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17
12 Technical data
Mains voltage/frequency:
Controller: 12 V AC ±10%, 50/60 Hz,
12 V DC ± 10%
Trans-
Primary:
230 V AC ±10%,
former:
50/60 Hz,
Secondary: 12 V AC.
Rated wattage:
2.5 watts
Display:
3-digit, 7-segment, red LED, 14.2 mm
Resolution:
1 K
Measuring range:
–55 to +50 °C
Outputs:
1 relay with changeover contact 8 A,
230 V AC, resistive load
(cooling)
1 relay with N.O. contact, 8 A,
230 V AC, resistive load
(defrost heating)
1 relay with N.O. contact, 8 A,
230 V AC, resistive load
(fan control)
only PCR-410:
1 relay with N.O. contact, 8 A,
230 V AC, resistive load
(remote alarm control)
Caution: The total current via the common relay connection,
terminal no. 1, must not exceed 10 A.
Control performance:
Two-step
Display accuracy:
±0,5 °C, ±1 digit, at 25 °C
Operating conditions:
0 to 50 °C, 30 to 85 % R.H.,
excluding dew
Storage temperature:
–20 to +80 °C
Data back-up:
Non-volatile memory (EEPROM)
Selection of
DIP switch, at side of unit
emergency setpoint:
(off = +4 °C / on = –18 °C)