AST AST46SW Datasheet

TM

Explosion-Proof

AST46SW SPDT Solid State Pressure Switch

The Model 46SW is a high accuracy Explosion-proof Pressure Switch, designed for use in
a variety of applications. Applying digital compensation, this product offers top performance
over a wide temperature range. Utilizing Krystal Bond Technology™, the sensing element
will measure pressure in the most extreme temperature conditions. Where other sensor
technologies will freeze or boil, the AST46SW uses a one piece stainless steel sensor to
offer continuous operation. If linearity and repeatability are critical for your application, this
product will exceed your expectations at an affordable price.

Environmental Data

Temperature

Operating -40 to 85°C (-40 to 185°F)

Storage -50 to 105°C (-58 to 221°F)

Thermal Limits

Compensated Range -20 to 70°C ( -4 to 158°F)

Other

Shock 100G, 11 msec, 1/2 sine

Vibration 10G peak, 20 to 2000 Hz.

EMI/RFI Protection: Yes

Rating: IP-66

Benefits

CSA30 (UL1203 / FM3615) Class I Div



1 and Zone 1 Group IIC Explosionproof ­Groups A, B, C, D

ANSI 12.27.08-1 Single Seal Approved



ASIC Compensation 

Superb Temperature Performance 

Wide Operating Temperature 

Excellent Accuracy 

High Proof and Burst Pressure 

Factory Sealed 

Applications

Well Optimization



Oil and Gas Pipelines 

Drilling Platforms 

CNG / Hydrogen Fill Stations 

Paint Booths 

RTU 

Combustion Controls 

Performance @ 25°C (77°F)

Error Tolerance <±1.0% BFSL of line pressure

Over range Protection 2X rated line pressure, standard*

Burst Pressure 5X or 60,000PSI of line pressure, whichever is less

Pressure Cycles > 100 million full pressure cycle

*For higher proof pressures, contact factory

Electrical Data

Excitation 10-28VDC

Current Consumption <10mA

Set Point See Chart on page 2

Output Load 1 Amp., Resistive

Reverse Polarity Protection Yes

American Sensor Technologies • 450 Clark Dr., Mt. Olive, NJ 07828 • phone [phone] • fax [phone] • email: [e-mail]

TM

Ordering Information

BLUE

RED

WHITE

N/O

N/C

1A Max,
Resettable
Fuse Protected

BLACK

SUPPLY +

SUPPLY -

GREEN

1 Amp Output

46SW 05 E T 1 00025

Series Type

Process Connection

A= 1/4"-18 Male NPT
B= 1/8"-27 Male NPT
C= 1/4"BSPP
W= F250C Female Autoclave

System Pressure

Insert 2 digit code (chart 1)

Pressure Unit

P= PSI

Switch Congurations

E= SPDT [Form C]

Electrical Connection

T= 2ft. 18 AWG wires
U= 4ft. 18 AWG wires
W= 2 Meter 18 AWG wires

Wetted Material**

0=17-4PH 1=316 L 2= Inconel 718

Pressure Reference

0= Sealed Gauge
G= Vented Gauge Pressure

Switching Point Pressure:

A

Insert 5 digit code (chart 2) [5-95% of system line pressure]

P

G

R

05

000

-Z

Switching Direction

F= Falling
R= Rising

Hysteresis:

Options

No Options= 000

Approval

-Z= Add “-Z” for CRN Registered to ANSI/ASME B31.3. Contact factory for material, pressure, and process connection options.

Insert 2 digit code (example: 1% is 01) [1% of line pressure minimum]

Chart 1 Chart 2

50

100 02 50 00050

+

250 03 100 00100

500 04 250 00250

1000 05 500 00500

3000 06 1,000 01000

5000 07 2,500 02500

7500 08 5,000 05000

10,000 09 10,000 10000

System Pressure

15,000 10

20.000 11

Code

01

+

25

00025

Code

Switching Pressure

+

For pressures not shown, please consult factory.

WiringPressure Ranges

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© 2014 American Sensor Technologies Inc. AST46SW 01/30/2014.

All specications subject to change without notice.