Model A2X Explosion/Flame Proof
Pressure Transmitter
APPLICATIONS:
Oil field equipment, upstream oil and
gas production, natural gas compression
and transfer control, alternative energy
projects
FEATURES:
• FM, cUL and ATEX listed
• Choice of 0.25, 0.50 or 1.0% accuracy
• Pressure ranges from 5 psi through
10,000 psi
• CE mark
• 316L SS wetted materials, 17-4 PH
optional
• 304 SS case
• Six output signals to choose from
• Optional absolute pressure ranges
available
LOOK FOR THESE MARKS
ON OUR PRODUCTS
The Ashcroft® A2X pressure transmitter
is ideal for a broad spectrum of pressure
sensing requirements requiring approvals
for explosion/flame proof.
The Ashcroft® A2X is designed and
manufactured to provide the user with
accurate, reliable, and stable output data.
This is accomplished through the use of
an on board microprocessor, that is programmed during a unique digital compensation process, to provide extremely linear and precise performance over the
entire specified pressure and temperature
range.
PERFORMANCE SPECIFICATIONS
Reference temperature 70°F (21°C)
Accuracy, Three Classes (% Span): ±.25
±0.5 ±1.0
Includes non-linearity (Terminal Point Method), hysteresis,
non-repeatability, zero offset and span setting errors
Best Fit Straight Line* (BFSL):
±.20
±.40 ±.50
Includes non-linearity hysteresis, non-repeatability errors
*Add ±.05% for ranges above 5000 psi
Stability:
ͨ ±0.25% Span/year @ reference conditions
Durability: Greater than 10 million cycles
ENVIRONMENTAL SPECIFICATIONS
Temperature Limits:
Storage:
–40 to +125°C
Process:
–40 to +125°C
Operating:
–40 to +125°C
Compensated*:–20 to +85°C
(–40 to 257°F)
(–40 to 257°F)
(–40 to 257°F)
( –4 to 185°F)
Temperature Effects: –20 to +85°C (–4 to 185°F)
• 1.0% of Span for .25% Accuracy Class
• 2.0% of Span for .50% and 1.0% Accuracy Classes
Humidity Effects: No performance effects from
0 to 95% relative humidity, non-condensing,
0-100% RH with “W” enclosure.
*Consult factory
FUNCTIONAL SPECIFICATIONS
Respone Time: <2ms
Pressure Ranges: Vacuum, gauge, compound and absolute
pressure from 0-5 psi through 0-10,000. Equivalent ranges
in bar available. See order guide section (reverse.)
Vibration Effect:
100g Peak, 11ms
Shock:
10g RMS, 20-2000Hz
Random:
Sweep:
50-2000Hz, 5g peak
Position Effect: ± 0.02% Typical
CE Mark (standard): EN 61326:1997 + A1: 1998 Annex A
Heavy Industrial Immunity (Annex A, Table A.1)
Light Industrial/Residential Emission (Table 4)
Overpressure (F.S.)*:
Proof
Burst
1.5 x F.S.
min. 2 x F.S.
0#/vac. to 300 psi
1.2 x F.S.
1.5 x F.S.
500-10,000 psi
*For higher overpressure ratings use XK8 option.
See page 2 for additional option.
ELECTRICAL SPECIFICATIONS
Output Signal:
Supply Voltage: (unregulated)
Minimum
Maximum
(3 Wire)
12Vdc
36Vdc
(3 Wire)
14Vdc
36Vdc
(3 Wire)
10Vdc
36Vdc
(3 Wire)
10Vdc
36Vdc
(2 Wire)
12Vdc
36Vdc*
(3 Wire)
4.5Vdc
5.5Vdc
0-5Vdc
0-10Vdc
1-5Vdc
1-6Vdc
4-20mA
0.5-4.5
Ratiometric
*30Vdc max for Intrinsically Safe installations
Power Requirements:
Supply Current: <5mA for voltage outputs
Electrical Termination:
1/2 NPT male conduit with flying leads or shielded cable
Circuit Protection: Reverse polarity and mis-wire proected
Insulation Resisance (Circuit to Case): 100Mohm @ 30Vdc
PHYSICAL SPECIFICATIONS
Case: Material 304SS
Wetted Materials: 316L SS diaphragm and presure port,
optional 17-4PH SS diaphragm and 316L SS pressure port
(see How to Order Section).
Ingress Protection Rating: IP65; NEMA 7,9
HAZARDOUS AREA CERTIFICATIONS
Explosion Proof – cUL (USL/CNL): Specify A2X
Class I, Div. 1 & 2, Groups A, B, C and D
Class II, Div. 1 & 2, Groups E, F and G
Flame Proof – ATEX: Specify A2X
II 2 G
Ex d IIC T4
NOTE: For 4-20mA units following approvals also apply:
Intrinsically Safe – FM/CSA:
Class I, Div. 1
Class I, Div. 2, Non-Incendive
Refer to Ashcroft drawing #825A022 for wiring
and installation requirements.
NOTE:
*Consult factory for other options
BULLETIN A2X-1
Refer to Ashcroft Model A2 for Heavy Industrial,
non-Hazardous rated configurations and Ashcroft Model A4
for Intrinsically Safe/non-Incendive applications.
All specifications are subject to change without notice.
All sales subject to standard terms and conditions.
© 2012 Ashcroft Inc., Rev. 07/12
Ashcroft Inc., 250 East Main Street, Stratford, CT 06614 USA
Tel: 203-385-0648 • Fax: 203-385-0408
email: info@ashcroft.com • www.ashcroft.com