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Ashcroft A4 Intrinsically Safe and Non-Incendive Pressure Transmitter

Our Price: $432.17

Item Number: A4

Manufacturer: Ashcroft

Part Number: A4

Product Options

* denotes required field

Enclosure Selection*

Accuracy and Temperature Range Selection*

Pressure Fitting Selection*

Electrical Termination Selection*

Pressure Range Selection*

Pressure Type Options*

Calibration Options

Calibration Not Included

Standard Calibration (+ $75.00)

ISO 17025 Accredited Calibration Certificate (+ $120.00)

Variation Options

Non-Standard Pressure Range Calibration (10 pc. minimum) (+ $60.89)

Cleaned for Oxygen Service (+ $47.70)

17-4PH SS

Quantity:

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Ashcroft A4 Intrinsically Safe and Non-Incendive Pressure Transmitter

The Ashcroft® A4 pressure transmitter is ideal for a broad spectrum of pressure sensing requirements where Intrinsically Safe or Non-Incendive hazardous location ratings are required. The Ashcroft® A4 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.

Features

Choice of .25, .50 or 1.0% accuracy
Intrinsically and non-incendive approvals, FM and CSA
Pressure ranges from 5 psi through 10,000 psi
CE mark is standard
316L SS wetted materials
304 SS case
Output 4-20 mA
Optional absolute pressure ranges available
Zero and span access

Applications

Oil field equipment
Upstream oil and gas production
Natural gas compression and transfer control
Alternative energy projects

Technical Specifications

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         (–40 to 257°F)
Process:          –40 to +125°C               (–40 to 257°F)
Operating:       –40 to +125°C         (–40 to 257°F)
Compensated*:–20 to +85°C                 ( –4 to 185°F)
*Consult factory for other options
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
Response 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:
Shock:           100g Peak, 11ms
Random:        10g RMS, 20-2000Hz
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
0#/vac. to 300 psi           1.5 x F.S.       min. 2 x F.S.
500-10,000 psi                1.2 x F.S.         1.5 x F.S.
*For higher overpressure ratings use XK8 option.

ELECTRICAL SPECIFICATIONS
Output Signal:       Supply Voltage: (unregulated)
      Minimum Maximum
4-20mA*     (2 Wire)       12Vdc               30Vdc
*For Intrinsically Safe see entity parameters for supply voltage
and load limits. Refer to Ashcroft A4 Installation & Maintenance
document “I&M011-10166-A4.”
Power Requirements:
See load chart page 2
Electrical Terminations: See To Order section (reverse.)
for options
Circuit Protection: Reverse polarity and mis-wire protected
Insulation Resistance (Circuit to Case): 100Mohm @ 30Vdc

PHYSICAL SPECIFICATIONS
Case: Material 304SS
Wetted Materials: 316L SS diaphragm and pressure port,
optional 17-4PH SS diaphragm and 316L SS pressure port
(see How to Order Section).
Ingress Protection Rating:
Enclosure                         Code                 Rating
Basic                                 (S) IP65, NEMA 4X
All Welded (w/o Z/S)          (W)               IP67, NEMA 6

Ashcroft A4 Data Sheet

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