KTR Kupplungstechnik
GmbH
D-48407 Rheine
NVT-E
Operating-/Assembly Instructions
KTR-N
Sheet:
Edition:
42611 EN
6 of 27
1
Please note protection
mark ISO 16016.
Drawn:
11.10.12 Pz/Wy
Replaced for:
---
Verified:
19.11.12 Pz
Replaced by:
3 Assembly
The level switches are supplied fully assembled and can be fixed to the tank by means of the thread. In this
context please make sure that the float can move freely and sufficient distance to the tank walls and to other
equipment is kept. If the float has potentially been disassembled it has to be made sure that the magnet inside the
float is situated above the fluid level. This can easily be inspected by means of a piece of iron which allows to find
out the position of the magnet in the float.
3.1 Starting (General)
!
C A U T I O N !
The electric connection may be performed by trained technical staff only.
Connection
The mains voltage is connected to connector S6 or M12, respectively. Nominal voltage of devices is 24 V DC.
Please refer to the mounting dimensions and pin assignment in the chapter 1
Technical Data
.
The switching outputs are designed as PNP transistor outputs
(see illustration 2).
Illustration 2
A T T E N T I O N !
If the switching output is measured with high-impedance
measuring equipment or if the frequency output is used,
connect a 10 k
resistor between output and ground to
avoid faulty measurements.
4 Operation
4.1 Switching On
If an error message occurs during normal operation, please refer to chapter
7.1
Breakdowns, Causes and Elimination
.
After connecting the device to the mains, the software version is displayed for
a short time. Afterwards, the measured values are displayed.
The functions of the display- and control unit are explained in the following
chapters.
Illustration 3
