RH350/355 V1.7 11/04
2
Specifications
Function
Range and Resolution
Accuracy
Humidity
0.0 to 100.0% RH
±3% RH (10 to 90%)
@ 23
°
C
Temperature (air)
-4.0 to 122.0
o
F (-20 to 50
o
C) ±1.8
o
F (±1
o
C)
Temperature (external) T1, T2
-328 to 2250
o
F (-200 to 1370
o
C)
±0.3% rdg or
±(1.8
o
F)1
o
C
Display
Triple LCD
Sensor Type
Humidity: Precision capacitance sensor
Internal Temperature: Thermistor
External Temperature: K-Type Thermocouple
Response Time
60 seconds typical
Dew Point
-90.4 to 122.0
o
F (-68 to 50
o
C) (calculated from RH and Air
temperature measurements)
Wet Bulb
-6.88 to 122.0
o
F (-21.6 to 50
o
C) (calculated from RH and Air
temperature measurements)
Low Battery Indicator
Yes
Overrange Indicator
E2 (air) E5 (T1), E8 (T2)
Underrange Indicator
E3 (air),
E6 (T1), E9 (T2)
Operating Conditions
-4 to 122
o
F (-20 to 50
o
C); < 99% RH non-condensing
Storage Conditions
-40 to 185
o
F (-40 to 85
o
C); <99% RH non-condensing
Power Supply
4 x 1.5V ‘AAA’ batteries
Battery Life
Approx. 300 hours
Dimensions / Weight
9 x 2.2 x 1.7” (230 x 57 x 44mm); 5.3 oz. (153g)
Meter Description
1.
Humidity Sensor & Air Temperature Sensor
2.
Triple LCD Display
3.
On/Off; Set Mode
4.
Min/Max/Average; Reset Min/Max
5.
Air, T1, Air-T1, Dew Point
6.
T1 probe input
7.
T2 probe input
8.
T1-T2, T2, T1-Dew Point, Wet Bulb
9.
Store Current Reading; Backlight
10. Hold; Recall Mode
11. RS232
port
Note: The battery compartment is located
on the rear of the instrument
