User guide
24-4 
Electronic Pressure Switches
http://products.ecc.emea.honeywell.com/europe
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Electronic Pressure switch, with LED display for the field of plant construction, fluidics, process 
technology, and pneumatics, as well as in the monitoring and control of pumps and compressors.
Models available with the following output types:
• all models: switch output open collector; 14..36 Vdc, 250 mA
• PST -series: transmitter output; 0..10 Vdc or 4..20 mA
• PST..R -series: relay output with gold plated SPDT contact
Switch + Transmitter output, PST-models
Electronic Pressure switch for gas, low viscosity liquid (SmartPress) 
Protection class IP65
Housing material Polybutylene terephtalate (PBT)
Media temp. -20 ... 100
o
C
Media temp. limit Higher temperatures are possible, provided that the limit is 
safeguarded by suitable measures (e.g. water tube trap)
Ambient temperature -20 ... 60
o
C
Switch function/capacity PST..R-models with relay contact output, 1 x SPDT, material silver 
gold plated. Capacity resistive: 24 Vdc, 60 mA / 230 Vac, 6,5 mA. With 
bigger loads, the gold layer will disappear, the capacity with the silver 
contacts is: 230 Vac 3(1) A.
Sensing element material 1.4571 + 1.4542
Additional description Applicable parameter settings:
• switching Set / Reset points
• filters
• analog output range
• electrical drag indicator
• Applicable configurations:
• Max-Min, Window monitor
• Analog output-signal
• Pressure unit
• Simulation mode
Pressure range Max. pressure Output signal Kind of pressure
Type
bar bar
-1 ... 1 6 0..10Vdc / 4..20 mA + switch vacuum, relative
PSTV01RG12S
0 ... 0,25 1 0..10Vdc / 4..20 mA + switch overpressure, relative
PSTM250RG12S
0 ... 0,4 2 0..10Vdc / 4..20 mA + switch overpressure, relative
PSTM400RG12S
0 ... 0,6 2 0..10Vdc / 4..20 mA + switch overpressure, relative
PSTM600RG12S
0 ... 1,6 6 0..10Vdc / 4..20 mA + switch overpressure, relative
PST002RG12S
0 ... 4 12 0..10Vdc / 4..20 mA + switch overpressure, relative
PST004RG12S
0 ... 10 30 0..10Vdc / 4..20 mA + switch overpressure, relative
PST010RG12S
0 ... 25 75 0..10Vdc / 4..20 mA + switch overpressure, relative
PST025RG12S
0 ... 60 180 0..10Vdc / 4..20 mA + switch overpressure, relative
PST060RG12S
0 ... 100 300 0..10Vdc / 4..20 mA + switch overpressure, relative
PST100RG12S
0 ... 250 500 0..10Vdc / 4..20 mA + switch overpressure, relative
PST250RG12S
0 ... 600 1000 0..10Vdc / 4..20 mA + switch overpressure, relative
PST600RG12S
0 ... 2 6 0..10Vdc / 4..20 mA + switch absolute
PST002AG12S
0 ... 10 30 0..10Vdc / 4..20 mA + switch absolute
PST010AG12S










