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Model XLdp Ultra-Low Differential Pressure Transmitter

Brand: Ashcroft Inc

The Ashcroft® XLdp Differential Transmitter uses patented Si-Glas™ technology which provides precise measurement and control at extremely low DP pressures.

Since signal instability and drift are eliminated, this model is virtually unaffected by shock or vibration. 

An ideal choice when pressure measurement is needed.
Features
  • Certified 0.25% and 0.5% accuracy 
  • 0.1" to 50" H2O pressure ranges 
  • CE approved 
  • High overpressure protection 
  • NEMA 2 stainless steel construction 
  • Three output signals available 
  • Easy installation 
  • On-board voltage regulation allows use of lower cost, non-precise, unregulated power supply 
  • 9 point NIST traceable calibration certificate 

Specifications

Brand

NPT Connection

  • 1/4” NPT Female

Line Pressure

  • Maximum

Stability

  • Maximum

Update Time

  • Warm-Up Time: 5 seconds, Max.

Compensated Temperature

  • 2° to 57° C (35° to 135° F)

Response Time

  • 250 milliseconds

Span & Zero Effect

  • Thermal Coefficients: ± 0.015 % of Span/°F

Media

  • Clean, Non-Corrosive Dry Gases

NACE & NIST

  • NIST

Humidity

  • 10 to 95 % Relative Humidity, Non-Condensing

Burst Pressure

  • Overpressure Limits psid: 25 (kPa: 172.4, bar: 1.724)

Approvals & Certifications

  • CE
  • EMC Directive 2004/108/EC
  • IEC/EN 61326-1: Edition 1.0 Industrial, IEC/EN 61326-2-3: Edition 1.0 Annex BB Industrial

Storage Temperature

  • -40° to 82° C (-40° to 180° F)

Diaphragm Material

  • Silicone

Operating Temperature

  • -29° to 71° C (-20° to 160° F)

Power

  • 12-36 Vdc

Proof Pressure

  • Overpressure Limits psid: 15 (kPa: 103.4, bar: 1.034)

Environmental Protection

  • IP11
  • NEMA 2

Output

  • 1-5 Vdc, 3-Wire
  • 1-6 Vdc, 3-Wire
  • 4-20 mA, 2-Wire

Vibration Effect

  • Sweep: < ± 0.05 % of Full Scale (5 G at 0 to 60 Hz)

Adjustment

  • Potentiometers: ± 10 % of Full Scale

Electrical Connectors

  • Screw Terminal

Current

  • Supply: < 6 mA for Voltage Output

Pressure Range

  • Inches WC: -50 to 50

Mounting Position Effect

  • 0.1” WC: ± 0.50 % of Span/g
  • 0.25” WC: ± 0.25 % of Span/g
  • 0.5” WC & Higher: ± 0.10 % of Span/g

Pressure Type

  • Compound Pressure
  • Differential
  • Gauge

Enclosure, Body Material

  • 300 Series Stainless Steel

Accuracy

  • ± 0.25% of Span
  • ± 0.5% of Span

  • Breathing Apparatus Equipment
  • Fan Tracking
  • Filter Monitoring
  • Fume Hoods Control
  • HVAC Equipment
  • Lab/Clean Room Pressurization
  • Medical Lung Function
  • Very Low Velocity Measurements
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