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Murphy PXT Series Pressure Transmitters压力传感器
PXT-K Series Pressure Transmitters

 

PXT-K系列压力变送器是提供4-20毫安输出的最先进仪器。每个压阻式压力变送器包含一个由压阻式硅片组成的传感器,压阻式硅片安装在焊接在不锈钢外壳上的玻璃金属馈通集管上,并填充硅油。超薄的激光焊接不锈钢隔离膜完成正面。介质压力从不锈钢隔离隔膜通过电池内的油传递到硅测量芯片。这种结构,再加上先进的内部信号调节电路,使仪器坚固耐用,温度误差极小,抗电磁干扰/射频干扰能力一流。外壳和所有浸湿部件均由316L不锈钢制成,符合NACE MR0175的要求。The PXT-K Series pressure transmitters are state-of-the-art instruments providing 4-20 mA output. Each Piezoresistive Pressure Transmitter contains a transducer comprised of a piezoresistive silicon chip mounted on a glass-metal feed-through header welded into a stainless steel housing and filled with silicone oil. The very thin laser-welded stainless steel isolation-diaphragm completes the front side. Media pressure is transferred from the stainless steel isolation-diaphragm via the oil inside the cell to the silicon measuring chip. This construction, combined with the advanced internal signal conditioning circuitry, results in a rugged instrument with extremely small temperature error and class-leading EMI/RFI resistance.The enclosure and all wetted parts are made of 316L stainless steel to comply with NACE MR0175.

PXT-K系列压力变送器可用于压缩机、发动机、过程控制、液位和泵等应用场合。PXT-K Series Pressure Transmitters can be used in applications such as compressors, engines, process control, liquid level and pumps.

 

PXT-K Series Pressure Transmitters PDF Catalog download

规格参数:

4-20 mA output signal, 4-20 mA信号输出
0.25% accuracy ,0.25%精度误差范围
High stability,稳定性极高
Precision etched silicon sensor ,精准的硅感应元件
Corrosion resistant construction ,防腐蚀型结构

 

PXT series pressure transmitters are state-of-the-art devices for use with 4-20mA control circuits. Each device features a precision micro-machined silicon diaphragm with fully welded stainless steel pressure port for greater accuracy, stability and a wide range of compatibility. Variant B6436 includes a PXT-600 with 1" BSPT, 316 stainless steel diaphagm, for use with slurry and dirty water irrigation applications. The enclosure is made of 316 stainless steel and all wetted parts are 316L stainless steel or HASTELLOY C276.

Specifications

  • Operating Pressure Range : See How to Order under the PXT-K Series Model Number Matrix.
  • Operating Temperature : -40 to 180° F (-40 to 82° C)
  • Compensated Temp Range : -20 to 160° F (-29 to 71° C)

Physical Characteristics

  • Process Connection : 1/4 NPT female with 7/8” Hex nut
  • Electrical Connection (PXT-K-XXX) : 1/2” NPT male conduit connection with 60” long cable, vented
  • Enclosure : NEMA 4/IP65 or better
  • Body : 316L stainless steel. Complies with NACE MR0175
  • Wetted Parts : 316L stainless steel
  • Environmental Effect (Humidity) : No effect for 0-95%, non-condensing
  • Mounting : Transmitter can be installed in any axis. Transmitter position has a negligible effect on performance as long as it is perpendicular to the flow being monitored.
  • Shock Resistance : 1000g per IEC 60068-2-6 (Mechanical Shock)
  • Vibration Resistance : 20G per IEC 60068-2-6 (Vibration under resonance)
  • Wiring Protection : Protected against reverse polarity and short circuit, 48 VDC Maximum
  • Supply Voltage : 8 - 30 VDC (Typically 24 VDC)
  • Transmitter Output : 4-20mA, two wire configurations with load characteristics
  • Insulation : Greater than 10MΩ @ 300 VDC
  • Electromagnetic Compatibility (EMC) : Standards; EN 61000-6-2:2005, EN 61000-6-3:2007, EN 61326-2-3:2006
  • Voltage Surge/Spike Protection : Protection against a 600 volt spike per IEC 60-2
  • Shipping Weight : 6.5 ounces

Applicable Standards

  • NACE MR0175
    • Compliant with the requirements
  • CSA (c/us) :
    • Class I / II / III, Div 1, Groups A-F T4
    • Class I / II / III, Div 2, Groups A-D,F,G T4
  • ATEX :
    • IBExU 10 ATEX 1124 X
    • II 1G Ex ia IIC T6-T4
      II 3G Ex nA IIC T6

 

PXT-15 (05705064): Pressure Transmitter

PXT-K-60 (05707734): Pressure Transmitter PXT-K-100 (05707735): Pressure Transmitter
PXT-K-200 (05707736): Pressure Transmitter

PXT-300 (05705067): Pressure Transmitter PXT-400 (05707357): Pressure Transmitter
PXT-K-600 (05707739): Pressure Transmitter
PXT-5000 (05705070): Pressure Transmitter PXT Series Pressure Transmitters

