1005 6:1 TURN-DOWN INDUSTRIAL DIFFERENTIAL PRESSURE TRANSMITTER $

6:1 TURN-DOWN INDUSTRIAL
DIFFERENTIAL PRESSURE TRANSMITTER
PX771A Series
4 to 20 mA Output
0-17 inH2O to 0-300 psid
1005
$
All Models
PX771A-025DI, $1005,
shown smaller than
actual size.
PX771A transmitter, shown with
iSeries strain and process meters
and controllers featured on page
D-7, which start at $150 and are
shown smaller than actual size.
⻬ 2-Year Warranty
⻬ 0.15% FS Accuracy
⻬ Explosion-Proof
Electrical Housing
⻬ Stainless Steel
Wetted Parts
⻬ Process Wetted Parts
Meet NACE Specification
MR0175-91
⻬ High Common-Mode
Pressure Rejection
⻬ 6:1 Turn-Down Capability
⻬ ±600% Zero Suppression
or Elevation
⻬ NEMA 4X (IP66) Housing
⻬ 4 to 20 mA or
1 to 5 Vdc Output
B-185
The OMEGA® PX771A low-power
pressure transmitter is a compact,
high-performance unit, designed to
measure differential pressure and
transmit a 4 to 20 mA signal. It has
an adjustable range with a turndown ratio of 6:1, and it comes
factory-calibrated at the highest
span. Ranges from 17 inH2O to 300
psid are available. Zero and span
adjustments are accessed inside
the electronic housing. The zero
point can be elevated and
suppressed up to ±600%. This
transducer has an internal silicon
diaphragm into which piezoresistive
strain gages are diffused, then
interconnected to form a pressure
sensitive Wheatstone bridge.
FOR GAGE, DIFFERENTIAL, AND VACUUM MEASUREMENTS
DIFFERENTIAL
PRESSURE TRANSDUCERS
Optional PX771-AD,
1
⁄2 NPT adaptors,
$90 each.
Shown smaller
than actual size.
41
(1 5/8)
54
(1 1/8)
SPECIFICATIONS
Service: Liquid, gas or vapor
Excitation:
24 Vdc, 7 to 36 Vdc mA output,
6 to 42 Vdc @ 1.6 mA voltage output
Output: 4 to 20 mA (2 wire) or 1 to 5 Vdc
(3 wire) jumper selectable
Max Loop Resistance:
(Supply voltage – 7) x 50 Ω
Accuracy: ±0.1% of URL
(upper range limit, includes linearity,
hysteresis and repeatability)
Stability: ±0.25% of URL
(upper range limit) 1 year
Span Adjust: 16 to 100% URL
(DIP switches and pot)
Zero Adjust: -600 to 600% LRL
(lower range limit)
Operating Temperature:
Process: -40 to 104°C (-40 to 220°F)
Electrical: -32 to 85°C (-25 to 185°F)
Ambient Total Thermal Effects:
0.010% URL/°F for -25 to 75°F
0.015% URL/°F for 75 to 185°F
(0.020% URL/°F for 100 inH2O)
Response Time: 63% response
1 ms or 50 ms with damping
Static Pressure Effect:
+0.05% of URL <100 psi ranges
+0.1% of URL for 100 and 300 psi ranges
EMI Effect: ±1% URL @ 10 V/m from
20 to 500 MHz. Meets /SAMA
PMC-33-1C with cover in place and
electrical wiring in grounded conduit.
Approvals: UL/CUL
Hazardous Location: I/I/C, D
Non-incendive: I/II/A, B, C, D
Wetted Parts: 316 SS
Process Connection: 1⁄4 NPT internal,
1
⁄2 NPT with optional adaptors
Fill Fluid: DC 200 silicone
Dimensions:
mm (in)
68
(2 11/16)
Housing: Low copper aluminum,
epoxy coated, NEMA 4X (IP66)
Electrical Connection: 1⁄2 NPTF
conduit, with internal screw terminals
Weight: 2.9 kg (6.4 lb)
Compatible Meters:
DP41-E, DP25-E,
DP24-E, DP460,
DP3002-E and others
(see section D for
complete selection)
MOST POPULAR MODELS HIGHLIGHTED!
To Order (Specify Model Number)
RANGE
MODEL NO.
0-17 to 0-100 inH2O
PX771A-100WCDI
0-50 to 0-300 inH2O
PX771A-300WCDI
0-4.2 to 0-25 psi
PX771A-025DI
0-17 to 0-100 psi
PX771A-100DI
0-50 to 0-300 psi
PX771A-300DI
OPTIONS AND ACCESSORIES
-SUFFIX or MODEL NO.
PRICE
-M3
$175
PX771-AD
90
PX771A-MB-KIT
65
PX771A-MB-KIT-N
65
OP-17
15
PRICE
$1005
1005
1005
1005
1005
MAX WORK PRES
2000 psi
2000 psi
2000 psi
2000 psi
2000 psi
COMPATIBLE METERS*
iSeries, DP25B-E, DP41-E, DP460-E
iSeries, DP25B-E, DP41-E, DP460-E
iSeries, DP25B-E, DP41-E, DP460-E
iSeries, DP25B-E, DP41-E, DP460-E
iSeries, DP25B-E, DP41-E, DP460-E
DESCRIPTION
31⁄2 digit LCD local indicator (FM approval not available with option)
1 pair of stainless steel 1⁄2 NPT adaptors
2" pipe mounting bracket (order separately), flange mount
Neck mounting bracket kit (order separately)
Reference Book: Measure for Measure
* See section D for compatible meters.
Comes with complete operator’s manual.
Ordering Examples: PX771A-300WCDI, industrial transmitter with 0-50 to 0-300 inH2O range, $1005. PX771A-100WCDI, industrial
transmitter with 0-17 to 0-100 inH2O range, $1005.
B-186
B
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