QUESTemp 46 Series Portable Heat Stress Monitors

TSI QUESTemp 46 Heat Stress Monitor with Waterless Wetbulb Sensor

The 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.

Brilliant Waterless Wet Bulb

• Uses a proprietary algorithm tocalculate the WBGT; eliminates daily wet bulb maintenance.

Stay Times

• QUESTemp° models 46/48N display stay times per ACGIH TLV, U.S. Navy PHEL charts, and U.S. Navy/ Marine Corp. Ashore Flag Conditions; QUESTemp° 46 includes EPRI action limits Choose from various stay time standards to help determine workrest ratios.

Data Logging

• QUESTemp° models 44/46/48N store data for future download and analysis
  Compatible with Quest Detection Management Software DMS
  Analysis of data is a critical step in developing a heat stress management program

Measurement Parameters

• Dry bulb, wet bulb and globe temperatures, relative humidity
• Optional Air velocity
• WBGT (indoor) index
• WBGT (outdoor) index
• Heat index / HUMIDEX
• Temperature reading: Celsius or Fahrenheit
• Data logging intervals: 1, 2, 5, 10, 15, 30 or 60 minutes

Operating Temperature Range

• Sensor assembly: -5° C to 100° C (23° F to 212° F)
• Electronics: -5° C to 60° C (23° F to 140° F)

Data Management

• Detection Management Software DMS
• Optional Thermal comfort indices in accordance with ISO 7730 - Predicted Mean Vote (PMV) and Predicted
• Percent Dissatisfied (PPD)

Power Source (All include AC power adapter wall power cube)

• 9V disposable batteries; hours of battery life: 80
• NiMH rechargeable battery; hours of battery life: 160

Mechanical

• Tripod mount / remote sensor bar - Allows for up to 61 m (~200 ft) long distance measurement
• IP54 water & dust ingress protection rating
• Case size (including mounted sensor assembly) 23.4 x 18.3 x 7.6 cm (9.2” x 7.2” x 3”)
• Weight: 1.2 kg (2.6 lb) with mounted sensor assembly

Sensor Specifications

• Dry bulb sensor - 1000 Ohm platinum RTD - Accuracy and ranges: +/-0.5º C from 0º C to 120º C (+/-0.9º F from 32º F to 248º F)
• Waterless Wet Bulb (Humidity) sensor - Accuracy and ranges: +/-1.1º C (k=2) between 0º C and 80º C (32º F and 176º F)
• Globe sensor - 1000 Ohm platinum RTD - Accuracy and ranges: +/-0.5º C from 0º C to 120º C (+/-0.9º F from 32º F to 248º F)
• Relative humidity sensor - Accuracy and ranges: +/-5% from 20 to 95% (non-condensing)
• Optional Air Velocity Probe - Omni-directional heated thermistor - Accuracy and ranges: +/-(0.1 m/s + 4%) from 0 to 20 m/s