Low Power Indusrial Differential Pressure Transmitter
Discontinued Product

PX771A

LOW POWER INDUSTRIAL DIFFERENTIAL PRESSURE TRANSMITTER

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2-Year Warranty
0.15% FS Accuracy
Explosion-Proof Electrical Housing
Stainless Steel Wetted Parts
Process Wetted Parts Meet N.A.C.E. Specification MR0175-91
High Common Mode Pressure Rejection
6:1 Turn Down Capability
Zero Suppression or Elevation
NEMA 4X Housing
4-20 mA or 1-5 Vdc Output

Pressure Transducers - View related products

Description

The PX771A has been discontinued please see the PX5200 as a possible substitute or contact our sales department.

The OMEGA™ PX771A low power pressure transmitter is a compact, high performance transmitter, designed to accurately measure differential pressure and transmit a 4-20 mA signal. The PX771A has an adjustable range with a turndown ratio of 6:1; it comes factory calibrated at the highest span. Ranges from 17 in H₂O to 300 PSID are available. Zero and span adjustments are available inside the electronic housing. The zero point can be elevated and suppressed up to ±600%. This transducer consists of an internal silicon diaphragm into which piezoresistive strain gages are diffused, then interconnected to form a pressure sensitive wheatstone bridge.

SPECIFICATIONS
Service: Liquid, Gas or Vapor
Excitation: 7-36 Vdc for mA output, 6-42 Vdc @ 1.6 mA for voltage output
Output: 4-20 mA (2-wire) or 1-5 Vdc (3-wire) user selectable
Max. Loop Resistance: (supply voltage-7) x 50 .
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 (Low Range Limit)
Operating Temperature: Process: -40 to 104°C (-40 to 220°F) (Fluorolube -17.8 to 104°C, 0 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 inH 2 O)
Response Time: 63% response 1 ms or 50ms with damping
Static Pressure Effect: +0.05% of URL <100 psi ranges +0.1% of URL for 100 & 300 psi ranges
EMI Effect: ±1% URL @ 10V/m from 20 to 500 MHz. Meets /SAMA PMC-33-1C with cover in place and electrical wiring in grounded conduit
Approvals: Optional UL/CUL or CENELEC
Wetted Parts: 316 SS
Process Connection: 1/4 NPT internal, 1/2 NPT with optional adaptors
Fill Fluid: DC 200 Silicon or Fluorolube
Housing: Low copper aluminum, epoxy coated, NEMA 4X
Electrical Connection: 1 /2 " NPTF conduit, with internal screw terminals
Weight: 2.9 kg (6.4 lb)

(Specify Model Number)

Part Number/Desc.

Qty

Description

PX771-AD

Consult Sales

Availability:

One pair of Stainless steel 1/2 NPT adapters

PX771A-MB-KIT

Consult Sales

Availability:

2'' pipe mounting bracket, flange mount (ordered separately)