Ascon Tecnologic - TRH52 - OPERATING INSTRUCTIONS - PAG. 3
5. PROBLEMS AND MAINTENANCE
5.1
Measurements errors
Reading errors can occur if settling time is too short, or be
caused by steam, sprayed water, air drafts, direct exposure
to sunlight, or presence of condensation on the sensor.
To obtain accurate measurements the sensor should be left
to settle in the existing atmosphere for some time.
To reduce the possibility of condensation on the humid-
ity sensor place the probe in ventilated position and where
there is not a quick and elevation variation of temperature
(from cold to warm).
5.2
Cleaning
It is recommended to clean the box only with a cloth welted
with water or with a detergent neither abrasive nor contain-
ing solvents.
Should be necessary to remove the protective cap, do not
cause any mechanical stress to the sensors and absolutely
avoid touching the Humidity sensor surface.
5.3
Disposal
The appliance (or the product) must be
disposed of separately in compliance
with the local standards in force on
waste disposal.
6. WARRANTY
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 in-
strument 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.
7. TECHNICAL DATA
7.1
Electrical characteristics
Power supply
: 9... 28 Vdc [Use only SELV type CLASS 2
power supplies (
≤
15 W)];
Power consumption
: 20 mA max.;
Maximum load resistance for 4... 20 mA output
:
150
Ω
at 9 Vdc;
Software class
: A;
Relative humidity sensor type
: Current loop;
Relative humidity signal output
: 4... 20 mA (0... 100%RH);
Temperature sensor type
: NTC;
Temperature signal output
: 4... 20 mA (-40... +60°C).
7.2
Mechanical characteristics
Housing
: Plastic;
Dimensions
: 80 x 80 mm, depth 50 mm;
Weight
: 160 g approx.;
Mounting
: Wall mounting (with sensor towards the bottom);
Connections
: Screw terminals with 5 mm pitch;
Connection wires
: 0.32... 2.0 mm (AWG 22…14);
Recommended multipolar cable
: Cable Ø6.0... 12.5 mm
(for UL 9... 12 mm/0.35... 0.47 in.);
Enclosure rating
: IP 65;
Action type
: 1;
Environmental rating
: Internal usage, Type 1 enclosure;
Pollution degree
: 2;
Over-voltage category
: I;
Rated impulse voltage
: 330 V;
Period of electrical stress on the insulating parts
: Long
period (IEC EN 60730);
Shipment and storage temperature
: -40... +80°C.
Storage humidity
: 0... 100 RH% (without icing/condensation).
