Johnson Controls DPT 230 Catalog Page
Model DPT 230
Wet/Wet Differential Pressure Transducer
(Available with 3-Valve Manifold Assembly)
Ranges: 0 to ±0.5 psid up to 0 to 100 psid. Liquids or Gases Both Sides
Applications
● Process Control
● Energy Management
Systems
● Flow measurement of
various gases or liquids
● Liquid level measure-
ment of pressurized
vessels
● Pressure Drop Across
Filters
Features
■ NEMA 4/IP65 rating
■ 3-Valve Manifold
Assembly
■ High Accuracy
■ Low Cost
etra Systems Model 230 is a high output,
low differential pressure transducer
designed for wet to wet differential
S
pressure measurements 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
pressure ranges are available for applications
with line pressure up to 250 psig.
A unique isolation system transmits the motion
of the differential pressure sensing diaphragm
from the high line pressure environment (e.g.
corrosive liquids) to the dry (air) enclosure where
it moves one of a pair of capacitance plates
proportionally to the diaphragm movement. All
parts exposed to the pressure media are stainless steel and elastomer seals. The 230 has a
NEMA 4/IP65 rated package to withstand
environmental effects. This system responds to
pressure changes approximately 20 times faster
Pressure Ranges
UNIDIRECTIONAL BIDIRECTIONAL
Pressure Pressure Pressure
Range High Side* Low Side*
PSID PSI PSI
0 to 1 20 2.5
0 to 2 40 5
0 to 5 100 12.5
0 to 10 100 25
0 to 25 250 62.5
0 to 50 250 125
0 to 100 250 250
NOTE: Setra quality standards including ISO 9001 are based on
ANSI-Z540-1. The calibration of this product is NIST traceable.
U.S. Patent nos. 4054833
Proof Proof
than conventional fluid-filled transducers. The
electronic circuit linearizes output vs. pressure and
compensates for thermal effects of the sensor.
The Model 230 can be
supplied with a 3-valve
manifold assembly (ordered
as Pressure Fitting Code V)
to protect against excessive
differential overpressure,
which may occur during
installation, start-up or
shut-down. The 230 bleed ports allow for total
elimination of air in the line and pressure
cavities. The manifold’s rugged, yet compact,
construction requires minimum space for
installation. If the Model 230 is ordered with the
3-valve manifold, the system is shipped completely assembled and ready for wall or pipe
mounting. If 3-Valve Manifold Assembly is ordered
separately without 230 transducer, order as
DPT 3-VALVE.
Proof Proof
Pressure Pressure Pressure
Range High Side* Low Side*
PSID PSI PSI
0 to ±0.5 20 1.25
0 to ±1 40 2.5
0 to ±2.5 100 6.25
0 to ±5 100 12.5
0 to ±10 200 25
0 to ±25 250 62.5
0 to ±50 250 125
*The zero will shift slightly when high differential 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 overpressure 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 pr e-zero ed at the factory after application of maximum overload pressure to the high pressure port.
■ Fast Response
■ Gas and Liquid
Compatible
■ Low Differential Ranges
■ Low Line Pressure Effect
■ No Liquid Fill
Diaphragms
ISO
900 1
✓
Certified
Performance Data
Accuracy RSS* (at constant temp) ±0.25% FS
Non-Linearity, BFSL ±0.20% FS
Hysteresis 0.10% FS
Non-Repeatability 0.05% FS
Thermal Effects
Compensated Range °F(°C) 30 to 150 (-1 to 65)
Zero shift %FS/°F(%FS/°C) 2.0 (1.8)
Span Shift %FS/°F(%FS/°C) 2.0 (1.8)
Line Pressure Effect Zero shift ±0.004%
FS/psig line pressure.
Resolution Infinite, limited only by
output noise level (0.02%FS)
Static Acceleration Effect 2%FS/g (most sensitive axis)
Natural Frequency 500 Hz (gaseous media)
Warm-up Shift ±0.1% FS total
Response Time 30 to 50 milliseconds
Long T erm Stability 0.5%/1 YR
Maximum Working Pressure 250 psig
*RSS of Non-Linearity, Non-Repeatability and Hysteresis.
Specifications subject to change without notice.
Model 230 Specifications
Environmental Data
Temperature
Operating* °F (°C) 0 to +175 (-18 to +80)
Storage °F (°C) -65 to +250 (-54 to +121)
Vibration 5g from 5Hz to 500Hz
Acceleration 10g
Shock 50g
*Operating temperature limits of the electronics only.
Pressure media temperatures may be considerably higher or lower.
Physical Description
Case Stainless Steel/Aluminum
Electrical Connection Barrier strip terminal block with conduit
enclosure & 0.875 DIA conduit opening.
Pressure Fittings 1/4”-18” NPT internal
Weight (approx.) 14.4oz
Sensor Cavity Volume 0.27 in3 Positive Port,
0.08 in3 Negative Port
(With 1/4”NPT external fittings installed - does not include
cavity volume of 1/4”NPT external fittings.)
Electrical Data (Voltage)
Circuit 3-Wire (Exc., Out, Com)
Excitation 9 to 30 VDC for 0-5 VDC output
13 to 30 VDC for 0-10 VDC output
Electrical Data (Voltage) Cont’d.
*
Output
Output Impedance 100 ohms
*Calibrated into a 50K ohm load, operable into a 5000 ohm load or greater.
