ALFA(NET) 51 PI 24Vdc -50/+50°C
Doc.no.: 150301 version 1.1
Pagina 2 van 8
4
Viewing setpoint
By pushing the SET key the setpoint appears in the display. The decimal point of the last display
starts blinking. A few seconds after releasing the SET key the setpoint disappears and the
measured temperature is shown again in the display.
5
Changing setpoint
Push the SET key and the setpoint appears in the display. Release the SET key. Now push the SET
key again together with the UP or DOWN keys to change the setpoint. A few seconds after releasing
the keys the measured temperature shows again in the display.
6
Status of the relays
By pushing the MODE key the display shows the status of the relays. Each display segment shows
the status of the relay output, showing 0=off and 1=on. The code 110 means relay 1 and 2 are on
and relay 3 is off.
7
Viewing the PI-output percentage
Push the MODE and UP keys simultaneously. Now the PI-output percentage is shown in the display.
8
Viewing the countdown timer for forced heating
Push the MODE and SET keys simultaneously. Now the time in hours is being displayed up to the
next forced heating action. If this time is less than 10 hours, it will show the remaining time in
hours and minutes separated by an decimal point. (representation “h.mm”). At active forced
heating the most right decimal point is lit to indicate this.
9
Adjustment sensor
The temperature sensor can be adjusted by using the Sensor Offset parameter 05.
Indicates the Sensor e.g. 2°C to much, the Sensor Offset has to be decreased with 2°C.
