kit includes QUESTemp°™ 46 unit with 2" style globe sensor and standard accessories.
• Measure/calculate dry bulb, wet bulb & globe temperature, WBGT indoor/outdoor, relative humidity and Heat Index/Humidex.
• Real time clock provides accurate reporting with time stamping.
• Optional detachable air probe.

 

Specification

Measurement Parameters	Dry Bulb Temperature, Globe Temperature, Heat Index/HUMIDEX, Relative Humidity, WBGT (indoor) Index, WBGT (outdoor) Index, Wet Bulb Temperature, Velocity (optional)
Dry bulb	Accuracy and ranges: +/-0.5 from 0° C to 120° C
Waterless Wet bulb	Accuracy and ranges: +/-1.1° C (k=2) between 0° C and 80° C
Globe sensor	Accuracy and ranges: +/-0.5 from 0° C to 120° C
Relative humidity	Accuracy and ranges: +/-5% from 20 to 95% (non-condensing)
Air Velocity (optional)	Accuracy and ranges: +/ (0.1 m/s + 4%) from 0 to 20 m/s
Data logging intervals	1, 2, 5, 10, 15, 30 or 60 minutes
Time & date stamping with clock and calendar	Yes
Displayed stay times	ACGIH TLV, U.S. Navy PHEL charts, U.S. Navy/Marine Corp. Ashore Flag Conditions
Power Source	9V disposable batteries; hours of battery life: 80 NiMH rechargeable battery; hours of battery life: 160
IP Rating	IP-54
Case size	23.4 x 18.3 x 7.6 cm (including mounted sensor assembly)
Weight	1.2 kg (2.6 lb) with mounted sensor assembly
Standards / Approvals:	Electromagnetic conformance: CE Mark