User manual for electronic counters SLE-42 and STH-42
4.3.
WIRING AND REAR TERMINALS
Attention
- Installation should be conducted by qualified personnel. During installation all
available safety requirements should be considered. The fitter is responsible for
executing the installation according to this manual, local safety and EMC
regulations.
- The power supply network cable diameter must be selected in such a way that in
the case of a short circuit of the cable from the side of the unit the cable shall be
protected against destruction with an electrical installation fuse.
- Wiring must meet appropriate standards and local regulations and laws.
- In order to secure against accidental short circuit the connection cables must be
terminated with appropriate insulated cable tips.
- Tighten the clamping screws. The recommended tightening torque is 0.5 Nm.
Loose screws can cause fire or defective operation. Over tightening can lead to
damaging the connections inside the units and breaking the thread.
- After the installation is completed do not touch the unit’s connections when it is
switched on, because it carries the risk of electrical shock.
a)
7
RESET
GND
INPUT
GND
GND
2 to 30V
GND
2 to 30V