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AST4300

Non-Incendive Pressure Transmitter - Class 1 Div 2

AST4300 Class 1 Div 2 Non-incedive Pressure Transmitter with Single Seal product photo

The AST4300 is a Class I Division 2 Non-Incendive pressure transmitter for use in hazardous areas. In addition to its rugged construction and industry-leading price-to-performance ratio, the AST4300 pressure transmitter is the solution for pressure measurement for a variety of applications.

AST can package the AST4300 pressure transmitter for indoor or outdoor use. It utilizes AST's proprietary Krystal Bond™ Technology , a one-piece stainless steel sensing element that offers excellent long-term stability and repeatable results. This MEMSMicro Electro-Mechanical System technology completely isolates the media to all 316L stainless steel or all Inconel718, depending on the application. A variety of pressure port threads are available including 1/4" NPT and 1/2" NPT. Output signals are available for long transmissions (4-20mA) or low power (voltage) applications.

The AST4300 pressure transmitter is also available with CSA Single Seal Approval to save customers the added cost of secondary seals required for Canadian installations.

Note: ABS approval with CSA approved version.
See CSA PDF for product selection.

UL Certified mark

CSA Certified mark

ABS Certified Mark

Benefits

- Krystal Bond™ Technology
- UL/cUL 1604 Class 1 Division 2 Non-Incendive Groups A, B, C, D
- CSA 213 Class 1 Div 2 Non-Incendive Groups A, B, C, D with Single Seal
- CE EN61326
- ABS (American Bureau of Shipping) Approved
- High Strength Stainless Steel Construction with all 316L
- No Oil, Welds or Internal O-rings
- Wide Operating Temperature Range
- Ranges from Vacuum to 10,000 PSI
- Low Static and Thermal Errors
- Unparalleled Price and Performance
- Compatible with Wide Range of Liquids and Gases
- EMI/RFI Protection
- ABS (American Bureau of Shipping) Approved
(CSA version)

Applications

- Refrigeration Pressure
- Water Management
- Off-Shore Platform ESD Compressor Systems
- Pressure Instrumentation
- Process Control
- Gas Compression & Storage
- Natural Gas Engine Pressure
- Oilfield SCADA Pressure Equipment
- Test Stands including Rocket Fuel Pressure
- Oxygen Pressure Measurement (316L SS)
- Hydrogen Fuel (316L)

Click Here For Wiring Information

Performance @ 25°C (77°F)

Accuracy¹

<±0.25% BFSL
<±0.5% BFSL for 7500 and 10000 PSI

Stability (1 Year)

±0.25%FS, typ

Overange Protection

2X Rated Pressure

Burst Pressure

5X or 20,000 psi (whichever is less)

Pressure Cycles

>100 Million

¹ Accuracy includes: Non-linearity, Hysteresis and Non-repeatability

Environmental Data

Temperature

Operating

-40 to 85°C (-40 to 185°F)

Storage

-40 to 100°C (-40 to 212°F)

Thermal Limits

Compensated Range

0 to 55°C (30 to 130°F)

Temp. Comp. Zero

<±1.5% of FS

Temp. Comp. Span

<±1.5% of FS

Other

Shock

100G, 11 msec, 1/2 sine

Vibration

10G peak, 20 to 2000 Hz.

EMI/RFI Protection

Yes

Rating

IP-66 (IP-67 optional)

Electrical Data

Output

4-20mA

1-5VDC, 1-6VDC

0-50mV

0.5-4.5V Ratiometric

Excitation

10-28VDC

5VDC typical

5VDC Regulated

Output Impedance

>10k Ohms

<100 Ohms, Nominal

1100 Ohms, Nominal

<100 Ohms, Nominal

Current Consumption

20mA, typ.

5mA, typical

<5mA

5mA, typical

Bandwidth

(-3dB): DC to 250 Hz

(-3dB): DC to 1kHz

(-3dB): DC to 5kHz, min

(-3dB): DC to 1kHz

Output Noise

<2mV RMS

Zero Offset

<±1% of FS

<±2% of FS

<±1% of FS

Span Tolerance

<±2% of FS

<±1.5% of FS

<±2% of FS

<±1.5% of FS

Output Load

0-800 Ohms
@10-28VDC

10k Ohms, Min.

>1M Ohms

10K Ohms, Min.

Reverse Polarity

Yes

Ordering Information

AST4300

00500

000

PSIG Measurement Range	Pressure Range Code	BARG Measurement Range	Pressure Range Code
-14.7 to 25**	V0025**	-1 to 2**	V0002**
0-25	00025	0-2	00002
0-50	00050	0-5	00005
0-100	00100	0-10	00010
0-200	00200	0-20	00020
0-250	00250	0-50	00050
0-300	00300	0-100	00100
0-500	00500	0-250	00250
0-1,000	01000	0-350	00350
0-1,500	01500	0-500	00500
0-2,500	02500	0-700	00700
0-3,000	03000
0-5,000	05000
0-7,500	7500
0-10,000	10000
Typical ranges. All ranges between 0-25 PSI and 0-10,000 PSI available.
**Compound ranges up to -14.7 to 500 PSI available. Please consult factory.

Series Type

Process Connection
A=1/4" NPT Male
B=1/8" NPT Male**
C=1/4" BSPP Male
I= 1/4" NPT Female
P=1/2" NPT Male

Pressure Range
Insert 5-digit pressure range code

Pressure Unit

B= BAR

K= kg/cm2

P= PSI

Outputs

1= 0.5-4.5V ratiometric	6= 1-6V
3= 1-5V	A= 10mV/V
4= 4-20mA (2 wire loop powered)

Electrical
I= DIN 43650A (mate included)
L= Conduit fitting, Cable 2 ft. (0.6m)
M= Conduit fitting, Cable 4 ft. (1.2m)
N= Conduit fitting, Cable 6 ft. (1.8m)
P= Conduit fitting, Cable 10 ft. (3.0m)

Wetted Material

0= 17-4PH

1= 316L

2= Inconel 718*

Options
000= No Special Options

Single Seal (add SS if you require CSA Single Seal & ABS Approval)

*Consult factory on availability.
** Not available under 50PSI or in 316L

Warranty

Workmanship - AST4300 non-incendive pressure transmitters have a limited one-year warranty to the original purchaser. AST will replace or repair, free of charge, any defective pressure transmitter. This warranty does not apply to any units that have been modified; misused, neglected or installed where the application exceeds published ratings. AST's sensors are made with pride in New Jersey, USA. If in the area please feel free to stop by for a visit!

Installation/Applications - The purchaser is responsible for media compatibility, functional adequacy, and correct installation of the transmitter.

Datasheet
w/ Dimensions

CSA Approved
Datasheet
w/ Dimensions

Accessories

AST4300

Benefits

Applications

Performance @ 25°C (77°F)

Environmental Data

Electrical Data

Ordering Information

Quick Contact

Warranty