1592031000 Univ-R4 GB - r1.1 - 2012.07.23 Universal-R
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17.
MOUNTING
The Universal-R should be mounted in a panel, in a 29 x 71 mm hole, and fixed using the special brackets supplied. Ambient temperature
for correct operation is 0 to 50°C. Avoid places subject to strong vibrations, corrosive gases, excessive dirt or humidity (20 to 85% non-
condensing RH is the recommended working range). Make sure air can freely circulate through the cooling holes slots at the rear side of
the controller.
18.
ELECTRICAL CONNECTIONS
The instrument is provided with screw terminal block to connect cables with a cross section up to 2.5 mm
2
. Before connecting cables make
sure the power supply complies with the instrument’s requirements. Separate the probe cables from the power supply cables, from the
outputs and from the power connections. Do not exceed the maximum current rating for each relay; in case of heavier loads use a suitable
external relay.
19.
PROBES
It is recommended to place the thermostat probe away from rapid air streams to correctly measure the average room temperature. Place
the defrost termination probe among the evaporator fins in the coldest place, where most ice is formed, far from heaters or from the
warmest place during defrost, to prevent premature defrost termination.
20.
TECHNICAL DATA
Housing:
Self extinguishing ABS
Size:
Frontal 32x74 mm; depth 70 mm
Mounting:
Panel mounting in a 71x29 mm panel cut-out
Frontal protection:
IP65
Connections:
Screw terminal block
2.5 mm
2
wiring
Power supply:
12Vac/dc, -10% +15%
230Vac, -10% +15%
Power absorption:
4 VA max
Display:
3 digits, red LED, 14.2 mm high
Inputs:
a maximum of 3 temperature probes, PTC or NTC type.
Probes (supplied):
2 x NTC, range [-40 to 105°C] with 2 metre cables
Relay outputs:
Amps Resistive (Inductive)
Compressor:
SPDT relay 8(3) A, 250Vac
Defrost:
SPDT relay 8(3) A, 250Vac
Fans:
SPST relay 7(2) A, 250Vac
Alarm:
SPDT relay 8(3) A, 250Vac
Other output:
Buzzer for acoustic signalling of alarms
Data storing:
Non-volatile memory (EEPROM)
Ambient temperature:
0 to 50°C (32 to 122°F)
Ambient humidity:
20 to 85% (no condensing)
Storage temperature:
-30 to 85°C (-22 to 185°F)
Operating range:
PTC: -50 to 150°C (-58 to 302°F); NTC: -50 to 110°C (-58 to 230°F)
Resolution:
0.1°C or 1°F (selectable)
Accuracy at 25°C:
(range -40 to 50°C)
0.5 °C
1 digit
