Model V1 Pressure Transducer The Ashcroft(R) V1 high performance pressure transducer featuring monolithic construction and fused silicon gage technology is The Ashcroft(R) Model V1 premier pressure transducer utilizes fused silicon strain gage technology. This unique technology is based on a principle that results in superior linearity and repeatability performance, high proof and burst pressure tolerance, and wide operating temperature capability. The pressure sensing element and the process connection are of a one-piece construction, with no weld joints to compromise the strength and reliability of the structure. There are no epoxies or organic materials to contribute to signal instability or drift. This robust unit is virtually unaffected by shock, vibration, mounting position, or pressure pulsation. The wide operating temperature range, all-stainless steel wetted materials, high overpressure protection and highly reliable Ashcroft electronics, makes the V1 transducer a solid choice for many applications. specifically designed to meet the demanding needs of industrial and hydraulic applications. * Compressor/Pump Control * Fuel Management Systems * Machine Tools * Lift Trucks * Hydraulic Stamping Presses * Railroad Braking Systems * Process Monitoring * General Industrial * Numerous Hydraulic Applications T R A N S D U C E R O P E R AT I O N S BULLETIN V1 Model V1 Pressure Transducer/Transmitter PERFORMANCE CHARACTERISTICS ELECTRICAL SPECIFICATIONS Accuracy Class (F.S.) Nonlinearity Terminal Point* B.F.S.L. Hysteresis Nonrepeatability Interchangeability Output Signal: 4-20mA (2 wire) 1-6Vdc (3 wire) 1-5Vdc (3 wire) 0.5-4.5Vdc (3 wire) (Non-ratiometric) Power Requirements: 10-36 Vdc unregulated All units are reverse polarity protected Supply Current: Less than 10mA RFI Protection: Standard IEC 801-3 Level 4 at 20 v/m Response Time: Less than 5ms typical Circuit to Case Insulation Resistance: 100 M @ 250Vdc 0.4 0.25 +0.05 0.05 0.5% 1.0% 0.7 0.4 +0.1 0.1 1.0% * Including Hysteresis Standard Ranges (psis): 0/100 0/1500 0/7500 0/200 0/2000 0/10,000 0/500 0/3000 0/15,000 0/750 0/3600 0/20,000 0/1000 0/5000 Consult factory for nonstandard ranges Stability: 0.5% F.S./year Durability: 108 cycles 15/115% F.S. with negligible performance change ENVIRONMENTAL CHARACTERISTICS Temperature: Storage -65/+275F -54/+135C Operating -40/+250F -40/+121C Compensated 0.50% -4/+185F -20/+85C 1.00% -40/+212F -40/+100C Thermal Coefficients: (68F ref.) Zero Span 0.5% 0.015% F.S./F 0.015% F.S./F 1.0% 0.02% F.S./F 0.02% F.S./F Humidity: No performance effects at 95% relative humidity - noncondensing FUNCTIONAL CHARACTERISTICS Overpressure: (F.S.) Unit Range Proof 0/100-0/500 300% 0/750-0/2000 300% 0/3000-0/5000 300% 0/7500* 300% 0/10,000* 300% 0/15,000* 275% 0/20,000* 250% Burst #16 Gage Wires 12 Long 1.81 (46.02) Housing Material 304 SS 1.52 (38.6) 2.2 (54.9) 0.62 (15.6) 0.25 (6.4) PHYSICAL CHARACTERISTICS 1/4 NPT Process Connections: 18 NPT male* or female* 14 NPT male or female 716-20 male* Socket Material 17-4PH Stainless Steel Enclosure: NEMA 4X, all welded, hermetically sealed Case: All-welded 300 series stainless steel Socket/Diaphragm: Monolithic construction, 17-4 pH SS Weight: Approx. 6 oz. OPTIONAL FEATURES Temperature output and switching option (TTL level) available - consult factory for details Bendix(R) is registered trademark of Amphenol Corp. Hirschmann(R) is registered trademark of Richard Hirschmann of America, Inc. 1500% 1000% 750% 750% 750% 750% 750% 0.875 Wrench Flats Loop Supply Voltage vs. Loop Resistance for 4-20mA Output Only *Two-piece process connection. Consult factory for other process connections. 1182 Loop Resistance (Ohms) 0.5% Dimensions 1000 750 500 250 0 0 10 20 30 36 Loop Supply Voltage (Vdc) Vmin = 10V + [.022A*(RL)] *includes a 10% safety factor RL = RS + RW RL = Loop Resistance (ohms) RS = Sense Resistance (ohms) RW = Wire Resistance (ohms) *Burst rating slightly lower for two-piece connections, consult factory 38 WELLINGTON ROAD MILFORD, CT 06460 (203) 783-6650 Customer Service (203) 783-6659 Fax www.dresser.com/instruments Position Effect: Less than 0.01%F.S. Vibration: Less than 0.1% F.S. effect for 50-2000Hz at 5 g's in any axis How To Order V 1 ACCURACY CLASS 5 = 0.5% 7 = 1.0% MODEL TYPE PRESSURE CONNECTION F01 = 1/8 NPT-F F02 = 1/4 NPT-F M01 = 1/8 NPT-M M02 = 1/4 NPT-M MEK = 7/16-20-M Pressure ranges up to and including 10,000 psi OUTPUT 15 = 1-5 Vdc 16 = 1-6 Vdc 42 = 4-20mA 45 = 0.5-4.5 Vdc Nonratiometric ELECTRICAL TERMINATION 12 = 12 16 AWG Wire Leads F2 = 3 ft. Cable F4 = 6 ft. Cable F5 = 9 ft. Cable F6 = 12 ft. Cable F7 = 15 ft. Cable F8 = 20 ft. Cable P1 = Custom Cable Length (specify length) PRESSURE RANGES (100) 100 psi (10,000) 10,000 psi All specifications are subject to change without notice. All sales subject to standard terms and conditions. (c) Dresser Instrument Division 2/98 5M DPI 5P-2/98 X VARIATIONS See Drawing 64A234