4
2 For your safety
Electronics module • OPTISWITCH 5300 C
53828-EN-210701
2 For your safety
2.1 Authorised personnel
All operations described in this documentation must be carried out
only by trained, qualified personnel authorised by the plant operator.
During work on and with the device, the required personal protective
equipment must always be worn.
2.2 Appropriate use
The electronics module is a replacement insert for OPTISWITCH
5300 C vibrating level switches.
2.3 Safety instructions for Ex areas
For applications in explosion-proof areas (Ex), only devices with cor-
responding Ex approval may be used. Observe the Ex-specific safety
instructions. These are an integral part of the operating instructions
and are enclosed with every device with Ex approval.
