EVCO S.p.A. | EVHP523 & EVHTP523 | Instruction sheet ver. 1.0 | Code 104HTP523A104 | Page 1 of 2 | PT 30/19
EVHP523 & EVHTP523
Humidity and
temperature transducer
EN
ENGLISH
-
5... 95 % humidity working range
-
-10... 70 °C temperature working range
-
one 4-20 mA output (EVHP523), two 4-20 mA outputs (EVHTP523).
Purchasing code
Kind of transducer
Output
EVHP523
humidity
1 x 4-20 mA
EVHTP523
humidity and temperature
2 x 4-20 mA
1
MEASUREMENTS AND INSTALLATION
Measurements in mm (inches). Wall mounting, fixing clip and screw provided.
INSTALLATION PRECAUTIONS
-
Install the device as shown in the picture
-
Ensure that the working conditions are within the limits stated in the TECHNICAL
SPECIFICATIONS section
-
Do not install the device close to heat sources, equipment with a strong magnetic field,
in places subject to direct sunlight, rain, damp, excessive dust, mechanical vibrations
or shocks
-
Clean the protective cap periodically (unscrew the cap from the main part of the device
and clean it using low pressure compressed air or distilled water).
2
ELECTRICAL CONNECTION
N.B.
- the temperature transducer works provided that the humidity one is correctly
powered
- to reduce any electromagnetic interference locate the power cables as far away as
possible from the signal cables.
4.1
Electrical connection EVHP523
Transducer calibration:
0... 100 % of relative humidity; they correspond respectively to 4 and to 20 mA.
4.2
Electrical connection EVHTP523
Humidity transducer calibration:
0... 100 % of relative humidity; they correspond respectively to 4 and to 20 mA.
Temperature transducer calibration:
-30... 70 °C; they correspond respectively to 4 and to 20 mA.
PRECAUTIONS FOR ELECTRICAL CONNECTION
-
If the device has been moved from a cold to a warm place, the humidity may have
caused condensation to form inside. Wait about an hour before connecting it to the
controller
-
Disconnect the device from the controller before doing any type of maintenance
-
For repairs and for further information, contact the EVCO sales network.
3
FIRST-TIME USE
1.
Install following the instructions given in the section MEASUREMENTS AND
INSTALLATION.
2.
Connect the device to the controller as shown in the section ELECTRICAL CONNECTION.
3.
Power up the controller.
4
TECHNICAL SPECIFICATIONS
Container:
Plastic grey.
Measurements (main part):
Ø 20.0 x 185.0 mm (13/16 x 7 1/4 in).
Mounting methods:
Wall mounting, fixing clip and screw included.
Degree of protection provided by the
covering:
IP65 (main part).
Connection method:
Terminals.
Operating temperature:
From -10 to 70 °C (from 14 to 158 °F).
Temperature sensor accuracy:
±1.5 °C.
Storage temperature:
From -25 to 70 °C (from -13 to 158 °F).
Operating humidity:
Relative humidity without condensate from 5
to 95 %.
Humidity sensor accuracy:
±3 % between 5 and 80 %, ±5 otherwise.
Compliance:
RoHS 2011/65/CE
WEEE 2012/19/EU
REACH (EC) Regulation no. 1907/2006
EMC 2014/30/UE.
Power supply:
8... 24 VDC.
Reverse polarity protection:
Incorporated.
Maximum load:
[(power supply voltage - 8 VDC) / 0,02 A] ±
50 Ohm
Outputs:
1 x 4-20 mA in EVHP523
2 x 4-20 mA in EVHTP523.
