Dynasonics 701_771C Series Insertion Ultrasonic Flow Meter - Manual (Page 31)

Rev. 12/97 -30- D77X
useful for accommodating a very large accumulated flow.
The exponent is a “ X 10
n ” multiplier, were “n” can be from
0 (10 0 , X 1 multiplier) to 4 (10 4 , X 10,000 multiplier).
The External Counter output, available at the two
terminals labeled CTR on the Main PCB, is influenced by
the TOTAL MULT value. Since the output is designed to
operate electromechanical accumulators, large flow rates
will require that the TOTAL MULT be set to a value usable
by these types of counters (typically speeds no faster than
3 cps). The following chart tabulates suggested settings
vs. flow ranges:
TOTAL ON/OFF
Exponent Multiplier Useable CTR
Range:
GPM or LPM
0 X1 30-600
1 X10 300-6,000
2 X100 3,000-60,000
3 X1,000 30,000-600,000
4 X10,000 300,000-6,000,000
Key press number Operation
First press Stops the internal totalizer/
external CTR and displays
the last value
Second press Resets the internal totalizer
to zero
(continued)
PART 3 - KEYPAD CONFIGURATION