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Part 1 - introduction – Dynasonics 901 Series Enhanced Ultrasonic Flow Meter User Manual

Page 7

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Rev. 04/02

-6-

D901/M

PART 1 - INTRODUCTION

The D901/M employs modular construction and provides
electrical safety for the operator. The display face
contains voltages no greater than 9 Vdc and the metal
work is electrically connected to Earth Ground. The
display face swings open to allow access to user
connections.

A rechargeable nickel-cadmium battery on the back of
the display board retains all user-entered configuration
values in memory for several years (at 25

°C), even if

power is lost or turned off. The ten year battery is
continually trickle charged whenever line power is
applied. A completely discharged battery recharges fully
after 48 hours of instrument operation.

The serial number and complete model number of your
D901/M is located on the inside of the transmitter’s front
cover. Should technical assistance be required, please
provide the Dynasoncs’ Customer Service Department
with this information.

User Safety

Battery Backup

Product Identification

Product Matrix