KERN & SOHN OEX - Manual (Page 15)

9 Technical examination
• Technical examination by expert staff is required every three
months.
The examination should include the following:
• Condition of connection to earth for balance display unit, including:
o Fastening of display housing and electrical resistance -
max. 100Ω,
o Fit a flexible steel tube for the protection of the conductor leading to the
platform balance and the display unit (regular balances with “cabled”
display).
• The quality of the connection between the platform and the display unit (flexible
steel tube connecting both subassemblies).
• Damage and loss of a connection is inacceptable.
• The electrical connection between the housing and the platform – the maximum
resistance between the weighing pan
(put on) should be less than100Ω.
• Stability and levelling of the balance.
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