Gefran Vietnam,BỘ CHUYỂN ÁP MELT MD2-5-M-B05C-1-4-G-XMC97 2130X000X00 Gefran

MELT PRESSURE TRANSMITTERS MD SERIES DP404 CAN OPEN digital output 

The MD series of Gefran, are pressure transmitters for using in High temperature environment. The main characteristic of this series is the capability to read temperature of the media up to 400°C. The constructive principle is based on the hydraulic trasmission of the pressure. The fluid-filled system assures the temperature stability. The phisical measure is transformed in a electrical measure by means of thick film on stainless steel technology.

TECHNICAL SPECIFICATIONS Rated precision, including effects of linearity, repeatability and hysteresis Sampling Pressure ranges Maximum applicable pressure Measurement principle Power supply Typical input Insulation resistance (at 50Vdc) Signal at rated pressure (FSO) Signal at ambient pressure Calibration of ambient pressure Signal protocol Response time (10 at 90% FSO) Electronic response time (10 at 90% FSO) Calibration signal Protection against overvoltage and reverse polarity of power supply Compensated temperature range of strain gauge housing Maximum temperature range of strain Gauge Housing Thermal drift in Zero compensated range; Calibration Sensitivity Max. diaphragm temperature Influence due to variation of fluid temperature (zero) Standard material in contact with process medium Thermocouple (model MD2) Protection level Electrical connections H < ±0.25%FSO (100…2000 bar) M < ±0.5%FSO (35…2000 bar) 16 bit (1) 0-500 to 0-30.000 psi 0-35 to 0-2000 bari 2 x FSO Strain gauge 12…40 Vdc 20 mA (2) >1000 MOhm Depends on FSO 0 Insertion of an offset DP404 CAN OPEN, with baud rate selectable from 10K to 1M baud (default 500 Kbaud 20 ms 2 ms 80%FSO YES 0…+85°C 32…+185°F -30…+105°C -22…+221°F <0.02 %FSO/°C <0.01 %FSO/°F <0.01 %FSO/°F 400°C (750°F) 15 Psi/100°F 0.02bar/°C Diaphragm: • 15-5 PH with GTP+ coating • 17-7 PH corrugated diaphragm with GTP+ coating for ranges <100 bar (1500psi) Stem: • 17-4 PH STD: Type * J (isolated coupling) IP65 M12 DIN EN 50044 5-pin connector (1) resolution: 0.01bar from 35…500bar; 0.1bar from 700…2000bar; 0.1psi from 5000 …350psi; 1psi from 7500…30000psi (2) Conditions: Power supply 24 Vdc FSO = Full Scale Output (Signal at rated pressure)

MAIN FEATURES Electrical • Digital output signal with DP404 CAN OPEN communication protocol • Transmission frequency (Baud rate): 10 Kbaud to 1 Mbaud (default 500 Kbaud) • Software selection of Baud rate and ID nodes • Operation with 1 or 2 settable alarm limits • “Autozero” for temperature compensation • Zero and span drift compensation • 80% FSO calibration signal Mechanical • Pressure ranges: 0-35 to 0-2000 bar / 0-500 to 0-30000 psi • Accuracy: < ± 0.25% FSO (H); < ±0.5% FSO (M) • Hydraulic transmission system to guarantee temperature stability.(Hg) • Quantity of Hg contained for model: series MDE0 (30mm3 ); series MD1, MD2, MD3 (40mm3 ) • Standard threading: 1/2-20 UNF, M18x1.5; other versions on request • Autozero function by software • Stainless steel 15-5 PH diaphragm with GTP+ coating • For ranges below 100 bar – 1500 psi: stainless steel 17-7PH corrugated diaphragm with GTP+ coating GTP+ (advanced protection) Coating with high resistance against corrosion, abrasion and high temperature

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