INSTRUCTION
i
Read this instruction before installation
and wiring of the product
HTDT2500(-420)
1
HTDT2500(-420)
Duct mounted humidity/temperature
transmitter
HTDT2500(-420) are duct mounted humidity and temperature
transmitters for relative humidity and temperature measurement in air
handling systems. Available with 0...10 V DC (HTDT2500) or 4...20
mA (HTDT2500-420) output signal, and passive PT1000 signal.
Installation
Mount the transmitter in the duct using either the screw pockets in
the enclosure or the mounting flange provided. Open the cover by
carefully depressing the two plastic latchhooks and at the same time
pulling the lower edge of the cover outwards. When mounted in con-
taminated environments the transmitter’s membrane filter should be
exchanged for a sintered brass filter.
Wiring
Connect supply voltage and output signals according to the diagram for
the unit being installed.
Connect passive PT1000 signal either between terminals 6-7 or 5-8.
Technical data
Supply voltage:
HTDT2500: 24 V AC ±20 % or 15...35 V DC
HTDT2500-420: 20...35 V DC (R
L
< 500 Ω), 11...35 V DC (R
L
< 50 Ω)
Output signals:
Humidity: 0...10 V DC (4...20 mA), corresponding to 0...100 % RH
Measuring range: 10...95 % RH
Accuracy at 20°C: ±2.5 %
Temperature range: 0...10 V DC (4...20 mA), corresponding to 0...50°C.
Accuracy at 20°C: ±0,3 K.
PT1000 (
DIN class A, according to IEC751
)
External load impedance:
HTDT2500: Min. 10 kΩ.
HTDT2500-420: Max. 500 Ω.
Contact
AB Regin, Box 116, 428 22 Kållered, Sweden
Tel: +46 31 720 02 00, Fax: +46 31 720 02 50
www.regin.se, [email protected]
10532E JUL
18
EN
V+
GND
RH 0...10 V DC
2
3
Temp. 0...10 V DC
HTDT2500
V+
Temp. 4...20 mA
HTDT2500-420
RH 4...20 mA
1
1
2
3
4
7
6
8
5
85
90
35
235
20-200
Ø12
100
CE
This product carries the CE mark. More information is available
at www.regincontrols.com
