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Model GL42 Low Differential Indicating Pressure Transmitter
Brand: Ashcroft IncThe 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
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
- Inches WC: -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 % Relative Humidity, 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
