KERN & SOHN IEX 100K-1MEU Safety - Manual (Page 11)

IEX-BA-e-1410 11
8 Technical surveys

Technical inspection of a scale operating in explosive area has to be
carried out by a trained personnel at least once every three months.
Each technical inspection should cover:

Grounding quality: the quality of fastening to the housing and the resistance of
connection - max. 100Ω,

Quality of the connection between the platform and the indicator (pliant steel pipe
connecting the two subassemblies).

The damage and loosing one of connection is inadmissible.

Electrical connection between the housing and the platform - max. resistance
between the weight pan (put on) and the housing should be lower than 100Ω.

Stability and levelling of the scale.