ABB ScreenMaster RVG200 Manual

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A B B M E A S U R E M E N T & A N A LY T I C S | S E R V I C E I N S T R U C T I O N
ScreenMaster RVG200
Paperless recorder
– 1
ScreenMaster RVG200
terminal block
There have been instances reported where some or
all inputs on an RVG200 analog input card have
shown as failed immediately after installation, with
no apparent cause for the failure. In rare cases, this
can be attributed to a faulty analog input card but
the most common cause has been identified as a
problem affecting the connection strips within the
terminal block assembly.
The reason for potential failure is that during
installation, unscrewing the terminal connection,
inserting the wire and tightening the screw can
cause the spring assembly inside the terminal block
to move, breaking its contact with the PCB.
2
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Introduction
Action
Action when fault reported
Information only
Terminal block failures
3
• Medium, flat-bladed screwdriver
• Anti-static strap or anti-static workbench
4 Identifying failures
Action at next service
Recall instruments
Tools/Equipment required
WARNING
Bodily injury
Isolate all power supplies to the recorder before
removing the terminal cover.
NOTICE
Damage to equipment
The recorder is vulnerable to electrostatic
damage. Wear an anti-static strap or dismantle
the unit on an anti-static workbench.