Model IXLdp Ultra-Low Differential Pressure Transmitter

Brand: Ashcroft Inc.

The Ashcroft Industrial IXLdp was designed for the measurement and control of very low pressure and flow in industrial and process plant environments. The Industrial IXLdp transmitter features a rugged NEMA 4X enclosure, built-in electrical terminal box isolated from the electronics and threaded process connections. 

The Ashcroft IXLdp transmitter utilizes a state-of-the-art variable capacitance sensor with a glass-clad silicon chip. 

The Si-GlasTM technology combines the high sensitivity of a variable capacitance transducer with the repeatability of a micromachined, single-crystal silicon diaphragm. 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.
Features
  • Certified 0.25% and 0.5% accuracy 
  • 0.1" to 200"-H2O pressure ranges 
  • Optional FM approval for hazardous locations 
  • NEMA 4X metal construction 
  • Six types of output signals available 
  • 5:1 turndown option 
  • On-board voltage regulation allows use of lower cost, non-precise, unregulated power supply 
  • Hazardous environments

Specifications

Accuracy

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

Applications

  • Building Energy Management
  • Comfort Control Systems
  • Fan Tracking
  • Filter Monitoring
  • Fume Hoods Control
  • Furnace/Stack Draft
  • HVAC Equipment
  • Laboratory / Clean Room / Hospital Room Pressurization
  • Laminar Flow
  • Leak Detection
  • Medical Equipment
  • Pollution Monitoring Equipment
  • Velocity Measurements

Approvals & Certifications

  • FM

Burst Pressure

  • psi: 50 (kPa: 344.7, bar: 3.44)

Compensated Temperature

  • -18° to 71° C (0° to 160° F)

Current

  • Supply: 2.6 mA Typical for Voltage Output

Damping Adjustment

  • 0 to 30 seconds

Diaphragm Material

  • Silicone

Electrical Connectors

  • Screw Terminal

Electrical Protection

  • Reverse Polarity

Enclosure, Body Material

  • 300 Series Stainless Steel

Environmental Protection

  • IP66
  • NEMA 4X

Humidity

  • 0 to 95% Relative Humidity

Media

  • Clean, Non-Corrosive Dry Gases

Mounting Position Effect

  • 0.1" WC: 0.8% of Span/g
  • 0.25" up to 0.5" WC: 0.5% of Span/g
  • 1" WC & Higher: 0.1% of Span/g

NACE & NIST

  • NIST

NPT Connection

  • 1/4" NPT Female

Operating Temperature

  • -29° to 85° C (-20° to 185° F)

Output

  • ± 2.5 Vdc, 3-Wire
  • ± 5 Vdc, 3-Wire
  • 0-5 Vdc, 3-Wire
  • 1-5 Vdc, 3-Wire
  • 1-6 Vdc, 3-Wire
  • 4-20 mA, 2-Wire

Power

  • 12-36 Vdc

Pressure Range

  • Inches WC: 0 to 200

Pressure Type

  • Compound Pressure
  • Differential
  • Gauge

Proof Pressure

  • psi: 20 (kPa: 137.9, bar: 1.37)

Response Time

  • 250 milliseconds
  • Fast Response: 8 milliseconds

Span & Zero Adjustments

  • ± 10% of Full Scale

Span & Zero Effect

  • For ± 0.25% Accuracy: ± 0.01% of Span / °F
  • For ± 0.5% Accuracy: ± 0.02% of Span / °F

Stability

  • Maximum

Static Pressure

  • Maximum

Static Pressure Effect

  • < 0.5% of Span

Storage Temperature

  • -40° to 98.8° C (-40° to 210° F)

Turndown

  • 5:1

Update Time

  • Warm-Up Time: < 1 second

Vibration Effect

  • Sweep: < 0.2% of Span/g (10 to 130 Hz)
show more