GEFRAN杰弗伦MN1熔体压力变送器MN1-6-M-B35D-1-4-D

The MN 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 the strain-gauge technology. TECHNICAL SPECIFICATIONS Accuracy (1) Resolution Measurement range Maximum overpressure (without degrading performances) Measurement principle Power supply Maximum current absorption Insulation resistance (at 50Vdc) Output signal Full Scale (FSO) Zero balance (tollerance ± 0.25% FSO) Zero signals adjustment (tollerance ± 0.25% FSO) Span adjustment within ± 5% FSO Maximum allowed load Response time (10...90% FSO) Output noise (RMS 10-400Hz) Calibration signal Output short circuit ingress and reverse polarity protection Compensed temperature range Operating temperature range Storage temperature range Thermal drift in compesated range: Zero / Calibration / Sensibility Diaphragm maximum temperature Zero drift due to change in process temperature (zero) Zero drift temperature for Autocompensated version (SP) within the temperature range 20°C-400°C inclusive the drift temperature of the housing Standard material in contact with process medium Thermocouple (model MN2) Protection degree (6-pole female connect) H <±0.25%FSO (100...2000 bar) M <±0.5%FSO (35...2000 bar) Infinite 0..35 to 0..2000bar 0..500 to 0..30000psi 2 x FS 1.5 x FS above 1000bar/15000psi Extensimetric 15...30Vdc N, C 10...30Vdc B, M -15...+15Vdc H, L 25mA >1000 MOhm 5Vdc (M, H) - 10Vdc (N, L) 5,1Vdc (B) - 10,1Vdc (C) 0Vdc (M, N, H, L) 0.1Vdc (B, C) “Autozero” function See Manual 1mA ~ 1ms < 0.025% FSO 80% FSO YES 0...+85°C -30...+105°C -40...+125°C < 0.02% FSO/°C 400°C / 750°F 0.02 bar/°C < 0.003 bar/°C 100 ≤ p < 500 bar 0.0014 %FS/°C p ≥ 500 bar 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 junction) IP65 FSO = Full scale output: (1) BFSL method (Best Fit Straight Line): includes combined effects of Non-Linearity, Hysteresis and Repeatability. MAIN FEATURES • Pressure ranges from: 0-35 to 0-2000 bar / 0-500 to 0-30000 psi • Accuracy: < ±0.25% FSO (H); < ±0.5% FSO (M) • Fluid-filled system for temperature stability • Mercury filling volume: MN0 (30mm3 ); MN1, MN2, MN3 (40mm3) • 1/2-20UNF, M18x1.5 standard threads; other types available on request • Other diaphragms available on request • Autozero function on board / external option • Drift Autocompensation function (SP version) • Standard diaphragm is 15-5 PH stainless steel with GTP coating • 17-7 PH corrugated diaphragm with GTP coating for ranges below 100 bar-1500 psi GTP (advanced protection) Coating with high resistance against corrosion, abrasion and high temperature AUTOZERO FUNCTION All signal variations in the absence of pressure can be eliminated by using the Autozero function. This function is activated by closing a magnetic contact located on the transmitter housing. The procedure is permitted only with pressure at zero. AUTOCOMPENSATES INFLUENCE OF MELT TEMPERATURE Thanks to internal self-compensation, the MSP series transmitter cancels the effect of pressure signal variation caused by variation of Melt temperature. This reduces at the minimum the read error caused by heating of the filling fluid (typical of all sensors built with “filled” technology).