The ME Performance Level ‘c’ seri of Gefran are prsure tranitters for using in high temperature environment. The main charaeristic of this seri is the capability to read temperature of the media up to 400°C. The construive principle is based on the hydraulic traission of the prsure. The fluid-filled system ur the temperature stability. The phisical measure is transformed in a elerical measure by means of the strain-gauge technology. MAIN FEATUR ? Prsure rang 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: ME0 (30mm3 ); ME1, ME2 (40mm3 ) ? 1/2-20UNF, M18x1.5 standard threads; other t available on requt ? Autozero funion on board / external option ? Standard diaphragm is 15-5 PH stainls steel with GTP coating ? 17-7 PH corrugated diaphragm with GTP coating for rang below 100 bar-1500 psi GTP (advanced proteion) Coating with high ristance against corrosion, abrasion and high temperature AUTOZERO FUNION All signal variations in the absence of prsure can be eliminated by using the Autozero funion. This funion is aivated by closing a magnetic conta located on the tranitter housing. The procedure is permitted only with prsure at zero. TECHNICAL SPECIFICATIONS MELT PRSURE TRANITTERS ME SERI PERFORMANCE LEVEL ‘c’ Output 4...20mA Accuracy (1) H <±0.25%FSO (100...2000 bar) M <±0.5%FSO (35...2000 bar) Rolution 16 bit Measurement range 0..35 to 0..2000bar 0..500 to 0..30000psi Maximum overprsure (without degrading performanc) 2 x FS 1.5 x FS above 1000bar/15000psi Measurement principle Extensimetric Power supply 13...30Vdc Maximum current absorption 23mA (40mA with relay optional) Output signal Full Scale FSO 20mA Zero balance (tollerance ± 0.25% FSO) 4mA Rponse time (10...90% FSO) 8ms Output noise (RMS 10-400Hz) < 0.025% FSO Calibration signal 80% FSO Power supply polarity reverse proteion Y Compensed temperature range housing 0...+85°C Operating temperature range housing -30...+85°C Storage temperature range housing -40...+125°C Thermal drift in compated range: Zero / Calibration / Sensibility < 0.02% FSO/°C Diaphragm maximum temperature 400°C / 750°F Zero drift due to change in procs temperature (zero) < 0.02 bar/°C Standard material in conta with procs medium Diaphragm: ? 15-5PH with GTP coating ? 17-7 PH corrugated diaphragm with GTP coating for rang <100bar (1500psi) Stem: ? 17-4 PH Thermocouple (model ME2) STD : te “J” (isolated junion) Proteion degree (with 6-pole female conneor) IP65