Schwank Control Touch - Humidity Sensor

Revision: 3.0 Page 50 of 70
10.9.3. Humidity sensor
Type 1 is used [see pin assignment], article number: 70000142
Application
Apparatus for measuring the relative humidity
in industrially and commercially used facilities.
Characteristics
The standard series covers several different
measuring ranges of temperature and humidity
including relative, absolute humidity, dew point,
enthalpy or mix ratio [see configuration table].
The measuring transducer reads the data via
an internal sensor and converts the result into
a standardized analogue output signal
[0-10 V, 4-20 mA].
The capacitive sensor offers longterm stability
and does not need to be recalibrated.
General Information
Power supply
12[20]…34 V AC/DC [Relay]
Connection
3-wired-connection
Connection clamp
Screw clamps, max 1.5 mm²
Switching output
Relay 24 V / 1A, potential free changer
Power consumption
24…44 mA
response time r.h.
8 sec. [63% dew]
Sensor setting up time
60 min.
Signal output
Typ I r.h. / °C [3-wired]
4…20 mA
Analogue output burden
50…500 Ohm
Typ U r.h. / °C [3-wired]
0…10 V
Analogue output load
10...100 kOhm
Housing
Dimensions
87,5x87,5x30 mm
Material
ABS, RAL 9010
Admissible environmental conditions
0…50 °C; 0...98% r.h.
Protection class
IP 20
Sensor
Sensor [r.h. / °C]
capacitive
Measuring range r.h.
0…100 % r.h. [see measuring ranges S1]
Tolerance r.h.
25 °C: +/- 2 % r.h. [20…80 %] + 2% f.s.
Measuring range °C
4 presetted ranges adjustable [see S1]
Tolerance °C
+/- 0,3 °K [5…60 °C] + 1% f.s
Sensor setting up time
60 min
Optional: Sensor °C passive, isolated
NTC1,8k /5k /10k /20k / Precon, KTY81-110,
KTY81-210, LM235Z, DS18B20, Pt100, Pt1000 [Kl. A, B, 1/3DIN], Ni1000, Ni1000TK5
Measuring range/tolerance °C passive
see resistance characteristics