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GC55 Pressure Transducer

Data Sheet

All specifications are subject to change without notice. All sales subject to standard terms and conditions.

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©2022 Ashcroft Inc. GC-55_transducer_ds_RevD_11-24-22

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FEATURES

Bright LED display of pressure and switch status

All stainless steel wetted parts

Internal “push-button” configurability allows quick

user pressure range changes or relay adjustments

External “push-button” allows user to display P1, P2

or DP without opening cover

TYPICAL USES

Tank level pressure measurement

Pump controls

Compressor control

Filter monitoring

HVAC Hydronic cooling/heating systems

KEY BENEFITS

• Robust aluminum die cast housing

• Two sensor design well suited for high DP ranges

• Min./Max. feature records, low/high pressure

events

• Two polysilicon thin film sensors to achieve wet-

wet, high differential pressure measurements

• Monitors/controls a wide variety of wet/dry media

PERFORMANCE SPECIFICATIONS

Reference

Temperature:

75 °F (24 °C)

Analog Output:

4-20 mA or 1-5 Vdc

Accuracy:

±0.5% of span

Includes linearity, hysteresis and repeatability

Response Time:

20 ms

Output Resolution:

±0.2% of span

Stability:

±0.5%/year

Pressure Switch Output:

Number of Contacts: 2

Response Time:

20 ms-2.0 sec (by user)

Type:

TTL/CMOS up to 40 Vdc / 200 mA

Setting Accuracy:

±1.0% of span

Hysteresis:

Variable deadband (by user)

Display:

Accuracy:

±1.0% of span

Type:

3½ digits, 10 mm LED

ENVIRONMENTAL SPECIFICATIONS

Temperature

Limits:

Storage:

Operating:

Compensated:

−4 °F to 140 °F (−20 °C to 60 °C)

14 °F to 122 °F (−10 °C to 50 °C)

14 °F to 122°F (−10 °C to 50 °C)

Thermal

Coefficients:

(ref. 75°F (24°C))

Zero & Span: ±0.05% of span/°C

FUNCTIONAL SPECIFICATIONS

Static (Line) Pressure

Pressure Range:

75 to ≤300 psi

Proof:

2 X Range (URL)

Burst:

10 X Range (URL)

Single Side (Differential)

Pressure Range:

75 to ≤300 psi

Proof:

2 X Range (URL)

Burst:

10 X Range (URL)

Vibration:

5g’s 150Hz

Shock Effect:

10g’s 16 ms

Static (Line)

Pressure Effects:

None

ELECTRICAL SPECIFICATIONS

Output Signal

(Current):

4-20 mA (3 Wire): 15-27 Vdc 80 mA

Output Signal

(Voltage):

1-5 Vdc (3 wire): 11-27 Vdc 60 mA

Rangeablility/

Adjustment:

Zero: −5% to 105% of span

Span: –5% to 105% of span

(Accuracy based upon F.S. (URL) value)

Switch Contacts:

(2) Photo M0S relay outputs; Load 200 mA (Max.),

40 Vdc; Hysteresis (variable)

GC55

Pressure Transducer