Model GL42 Low Differential Indicating Pressure Transmitter

Brand: Ashcroft Inc

The Ashcroft® GL42 low differential indicating pressure transmitter is used for measurement and control of extremely low pressures and flow. 

Incorporating variable capacitance sensor with patented Si-Glas™ technology, this ensures high sensitivity and performance. 

A perfect product when reliable measurement and indication is needed.
Features
  • Excellent long term stability 
  • Four digit LCD display 
  • Field-selectable units (i.w.c., pascal, millibar) 
  • 4-20 mA output (2-wire) 
  • IP65 housing 
  • Wall, panel or DIN rail mountable versions 
  • Adjustable display response time - 250 milliseconds, 1 second, 2 seconds or 5 seconds 
  • Optional NIST traceable calibration chart 

Model

Accuracy

Process Connection

Output Signal

Electrical Termination

Mounting

Range Type

Pressure Range

Inches WC: 0.1
  • Inches WC: 0.1
  • Inches WC: 0.25
  • Inches WC: 0.5
  • Inches WC: 0.75
  • Inches WC: 1
  • Inches WC: 2
  • Inches WC: 2.5
  • Inches WC: 3
  • Inches WC: 5
  • Inches WC: 10
  • Inches WC: 15
  • Inches WC: 25
  • Pa: 25
  • Pa: 50
  • Pa: 60
  • Pa: 100
  • Pa: 125
  • Pa: 160
  • Pa: 200
  • Pa: 250
  • Pa: 300
  • Pa: 400
  • Pa: 500
  • Pa: 600
  • kPa: 1
  • kPa: 1.60
  • kPa: 2
  • kPa: 2.50
  • kPa: 4
  • kPa: 5
  • kPa: 6

Pressure Range

Inches WC: ± 0.05
  • Inches WC: ± 0.05
  • Inches WC: ± 0.1
  • Inches WC: ± 0.25
  • Inches WC: ± 0.5
  • Inches WC: ± 0.75
  • Inches WC: ± 1
  • Inches WC: ± 2
  • Inches WC: ± 5
  • Inches WC: ± 10
  • Inches WC: ± 15
  • Pa: ± 25
  • Pa: ± 50
  • Pa: ± 60
  • Pa: ± 100
  • Pa: ± 125
  • Pa: ± 160
  • Pa: ± 200
  • Pa: ± 250
  • Pa: ± 300
  • Pa: ± 400
  • Pa: ± 500
  • Pa: ± 600
  • kPa: ± 1
  • kPa: ± 1.60
  • kPa: ± 2
  • kPa: ± 2.50
  • kPa: ± 4
  • kPa: ± 5
  • kPa: ± 6

Option

Optional Features

View Details
Part Number / SKU

    Specifications

    Brand

    Linearity

    • ± 0.5 % of Full Scale
    • ± 1 % of Full Scale

    Display

    • 4-Digit LCD

    Operating Temperature

    • -20° to 70° C (-4° to 158° F)

    Burst Pressure

    • psi: 24.65 (kPa: 170, bar: 1.7)

    Compensated Temperature

    • 2° to 54° C (35° to 129° F)

    Adjustment

    • Zero: ± 33 % of Full Scale

    Tube Connection

    • 1/4" Barbed Tube Fitting Male

    Output

    • 4-20 mA, 2-Wire

    Materials of Construction

    • Cable Connection Socket: Nylon
    • Polyester Foil (Front)

    Pressure Range

    • inH₂O: -15 to 25

    Span & Zero Effect

    • Adjustment: ± 5 % of Full Scale

    Temperature Coefficient

    • Zero & Span: ± 0.06 %/K within 2° to 54° C (35° to 129° F), Reference Temperature 25° C (77° F)

    Mounting

    • DIN Rail
    • Panel Mount
    • Wall Mounted

    Media

    • Clean, Dry Air
    • Non-Corrosive Dry Gases

    Enclosure, Body Material

    • Nylon

    Proof Pressure

    • psi: 14.5 (kPa: 100, bar: 1)

    Storage Temperature

    • -40° to 90° C (-40° to 194° F)

    Environmental Protection

    • IP65

    Repeatability

    • ± 0.5 % of Full Scale
    • ± 1 % of Full Scale
    • ≤ ± 0.1 % of Full Scale

    Static Pressure

    • Maximum

    NACE & NIST

    • NIST

    Accuracy

    • ± 0.5 % of Full Scale
    • ± 1 % of Full Scale

    Sensor, Probe Material

    • Sensor: Aluminum
    • Sensor: Glass
    • Sensor: Silicon

    Stability

    • ≤ 0.5 % of Full Scale Per Year

    Hysteresis

    • ± 0.5 % of Full Scale
    • ± 1 % of Full Scale

    Name Plate, Tag Material

    • Stainless Steel

    Humidity

    • 10 to 90 % RH, Non-Condensing

    Approvals & Certifications

    • CE EN 61000-4-2, EN 61000-4-3
    • RoHS

    Supply Voltage

    • 19-36 Vdc (Nominal 24 Vdc)
    • Nominal 24 Vdc

    NPT Connection

    • 1/8" NPT Female

    Electrical Connectors

    • 1/2" Female DIN Cable Conduit
    • PG9 Cable Gland
    • Screw Terminal

    • Clean Room Monitoring
    • Filter Monitoring
    • Flow Measurement
    • Fume Hoods
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