PD6720 Field-Mount Loop-Powered Rate/Totalizer
Instruction Manual
6
Rate/Totalizer
Rate Display
0 to 99,999 leading zero blanking
Total Display
0 to 9,999,999 leading zero blanking
Total Decimal
Point
Up to six decimal places or none:
d.dddddd, d.ddddd, d.dddd, d.ddd,
d.dd, d.d, or ddddddd
Lower Display
Configuration
Can be programmed to display total,
tag name/engineering units, or to
alternate between them.
Totalizer
Calculates total based on rate, time
base of second, minute, hour, or day,
and field programmable multiplier;
stored in non-volatile memory upon
power loss.
Totalizer Reset
Via front panel SafeTouch button,
time delay, external contact closure,
or protected
Total Conversion
Factor
0.000001 to 9,999,999
Totalizer Rollover
Display rolls over when display
exceeds 9,999,999. Relay status
reflects the displayed value.
Total Reset Delay
Programmable from 0 to 99,999
seconds
Open Collector Output
Rating
Isolated open collector, sinking NPN
30 VDC @ 150 mA max.
Alarm Output
Assign to rate for high or low alarm trip
point.
Assign to total for total alarm trip point.
Deadband
0-100% FS, user selectable
Acknowledge
Front panel ACK button resets output
and screen indication.
Pulse Output
Scaler (Count)
The pulse output scaler (count) is
programmable from 0.0001 to 99999.
One pulse is generated for every total
increment selected (e.g. A pulse scaler
value of 100 will generate one pulse
every time the total is incremented by
100 units).
If the pulse output exceeds the
programmed output frequency, pulses
are accumulated as pending and are
not lost. Pulses will continue to output
until the buffer is emptied or the total is
reset from the front panel.
Pulse Output
Frequency
Programmable frequency:
2, 4, 8, 16, 32, 64, 128 Hz.
Minimum pulse width: 3.9 ms @ 128 Hz
Maximum pulse width: 250 ms @ 2 Hz
Factory default pulse width:
31 ms @ 16 Hz
EFT
±2 kV DC mains, ±1 kV other
Telco Surge
±1 kV
CRFI
3 V, 0.15-80 MHz, 1 kHz 80% AM
