25
Below Setpoint Control Operation
Short the "SET SELECT" connectors “HI” and
“LO” with a jumper wire. The set contact re-
lay will close if the measured value is lower
than the setpoint value, and the "SET ON"
LED will light up.
ALARM
Press the "
Δ
ALARM" key and the display will show the set tolerance
for the alarm.
Use a small screwdriver to adjust the "
Δ
ALARM"
trimmer until the desired tolerance is displayed.
For example, if the set value is 200 µS/cm and
a
Δ
Alarm of 50µS/cm is set, an alarm will be
activated every time the measured value is higher
than 250µS/cm or lower than 150 µS/cm.
When an alarm occurs, the "ALARM" LED
lights up.
