KAL-A(K)
KAL-A(K) K05/1116
Page 7
Bi-coloured LED (KAL-AK)
The bi-coloured LED serves to additionally display a switching point (KAL-AK).
RED = ALARM (flow below the set point)
GREEN = (flow above the set point)
If bi-coloured LED is flashing green: Instrument is in calibration mode.
If bi coloured LED is flashing red: Instrument signal an error (check the
temperature of the liquid ).
Terminal strip
The terminal strip serves the electrical connection.
The device only operated with 24 VDC (DC ± 20%)
Terminal 1: Output NPN/PNP (only KAL-AK)
Terminal
2:
GND
Terminal 3: + 24 VDC
Terminal 4: Analogue output
Plug connector M12
24 V
DC
2
1
4
3
Output NPN/PNP
(only for KAL-AK)
4-20 mA
GND
SET pushbutton
The calibration switch is used to start the flow calibration procedure
Potentiometer
a.) Calibration:
left-hand stop = zero flow calibration
right-hand stop = maximum flow calibration
b.) Switching point adjustment (KAL-AK)
The set point potentiometer is used to adjust the flow set point. You will
notice that the flashing LED moves along the trend indicator scale as the set
point potentiometer is adjusted.
Output Selector Switch
The output selector switch is used to select between the output logic NPN and
PNP. This adjustment is factory-made and needs not to be changed anymore
under normal conditions.
Output selector switch right:
NPN-output
Output selector switch left:
PNP-output