M&C TechGroup LA 1.4 Operator's manual - Manual (Page 15)

15
Gas sampling and conditioning technology 5-5.1.1-ME
N O T E !
If the the old sensor LA 1, LA 25 or LA 1-H is connected the same way as
the new sensor LA 1S, the function of the electronic is inverted: no liquid =
alarm, liquid = o.K.
N O T E !
If a new sensor LA 1S is connected the same way as the old sensor LA 1,
LA 25 or LA 1-H no line break control is existing.

The voltage supply takes place on terminals 1 = L, 2 = N and 3 = PE.

The alarm is to be connected to terminals 11, 21 = centre contact, 12, 22 = alarm and 14, 24 =
o.k..
Figure 5 Electrical connection and dimensions LA-1.1