OEM Pressure Transmitter 压力变送器
Advantages General Description Ultra low cost with qualified OEM pressure transmitter Extremely corrosion resistant Measuring ranges from 0.5 to 500kgf/cm2 Rugged piezoresistive ceramic measuring cell Unamplified (millivolts) or amplified output signal Compact design and adjustable zero and span Competitive price Applications These rugged pressure transmitters are designed for use in industrial and commercial OEM applications. Hydraulic and pneumatic equipments Process control and monitoring Machine tools and automatic machinery Air conditioning and refrigeration Servo valves and drives Air and gas compressors Do manufacture customer designed OEM pressure transducers and transmitters………
P417 series low cost pressure transducers and transmitters are perfect for high volume OEM applications for measuring pressure of gases and liquids in industrial applications. The transmitter is engineered for the price and performance requirements of original equipment manufacturers and is extremely versatile and suitable for measuring static pressure. The built-in ceramic measuring cell is highly corrosion resistant, stable and low temperature drift. Thanks to their high natural frequency and the rugged construction the transmitter withstands high shock and vibration. The transmitters are available as absolute and relative pressure types with either 2-wire current or 3-wire voltage output. The pressure to be measured acts without transmitting liquid on a stable, corrosion resistant ceramic measuring cell. Piezoresistive resistors are attached to the cell and connected into a Wheatstone bridge configuration. The output signal of this bridge is converted into a standardized current or voltage output signal. Also, the precision pressure transmitter with ±0.25% FSO is available on special request.
Technology Piezoresistive ceramic pressure sensor Pressure ranges 0~0.5 to 0~500kgf/cm2 absolute or gauge pressure Pressure reference Gauge, absolute, vacuum and compound Overload 1.5× full scale without damage Current output Voltage output Unamplified Electrical connection type 2-wire technique 3 or 4-wire technique Full scale output signal 20mA ±0.5% 5V ±0.5% 2.2~3.3m V/V Zero measured output 4mA ±0.05% 1V ±0.05% Other signals available on request Excitation voltage 12~36V DC 16~32V DC 5~30V DC Load resistance max@24V 500Ωat 24V Influence of excitation 0.01% FSO/V Power ripple ≤500mV P-P Reverse polarity Protected Shock resistance ≤20g Response time 1.5ms Adjustment ±10% FSO/zero and span Accuracy ≤±0.5% FSO or ≤±0.25% FSO(option) Linearity, Hysteresis & Repeatability ±0.2…0.4% FSO typical Stability ±0.3% FSO/a @25°C Cutoff frequency(-3 d B) ≤2kHz Reference temperature 25°C Operating temperature range -40~125°C Compensated temperature range 0~70°C Thermal sensitivity shift ≤±0.015%/°C typical Thermal zero shift ≤±0.02% FSO/°C typical Process connection PT1/4″, PT3/8″, PT1/2″male thread PF1/4″, PF3/8″, PF1/2″male thread Female thread & other connections available on request Process media Gases and liquids compatible with ceramic Al2 O3, 96% Materials wetted by process Diaphragm : Ceramic Al2 O3, 96% Housing : Stainless steel 316 Gasket O-ring : Viton (HNBR, CSM, etc.) Enclosure rating IP65 Influence of mounting position Not critical Weight Approx.(140g) Options Sealed diaphragm with thread connection Sealed diaphragm with flange mounting Siphon tube Sealed diaphragm with capillary Note : ① Other electrical connections are available such as DIN and MILconnectors ② For precision measurement, accuracy ±0.25%FSO class available on reguest ③ Vented gauge units must breathe dry, non - corrosive gases. ④ Connector version is vented through the removed pin, cable versions are vented through a vent tube inside the cable sleeve
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