Main Functions; Alarm Signalling - KRATOS 69K-765 Manuel D'entretien, D'installation Et D'utilisation

OPERATION (Units Made After July 2018) (cont.)

2. MAIN FUNCTIONS

2.1 HOW TO SEE THE SET POINT
1. Push and immediately release the SET key, the set point will be showed;
2. Push and immediately release the SET key or wait about 5s to return to normal
visualization.
2.2 HOW TO CHANGE THE SETPOINT
1. Push the SET key for more than 2 seconds to change the Set point value;
2. The value of the set point will be displayed and the "°C" or "°F" LED starts blinking;
3. To change the Set value push the or arrows.
4. To memorize the new set point value push the SET key again or wait 10s.
2.3 HOW TO START A MANUAL DEFFROST
Push the DEF key for more than 2 seconds and a manual defrost will start
2.4 TO LOCK THE KEYBOARD
1. Keep pressed for more than 3s the and keys.
2. The "OF" message will be displayed and the keyboard will be locked. If a key is pressed more
than 3s the "OF" message will be displayed.
2.5 TO UNLOCK THE KEYBOARD
Keep pressed together for more than 3s the and keys till the "on"
message will be displayed.

3. ALARM SIGNALLING

3.1. ALARM RECOVERY
Probe alarms P1" and "P2" start some seconds after the fault in the related probe; they automatically
stop some seconds after the probe restarts normal operation. Check connections before replacing the
probe. Temperature alarms "HA" and "LA" automatically stop as soon as the temperature returns to normal values.
Alarms "EA" and "CA" (with iF=bL) recover as soon as the digital input is disabled.
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