ESD-A5-EL-05
0536
0536
ESD-A5-RL-05
0536
0536
Unit
Manual
3.2
EXTERNAL SENSORS
External sensors can be used to monitor temperature critical points in an installation. External sensors
should only be used for technical alarms.
The temperature sensor is fitted in a stainless steel casing. Rectangular sensor casings can be screwed
onto an object, while sensors in cylindrical casings can be used as “feelers”. The sensor and cable are
sealed into the casing with a special glue of low thermal resistance.
Rectangular sensor
ESD-A5-EL...
Type label
Sensor imprint
Sensor imprint
ESD-A5-RL
Rounded sensor
External sensors are connected to the d-LIST-bus using UCM-ESD connection modules
Definition: “Total cable length”
specifies the total length of all cables connected
to one sensor cable port.
Total cable length =
SEC 15 Sensor cable
+
CC 15 connection cable
+
length of each external sensor's connection lead
The combination of external sensors with a sensor cable reduces the total cable length to 200 m. In this
case 99 sensors may be connected to one sensor cable port, with max. 4 external sensors connected to
either end of the sensor cable.
The following limitations to CC 15 connection cable lengths apply for installations operated exclusively
with external sensors:
Number of sensors
Total cable length
Up to 50 sensors
100 m
51 to 99 sensors
50 m
Note
: Adaptor elements should be activate for each external sensor
60T023-04 / 30.04.2014
LISTEC GmbH
Page 13/44
Lin ea re Se nso r T e ch n ik
G
m
bH
L in ea re Se n sor Te c hn ik
G
m
bH
Max. 200 m total cable length / sensor cable port
ca. 5 cm
ca. 5 cm
ca. 25 cm