Ashcroft GC31 Specifications
Data Sheet
GC31 Ultra-Compact Digital Transducer
FEATURES
Combination of digital pressure gauge, switch
and transducer
Simple “push-button” configurability allows user
to adjust switch settings and analog scaling
Numerous standard ranges available
TYPICAL USES
Hydraulic presses
Stamping equipment
Lifts
Tire press vulcanization
Pressure monitoring
Water, refrigerant or ammonia based cooling systems
Pressure monitoring on lubrication systems
PERFORMANCE SPECIFICATIONS
Reference
Temperature:
Analog Output: 1-5 Vdc
Accuracy: ±1.0% of span
73°F (23°C)
Accuracy includes linearity, hysteresis and
repeatability (URL)
GC31
Pressure Transducer
Response Time: 50 ms
Output Resolution: 25 mV
Analog Scaling: User may configure analog output scaling to any
range within F.S. of sensor range
Pressure Switch Output:
Type: NPN or PNP open collector up to 30 Vdc/80 mA
Setting Accuracy: ±1.0% of span (URL)
Number of Contacts: 2
Time Delay: 5 ms-2 sec (selectable)
Hysteresis: Variable deadband (by user)
Switch Setting: User may adjust switch actuation and dead-band to
any points within F.S. sensor range
Display:
Type: 3½ digit, 10 mm LED
Accuracy: ±1.0% of span + last digit (URL)
Display Setting:
CE Compliance:
ENVIRONMENTAL SPECIFICATIONS
Temperature
Effects:
(ref. 73°F (23°C))
Temperature
Limits:
Humidity:
User may re-configure display scaling, set to capture
MIN or MAX value, and adjust display update rate
EN61326-1 2006, EN61326-2-3 2006
Zero/Span: ±0.03% span/F (±0.05% F.S./C)
Storage:
Operating:
Compensated:
0-85% RH, Non-condensing
–22°F to 140°F (–30°C to 60°C)
–4°F to 140°F (–20°C to 60°C)
14°F to 122°F (–10°C to 50°C)
KEY BENEFITS
• Ultra-compact indicating transducer with
analog scaling and switch options
• Field-proven thin film sensor
• Monitors a wide variety of applications
FUNCTIONAL SPECIFICATIONS
Overpressure:
<500 psi
>1,000 psi
ELECTRICAL SPECIFICATIONS
Power Supply Requirements:
Supply Voltage: 11-27 Vdc
Current
Consumption:
Switch Contacts: (2) NPN or PNP open collector outputs
NPN: 30 Vdc / 80 mA (Max.)
PNP: Voltage drop 1 Vdc (Max.) / 80 mA (Max.)
Proof:
2 X Range (URL)
1.5 X Range (URL)
30 mA (Max.)
Burst:
8 X Range (URL)
8 X Range (URL)
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2019 Ashcroft Inc. GC-31_trans_ds_RevB_Ltr_03-13-19
ashcroft.com
of 31
info@ashcroft.com
1.800.328.8258
Data Sheet
GC31 Ultra-Compact Digital Transducer
PHYSICAL SPECIFICATIONS
Pressure Connection:
Environmental
Rating:
¼ NPT Male
IP40
Weight: Approx. 110 grams
Mounting: Panel mounting bracket included
WETTED MATERIAL
Diaphragm
Process Connection
17-4PH SS 304 SS
NON-WETTED
ABS, polycarbonate, aluminum
Media Compatibility
Fluids and gases compatible
with 316 SS (sensor housing) and
17-4PH SS (sensor diaphragm)
Enclosure
(Back connect only)
Electrical
Connection Size:
6´ cable pigtail
OPTIONAL FEATURES
Calibration Report: 9 point traceable calibration report
Featuring highly
reliable CVD thin
film pressure
sensing technology
ORDERING CODE Example:
Model
GC31 - Ultra -compact digit al pressure sensor GC31
Accuracy
7 - ±1.0% of span 7
Pressure Fitting
M02L - ¼ NPT Male w⁄ lower connect
M02B - ¼ NPT Male w⁄ back conne ct M02B
Output Signal
1N - 1-5 Vdc: Analog w/2X NPN Type switches 1N
1P - 1-5 Vdc: Analog w/2X PNP Type switches
Electrical Connection
F4 - 6’ (2m) cable F4
Pressure Range
Compound
15#&V - Vac-15 psig 15#&V
75#&V - Vac-75 psig
150#&V - Vac-150 psig
300#&V - Vac- 300 psig
Gauge
50#G - 0- 50 psig
100#G - 0-100 psig
150#G - 0-150 psig
300#G - 0 -300 psig
500#G - 0 -500 psig
1000#G - 0-1,000 psig
1500#G - 0-1,500 psig
Opti on (if i ncluding an optio n(s) mu st include an “X’’)
RH - Traceable 9 point calibration report
GC31 7 M02B 1N F4 15#&V – XRH
X__
RH
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2019 Ashcroft Inc. GC-31_trans_ds_RevB_Ltr_03-13-19
ashcroft.com
of 32
info@ashcroft.com
1.800.328.8258
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