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Model GL42 Low Differential Indicating
Pressure Transmitter
OOK FOR THIS
L
AGENCY MARK ON
OUR PRODUCTS
TWO Y EAR
WARRANTY
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 Time250msec, 1sec, 2sec or 5sec
• Optional NIST Traceable Calibration
Chart
APPLICATIONS:
The GL42 model utilizes Ashcroft’s
proven Si-Glas™ silicon variable capacitance sensor technology, ideal for applications where reliable, low differential pressure measurement is required with pressure from ±0.05˝ W.C. to 0 to 25.00˝ W.C.
TYPICAL APPLICATIONS:
• Filter monitoring
• Flow measurement
• Clean room monitoring
• Fume hoods
Featuring a highly reliable variable capacitance sensor using the patented Ashcroft
SiGlas®sensor. This ultra-thin single crystal
diaphragm provides inherent sensor repeatability and stability.
SENSOR CROSS SECTION
The silicone diaphragm sensor has no
glues or other organics to contribute to
drift or mechanical degradation over time.
®
PERFORMANCE SPECIFICATIONS
Reference condition: 77°F (25°C)
Accuracy*: ±0.50% or ±1.00% F.S. (URL)
(* includes linearity, hysteresis and repeatability)
Repeatability: ≤ ±0.1 % F.S.
Stability: </= 0.5% F.S. / Year
Zero / Span Adjustment: ±5% F.S.
Standard-Ranges (Unidirectional):
0.10˝ to 25.00˝ in H20
(See Pressure Range & Engineering Unit Table)
Standard-Ranges (Bidirectional):
±0.05˝ to ±15.0˝ in H20
(See Pressure Range & Engineering Unit Table)
ENVIRONMENTAL SPECIFICATIONS
Enclosure Rating: IP65
Temperature Limits:
Operating: –4/158°F (–20/70°C)
Storage: –40/194°F (–40/90°C)
Compensated: 35/129°F (2/54°C)
(10-90% R.H. non-condensing)
Temperature Coefficients:
Zero & Span
±0.06% / K within 35/129°F (2/54°C)
Ref. 77°F (25°C)
FUNCTIONAL SPECIFICATIONS
Static (line) Pressure: All Pressure Ranges
Proof: 14.5 psi (1 bar)
Burst: 24.65 psi (1.7 bar)
Max. Static: 24.65 psi (1.7 bar)
ELECTRICAL SPECIFICATIONS
LCD Display: 4 Digit
LCD Screen Dimensions:
Width: 1.77˝ (45mm) / Height: 0.75˝ (19mm)
LCD Character Size:
Height: 0.21˝ (5.4mm) / Width: 0.45˝ (11.5mm)
Output Signal: 4-20 mA ( 2 wire)
Supply Voltage: 19-36 Vdc (Nominal 24 Vdc)
Rangeability / Adjustment: Zero: ±33% F.S.
CE-Compliance: EN 61000-4-2, EN 61000-4-3
MECHANICAL SPECIFICATIONS
1/8˝ Female NPT or 1/4˝ Male Barbed Fitting
Electrical Connection:
½˝ Female DIN Cable Conduit (Standard)
PG9 Cable Gland (Option)
Enclosure: Nylon
Cable Connection Socket: Nylon
Front Foil: Polyester
Electrical Connection: Screw Terminal
Weight: 9.9 oz (308 g)
Mounting: Wall Mount (Standard)
DIN Rail (Option):
EN 50022 / EN 50035 / EN 50045
Panel Mount (Option)
Sensor Material: Silicon / Aluminum / Glass
Media: Clean, Dry Air / Non-Corrosive Gas
BULLETIN GL42-1
All spec ificatio ns are subject to cha nge without notice.
All sale s subject to standard terms and conditions.
