PR 5220 Instrument Manual Safety Information
Sartorius EN-9
1.4.5 Failure and Excessive Stress
If there is any reason to assume that safe operation of the instrument is no longer ensured, shut it down and
make sure it cannot be used. Safe operation is no longer ensured if any of the following is true:
- The instrument is physically damaged
- The instrument does not function
- The instrument has been subjected to stresses beyond the tolerance limits (e.g., during storage or
transport).
1.4.6 Fuse
This instrument does not have a replaceable fuse. The load cell supply voltage is protected against short circuit.
In case of failure of the load cell supply voltage, disconnect the instrument from the supply voltage, determine
the cause and take remedial measures. Subsequently, the supply voltage can be switched on again.
1.4.7 EMC-Compliant Installation
- Use only screened data cables.
- Connect screens on both ends with ground.
- Keep unscreened cable ends short.
- Connect screen rail to cabinet / housing with
low impedance.
- Use metal or metallized connector housings.
- Establish equipotential bonding between
instruments / system modules (Mandatory for
Ex-applications).
- Use standard reference potential.
- Connect mounting rail to protective earth.
- Install measure and data cables separately from
power cables.
Screen clamp (e.g. Phoenix SK8-D)
Rail connection (e.g. Phoenix AB-SK 65D)
Screen rail (e.g. Phoenix NLS-CU 3/10)
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