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HPM288 explosion proof EXd EX tb ATEX protective Pressure Transmitter With Digital Display new anti explosion standard1
SensorPressure Transducerpressure transmitter
Nanjing Hangjia Electronic Technology Co., Ltd.
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Product Description The core component of the HPM288 series explosion-proof pressure transmitter is a high-precision, high-stability silicon piezoresistive pressure sensitive element. Its electrical working principle is to form a Wheatstone bridge on a silicon substrate by ion implantation and laser correction. The external pressure acts on the isolation diaphragm of the sensor to cause the diaphragm to displace, and the pressure is transmitted to the silicon substrate through the silicone oil in the diaphragm box, so that two of the four resistors of the Wheatstone bridge have a smaller resistance due to stretching, and the other two have a larger resistance due to compression. The change in the resistance of the bridge arm causes the bridge to lose balance, thus generating a voltage output signal proportional to the pressure. Product FeaturesExplosion-proof marking: Ex db IIC T6 Gb;Ex tb IIIC T80°C Db; Certificate No. CE24.4662Aluminum alloy shell, ingress protection IP66Field display, support 4-20mADC signal output and other RS485, HART signalsWith polarity reversal protection, overcurrent and overvoltage protectionStrong anti-jamming, long-term stability Product ParametersMeasuring MediumVarious liquids, gases, and steam compatible with 304 or 316 stainless steelsPressure Range-0.1…0~0.01…100MPaOverload1.5 times pressure range of full scalePressure TypeGauge, Absolute or Sealed GaugeSupply VoltageDC12~28VOutput SignalDC4~20mA, 0~10/20mA, RS485 or switch signalAllowed Load Resistance0~600Ω(DC 24V, including cable's resistance)Accuracy±0.5%FSLong-term Stability±0.2%FS/yearTemperature Coefficient of Zero±0.03%FS/oC(Reference 25oC)Temperature Coefficient of Full Scale±0.03%FS/oC (Reference 25oC)Ambient Temperature-30~85oC(normal type); -40~60oC(explosion-proof type)Working environment humidityno more than 90%RH (+25oC)Explosion-proof marking Ex db IIC T6 Gb; Ex tb IIIC T80°C DbZone 1 and Zone 2 places where explosive mixtures formed by mixing flammable gases, steam and air in categories IIA, IIB, IIC, and T1 to T6 groups existIn an environment with explosive dustIn a place without significant shaking and impact vibrationExplosion-proof certificate numberCE24.4662Dimension (Unit:mm)Product Structure DiagramOrdering GuideItem NO.Type HPM288Explosion-Proof Pressure Transmitter CodeInstallation method ASThreaded mounting, seal gauge pressure or absolute pressureGThreaded mounting, gauge pressureQPThreaded flush diaphragmG-FFlange typeKPClamp type Pressure RangeMeasuring Range (0~X)MPaFill out X directly CodeOutput Signal B1(4~20)mAB2(0~10)mAB3(0~10)VB4(0~5)VB5(1~5)VB6(0.5~4.5)V CodeProcess Connection P1M20×1.5P4G1/2K5051.5-inch clampK6402-inch clampF20DN20 flangeF25DN25 flangeF50DN50 flange CodeElectrical Connection C2Cable Gland CodeStructure&MaterialDiaphragmProcess ConnectionHousingM1316LStainless steelAluminum AlloyM1A316L316LAluminum AlloyM2TitaniumTitaniumAluminum AlloyM3TantalumCustomizedAluminum AlloyM4Ha CCustomizedAluminum Alloy CodeAdditional FunctionsdEx db IIC T6 GbfEx tb IIIC T80°C DbvFluororubber O-ring (default)jNitrile O-ringD1LED displayD2LCD displayHPM288AS(0~10)MPaB1P1C2M1d D2FAQ1. Q: Are you manufacturer or trading company? A: We are manufacturer which focuses on sensor for 10 years.2. Q: What's your quality control system? A: MC, ISO9001, CE Certificated.3. Q: What is the warranty of your products? A: Our warranty time is 18 months after shipment. 4. Q: What is lead time of your product? A: Normally, our factory lead time is within 10~15 working days for products without customization. You can also check lead time detail with our sales depending on different items. 5. Q: Do you provide customized products? A: Yes, we can laser mark your logo on products; OEM and ODM customization are welcomed. 6. Q: What is your MOQ? A: We have no MOQ limit, small quantity order is acceptable. 7. Q: What's the transport? A: Express such as DHL, FedEx, TNT, UPS for freight prepaid; and we can also use your own courier account to do the freight collect. For more goods we can arrange by air or by Sea. 8. Q: What is your terms of payment ? A: We could accept T/T, Paypal, WU.
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