Data Sheet
GC30 Differential Pressure Transducer
FEATURES
Combination of digital pressure gauge, switch and
transducer
Simple “push-button” configurability allows user to
adjust switch settings, analog scaling
Numerous standard ranges available
TYPICAL USES
Filter Monitoring
Clean Room Pressure Differential
Vacuum/Suction Pressure Sensing & Control
Fan Speed Control
Alarm and Control
PERFORMANCE SPECIFICATIONS
Reference
Temperature:
Analog Output: 1-5 Vdc
Accuracy: ±1.5% of span
Response Time: 50ms
Output Resolution: 25mV
Analog Scaling: User may configure analog output scaling to any
Pressure Switch Output:
Type: NPN/PNP open collector up to 30 Vdc/80 mA
Setting Accuracy: ±1.5% of span (URL)
Number of Contacts: 2
Time Delay: 5ms-2sec (selectable)
Hysteresis: Variable deadband (by user)
Switch Setting: User may adjust switch actuation and dead-band to
Display:
Type: 3½ digit, 10mm LED
Accuracy: ±1.5% of span + last digit (URL)
Display Setting:
ENVIRONMENTAL SPECIFICATIONS
Temperature
Effects:
(ref. 73°F (23°C))
Temperature
Limits:
Humidity:
73°F (23°C)
Accuracy linearity, hysteresis and repeatability (URL)
range within F.S. of sensor range
any points within full scale sensor range
User may re-configure display scaling, set to capture
MIN or MAX value, and adjust display update rate
Zero/Span:
±0.09%/°F (±0.15%/°C): ±2.5˝ W.C., 0/2.5˝ W.C.
and below
±0.06%/°F (±0.10%/°C): ±5.0˝ W.C., 0/5.0˝ W.C.
and above
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)
GC30 Differential
Pressure Transducer
KEY BENEFITS
• Ultra-compact design
• User may configure analog output scaling to
any range within full scale of sensor range.
FUNCTIONAL SPECIFICATIONS
Max Static (Line)
Pressure:
7.5 psi (50 kPa)
CE Compliance EN61326-1 2006, EN61326-2-3 2006
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:
7.5 psid
(50 kPa)
30 mA (Max.)
Burst:
25 psig
(170 kPa)
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2019 Ashcroft Inc. GC-30_transducer_ds1.0, Rev. A, 04/19
of 31
ashcroft.com
info@ashcroft.com
1.800.328.8258
Data Sheet
SENSOR CROSS SECTION
GC30 Differential Pressure Transducer
PHYSICAL SPECIFICATIONS
Pressure Connection
Size:
Environmental
Rating:
Weight: Approx. 75 grams
Mounting: Panel mounting bracket included
Electrical
Connection:
WETTED MATERIAL
Clean, dry air/gas compatible with Aluminum, Titanium, ABS, Ceramic,
Silicon & Silicone RTV. NOT FOR USE ON LIQUIDS
NON-WETTED
4mm barb
IP40
6´ cable pigtail
Media
Enclosure
ABS, polycarbonate, aluminum
Featuring a highly reliable variable capacitance sensor using the patented Ashcroft®
Si-Glass® sensor. This ultra-thin single crystal diaphragm provides inherent sensor
repeatability and stability.
SENSOR CROSS SECTION
The silicon diaphragm sensor has no glues or
other organics to contribute to drift or
mechanical degradation over time.
ORDERING CODE Example:
Model
GC30 - Ultra-compact dig ital dif ferential pressure sensor GC30
Accuracy
9 - ±1.5% of span 9
Pressure Connection
M5B - 4mm ID Ba rb M5B
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
Bidirectional
P25IWL - ±0.25 IWC P25IWL
P5IWL - ±0.5 IWC
1IWL - ±1.0 IWC
2IWL - ±2 IWC
5IWL - ±5 IWC
10IWL - ±10 IWC
25IWL - ±25 IWC
Differential
P25IW - 0.25 IWC
P5IW - 0.5 IWC
1IW - 1.0 IWC
2IW - 2 IWC
5IW - 5 IWC
10IW - 10 IWC
25IW - 25 IWC
Opti on (if i ncluding an optio n(s) mu st include an “X’’)
RH - Traceable 9 point calibration report
GC30 9 M5B 1N F4 P25IWL – XRH
X__
RH
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2019 Ashcroft Inc. GC-30_transducer_ds1.0, Rev. A, 04/19
of 32
ashcroft.com
info@ashcroft.com
1.800.328.8258
Data Sheet
1.18
30
1.18
30
Ø 0.33
8.50
1.30
33
1.42
36
0.55
14
0.79
20
0.79
20
2-M3
Depth 3.5mm
2-M5
Depth 4.0mm
PRESSURE SENSOR
OUT1
in. H2O
H
L
MODE
ADJ.
OUT2
GC30 Differential Pressure Transducer
DIMENSIONS in [ ] are millimeters
For reference only, consult Ashcroft for specific dimensional drawings
Panel Mounting Kit (included)
Panel adapter 1 (X1) Panel adapter 2 (X1)
Barb Dimensions
7
0.28 Hex
14
7
0.28
0.16
4
4mm Barb (x 2)
(suitable for 4mm (0.156˝) I.D. tubing)
Notes:
1. Unit to be shipped with panel mount adaptor in box
2. Unit to be supplied with 4mm fittings in box
0.55
M5x0.8
36
1. 42
36
1. 42
Panel cutout dimension
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
©2019 Ashcroft Inc. GC-30_transducer_ds1.0, Rev. A, 04/19
of 33
ashcroft.com
info@ashcroft.com
1.800.328.8258
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