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User Manual
ALFA 23 DP and
ALFANET 23 DP
Minimum / Maximum
Alarm Thermostat.
VDH doc: 072253
Software: ALFA 13/23/33DP
* Function.
The ALFA(NET) 23 DP is a digital alarm thermostat for wall and panel mounting. The thermostat
watches the minimum and maximum temperature. The ALFA(NET) 23 DP has one relay for both
alarms. The ALFANET 23 DP has a RS 485 network connection so it can be read out and adjusted on
the Alfanet.
* Installation.
On the topside op the ALFA(NET) 23 DP is shown how the sensor, power supply and relay are
connected.
A few seconds after connecting the ALFA(NET) 23 DP to the power supply, the measured temperature
appears in the display.
The alarm relay is a multifunction combined minimum and maximum alarm, at alarm the led 'set high'
will light-up in the display.
* Control.
The ALFA(NET) 23 DP alarm thermostat can be controlled by three push buttons on the front;
SET
- view / change set points and reset of alarm.
UP
- increase a set point.
DOWN
- decrease a set point.
Version v1.1
File: Do072253.wpd
1
Datum: 28-05-2008
Range: See product sticker pro 0,1C
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Summary of Contents for VDH ALFA 23 DP
- Page 1 User Manual ALFA 23 DP and ALFANET 23 DP Minimum / Maximum Alarm Thermostat. VDH doc: 072253 Version v1.1 Datum: 28-05-2008 Software: ALFA 13/23/33DP File: Do072253.wpd Range: See product sticker pro 0,1C * Function. The ALFA(NET) 23 DP is a digital alarm thermostat for wall and panel mounting. The thermostat watches the minimum and maximum temperature.
- Page 2 * Viewing setpoints. Viewing set point of maximum alarm: By pushing the SET key first and then the UP key together the maximum alarm set point appears in the display. The led 'set high' starts blinking. Viewing set point of minimum alarm: By pushing the SET key first and then the DOWN key together the maximum alarm set point appears in the display.
- Page 3 - Replace the sensor. - Settings are lost. Solution:- Reprogram the settings. * Technical details. Model : ALFA 23 DP Alarm Thermostat ALFANET 23 DP Alarm Thermostat with Network Range : -10/+40C, readout per 0,1C (or else see produkt sticker)
- Page 4 * Dimensions. * Connections. * Adress. VDH Products BV Tel: +31 (0)50 - 30 28 900 Produktieweg 1 Fax: +31 (0)50 - 30 28 980 9301 ZR Roden Email: info@vdhproducts.nl The Netherlands Internet: www.vdhproducts.nl...
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