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 +1 800 522 6752
[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.
© 2016
TE Connectivity Ltd. family of companies
All Rights Reserved.
Rev 00
06.22.2016
