Sensor Calibration (Parameters E15 And E16) - Honeywell PCR-300 Installation And Operating Instructions Manual

E15 Sensor calibration T1
(cold store)
E16 Sensor calibration T2
(evaporator)
E17 Operation of
compressor relay
if cold store sensor T1
is defective
E18 "On" time at E17
E19 "Off" time at E17
To exit from the programming mode:
Press the key after inputting the last level.

7.2 Sensor calibration (parameters E15 and E16)

The cold store and evaporator sensors can be calibrated.
Note:
How to proceed: Measure the temperature at the sensor concerned
–5 to +5 K
–5 to +5 K
0 = Relay de-energizes
1 = Relay is perma-
2 = Alternately ener-
1 to 99 mins.
1 to 99 mins.
An additional resistance of 7
caused by the extension of the sensor cable,
results in a change in the temperature display by
+1K.
with a calibrated thermometer or submerge the
sensor in well mixed iced water (0 °C).
Compare the measured temperature with the
temperature displayed on the unit display.
If the measured temperature is lower than the
one displayed, set the negative difference as the
programming value
(e.g. - 2 K).
If the measured temperature is higher than the
one displayed, set the positive difference as the
programming value
(e.g. 2 K).
The temperature display is then corrected by the
set value.
15
nently engergized
gized/de-ener-
gized according to
time set in E18
and E19.
in each case,
0 K
0 K
2
15 mins.
15 mins.