Ascon Tecnologic - TRH514 - USER MANUAL - PAG. 2
3.3
Electrical Connections
General notes on electrical connections
• The probe cables must be kept separated from high
power voltage wiring;
• If shielded cables are used, the protection shield must be
connected to ground at one side only.
3.3.1
Electrical wiring
VDC
GND
Out-RH
Out-T
Control
i
Power supply voltage:
9 ÷ 30 VDC;
Current consumption:
20 mA + 20 mA max.;
Reverse polarity protection:
Diode.
Sensor reading
The output current is normally passed through the input
resistance of the measuring instrument and transformed into
a voltage that can be read by the instrument itself.
4. PROBLEMS AND MAINTENANCE
4.1
Cleaning
We recommend to clean the instrument with a slightly wet
cloth using water and not abrasive cleaners or solvents only.
Should it be necessary to remove the sensor, avoid to me-
chanical stress it and in particular avoid touching the humid-
ity sensor.
4.2
Disposal
The appliance (or the product) must be
disposed of separately in compliance
with the local standards in force on
waste disposal.
5. WARRANTY AND REPAIRS
The instrument is under warranty against manufacturing
flaws or faulty material, that are found within 18 months from
delivery date. The warranty is limited to repairs or to the
replacement of the instrument.
The eventual opening of the housing, the violation of the instru-
ment or the improper use and installation of the product will
bring about the immediate withdrawal of the warranty effects.
In the event of a faulty instrument, either within the period of
warranty, or further to its expiry, please contact our sales de-
partment to obtain authorisation for sending the instrument
to our company.
The faulty product must be shipped to Ascon Tecnologic with
a detailed description of the faults found, without any fees or
charge for Ascon Tecnologic, except in the event of alterna-
tive agreements.
6. TEHNICAL DATA
6.1
Sensor characteristics
Sensor type:
CMOS-C.
6.1.1
Relative humidity
Parameter
Condition
Typical
Units
Accuracy/Tolerance
Typical
±1.8
%RH
Max.
See figure %RH
Repeatability
High
0.08
%RH
Medium
0.15
%RH
Low
0.25
%RH
Resolution
-
0.01
%RH
Hysteresis
-
±1
%RH
Operative range
Extended
0 ÷ 100
%RH
Response time
t
63%
6
s
Long-term drift
Typical
<0.25
%RH/year
Humidity measurement tolerance
Relative Humidity (%RH)
Temperature (°C)
|typical
%RH|
0
10
20
30
40
50
60
70
80
20
10
0
30
30
40
60
80
70
90
100
1.8
3
2
2
3
