Pressure
Pressure switch
Model PS-601, 602
WIKA data sheet PV 35.60
Applications
■ Pumps and compressors for lubrication
■ Industrial Hydraulics
■ Special purpose machine
■ Power generation
Special features
■ Adjustable switch differential to realise flexible on/off control
■ Robust aluminium enclosure
■ Switch point repeatability ±1% of FSR for reliable switching
■ Upto 2 possible positions for electrical connection
■ High-quality micro switches with long service life
Fig.: Left: Fixed differential
Right: Adjustable differential
Description
The model PS-601, 602 pressure switch has been High static pressure with diaphragm sealed sensor
designed for control and monitoring applications. elements enable to meet a variety of applications in oil,
The measuring element is a fully welded diaphragm gas, power, steel and petrochemical industries.
made of stainless steel 316L. This corrosion-resistant
pressure switch is suitable for a broad range of media The model PS-601, 602 has a high switch point
used in the process industry. repeatability of ±1%, which enables reliable switching.
The switch point can be specified on site with external
The enclosure made of a high-grade aluminium alloy adjustment option. Adjustable switch differential enable
with which the pressure switch can withstand the harsh to realise flexible on/off controls, this wide setting
operating conditions of the process industry. range is often needed for the on/off control mode of
cyclic applications.
WIKA Data sheet PV 35.60 ∙ 06/2023 Page 1 of 5
Specifications
Basic information
Case type Weatherproof external switch point adjustment
Case material Die cast aluminium epoxy powder coated enclosure with ABS plastic
cover
Environment sealing ■ Enclosure: Silicon
■ Sensor: EPDM
Sensor element
Type Diaphragm element
Wetted parts SS 316L Diaphragm with SS 316 / CF8M Housing
Environment sealing EPDM
Output signal
Number of switch point One
Setting ranges à See table "Setting range"
External with lock
Switching differential ■ 601 - Fixed differential
■ 602 - Narrowband adjustable differential
Setpoint repeatability ■ ± 1% of FSR (standard)
■ ± 0.5% of FSR (optional) for range code B032 and B033
Response time <1 second
Scale accuracy ±5% of FSR
Switching function ■ 1 x SPDT (single pole double throw)
■ 2 x SPDT (single pole double throw), for DPDT action
Synchronising error within 2% of FSR. (Synchronisation
is applicable at Setpoint only. Not applicable at Reset
points).
Contact version à See table "Contact versions"
Electrical connection
Number of Entries ■ 1 x left side
■ 1 x left side and 1 x top side
Conduit type ■ 1/2" NPT(F) per ASME B1.20.1
■ 7 pin plug for 1 × left side entry
■ 3/4" NPT(F) per ASME B1.20.1 through mild steel adaptor
■ M20 × 1.5 (F) per ISO 724 through mild steel adaptor
Process connection
Type Lower mount
Size ■ 1/4" NPT(F) Per ASME B1.20.1
■ 1/2" NPT(F) Per ASME B1.20.1
Other sizes through adaptor à see datasheet AC 10.82
Material SS 316
Mounting
Type ■ Direct
■ Panel
■ Pipe-2"
■ Wall
Material ■ SS 304 for panel mounting
■ SS 316 for pipe-2", wall mounting
■ Mild steel epoxy coated for pipe-2", wall mounting
Page 2 of 5 WIKA Data sheet PV 35.60 ∙ 06/2023
Operating condition
Ambient temperature range -10°C ... +60°C [14 ... 140°F]
Medium temperature range -20…+170°C [-4….338°F]
Storage temperature range -10°C ... +60°C [14 ... 140°F]
Pressure safety with blow out disc Yes – standard
Ingress protection IP66 per IS/IEC 60529
Weight Approx. 600 grams
Setting range
Switching differential for contact versions (2)
Maximum
Code Range (1), (3) working 601 - Fixed within 602 - Narrowband adjustable
pressure (4)
1 × SPDT 2 × SPDT 1 × SPDT 2 × SPDT
Unit: bar or Kg/Cm²
B026/K107 0.2 ... 1.6 60 0.16 0.24 - -
B030/K093 0.4 ... 4 60 0.4 0.6 - -
B032/K102 0.7 ... 7 60 0.7 1.05 1.05…2.10 1.4…2.45
B033/K095 1 ... 10 60 1 1.5 1.5...3.0 2.0...3.5
B035/K096 1.6 ... 16 60 1.6 2.4 - -
(1)
In the absence of customer specification, the switch point will be preset on falling pressure to the mid point of the range
[I.e. 50% of span + minimum range value]
(2)
The values indicate the maximum achievable limits of switch differential. The above mentioned differentials are calculated
at midpoint of range, the differentials will vary with range setting and operating conditions
(3)
Set and reset point of the switch should not exceed the upper and lower range limits.
(4)
Maximum working pressure that the sensor element can withstand without suffering any permanent damage. The
instrument might have to be calibrated afterwards.
Contact version
Electrical rating AC Electrical rating DC
Switching Resistive Inductive
Type Resistive load Inductive load
differential load load
125V 250V 125V 250V 24V 30V 110V 125V 220V 250V 30V 125V 250V
General
601 15A 15A 4A 4A 8A - 0.5A - 0.25A - - - -
purpose
silver
602 contact 15A 15A 10A 10A - 10A - 0.6A - 0.3A 10A 0.6A 0.3A
Certificates (option)
■ 2.2 test report per EN 10204
■ 3.1 calibration certificate per EN 10204
■ 3.1 material restamping certificate per EN 10204
Accessories
See data sheet AC 10.82
WIKA Data sheet PV 35.60 ∙ 06/2023 Page 3 of 5
Dimensions in mm
Model PS-601
Panel Mounting
Wall Mounting
2" Pipe Mounting
Page 4 of 5 WIKA Data sheet PV 35.60 ∙ 06/2023
Dimensions in mm
Model PS-602
Panel Mounting
Wall Mounting
2" Pipe Mounting
Ordering information
Model / Switching differential / Setting Range / Switching direction / Switch point / Switching function / Electrical connection /
Process connection / Mounting
© 2022 WIKA Alexander Wiegand SE & Co. KG, all rights reserved.
The specifications given in this document represent the state of engineering at the time of publishing.
We reserve the right to make modifications to the specifications and materials.
WIKA Data sheet PV 35.60 ∙ 06/2023 Page 5 of 5
WIKA Instruments India Pvt. Ltd.
128 SIDCO North Phase
Ambattur Industrial Estate, Chennai 600 098
Tel. +91 44 2625 2017 / 2018 / 9840919318
switch.sales@wika.com
www.wika.co.in
