Precision Digital PD6820 - Manual (Page 38)

PD6820 Loop-Powered Process Meter Instruction Manual
38
Alarm Output (alrnm)

Rate high alarm trip point:
program set point above reset point.

Rate low alarm trip point:
program set point below reset point.
 Rate alarm deadband is determined by the difference between set and reset
points. Minimum deadband is one display count. If set and reset points are pro-
grammed the same, output will reset one count below set point.

Total alarm trip point:
program total set point. Alarm reset is triggered by total
reset (There is no reset parameter entered for total). If automatic total reset is
enabled, this setting will be the trigger point for the timer. It is not necessary to
have the output wired for automatic reset function to work.
set
RATE
Enter
Set Point
1 6.000
SET
reset
RATE
Enter Reset Point
0 8.000
RESET
rate
ALARM
total
ALARM
set
TOTAL
SET
5 000000
Enter Set Point
ALRNm
OUTPUT
To acknowledge an alarm, press the Enter button once for acknowledge prompt
and a second time to confirm.
Pulse Output K-Factor (Pulse)
The pulse output K-factor corresponds to the total units (e.g. gallons) needed to
generate one pulse. For example, if the K-factor value is set to 10, one pulse is
generated for every 10 counts incremented on the display.
If the pulse output exceeds the programmed output frequency, pulses are
accumulated as pending. Pulses will continue to output until the buffer is emptied or
the total is reset from the front panel.
16
MAX HZ
count
0 00000.1
Pulse
OUTPUT
Select Frequency
1 - 2 - 4 - 8 - 16 - 32 - 64 - 128
Enter K-Factor
to generate one pulse