AWH Tanko RT, Operating & Installation Instructions Manual, Page: 77 / 132

ATEX Retractor System TANKO-RT/-RTS
5 Installation Translation - Operating/installation instructions 2020/01 67/121
Figure 5.2-10: Position of Locking Cylinder Limit Switch
A switch amplifier must be used for the limit switches, which is not supplied (see Power Supply
Section 3.3 Technical Data ).
3. Mount the cable of the limit switch of the working and locking cylinder on the switch amplifier.
4.
WARNING Limit switch temperature exceeded
!
Exceeding the temperature may endanger the functional security of limit switch “F”.
In order to maintain the functional safety of limit switch “F” and throttle check valve “E” at operating
temperatures > 70 °C, the following measures must be carried out in order to maintain the ambient
temperature within the container and/or the temperature of the cleaning medium:
Mount the supplied resistance thermometer in the position in the indicated position
(see
Figure
5.2-11
: Resistance thermometer position ).
 Connect the resistance thermometer to the switch amplifier and transmitter after specifying the
manufacturer of the resistance thermometer. See the manufacturer documentation (
WIKA Alexander
Wiegand SE & Co. KG. ).

Evaluation of the signal 66°C by higher-level controller (see 3.2 General Function Description )
On delivery, the resistance thermometer is not installed on the device and is supplied with the
device. Follow the manufacturer documentation (WIKA Alexander Wiegand SE & Co. KG.).
The resistance thermometer must be used to monitor the temperature on the limit switch “F”. If
additional temperature monitoring is necessary, this must be procured and connected by the owner.