4
* Function diagram.
* Adjustment sensor.
The sensor can be adjusted by using the Sensor Offset (parameter 04). Indicates the
ALFA(NET) D1 DP
e.g. 2.1
C to much, the Sensor Offset has to de decreased with 2.1
C.
* Technical details.
Type
: ALFA D1-DP cool/heat thermostat
ALFANET D1-DP cool/heat thermostat with network
Range
: -10/+90
C, readout per 0,1
C
Supply
: 12 Vdc
(max. 120mA)
Relay
: Contact SPDT (C/NO/NC, Max. 230Vac/2A 30Vdc/2A, cos phi=1)
Communication
: RS 485 Network, 2x twisted pair shielded min. 0,5mm2, maximum
length 1KM
(+12V/A/B/0V, only at ALFANET model)
Display
: 3-digit 7 segments display with 26 mm LED’s green
Indications
: 10 mm red ‘Alarm’ LED, 10 mm green ‘ON’ LED
Control
: by pushbuttons on the front.
Front
: Polycarbonate IP65
Sensor
: SM 811 2-wire PTC temperature sensor
(1KOhm @ 25
O
C)
Dimensions
: 200 x 112 x 31 mm (hwd)
Mounting
: 2x Headed screw on distance of 180 mm on housing mid
- Provided with memory protection during power failure.
- Connection with screw terminals on the backside.
- Equipped with self test function and sensor failure detection.
- Special version on request available.
