8. TROUBLESHOOTING
While your Metalyser
®
is designed to be very reliable, problems may occur
throughout its working life. The following tables are intended to help you
diagnose and resolve these problems simply and quickly. Should you not be
able to resolve the problem, please contact your supplier and they will be able to
assist you.
When troubleshooting the instrument, the following steps should be undertaken
in this order:
1. Reference Electrode – does the Reference Electrode contain the right level
of electrode fill solution? Is it damaged at all? Are there air bubbles in the
inner tube?
2. Stirrer – does the stirrer rotate? Does it mix the powder reagents when
operating? To check this, run the stirrer according to the instructions on
page 15.
3. Working Electrode – is the Working Electrode plated correctly? Is WE1
grey in colour or is WE2 yellow in colour? Has the grey WE1 Hg plate been
wiped off before the WE2 plating?
4. Solutions – have the solutions been contaminated? Have the correct
buffers been added in the correct order? Has the right amount of standard
been added?
The Metalyser
®
will try and help you with determining the problems. See below:
The metal concentration is above the
maximum limit of 500 ppb
The metal concentration is below the minimum
limit of detection for the method being used
The increase in metal response was not
sufficient enough to determine the addition
The addition was not added or the metals have
not been detected
Metalyser® Field Pro HM3000 Instruction Manual v 5.0
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