TE Connectivity AST46DS User manual

TE CONNECTIVITY SENSORS /// AST46DS OPERATING INSTRUCTIONS 03/2019
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OPERATING INSTRUCTIONS
AST46DS Explosionproof Pressure Transducers / Transmitters
with Display for use with Liquids and Gases
*Gauge and vacuum reference units not suitable for Class II. Refer to data sheet.
Sira 15ATEX1073X
Ex db IIC T5 Gb
Class I, Zone I, AEx d IIC T5 Gb
Class I, Div. 1, Groups A, B, C, D T5
Class II, Div. 1, Groups E, F, G; Class III*
Ambient Temp: -40 to 85°C
Process Temp: -40 to 125°C
Conduit seal is required within 18 inches
for Group A installations
Seal not required for Group B, C & D
Installations
Single Seal
IECEx CSA 15.0005X
CSA C22.2 No. 30-M1986
CAN/CSA-C22.2 No. 61010-1
CAN/CSA-C22.2 No. 60079-0
CAN/CSA-C22.2 No. 60079-1
ISA S82.02.01
ANSI/ISA 60079-0
ANSI/ISA 60079-1
ANSI/ISA 12.27.01
EN 60079-0:2018
EN 60079-1:2014
IEC 60079-0:2017
IEC 60079-1:2014

OPERATING INSTRUCTIONS
AST46DS
TE CONNECTIVITY SENSORS /// AST46DS OPERATING INSTRUCTIONS 03/2019
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WARNING & IMPORTANT SAFETY INSTRUCTIONS
This is the safety alert symbol. It is used to alert you to
potential personal injury hazards. Obey all safety messages
that follow this symbol to avoid possible injury or death.
DANGER indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
WARNING indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION used with the safety alert symbol, indicates a
hazardous situation which, if not avoided, could result in minor
or moderate injury.
ELECTRICAL INSTALLATION
EXPLOSION HAZARD
Do not install, repair or uninstall equipment unless power has been switched off and the area is known to be non-hazardous.
This equipment must be powered by a Nonhazardous live source in accordance with CAN/CSA-C22.2 No. 61010-1-04 e.g.
limited energy source, or a Class 2 Source.
Do not open when an explosive atmosphere may be present.
Please review the following wiring instructions. For U.S. installations, product case ground screw on the interior or exterior of
the housing must be bonded to ground according to Article 501 & 505 of the NEC
Recommended Wire Gauge: 18-22 AWG
Remove rear cover by hand to access terminal blocks.
Run wire through conduit connection and feed toward terminal blocks. Conduit should be installed over wire / cable per
electrical code requirements.
Use a Phillips-Head screw driver to loosen terminal screws
Connect wires to the proper terminal according to chart and tighten screw.
Ensure either the internal or external case ground screw is bonded to ground according to Article 501 & 505 of the NEC.
Install conduit plug if one side of electrical connection is unused.
Close cover
Field Service
The AST46DS has no field serviceable parts. For technical issues or questions, please contact the factory.

OPERATING INSTRUCTIONS
AST46DS
TE CONNECTIVITY SENSORS /// AST46DS OPERATING INSTRUCTIONS 03/2019
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Special Conditions for Safe Use
i. The product label indicates that the process temperature range is -40°C to +125°C. Taking this into account, the
user/installer shall take precautions that ensure the operating service temperature of the overall Pressure Transducer
assembly is between -40°C to +92°C.
ii. This product is manufactured from light metal and in rare cases, potential ignition sources or sparks may result due to
impact or friction. User is recommended to use caution during installation.
iii. Maximum working pressure of the sensor is 20,000 psi (1379 bar).
Process Connection Installation
The standard process connection for the AST46DS is 1/2” NPT male. Use the 7/8” hex above the thread of the process
connection to install into the process. Do not use the body / housing for installation.
Wiring
Output
Type
Pin 1
Pin 2
Pin 3
Electrical Power
Requirement
1-5V
+V
-V
Signal Output
8-28VDC
4-20mA
+Signal
-Signal
Not Connected
8-28VDC

OPERATING INSTRUCTIONS
AST46DS
TE CONNECTIVITY SENSORS /// AST46DS OPERATING INSTRUCTIONS 03/2019
Page 4
Zero Adjustment
The Zero button will adjust the output signal and display to the base reading range.
Ensure the product is in a non-hazardous environment.
Remove the front display cover by hand to access the “Zero” button.
Connect the AST46DS using standard wiring instructions with an 8-28VDC power supply.
Do not remove power from the product during the Zero adjustment process. If “CHECKBYTE
ERROR” displays, contact factory.
Make sure that the process connection is not pressurized and is open to atmosphere to reset
to 0 PSIG. If the zero pressure is adjusted with pressure, it can be calibrated up to 5% of the
full span (i.e. 5 PSI for a 100 PSI transmitter). “Zero adjustments above or below 5% will
result in an “OUT OF RANGE” condition displayed on the LCD.
Press the “Zero” button until the display reads “ZERO”. The AST46DS will then read 0.0 for
pressure units if the calibration was started in units, 1.000 for a 1-5V output, or 4.00 for a 4-
20mA output. (Compound and bi-directional transmitters will “zero” to the factory calibrated
zero offset).
Re-install the front display cover.
Units
Ensure the product is in a non-hazardous environment.
Remove the front display cover to access the “Units” button.
Connect the AST46DS using standard wiring instructions with an 8-28VDC power supply.
Press the Units” button to cycle between the display options until you reach the desired units.
Re-install the front display cover.
Over Pressure Display
At 5% over-pressure, the display will begin to blink at 1/2Hz.
Removing Power
If you power off AST46DS, it will default back to the last setting for the display and zero
calibration.
NORTH AMERICA
Measurement Specialties, Inc.,
a TE Connectivity Company
6801 Kaiser Drive
Fremont, CA, 94555
Tel [phone]
customercare.m[email protected]
te.com/sensorsolutions
Measurement Specialties, Inc., a TE Connectivity Company.
AST, TE Connectivity, and TE connectivity (logo) are trademarks. All other logos, products and/or company names referred to herein might be trademarks of their respective owners.
The information given herein, including drawings, illustrations and schematics which are intended for illustration purposes only, is believed to be reliable. However, TE Connectivity makes
no warranties as to its accuracy or completeness and disclaims any liability in connection with its use. TE Connectivity‘s obligations shall only be as set forth in TE Connectivity‘s Standard
Terms and Conditions of Sale for this product and in no case will TE Connectivity be liable for any incidental, indirect or consequential damages arising out of the sale, resale, use or misuse
of the product. Users of TE Connectivity products should make their own evaluation to determine the suitability of each such product for the specific application.
© 2016TE Connectivity Ltd. family of companies All Rights Reserved. Rev 00
06.22.2016