COMPACT INDUSTRIAL WET/WET
DIFFERENTIAL PRESSURE TRANSDUCER
STANDARD AND METRIC MODELS
PX81/PXM81 Series
0-2 to 0-500 psidStandard Models
0-140 mbar to 0-35 barMetric Models
Differential Pressure
mV/V Output
0 to 5 Vdc Output
4 to 20 mA Output
1 bar = 14.5 psi
1 kg/cm2= 14.22 psi
1 atmosphere = 14.7 psi = 29.93
inHg = 760.2 mmHg = 1.014 bar
Starts at
$
550
PX81D1-010D5T,
$685, shown
actual size.
a
C
styl
PRESSURE TRANSDUCERS
DIFFERENTIAL
e
l
b
e.
B
Standard
⻬ High-Accuracy Wet/Wet
Differential Pressure
⻬ All Stainless Steel
Construction for Harsh
Industrial Environments
⻬ High Operating
Temperature
⻬ 5-Point Calibration
Provided: 0%, 50%,
100%, 50%, 0%
OMEGA’s PX81/PXM81 Series
wet/wet, differential pressure
transducers are compact and highly
accurate, designed for industrial
applications in which low drift and
long-term reliability are important.
Their small temperature-compensation
error minimizes errors due to changing
process temperatures, and the rugged
all stainless steel construction allows
the PX81/PXM81 to withstand typical
harsh environments found in chemical
and industrial plants. Available with
either mV/V, 0 to 5 Vdc, or 4 to 20 mA
outputs, PX81/PXM81 Series
transducers will interface with most
control systems.
Twist-lock
style.
Custom Terminations
are also Available,
Consult Engineering.
METRIC
PXM81MD1-3.50BARDV,
$550, shown actual size.
B-250
STANDARD
PX81D0-020DV, $550,
shown actual size.
PXM81D0-020DV
OUTPUT: V = 3 mV/V nominal
5T = 0 to 5 Vdc
I = 4 to 20 mA
DIFFERENTIAL PRESSURE
RANGE IN psi FOR PX81; mbar FOR PXM81
ELECTRICAL CONNECTION:
0 = 3 m (10') cable
1 = PTIH-10-6P connector or equiv.
6 = mini DIN connector
(no shunt)
PRESSURE PORT: D = 1/4-18 FNPT
MD = G1/4
MODEL NUMBER SPECIFICATION:
psi
RANGE
METRIC
bar
RANGE
WET/WET DIFFERENTIAL
PRESSURE TRANSDUCERS
hermal Effects:
SPECIFICATIONS
V/V Output
m
Excitation: 10 Vdc
(15 V max)
utput: 3 mV/V nominal
O
Bridge Resistance:
350 Ω minimum
Zero Balance: ±1% FSO
Shunt: 80% FSO
5 Vdc Output
Excitation: 24 to 32 Vdc
Output: 0 to 5 Vdc ±10% adj
Zero Balance: 0 V ±10% adj
4 to 20mA Output
Excitation: 10 to 40 Vdc
Output: 4 to 20 mA ±10%
Zero Balance:
4 mA +10% -2% adj
Shunt: 80% FSO
COMMON SPECIFICATIONS
Accuracy: ±0.25% linearity,
hysteresis and repeatability combined
Environmental:
Operating Temp Range:
mV/V: -73 to 163°C (-100 to 325°F)
5T and I: -46 to 121°C (-50 to 250°C)
Compensated Temp Range:
17 to 71°C (60 to 160°F)
STANDARD AND METRIC
CUSTOM CONFIGURATIONS
T
V/V and 5 V:
m
ero: ±0.0054% FSO/°C
Z
pan: ±0.0054% rdg/°C
S
to 20 mA:
4
ero: ±0.009% FSO/°C
Z
Span: ±0.009% rdg/°C
Pressure:
Safe Overpressure:
150% rated pressure
Line Pressure: 150% rated pressure
(applied simultaneously to both sides)
Burst Pressure: 300%
rated pressure
Mechanical:
Wetted Parts: 17-4 PH
stainless steel
Pressure Port: See dimensional
drawings on following pages
Electrical Connection:
Style 0: 3 m (10') cable
Style 1: PTIH-10-6P (or equal)
Style 6: mini DIN
Mating Connector:
Style 1: PT06F10-6S
(sold separately)
Style 6: Mating connector included
Style 1 Mating
Connector
PT06F10-6S
$26.50, sold
separately.
e
l
b
a
C
.
e
l
ty
s
STANDARD
PX81D0-020DV,
$550, shown
actual size.
