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SPECIFICATIONS
Size 6.2 x 3.75 x 1.75 (inches), 15.8 x 9.5 x 4.5 (cm)
Height with sensors 8.5 (inches), 21.6 (cm)
Weight 12 oz. (350g)
Readout Direct read LCD
Readings · Indoor Wet Bulb Globe Temperature (IN WBGT)
· Outdoor Wet Bulb Globe Temperature (OUT WBGT)
· Wet Bulb (WB)
· Dry Bulb (DB)
· Globe Temperature (GT)
WBGT Value Calculations · WBGT (outdoor) = 0.7 WB + 0.2 GT + 0.1DB
· WBGT (indoor) = 0.7 WB + 0.3 GT
WB = Wet Bulb; GT = Vernon Globe Equivalent Temperature; DB = Dry Bulb)
Reading Resolution 0.1 °C/0.1 °F
Calibrated Ranges 25 °C (77 °F); 45 °C (113°F); 60 °C (140 °F)
Response · Electronics < 3 seconds (provided sensors are acclimatized)
· Sensors (90% accuracy) <2.2 minutes
· Sensors (95% accuracy) <4.5 minutes
Sensors · Globe Temperature (GT) - Construction provides characteristics identical to 6" Vernon Globe
· Dry Bulb (DB) - Ambient air temperature
· Wet Bulb (WB) - Wick-covered sensor with reservoir, wetted with deionized or distilled water
Intrinsic Safety* CSA – Std C22.2 No. 157-M1987, EXIA LR84375
Approved Batteries/Power Source · Rechargeable 9-volt NiMH battery (Varta
™
V7/8H)
· 9-volt non-rechargeable alkaline battery (Duracell
®
MN1604 or Eveready
®
522)
· Operate continuously on 3M supplied charger (AC adapter)
Battery Life Approximately 17 hours – continuous operation
Battery Recharge Time (NiMH) Approximately 14 hours
Operating Temperature Range 0 °C to 65 °C (32 °F to 149 °F)
Instrument Storage Temperature -25 °C to 65 °C (-13 °F to 140 °F)
Accuracy +/-0.4 °C (+/-0.7 °F) of actual temperature at 25.0 °C, 45 °C and 60.0 °C (77.0 °F, 113 °F, 140.0 °F)
@ air speed = 180 fpm minimum.
Analog/Recorder Output 10mV/ °C ± 1mV
Warranty 1 year (See WARRANTY section)
Data Logger (Optional)
Data Logger Optional add-in Data Logger/RS232C Port accessory
Memory Nonvolatile
Data Logging Storage 511 records
Data Logging output Record number, date, time, WB, DB, GT, In-WBGT, Out-WBGT
Data Logging Interval Manually or preselected intervals of 0.5, 1, 2, 5, 6, 10, 20, or 30 minutes
*The RSS-214 and RSS-214DL are intrinsically safe when used with the DB, WB, and GT sensors only.
Varta is a trademark of Spectrum Brands. Duracell is a registered trademark of Proctor & Gamble. Eveready is a registered trademark of Eveready.