QUESTemp

TSI Quest QUESTemp



The QUESTemp° 32/34/36 Area Heat Stress Monitors are designed to quickly and accurately evaluate potential heat stress environments.

The QUESTemp° 44/46/48N utilizes a waterless wet bulb sensor designed for working environments where daily instrument upkeep is difficult.
QUESTemp 32/34/36
  • Utilizes WBGT sensing technology; the standard for heat stress management
  • Traditional wet bulb sensing technology
  • Convenient stay time parameters per multiple standards help determine work-rest ratios
  • IP 54 ingress rating helps protect unit from exposure to dirt, dust, oil and water
  • Designed to withstand the rigors of everyday use in demanding environments
QUESTemp 44/46/48N
  • Utilizes WBGT sensing technology; the standard for heat stress management
  • Waterless wet bulb sensing technology eliminates daily maintenance
  • Convenient stay time parameters per multiple standards help determine work-rest ratios
  • IP 54 ingress rating helps protect unit from exposure to dirt, dust, oil and water
  • Designed to withstand the rigors of everyday use in demanding environments
QUESTemp 32/34/36
MeasurementsGlobe, dry bulb, wet bulb, WGBTin, WGBTout, WGBT weighted average (if 3 sensor sets), relative humidity, Heat Index, Humidex.
Temperatures given in Celsius or Fahrenheit.
Data LoggingRecords and prints all measurements at user selected interval of 1, 2, 5, 10, 15, 30, or 60 minutes. 128K bytes of data memory.
LanguagesEnglish, French, Spanish, Italian, German.
HousingDesigned water resistant to a light rain or mist. If rain is frequent, best practice would be to remote the sensor bar and keep the instrument sheltered.
SizeHeight9.2 in. (23.5 cm)
Width7.2 in. (18.3 cm)
Depth3.0 in. (7.5 cm)
Dimensions include mounted sensor assembly.
Weight2.6 lbs. (1.2 kg) with mounted sensor assembly.
Sensor TypesTemperature1000 ohm platinum RTD
HumidityIntegrated circuit with capacitive polymer sensor
AccuracyTemperature±0.5 C between 0 C and 120 C
Relative Humidity±5% between 20 to 95% (non-condensing)
Operating Temperature RangeSensor Assembly-5 C to +100 C
Electronics-5 C to 60 C
Remote Sensor Bars2 x 15-pin D-sub jacks are located on the side of the unit for plugging in one or two additional sensor bars by using remote cables up to 200 feet (61 m). The top sensor bar can also be remote with a cable.
Power Options9V alkaline, 7.2V NiMH rechargeable pack (charged in the unit), or AC adapter wall power cube (AC adapter will operate the unit or recharge the NiMH battery pack).
Battery Life9V alkaline140 hours
Rechargeable Nickel Metal Hydride300 hours
(Adding additional sensor bars reduces battery life.)
Charge Time (NiMH Battery Pack)16 hours (charge in the unit)
Air Probe Accessory (QUESTemp 36 model only)Range0-20 meters per second. 0.1 m/s increments
SensorOmni directional heated thermistor
Accuracy±(0.1 m/s + 4%) of measurement value
Battery Life6-8 hours for fully charged NiMH battery
Charge Time9 hours
Product MarkingsThe year of manufacture is determined by the third character in the instrument's serial number. "A" was manufactured in 2000, "B" in 2001, "C" in 2002, "I" in 2009 and so forth.
Batteries
Non-rechargeable batteryTypeManufacturer
U9VUltralife
MN1604Duracell
522 or EN22 or 6LR61Energizer
A1604 or BR232Rayovac
6LR61 or 6AM6Panasonic
Rechargeable batteryIntegral NiMH battery pack type DC2121The rechargeable battery may only be recharged with class 2 charger, rated 9 VDC, 1 A max.
QUESTemp 44/46
MeasurementsGlobe, dry bulb temperature, wet bulb temperature, % relative humidity, WGBTin, WGBTout, WGBT weighted average (if 3 sensor sets), and Heat Index / Humidex.
Temperatures given in Celsius or Fahrenheit.
Index (QUESTemp 46 only)ACGIH TLV, U.S. Navy PHEL Charts, Flag Conditions for U.S. Navy/Marine Corp. Ashore, and EPRI
Data LoggingRecords and prints all measurements at user selected interval of 1, 2, 5, 10, 15, 30, or 60 minutes. 128K bytes of data memory.
LanguagesEnglish, French, Spanish, Italian, German.
HousingDesigned water resistant to a light rain or mist. If rain is frequent, best practice would be to remote the sensor bar and keep the instrument sheltered.