Ordering Examples: PX81D0-500DI, 500 psid range model with 4 to 20 mA output and 3 m (10') PVC cable, $685.
PX81D0-005DV, 5 psid range model with mV/V output and 3 m (10') PVC cable, $550.
PX81D1-200D5T, 200 psid range model with 0 to 5 Vdc output and integral connector, $685. PT06F10-6S, mating connector, $26.50.
PX81D0-020DI, 20 psid range model with 4 to 20 mA output and 3 m (10') cable, $685.
B-251
4 to 20 mA OUTPUT STANDARD RANGES
104
(4.1)
MAX
19
(0.75)
16
(0.63)
37
(1.45)
19
(0.75)
44
(1.75)
DIA.
1/4-18 NPT
INTERNAL
19
(3/4)
HEX
1/2-14 NPT
1-1/8 (29) HEX
ZERO A DJ.
(SPAN OPPOSITE SIDE)
3 m (10')
2-Conductor
PVC Cable
Wiring Code
Black
Red
– INPUT
+ INPUT
PX81 Series
4 to 20 mA Output
0-2 to 0-500 psid
0-140 mbar to 0-35 bar
Differential Pressure
All Ranges
4 to 20 mA Models
$
685
Standard
⻬ High-Accuracy Wet/Wet
Differential Pressure
⻬ All Stainless Steel
Construction for Harsh
Industrial Environments
⻬ High Operating
Temperature
⻬ 5-Point Calibration
Provided: 0%, 50%,
100%, 50%, 0%
Cable style.
PRESSURE TRANSDUCERS
DIFFERENTIAL
STANDARD
PX81D0-005DI, $685, shown
smaller than actual size.
B
Dimensions: mm (in)
CONNECTIONS 4 to 20 mA
PIN Cable DIN
+Input A Red 1
-Input B Black 2
Style 1 Mating
Connector
PT06F10-6S
$26.50, sold
separately.
Recommended Reference Book:
Pipeline Rules of Thumb Handbook,
See Section Y for Additional Books.
PE-1357, $125.
STANDARD MODELS
MOST POPULAR MODELS HIGHLIGHTED!
To Order (Specify Model Number)
Models with 4 to 20 mA Output with 1⁄4 NPT fitting
RANGE MODEL NO. PRICE COMPATIBLE METERS*
0 to 2 psid 0 to 0.14 bar PX81D[*]-002DI $685
0 to 5 psid 0 to 0.34 bar PX81D[*]-005DI 685
0 to 20 psid 0 to 1.4 bar PX81D[*]-020DI 685
0 to 50 psid 0 to 3.4 bar PX81D[*]-050DI 685
0 to 100 psid 0 to 6.9 bar PX81D[*]-100DI 685
0 to 200 psid 0 to 13.8 bar PX81D[*]-200DI 685
0 to 300 psid 0 to 20.7 bar PX81D[*]-300DI 685
0 to 500 psid 0 to 34.5 bar PX81D[*]-500DI 685
Comes complete with 5-point NIST traceable calibration.
*
[*] To specify electrical termination, insert “0” for 3 m (10') cable, “1” for twist-lock connector,
or “6” for mini DIN connector.
Ordering Examples: PX81D1-005DI, 5 psi differential pressure transmitters with
4 to 20 mA output and twist-lock connector, $685.
PT06F10-6S, mating connector (sold separately), $26.50.
See section D for compatible meters.
