User manual

Kontrollrelais / Monitoring-relay – in- case – Füllstandsüberwachung / Liquid level monitoring – ICL
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SE blue Potentiometer to adjust the sensor-sensitivity. If the resistance of
a sensor falls below the adjusted resistance value the sensor will
be detected as “covered”.
Note:
The characteristic of the potentiometer is logarithmic. The
switching hysteresis changes linear over the whole range from
+/-20% at 100Ω to +/-5% at 100kΩ.
DIP-switches for basic functions
A/M Automatic Reset (A):
Automatic reset of an
alarm.
Manual reset (M):
An alarm can only be
reset by pressing the
MR-button.
Note:
For volatile / non-
volatile manual reset
see special operating modes!
FI/EM Fill (FI):
The basic function of
the relay is „Fill tank“.
Empty (EM):
The basic function of
the relay is „Empty
tank“.
/AL Minimum alarm ():
On detecting an empty
tank (“dry running”) the
alarm output relay will
be activated.
Maximum alarm (AL):
On detecting a full tank
(“overrun”) the alarm
output relay will be
activated.
n/vR1 R1 normal (n):
The output relay 1
„Fill/Empty“ works
corresponding to the
normal function.
R1 inverted (vR1):
The output relay 1
function “Fill/Empty” is
inverted.
n/vR2 R2 normal (n):
The output relay 2
„Alarm“ works corres-
ponding to the normal
function.
R2 inverted (vR2):
The output relay 2
function „Alarm“ is
inverted.
S1/S12 1 sensor (S1):
„Fill/Empy“ with 1
sensor.
2 sensors (S12):
„Fill/Empty“ with 2
sensors (hysteresis).
Note: These functions can be used in any combination.
Examples:
Fill with 1 sensor and maximum alarm
FILL: If the liquid level falls below sensor 1 (S1), the on-delay time (te) starts. After
expiration of the on-delay time (te) the output relay “Fill/Empty” (R1) pulls in. If the
liquid level exceeds the level of sensor 1 (S1), the off-delay time (tr) starts. After
expiration of the off-delay time (tr) the output relay “Fill/Empty” (R1) drops out.
ALARM: If the liquid level exceeds the level of sensor 3 (S3), the delay time (tr+te
AL) starts. After expiration of the delay time the output relay “Alarm” (R3) pulls in. If
the liquid level falls below the level of sensor 3 (S3), the delay time (tr+te AL) starts
again. After expiration of the delay time the output relay “Alarm” (R3) drops out.
Fill with 2 sensors and maximum alarm
FILL: If the liquid level falls below sensor 1 (S1) AND sensor 2 (S2), the on-delay
time (te) starts. After expiration of the on-delay time (te) the output relay
“Fill/Empty” (R1) pulls in. If the liquid level exceeds the level of sensor 1 (S1) AND
sensor 2 (S2), the off-delay time (tr) starts. After expiration of the off-delay time (tr)
the output relay “Fill/Empty” (R1) drops out.
ALARM: If the liquid level exceeds the level of sensor 3 (S3), the delay time (tr+te
AL) starts. After expiration of the delay time the output relay “Alarm” (R3) pulls in.
If the liquid level falls below the level of sensor 3 (S3), the delay time (tr+te AL)
starts again. After expiration of the delay time the output relay “Alarm” (R3) drops
out.
Empty with 1 sensor and minimum alarm
EMPTY: If the liquid level exceeds sensor 1 (S1), the on-delay time (te) starts.
After expiration of the on-delay time (te) the output relay “Fill/Empty” (R1) pulls in. If
the liquid level falls below the level of sensor 1 (S1), the off-delay time (tr) starts.
After expiration of the off-delay time (tr) the output relay “Fill/Empty” (R1) drops out.
ALARM: If the liquid level falls below the level of sensor 3 (S3), the delay time
(tr+te AL) starts. After expiration of the delay time the output relay “Alarm” (R3)
pulls in. If the liquid level exceeds the level of sensor 3 (S3), the delay time (tr+te
AL) starts again. After expiration of the delay time the output relay “Alarm” (R3)
drops out.
Empty with 2 sensors and minimum alarm
EMPTY: If the liquid level exceeds sensor 1 (S1) AND sensor 2 (S2), the on-delay
time (te) starts. After expiration of the on-delay time (te) the output relay
“Fill/Empty” (R1) pulls in. If the liquid level falls below the level of sensor 1 (S1)
AND sensor 2 (S2), the off-delay time (tr) starts. After expiration of the off-delay
time (tr) the output relay “Fill/Empty” (R1) drops out.
ALARM: If the liquid level falls below the level of sensor 3 (S3), the delay time
(tr+te AL) starts. After expiration of the delay time the output relay “Alarm” (R3)
pulls in. If the liquid level exceeds the level of sensor 3 (S3), the delay time (tr+te
AL) starts again. After expiration of the delay time the output relay “Alarm” (R3)
drops out.