SizeHeight9.2 in. (23.5 cm)
Width7.2 in. (18.3 cm)
Depth3.0 in. (7.5 cm)
Dimensions include mounted sensor assembly.
Weight2.6 lbs. (1.2 kg) with mounted sensor assembly.
Sensor TypesTemperature1000 ohm platinum RTD
HumidityIntegrated circuit with capacitive polymer sensor
AccuracyDry Bulb and Globe Temperature±0.5 C between 0 C and 120 C
Waterless Wet Bulb TemperatureExpanded measurement uncertainty of 1.1 C (k=2) between 0 C and 80 C
Relative Humidity±5% between 20 to 95% (non-condensing)
Operating Temperature RangeSensor Assembly-5 C to +100 C
Electronics-5 C to 60 C
Remote Sensor Bars2 x 15-pin D-sub jacks are located on the side of the unit for plugging in one or two additional sensor bars by using remote cables up to 200 feet (61 m). The top sensor bar can also be remote with a cable.
Power Options9V alkaline, 7.2V NiMH rechargeable pack (charged in the unit), or AC adapter wall power cube (AC adapter will operate the unit or recharge the NiMH battery pack).
Battery Life9V alkaline80 hours
Rechargeable Nickel Metal Hydride160 hours
(Adding additional sensor bars reduces battery life.)
Charge Time (NiMH Battery Pack)16 hours (charge in the unit)
Air Probe AccessoryRange0-20 meters per second. 0.1 m/s increments
SensorOmni directional heated thermistor
Accuracy±(0.1 m/s + 4%) of measurement value
Battery Life6-8 hours for fully charged NiMH battery
Charge Time9 hours
QUESTemp 48N
MeasurementsGlobe, dry bulb temperature, wet bulb temperature, % relative humidity, and WGBT Index.
Temperatures given in Celsius or Fahrenheit.
Index (displayed stay time with selected index)ACGIH TLV, U.S. Navy PHEL Charts, Flag Conditions for U.S. Navy/Marine Corp. Ashore
Data LoggingData logging mode records and prints all measurements at user selected interval of 1, 2, 5, 10, 15, 30, or 60 minutes.
Event logging mode (1 second record) 128K bytes of data memory.
LanguagesEnglish, French, Spanish, Italian, German.
SensorsDry Bulb Sensor1000 Ohm Platinum RTD
Accuracy and Ranges±0.5 from 0 C to 120 C (±0.9 F from 32 F to 248 F)
Waterless Wet Bulb (Humidity) Sensor
Accuracy and RangesExpanded measurement uncertainty of 1.1 C (k=2) between 0 C and 80 C (32 F and 176 F)
Globe Sensor1000 Ohm Platinum RTD
Accuracy and Ranges±0.5 from 0 C to 120 C (±0.9 F from 32 F to 248 F)
Relative Humidity SensorIntegrated circuit with capacitive polymer sensor
Accuracy and Ranges±5% from 20 to 95% (non-condensing)
Operating Temperature RangeSensor Assembly-5 C to +100 C
Electronics-5 C to 60 C
HousingDesigned water resistant to a light rain or mist. If rain is frequent, best practice would be to remote the sensor bar and keep the instrument sheltered.
SizeHeight9.2 in. (23.5 cm)
Width7.2 in. (18.3 cm)
Depth3.0 in. (7.5 cm)
Dimensions include mounted sensor assembly.
Weight2.6 lbs. (1.2 kg) with mounted sensor assembly.
Remote Sensor BarUsing a cable, the top sensor bar can be setup for remote measurements, up to 200 feet (61 m).
Power9V alkaline
Battery Life9V alkaline80 hours
QUESTemp General Datasheet

QUESTemp 32 Datasheet

QUESTemp 32 User Manual

QUESTemp 34-36 Datasheet

QUESTemp 34-36 User Manual

QUESTemp 44-46 User Manual

QUESTemp 48N User Manual

QUESTemp General Comparison
Natural Wet Bulb ModelsWaterless Wet Bulb Models
QTº32QTº34QTº36 QTº44QTº46QTº48N
Measurement Parameters
Dry bulb, wet bulb and globe temperatures, relative humidity++++++
Air velocityoptionaloptional
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+++++
Event logging mode+
Display languages: Choose from English, French, German, Italian, and Spanish+++
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++++++
Thermal comfort indices in accordance with ISO 7730 Predicted Mean Vote (PMV) and Predicted Percent Dissatisfied (PPD)optionaloptional
Output
RS-232 serial printer / computer interface; Parallel printer interface
Power Source (All include AC power adapter wall power cube)
9V disposable batteries; hours of battery life:140140140808080
NiMH rechargeable battery; hours of battery life:300300300160 160160
Mechanical
D-ring with lanyard attachment. Allows for hands-free monitoring+
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++++++
CE Mark++++++