User manual - DATA RECORDER SRD-99 and cooperating software
6.3.
PRINCIPLE OF OUTPUTS OPERATION
Device is equipped in electronic relay outputs that can be used to control external
devices. Each output has own icon (in left upper corner
) that shows the status of the
output.
Relays are controlled by alarms defined in ”
Inputs settings
” menu and additional
parameters in ”
” menu.
Fig. 6.25. Screen with relay 1 open and relay 2 closed.
6.3.1.
Alarms
Each channel can generate two independent alarms. Particular alarm is present when
entered condition is met. Those conditions can be set in ”
Inputs settings
”.
Fig. 6.26. ”
Over threshold
” mode diagram. 0 means alarm not present, 1 alarm present
Fig. 6.27. ”
Under threshold
” mode diagram. 0 means alarm not present, 1 alarm present
33
Under
threshold
Over
threshold
1
0
Alarm state
”Threshold” parameter
”Hysteresis” parameter
Reading
Under
threshold
Over
threshold
1
0
Alarm state
”Threshold” parameter
”Hysteresis” parameter
Reading