
PSW2000.qxp 6/12/2008 10:37 AM Page 
1. Product Description
Dimensions (in mm)
PSW3000
Intended Applications
-The dual pressure switch monitors system pressures and has up to two switching outputs and one analog output.
-According to DESINA standard
-The instruments must only be installed in systems where the maximum pressure Pmax is not exceeded (according to the values on the type label).
-Attention: This device is not designed to be used as the only safety relevant element in pressurized systems according PED 97/23/RC
2. Starting operations
Only install or uninstall the device when depressurized!
-Mount the pressure switch from bottom to the fitting with a wrench hex 36 (1/4 ) resp. 19 with 45 Nm torque.
-Electrical connection depends on the type of pressure switch (see type label) according to the chart below.
Electrical connections
Plug  | Model with 1  | Model with 2  | Model with 1 switching  | 
M 12 x 1,  | switching output  | switching outputs  | output and 1 analog output  | 
  | (DESINA)  | 
  | |
  | 
  | 
  | 
  | 
Pin 1  | (15...32 V DC)  | (15...32 V DC)  | (15...32 V DC)  | 
Pin 2  | -  | SP2 (0,5 A max.)  | analog  | 
Pin 3  | 0 V  | 0 V  | 0 V  | 
Pin 4  | SP1 (0,5 A max.)  | SP1 (0,5 A max.)  | SP1 (0,5 A max.)  | 
3