TESTO 6681 Instruction Manual page 26

testo 6681 Ethernet
26
1.3.3.1 Overview of terminals
1 Lower part of housing
2 Relay board (option)
3 Relay terminals
4 Insulating trough for relay
board
5 Terminal strip for voltage
supply and analog outputs*
6 Terminal board
7 Earthing terminal (internal)
- 1.3 Commissioning
Warning!
Electrical voltage.
Danger of short-circuit!
De-energize the mains connection before connecting the
transmitter!
Only have the transmitter wired and connected by authorized
personnel with the voltage disconnected.
8 M 16 x 1.5 screw connection**
9 Earthing terminal (external)
10 M 20 x 1.5 screw connection*
11 Eyelet for measuring point
panel
** Alternatively, NPT cable coupling
or M plug-in connection.