© Ashcroft Inc. 2015 10/15
Ashcroft Inc., 250 E ast Main Street, Stratford, CT 06614 USA
Tel: 203-378-8281 • Fax: 203-385-0408
email: info@ashcroft.c om • www.ash croft.com
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PRESSURE PORTS
(1/4 BARBED FITTING)
ELECTRICAL CONNECTION
(1/2 NPT FEMALE THREAD)
("CD" option shown)
1.05
3.51
2.94
2.99
Ø
0.19
4 Places
1/8 NPT MALE
4.89
2.95
2.47
Model GL42 Low Differential Indicating
Pressure Transmitter
Dimensions (mm) Inches
TYPE
GL42 (5) (F01) (42) (CD) (W)
0.5%
ECTIO
N
N
CO
1
⁄8 Female NPT 4/20mA1⁄2 NPT Female Wall
CESS
O
PR
ACY
R
ACCU
O
N
TIO
A
MIN
TER
AL
N
SIG
N
ICAL MO
ELECTR
T
TPU
U
Conduit
(7) (MB2) (D)
1.00%
1
⁄4 Male (CG) DIN-Rail
Barbed Fitting Cable Gland
HOW TO ORDER
PROCESS OUTPUT ELECTRICAL PRESSURE
TYPE ACCURACY CONNECTION SIGNAL TERMINATION MOUNTING RANGE OPTIONS
U
O Pa/k
2
H
F
O
ES
CH
IN
Unidirectional
(P1IW) 0.10
(P25IW) 0.25
(P5IW) 0.50
(P75IW) 0.75
(1IW) 1.00
(2IW) 2.00
(2P5IW) 2.50
(3IW) 3.00
(5IW) 5.00
(10IW) 10.00
(15IW) 15.00
(25IW) 25.00
Bidirectional
(P05IWL) ±0.05
(P1IWL) ±0.10
(P25IWL) ±0.25
(P5IWL) ±0.50
(P75IWL) ±0.75
(1IWL) ±1.00
(2IWL) ±2.00
(5IWL) ±5.00
(10IWL) ±10.00
(15IWL) ±15.00
Pa
Unidirectional
(25PA) 25.00
(50PA) 50.00
(60PA) 60.00
(100PA) 100.00
(125PA) 125.00
(160PA) 160.00
(200PA) 200.00
(250PA) 250.00
(300PA) 300.00
(400PA) 400.00
(500PA) 500.00
(600PA) 600.00
(1KPA) 1.00
(1P6KPA) 1.60
(2KPA) 2.00
(2P5KPA) 2.50
(4KPA) 4.00
(5KPA) 5.00
(6KPA) 6.00
Bidirectional
(25PAL) ±25.00
(50PAL) ±50.00
(60PAL) ±60.00
(100PAL) ±100.00
(125PAL) ±125.00
(160PAL) ±160.00
(200PAL) ±200.00
(250PAL) ±250.00
(300PAL) ±300.00
(400PAL) ±400.00
(500PAL) ±500.00
(600PAL) ±600.00
(1KPL) ±1.00
(1P6KPL) ±1.60
(2KPL) ±2.00
(2P5KPL) ±2.50
(4KPL) ±4.00
(5KPL) ±5.00
(6KPL) ±6.00
S
N
PTIO
O
(NH)
Stainless Steel Tag with
Customer Supplied Information
(HK)
Panel Mount
(Note: Only provided when
ordered with ‘W’ wall mount
version)
(RH)
9-Point NIST Traceable
Calibration Certificate
PRESSURE RANGE & ENGINEERING UNIT
G
TIN
N
BULLETIN GL42-1
GL42 5 MB2 42 CD W
All spec ificatio ns are subject to cha nge without notice.
All sale s subject to standard terms and conditions.
© Ashcroft Inc. 2015 10/15
25IW XRH
-
Ashcroft Inc., 250 E ast Main Street, Stratford, CT 06614 USA
Tel: 203-378-8281 • Fax: 203-385-0408
email: info@ashcroft.c om • www.ash croft.com
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