Arsenometer HMAS100
Instruction Manual v2.0
Reference Electrode
The Reference Electrode cap needs to be removed prior to
analysis and replaced when the electrode is going to be stored. It
is best practice not to let the tip of the Reference Electrode dry
out.
The Reference Electrode must contain Reference Electrode fill
solution to operate. Ensure the Reference Electrode is
held vertically with the connector upwards and determine
that there is enough solution in the Reference Electrode.
Fill
solution
level at
max
Fill
solution
level too
low
1. 2. 3. 4.
The outer tube needs to be at least 1/3rd full. To top up the Reference Electrode fill
solution, slide the band down from the hole and use the pipette to drop enough solution
into the Reference Electrode to fill it up. Once topped up, replace the band to prevent the
electrode fill solution escaping.
Only use the supplied Reference Electrode fill
solution.
Stirrer
The stirrer is used to ensure the sample is uniform and needs to operate
during the analysis. To test for the operation of the stirrer, choose a
Conditioning step that is under an elemental analysis section and run
without the SAB attached. To achieve this from the Main menu, choose:
Test methods => As (for example) => Condition electrode. The stirrer should rotate.
If the stirrer fails to rotate, turn the sonde head upside down, add a few
drops of the
Stirrer Oil (do not use any other oil)
down the stirrer
shaft at the base near the sonde head (near where it enters the sonde)
and rotate gently to ensure the lubricant coats the bottom of the shaft .
