Probe Sensor Test; Hard-Soft Chilling - Gram KPS 90 Mode D'emploi

Probe sensor test

The controller automatically makes a test to verify the proper insertion of the probe
sensor at any activation of a chilling freezing cycle controlled by temperature.
The test is organized in 2 levels – fast and differential: a successfull fast test
excludes the differential test. The duration of the fast test is 50 seconds. If the fast
test is not successful, the differential test is conducted, this lasts for 255 seconds. To
exclude the differential test, set the parameter cE with a value lower than 4 seconds
– to exclude the whole test, set the parameter c7 to 0.
If the test is not successfull, the buzzer is activated (to stop the buzzer, push T9) –
DY1 and DY2 display the indication "o--" alternating with the cabinet temperature and
the decrease of time. Push T6 to manually confirm the proper insertion of the probe
sensor.
Hard - Soft chilling
This mode is only available during a chilling cycle. While chilling, this operation is
divided in 2 parts: a Hard phase (in this phase the compressor works with a very low
setpoint to permit maximizing the temperature chilling speed), and a Soft phase (in
this phase the compressor works with a higher setpoint than the previous setpoint).
To select the Hard-Soft chilling, push T5 when the cabinet is in Standby mode – L3 is
turned on.
To unselect the Hard-Soft chilling, push T1, T2, T3 during Standby mode – L3 is
turned off.
19
76-504-0926