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RXLDP - 2 Pages

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RXLDP

Catalog excerpts

C ASHCROFT' Trust the shield.™ PERFORMANCE SPECIFICATIONS Output Signal:    Power: APPLICATIONS: HVAC, fume hood control, lab/clean room pressurization, laminar flow, leak detection, medical, fan tracking, glove-box and velocity measurements FEATURES: • 0.1"-50"H2O pressure ranges • CE approval option • High overpressure protection • Stainless steel & Lexan NEMA 1 construction • Five types of output signals available • Mounts inside standard 32" electrical box • Board level OEM versions available • On-board voltage regulation allows use of lower cost unregulated power supply Featuring a highly reliable variable capacitance sensor using the patented Ashcroft® SiGlas™ sensor. This ultra-thin single crystal diaphragm provides inherent sensor repeatability and stability. The patented Si-Glas™ technology combines the high sensitivity of a variable capacitance transducer with the repeatability of a micro machined, ultra-thin single crystal silicon diaphragm. The Ashcroft Si-Glas sensor enables precise measurement and control of very low pressure. Although the diaphragm deflects only a micron, the sensor is 100 times more sensitive to pressure than available silicon piezo-resistive pressure sensors. The Si-Glas sensor is composed of sputtered metals and glass molecularly bonded to silicon. There are no epoxies or other organics in the sensor to contribute to drift or mechanical degradation over time. Ref. Temperature: 70°F ±2°F (21°C ±1°C) Accuracy Class (of Span): 1.0% Includes non-linearity (Terminal Point Method), hysteresis, non-repeatability, zero offset and span setting errors. Stability - Max. Change (Span/year): ±0.5 % Standard Ranges (Inches W.C.) Unidirectional Ranges: Differential or Gauge Custom Ranges: Special range calibration, (XCL) - Consult factory Response Time Standard: 250ms (factory set) (Consult factory for dampening options) ENVIRONMENTAL SPECIFICATIONS Temperature Limits: Storage:    -40 to 180°F Thermal Coefficients: ZERO    ±0.025% Span/°F Vibration Sweep: Less than ±0.05%F.S. temporary effect with 5 g’s 0-60Hz EMC: CE model compliant to EN61326: 1997 Annex A. Harmonized heavy industrial transmitter specification FUNCTIONAL SPECIFICATIONS Overpressure Limits: Proof    15 psid Max. Static Line Pressure: 25 psi Mounting Position Effect: 0.5" W.C. and higher    0.1% Span/g Note: Calibrated horizontally standard, unless otherwise specified. Mounting Position Effect easily corrected with zero potentiometer. ELECTRICAL SPECIFICATIONS *Optional CE versions available Output signal is independent of power supply changes: 12-36 Vdc range without effect on output signal Reverse Wiring Protected Zero Span Potentiometers: Externally accessible; non-interactive ZERO    ±5% Span All specifications are subject to change without notice. All sales subject to standard terms and conditions. © Ashcroft Inc. 2015 10/15 Ashcroft Inc., 250 East Main Street, Stratford, CT 06614 USA Tel: 203-378-8281 • Fax: 203-385-0408 email: info@ashcroft.com • www.ashcroft.c

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Model RXLdp Ultra-Low Pressure Differential Transmitter DIMENSIONS (in inches) ELECTRICAL SPECIFICATIONS (cont.) Supply Current: <6mA for voltage output Warm-up Time: Five seconds max. to meet stated specifications PHYSICAL SPECIFICATIONS Pressure Connections: Stainless steel 1⁄8 NPT female, 1⁄4˝ and 1⁄8˝ barbed connection Electrical Connections: Terminal strip Weight: 4.5 oz, NEMA 1 Case MATERIALS: Case/Cap: Stainless steel/Lexan Media: Clean, dry and noncorrosive gas (consult factory for use on other media) NOT FOR USE ON LIQUIDS • (XRK) Back plate adapter • (XRH) Calibration report •...

 Open the catalog to page 2

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