3
* Setting internal parameters.
Next to the adjustment of the set point, some other internal settings are possible, sensor-
offset, relay function and alarm settings.
By pushing the
DOWN
key more than 5 seconds, you enter the 'internal programming menu'.
In the left display the upper and lower segments are blinking. With the
UP
and
DOWN
keys
the required parameter can be selected (see table for the parameters).
If the required parameter is selected, the value can be read-out by pushing the
SET
key.
Pushing the
UP
and
DOWN
keys, allows you to change the value of this parameter.
If after 20 seconds no key is pushed, the
ALFA(NET) D1 DP
changes to it's normal operation
mode.
* Parameters ALFA(NET) D1-DP.
Para-
meter
Description Parameter
Range
Standard
Value
01
02
03
04
Switching differential
Minimum set point
Maximum set point
Offset temperature sensor
0.1..10.0
C
-10..+90.0
C
-10..+90.0
C
-10.0..+10.0
C
3.0
-10.0
+90.0
0.0
10
11
12
Startup delay after power failure
Relay on at sensor failure
Buzzer on at alarm
0..99 Minutes
0 = No, 1 = Yes
0 = No, 1 = Yes
0
0
0
15
16
17
18
19
20
Function cooling or heating
Switch on delay relay
1)
Switch off delay relay
1)
Parameter 16/17 in seconds or minutes
Minimum on-time relay
Minimum off-time relay
0 = Cool
1 = Heat
0..99
0..99
0 = Seconds
1 = Minutes
0..99 Minutes
0..99 Minutes
0
0
0
0
0
0
90
95
96
97
98
99
Network number
(Only at ALFANET)
Software version
Production year
Production week
Serial number (x1000)
Serial number (units)
1..250
0..255
00..99
1..52
0..255
0..999
1
-
-
-
-
-
1) During delay time the LED ‘on’ is flashing.