**Zero output factory set at 50mV (±25mV) for 0-5 VDC and 50mV
(±50mV) for 0-10 VDC.
**Span output factory set at 5 VDC (±25mV) or 10 VDC (±50mV).
0-5 VDC
0-10 VDC
**
**
Electrical Data (Current)
Circuit 2-Wire
Output
*
4 to 20mA
**
External Load 0 to 1000 ohms
Minimum loop supply voltage (VDC) = 9 + 0.02 x
(Resistance of receiver plus line).
Maximum loop supply voltage (VDC) = 30 + 0.004 x
(Resistance of receiver plus line).
*Calibrated at factory with a 24 VDC loop supply voltage and a 250 ohm load.
**Zero output factory set at 4mA (±.08mA)
**Span output factory set at 20mA (±.08mA)
Pressure Media
Gases or liquids compatible with 17-4 PH Stainless Steel, 300
Series Stainless Steel, Viton and Silicone O-Rings.
Note: Hydrogen not recommended for use with 17-4 PH stainless steel.
Outline Drawings
3.01
77
3.05
77
2.44
62
1/4-18 NPT
HIGH PRESSURE
PORT
2.15
55
BLEED
SCREWS
1.94
49
1.00
25
NOTCHED
MOUNTING
FOR
CLAMP
2.00
51
1.00
Ordering Information
Input Product Codes
Range 0 to 5 VDC 0 to 10 VDC 4 to 20 mA
1.50
Dia. 0.156
Dia. 4.0
38
1.63
41
33
1.50
38
Dia.875
Conduit
Opening
Dia.22
1/4-18NPT
LOW PRESSURE
PORT
25
TRANSDUCER
MOUNTING
HOLES(screws provided: mounts t o
bottom of 230 Transmitter)
3.00
76
2.50
64
1.63
41
0.52130.88221.30
PSID Output Output Output
0 to 1 DPT2300-001D DPT2302-001D DPT2301-001D
0 to 2 DPT2300-002D DPT2302-002D DPT2301-002D
0 to 5 DPT2300-005D DPT2302-005D DPT2301-005D
0 to 10 DPT2300-010D DPT2302-010D DPT2301-010D
0 to 25 DPT2300-025D DPT2302-025D DPT2301-025D
0 to 50 DPT2300-050D DPT2302-050D DPT2301-050D
0 to 100 DPT2300-100D DPT2302-100D DPT2301-100D
-0.5 to 0.5 DPT2300-0R5B DPT2302-0R5B DPT2301-0R5B
-1 to 1 DPT2300-001B DPT2302-001B DPT2301-001B
-2.5 to 2.5 DPT2300-2R5B DPT2302-2R5B DPT2301-2R5B
-5 to 5 DPT2300-005B DPT2302-005B DPT2301-005B
-10 to 10 DPT2300-010B DPT2302-010B DPT2301-010B
-25 to 25 DPT2300-025B DPT2302-025B DPT2301-025B
-50 to 50 DPT2300-050B DPT2302-050B DPT2301-050B
Product Codes
Input
Range 0 to 5 VDC 0 to 10 VDC 4 to 20 mA
PSID Output Output Output
0 to 1 DPT2300-001D-V DPT2302-001D-V DPT2301-001D-V
0 to 2 DPT2300-002D-V DPT2302-002D-V DPT2301-002D-V
0 to 5 DPT2300-005D-V DPT2302-005D-V DPT2301-005D-V
0 to 10 DPT2300-010D-V DPT2302-010D-V DPT2301-010D-V
0 to 25 DPT2300-025D-V DPT2302-025D-V DPT2301-025D-V
0 to 50 DPT2300-050D-V DPT2302-050D-V DPT2301-050D-V
0 to 100 DPT2300-100D-V DPT2302-100D-V DPT2301-100D-V
with 3-Valve Manifold Option
3-Valve Manifold Assembly Description
(Order by adding “-V” to standard part number. See example below.)
Manifold Block Brass
Valves (3) V1 for connection to +port
V2 for connection to -port
V3 for equalizing pressure
Valve type 90 Degree On/Off
Process Connections 1/4” -18 NPT Internal Thread
V3
V1 V2
-0.5 to 0.5 DPT2300-0R5B-V DPT2302-0R5B-V DPT2301-0R5B-V
-1 to 1 DPT2300-001B-V DPT2302-001B-V DPT2301-001B-V
-2.5 to 2.5 DPT2300-2R5B-V DPT2302-2R5B-V DPT2301-2R5B-V
-5 to 5 DPT2300-005B-V DPT2302-005B-V DPT2301-005B-V
-10 to 10 DPT2300-010B-V DPT2302-010B-V DPT2301-010B-V
-25 to 25 DPT2300-025B-V DPT2302-025B-V DPT2301-025B-V
-50 to 50 DPT2300-050B-V DPT2302-050B-V DPT2301-050B-V
For calibration certificate, add DPT-CAL-REPORT
after part number.
For separate 3-Valve Manifold order as DPT 3-VALVE
Example: Part No. 2300-005D-V for a 230 Transducer, 0 to 5 PSID.
Unidirectional Range, 0 to 5 VDC Output. Assembled with the
3-Valve Manifold.
SSPC230JCI Rev.C-2pg. 02/22/02
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