Replacing Electrolyte - Hach EC1000 Instruction Manual

8.1.4 Replacing Electrolyte

4. Screw the new sensor assembly into the electrode body using the sensor wrench. Two
o-rings are required for proper seating. Make sure the loading nut is flush with the end
of the electrode body (see Figure 24).
One 500-mL bottle of electrolyte lasts over one month. The reservoir volume is 700 mL.
When replenishing electrolyte for an existing electrode, clean and calibrate the electrode.
If you are replenishing electrolyte in the reservoir that has not emptied completely,
the system does not require purging. If the reservoir electrolyte dropped to a level that
introduced air into the electrolyte tubing, the system requires purging (see Section 8.1.6
Purging the System).
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