PST... and PST...-R
ELECTRONIC PRESSURE SWITCHES
PRODUCT DATA
FEATURES
Housing and back polybutylene terephtalate (PBT)
Max. ambient temp. -20...+60 C
Storage temperature -35...+80 C
Temperature, medium -20...+100 C
Relative air humidity 0...95%, non-condensing
Accuracy, total 0.5% of final value
Medium temp. drift 0.3% per 10 K (0.5% per 10 K
in case of 250/400/600 mbar)
Total weight 380 grams
Parts in contact with medium
High-pressure versions 1.4571 + 1.4542
Low-pressure / flush 1.4571 + 1.4435
Process connection
Manometer connection G1/2" external thread
Flush connection G3/4" external thread
Electrical connection
PST series 5-prong M12 plug, A-coded as per
DIN IEC 60947-5-2
PST...-R series Extra 3-prong M12 plug
Protection class II as per EN 60335-1
Protection type IP65 as per EN 60529
Climate class C as per DIN IEC 60654
Power supply 15...36 Vdc, max. 100 mA
EMC compatible as per EN61326/A1
Switch outputs (all versions)
Open-Collector outputs Two; configurable as high-side/
low-side or as push-pull switches,
max. load: 250 mA / 15...36 Vdc
Reaction time 30 ms
Switching difference (SP and RP) configurable
Relay outputs (PST...-R series)
Contact type 1 switch-over contact
Min. electrical lifetime 250,000 switching cycles
Switching performance, gold contacts (AgSn0 +Au)
2
APPLICATION
AC1 (resistive) 1.5 VA (24 Vdc / 60 mA, 230 Vac /
Honeywell FEMA's PST and PST...-R series Electronic
6.5 mA)
Pressure Switches require adjustment (configuration and
AC15 (inductive) unsuitable
parameterization) in only two modes (the basic mode and
Max. switch-on current 60 mA for < 5 ms
the expert mode) and are suitable for an extremely wide
Min. switching perf. 50 mW (either > 5 V or > 2 mA)
range of applications, including the precision-adjustment
Switching performance, silver contacts (AgSn0 )
2
and monitoring of system pressures in the field of plant
AC1 (resistive) 690 VA (230 Vac / 3 A)
construction, fluidics, process technology, and pneumatics,
AC15 (inductive) 230 VA (230 Vac / 1 A)
as well as in the monitoring and control of pumps and
Max. switch-on current 30 A for < 5 ms
compressors.
Min. switching perf. 500 mW (> 12 V or > 10 mA)
Due to their monitored sensors with a standardized warning
Diagnostic output
output, these devices are suitable for use in manufacturing
Output configuration warning output (plug 2),
lines in the automotive industry as well as in the area of
max. 20 mA, 15...36 Vdc
machine tool construction. These switches provide
Transmitter output (analog output)
sufficient accuracy (0.5% of final value) for measurement
Voltage / current 0...10 V and 4...20 mA,
monitoring in many laboratory applications.
configurable in expert mode
Transient response approx. 300 ms
U.S Registered Trademark
Copyright 2009 Honeywell Inc. All Rights Reserved EN0B-0346GE51 R0609 PS, PST, AND PST...-R ELECTRONIC PRESSURE SWITCHES
VARIANTS
The electronic pressure switches are available in two
variants, easily distinguishable by the number of M12 plugs
present on the rear side.
PST... Series PST...-R Series
The devices of this series provide both switching Like PST... Series devices, the devices of this series
functionality and transmitting functionality. provide switching and transmitting functionality, but also
relaying functionality.
plug 2:
power supply,
plug 2:
AOUT, and WARN
power supply,
AOUT, and WARN
plug 3:
switch-over
contact relay
plug 1:
power supply, plug 1:
OUT1, and OUT2
power supply,
OUT1, and OUT2
Fig. 1. PST... Series, rear view of housing
Fig. 2. PST...-R Series, rear view of housing
EN0B-0346GE51 R0609 2