
Phone: 800-257-3872 • Fax: 978-264-0292 • setra.com ©2013 Setra Systems, Inc. All rights reserved. The Setra Systems name and logo are registered trademarks of Setra Systems, Inc.
©2013 Setra Systems, Inc. All rights reserved. The Setra Systems name and logo are registered trademarks of Setra Systems, Inc. Phone: 800-257-3872 • Fax: 978-264-0292 • setra.com
DIFFERENTIAL PRESSURE
Model 230
Wet-to-Wet Pressure Transducer
PRESSURE RANGES
UNIDIRECTIONAL
Pressure
Range PSID
Proof Pressure
High Side* PSI
Proof Pressure
Low Side* PSI
0 to 1.0
0 to 2.0
0 to 5.0
0 to 10.0
0 to 25.0
0 to 30.0
0 to 50.0
0 to 100.0
50
50
100
100
350
350
350
350
2.5
5
12.5
25
62.5
75
125
250
BIDIRECTIONAL
Pressure
Range PSID
Proof Pressure
High Side* PSI
Proof Pressure
Low Side* PSI
0 to ±0.5
0 to ±1.0
0 to ±2.5
0 to ±5.0
0 to ±10.0
0 to ±25.0
0 to ±50.0
50
50
100
100
200
350
350
1.25
2.5
6.35
12.5
25
62.5
125
FEATURES
■ Ideal for Applications with Line Pressure
up to 350 psig
■ NEMA 4/IP65 Rating
■ No Liquid Fill Diaphragm
■ Available with 3-Valve or 5-Valve Manifold
Assembly Option
■ Low Line Pressure Eect
■ Fast Response
■ Gas and Liquid Compatible
■ Low Dierential Ranges
■ Meets CE Conformance Standards
APPLICATIONS
■ Energy Management Systems
■ Process Control Systems
■ Flow Measurement of Various Gases or
Liquids
■ Liquid Level Measurement of Pressurized
Vessels
■ Pressure Drop Across Filters
NOTE: Setra quality standards are based on AN-
SI-Z540-1.
The calibration of this product is NIST traceable.
DESCRIPTION
The Model 230 is a high output low dierential pressure trans-
ducer designed for wet-to-wet dierential pressure measure-
ments of liquids or gases. A fast-response capacitance sensor
and signal conditioned electronic circuitry provide a highly
accurate, linear analog output proportional to pressure. Both
unidirectional and bidirectional ranges are available for appli-
cations with line pressure up to 350 psig.
Optional 3-valve or 5-valve manifold assemblies are available
for ease of installation and maintenance. The manifolds are
machined brass bodies requiring no internal pipe connections,
thereby eliminating the risk of internal leaks. If the 230 is or-
dered with the manifold, the system is shipped completely as-
sembled.
*The zero will shift slightly when high dierential overpressure is applied. The shift may be as much as ±10% FS with
overpressure applied to the low pressure port. Other parameters (sensitivity, linearity, etc) will not shift. If the overpres-
sure is normally only in one direction, the user may apply this overpressure to preset the sensor. Subsequent overload of
less magnitude will not cause additional shift. The unit is pre-zeroed at the factory after application of maximum overload
pressure to the high pressure port.
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