VDH ALFA D0 DP Manual

1 Function

The ALFA D0 DP Thermometer is a wall mounting thermometer with an range of -10/+90°C
readout per 0,1°C. The thermometer has three 26mm 7-segments red LED displays for readout the
measured temperature, which is measured by an SM811 2-wire temperature sensor. The
thermostat is powered by a 12VDC(120mA) supply.

2 Installation

On the connection diagram of the ALFA D0 DP is shown how to connect the sensor and the supply.
After connecting the power supply to the ALFA D0 DP, a self test function is started. As this test is
finished the measured temperature is shown in the display.

3 Control

The ALFA D0 DP thermometer has for normal use no need for controls. Only for adjustment of the
sensor the unit has four hidden pushbuttons on the front.
These keys are;
SET
π DOWN
∏ UP
MODE
Description: ALFA D0 DP -10/+90°C (01)
Type: Manual
File: Do150429 ALFA D0 DP -10+90C V10
EN.docx
VDH Products BV
ALFA D0 DP
Manual
- view / change set value.
- decrease set value.
- increase set value.
- status key.
-10/+90°C
Pages: 6
By: BVDB
Signed:
Doc.no: 150429
Version: 1.0
Date: 13-05-2015