B-256
DP41-E, DP25B-E, DP24-E
DP41-E, DP25B-E, DP24-E
DP41-E, DP25B-E, DP24-E
DP41-E, DP25B-E, DP24-E
DP41-E, DP25B-E, DP24-E
DP41-E, DP25B-E, DP24-E
DP41-E, DP25B-E, DP24-E
DP41-E, DP25B-E, DP24-E
104
(4.1)
MAX
19
(
0.75)
16
(0.63)
1
9
(0.75)
44 (1.75)
DIA
G 1/4
INTERNAL
P
1/2-14 NPT
29 (1 - 1/ 8) HE X
ZERO AD J.
(SPAN OPPOSITE SIDE)
3
m (10')
2
-Conductor
C
able
21
(0.83)
HEX
37
(
1.45)
4 to 20 mA OUTPUT METRIC RANGES
PXM81 Series
4 to 20 mA Output
0-160 mbar to 0-35 bar
0-2 to 0-500 psi
Differential Pressure
All Ranges
4 to 20 mA Models
Cable style.
METRIC
PXM81MD0-1.40BARDI, $685,
shown smaller than actual size.
$
Dimensions:
mm (in)
685
Standard
⻬ High-Accuracy Wet/Wet
Differential Pressure
⻬ All Stainless Steel
Construction for Harsh
Industrial Environments
⻬ High Operating
Temperature
⻬ 5-Point Calibration
Provided: 0%, 50%,
Style 1 Mating
Connector PT06F10-6S
$26.50, sold separately.
100%, 50%, 0%
METRIC MODELS
MOST POPULAR MODELS HIGHLIGHTED!
To Order (Specify Model Number)
4 to 20 mA Output with G 1⁄4 Pressure Connection, Specify Electrical Termination
RANGE MODEL NO. PRICE COMPATIBLE METERS*
DIFFERENTIAL PRESSURE
0 to 160 mbar 0 to 2.3 psi PXM81MD[*]-160mBARDI $685 DP41-E, DP25B-E, DP24-E
0 to 350 mbar 0 to 5 psi PXM81MD[*]-350mBARDI 685 DP41-E, DP25B-E, DP24-E
0 to 700 mbar 0 to 10 psi PXM81MD[*]-700mBARDI 685 DP41-E, DP25B-E, DP24-E
0 to 1.4 bar 0 to 20 psi PXM81MD[*]-1.40BARDI 685 DP41-E, DP25B-E, DP24-E
0 to 3.5 bar 0 to 51 psi PXM81MD[*]-3.50BARDI 685 DP41-E, DP25B-E, DP24-E
0 to 7 bar 0 to 102 psi PXM81MD[*]-007BARDI 685 DP41-E, DP25B-E, DP24-E
0 to 14 bar 0 to 203 psi PXM81MD[*]-014BARDI 685 DP41-E, DP25B-E, DP24-E
0 to 20 bar 0 to 290 psi PXM81MD[*]-020BARDI 685 DP41-E, DP25B-E, DP24-E
0 to 35 bar 0 to 508 psi PXM81MD[*]-035BARDI 685 DP41-E, DP25B-E, DP24-E
Comes complete with 5-point NIST traceable calibration.
] Insert “0” for 3 m (10') cable, “1” for twist-lock connector or “6” for mini DIN connector.*See section D for compatible meters.
[
*
To order extra cable on cable-style models, add suffix “-(Total length in meters)M” and $6.50/m beyond the standard 3 m (10') length.
Ordering Examples: PXM81MD0-014BARDI-10M, 14 bar differential pressure transmitter with 4 to 20 mA output and 10 m (32') cable,
$685 + (7 x 6.50) = $730.50. PXM81MD1-350mBARDI, 350 mbar differential pressure transmitter with 4 to 20 mA output and a twist-lock
connector, $685. PT06F10-6S, mating connector (sold separately), $26.50.
CONNECTIONS 4 to 20 mA
PIN Cable DIN
+Input A Red 1
-Input B Black 2
Recommended Reference Book: Principles and Practice of Automatic Process Control,
CM-4225, $185. See Section Y for Additional Books.
B-257
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