PXT-K Series
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FW MURPHY" PRODUCTION CONTROLS Pressure Transmitters PXT-K Series 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. PXT-K Series Pressure Transmitters can be used in applications such as compressors, engines, process control, liquid level and pumps. Operating Range Supply voltage for the PXT-K must be within range of 8-30 VDC. The graph below shows the minimum supply voltage (VDC) required for a given load resistance (R). Operating Pressure Range: See How to Order under the PXT-K Series Model Number Matrix. Operating Temperature: -22 to 176° F (-30 to 80° C) Compensated Temp Range: -20 to 160° F (-29 to 71° C) Process Connection: 1/4“-18 NPT female with 7/8“ hex nut (2000 psig and below), or 1-3/16“ hex nut (3000 psig and above) models Electrical Connection: PXT-K: 1/2“ NPT male conduit connection, 60“ long cable, vented PXT-KM: M12 connector Enclosure: NEMA 4/IP65 or better Body: 316L stainless steel. Wetted Parts: 316L stainless steel Environmental Effect (Humidity): No effect for 0-95%, non-condensing Mounting: All axis positions, has negligible effect on performance as long as it is perpendicular to the flow being monitored. Shock Resistance: 800g per IEC 60068-2-27 (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: 4-20 mA, two wire configurations with load characteristics Insulation: Greater than 10 MQ @ 300 VDC Electromagnetic Compatibility (EMC): Standards; EN 610006-2:2005, 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 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 Canadian Registration Number: OF15236.2 (all providences and territories) In order to consistently bring you the highest quality, full-featured products, we reserve the right to change our specifications and designs at any time. FW MURPHY product names and the FW MURPHY logo are proprietary trademarks. This document, including textual matter and illustrations, is copyright protected with all rights reserved. (c) 2020 FW MURPHY. A copy of our typical warranty may be viewed or printed by going to www.fwmurphy.com/warranty.

+/- 0.25% of span* +/- 2.5% of full scale* max. (30V30WC only) +/- 0.25% of span* typical, +/-0.5% of span* max (all other ranges) +/- 2.5% of span T.E.B. +/- 1.7% of span T.E.B. <5mS Specifications (continued) Accuracy: % of Span (BFSL) Zero/Span Setting Tolerance Operating Temperature Compensated Temperature Response Time * Accuracy Tolerance to be applied at 25° C. The Hex is for tightening process threads only. The 7/8” Hex is on the 2000 psig and below models. The 1 3/16” Hex is on the 3000 psig and above models.