Applications:
The PXT can be used in applications such as Compressors, Engines, Process Control, Liquid Level and Pumps.
Specifications

Accuracy (Full Scale, Best Straight Line):
±0.25% including non-linearity, hysteresis and repeatability. Long
term stability better than 0.2% FS over twelve (12) months.
Zero Setting: ±0.5% of full scale (0.25% typical).
Span Setting: ±0.5% of full scale BSL (RSS).
Overpressure/Proof Pressure: 400% for up to 500 psi (3.45 MPa) [34 Bar]. 200% for higher ranges.
Burst Pressure: Ranges 0-1000 psi = 600% of full scale or 4000 psi whichever is lower. Ranges 2000 psi 13.79 MPa) [137 Bar]= 20,000 psi (27.5 MPa) [275 Bar].
Response Time: Frequency response better than 2 kHz.
Storage Temperature: -65 to 200°F (-54 to 93°C).
Operating Temperature: -40 to 180°F (-40 to 82°C).
Compensated Temperature: -20 to 160°F (-29 to 71°C).
Total Thermal Effects Over Compensated Range: ±2% FS TEB.

Physical:
Enclosure: Weather Resistant.
Body: 316 stainless steel. Meets NACE MR01-75.
Wetted Parts: 316L stainless steel or HASTELLOY C276.
Process Connection: 1/4 NPT female.
Electrical Cable: Integral; 60 in. (914 mm); vented. 1/2 in. NPT male onduit connection

Environmental Effect: Humidity: No effect.
Mounting: Position/orientation has negligible effect. Reverse polarity protected
Shock: 1000g 1ms Half sine Pulse in each of 3 mutually perpendicular axis will not affect performance.
Vibration: Effect on output response is less than 0.05% FS/g at 30g Peak 10Hz to 2kHz, limited by 0.05 in double amplitude. (MIL STD 810C Proc. 514.2-2 curve L). PXT Power Requirements: Typically 24 VDC is required, using the Loop Resistance Graph, 9-30 VDC.

PXT Series Transmitter Output: 4–20 mA, 2-wire.
Insulation: Greater than 10 Mohms @ 500 VDC.
RFI Protection: To the European standards of BS EN 50082-2:1991 in accordance with IEC 801 parts 1 to 6 for suspectibility to EMC and to BS EN 50081-1992 for emissions.
Voltage Surge/Spike: Protected against a 600 V spike to IEC 60-2. Reverse polarity protected.
Sealed: Sealed at one atmosphere at sea level for ranges > 1000 psi (6.89 MPa) [68 Bar].
Vented: Vented for ranges < = 1000 psi (6.89 MPa) [68 Bar].

UL Certification: Class I, Division 2, Groups A, B, C and D; Class II, Groups E, F and G. Pressure transmitter, Model PXT. Intrinsically safe when installed per system, Diagram No. 05-08-0754. UL File #E169675

Shipping Weight: 0.90 lb. (408 g).
Shipping Dimensions: 5 x 5 x 5 inches (127 x 127 x 127 mm).

PXT Series Pressure Transmitters Model

PXT-300 (05705067): Pressure Transmitter
The PXT-300 Pressure Transmitter is a state-of-the-art instrument providing a 4 to 20 mA output. The pressure range for this model is 0-300 psi (2.07 MPa) [20.67 bar].

PXT-400 (05707357): Pressure Transmitter
The PXT-400 Pressure Transmitter is a state-of-the-art instrument providing a 4 to 20 mA output. The pressure range for this model is 0-400 psi (2.75 MPa) [27.56 bar].

PXT-200 (05705066): Pressure Transmitter
The PXT-200 Pressure Transmitter is a state-of-the-art instrument providing a 4 to 20 mA output. The pressure range for this model is 0-200 psi (1.38 MPa) [13.78 bar].


PXT-100 (05707356): Pressure Transmitter
The PXT-100 Pressure Transmitter is a state-of-the-art instrument providing a 4 to 20 mA output. The pressure range for this model is 0-100 psi (689 kPa) [6.89 bar].


PXT-600 (05705068): Pressure Transmitter
The PXT-600 Pressure Transmitter is a state-of-the-art instrument providing a 4 to 20 mA output. The pressure range for this model is 0-600 psi (4.14 MPa) [41.34 bar].

PXT Pressure Transmitters PXT-1000,PXT-2000,PXT-3000,PXT-5000,PXT-6000

PXT-15 (05705064): Pressure Transmitter
PXT-K-60 (05707734): Pressure Transmitter
PXT-K-100 (05707735): Pressure Transmitter
PXT-K-200 (05707736): Pressure Transmitter
PXT-300 (05705067): Pressure Transmitter
PXT-400 (05707357): Pressure Transmitter
PXT-K-600 (05707739): Pressure Transmitter
PXT-5000 (05705070): Pressure Transmitter

 

For more information about this product, you can download the related literature here:

 



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