Lamtec LT 2 Assembly And Commissioning Manual page 56

5 Installation
5.2.3 Electrical connection of the LT 2/KS1-DK lambda transmitter
Mains connection
Fitting cable coupler
Cable cross-sections
DANGER
Before all work on electrical equipment, switch off the power supply voltage to the
equipment and check that it has been isolated. Compliance with the relevant safety
provisions is essential.
1 - L
1
2
2 - N
3 -
4 - PE
4 3
For electrical connection, see section 10.3.
Recommended cable cross-sections between probe connection box
and LT 2/KS1-DK
Probe heater (shielded)
Terminal 35 / 36
2
up to 20m ≥ 1.5 mm
2
up to 50m ≥ 2.5 mm
WARNING
Take care to ensure that cable routing and screening confirms to regulations.
Probe connection:
The signal line of the LT 2/KS1-DK, terminals 12, 33 and 34, must not be routed
together with mains cables, particularly cables of frequency converters for speed
control. Any connection with the power circuit must be avoided.
Lines may be routed together with pressure sensor cables, however.
DANGER
A faulty probe connection may result in the probe being damaged beyond repair.
Before commissioning,
check probe connection terminals 12 to 36
12 (-) Probe signal CO/H
33 (-) Probe signal O
2
34 (+) Probe signal CO/H
35 Probe heater
36 Probe heater
Other connecting cables (shielded)
Probe signals
Pressure sensors
≥ 0.8 mm
Multicable 11 x 0.8 (S-Y(ST)Y..LG)
2
/ O (shared inner electrode)
2 2
54
2