Dynasonics 902_903 Series Portable Doppler Ultrasonic Flow Meter - Manual (Page 9)

Rev. 10/08
- 7 - D902/3
PART 1 - INTRODUCTION
The D902/3 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. All user connections
are made through sealed, bulk-head plugs located on the
side of the D902/3 enclosure.
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 the
D902/3 are located on the inside of the transmitter cover.
Should technical assistance be required, please provide
the Dynasonics Customer Service Department with this
information.
User Safety
Battery Backup
Product Identification
Product Matrix
D 9 1 N A N
Measuring Units/
Transducer Type *
02) U.S.
03) Metric
12) U.S. (High Temp)
13) Metric (High Temp)
22) U.S. (Small Pipe)
23) Metric (Small Pipe)
32) U.S. (High Temp &
Small
Pipe)
33) Metric (High Temp &
Small
Pipe)
Power Supply
A) 115 VAC
B) 230 VAC
C) 100 VAC
D) 200 VAC
E) 12 VDC
Output 1
1) 4-20 mA
Output 2
N) None
Totalizer
A) Six digit
resettable
Approvals
N) None
Options
N) U.S. Power Cord
E) U.K. Power Cord
G) Euro Power Cord
* High Temp (+400 °F)
Small Pipe (1/4" - 1")
NOTE: The Series D902 is shipped with one set of
standard transducers, acoustic couplant, two mounting
straps, power cord and a 4-20 mA cable.