PD8-6262 Explosion-Proof Dual Analog Input Flow Rate/Totalizer
Instruction Manual
44
Time Delay Operation
The following graphs show the operation of the time
delay function.
When the signal crosses the set point, the
On
time
delay timer starts and the relay trips when the time
delay has elapsed. If the signal drops below the set
point (high alarm) before the time delay has elapsed,
the
On
time delay timer resets and the relay does not
change state. The same principle applies to the
Off
time delay.
Note:
If “Automatic or Manual (
A-nmAn
)” reset mode is
selected, the LED follows the reset point and not the relay
state when the relay is acknowledged.
Total Relay Sampling Operation
When the total reaches the preset, the relay trips and
the sample time starts. After the sample time has
elapsed, the relay resets. The cycle repeats every
time the preset value is added to the total.
Preset = 100
100
Relay
LED
Total
200
300
Sample
Time
Sample
Time
Sample
Time
