SET-2000 (110 VAC)
D15349AE-1
Installation and Operating Instructions
Copyright © 2019 Labkotec Oy
7/15
We reserve the right for changes without notice
3
OPERATION AND SETTINGS
The SET-2000 control unit is initialized at the factory as follows. See a
more detailed description in chapter
3.1 Operation.
Channel 1
Alarm takes place when the level hits the sensor (high level alarm)
Channel 2
Alarm takes place when the level leaves the sensor (low level alarm)
Relays 1 ja 2
Relays de-
energize in respective channels’ alarm and fault situations (so-
called fail-safe operation).
Operational delay is set to 5 seconds. The trigger level is normally at
the middle of the sensor
’s sensing element.
3.1
Operation
The operation of a factory-initialized SET-2000 is described in this
chapter.
If the operation is not as described here, check the settings and
operation (chapter 3.2) or contact a representative of the
manufacturer.
Normal mode
– no alarms
The level in the tank is between the two sensors.
Mains LED indicator is on.
Other LED indicators are off.
Relays 1 and 2 are energized.
High level alarm
The level has hit the high level sensor (sensor in the medium).
Mains LED indicator is on.
Sensor 1 Alarm LED indicator is on.
Buzzer on after 5 sec delay.
Relay 1 de-energizes after 5 sec delay.
Relay 2 remains energized.
Low level alarm
The level is below low level sensor (sensor in the air).
Mains LED indicator is on.
Sensor 2 Alarm LED indicator is on.
Buzzer on after 5 sec delay.
Relay 1 remains energized.
Relay 2 de-energizes after 5 sec delay.
After removal of an alarm, the respective alarm LED indicators and
buzzer will be off and respective relay will be energized after 5 sec delay.
Fault alarm
A broken sensor, sensor cable break or short circuit, i.e. too low or too
high sensor signal current.
Mains LED indicator is on.
Sensor cable Fault LED indicator is on after 5 sec delay.
The relay of respective channel de-energizes after 5 sec delay.
Buzzer is on after 5 sec delay.
Reset of an alarm
When pressing the Reset push button.
Buzzer will go off.
Relays will not change their status before the actual alarm or fault is off.
TEST FUNCTION
Test function provides an artificial alarm, which can be used to test the
function of the SET-2000 level switch and the function of other
equipment, which is connected to SET-2000 via its relays.
