EWS-RH
Relative Humidity/Temperature Transmitter
8
Relative Humidity Specifications
Range:
5-95% (non-condensing)
Accuracy @ 25°C:
From 5-20%, ± 4% RH
From 20-80%, ± 3% RH
From 80-95%, ± 4% RH
Repeatability:
± 1% RH
Temp. Compensation Range:
5 to 140°F (-15 to 60°C)
Output:
4-20 mA or 1-5 Vdc (scaled for 0 to
100% RH)
Power:
8-24 Vdc @ 20mA
Max Loop Resistance:
Ohms = (V supply - 8V)/.02 A
RH Time Constant:
100 sec., from 20-90%, 60 sec from
90-20%
Sensor Type:
Thin Film Polymer Capacitor
Temperature Specifications
Range:
5 to 140°F (-15 to 60°C)
Accuracy @ 25°C
In Still Air:
± 1.2°F (0.7°C) @ 25°C
± 2.5°F (1.4°C) across full range
In Moving Air:
± 2.5°F (1.4°C) @ 25°C
± 3°F (1.7°C) across full range
Note: Not recommended for fast moving air applications.
Repeatability:
± 0.5°F (0.3°C)
Output :
4-20 mA or 1-5 Vdc (scaled across
range)
Temp. Time Constant:
(for 63.2% response)
9 sec. in moving air (1 M/sec.),
30 sec. in still air
Power:
8-24 Vdc @ 20 mA
Max Loop Resistance:
Ohms = (V supply - 8V)/.02 A
Sensor Type:
Solid State
General Specifications
Enclosure Material:
Acrylonitrile Butadiene
Dimensions:
79 x 54 x 45mm (3.12 L x 2.12 W x
1.78" H)
Weight:
54 g(.12 lb)
