Hach AS950 Grundlegende Installation Und Wartung Seite 20

Section 6 Startup
6.1 Set the instrument to on
The refrigerator starts after a 5-minute delay when power is supplied to the sampler. The refrigerator
continues to operate when the controller is set to off or the power is removed from the controller.
Push the POWER key on the controller to set the controller to on.
To set the refrigerator to off, push the POWER key on the controller. Then, disconnect the power
cord on the AWRS or the two power cords on the refrigerated sampler.
6.2 Preparation for use
Install the analyzer bottles and stir bar. Refer to the operations manual for the startup procedure.
Section 7 Maintenance
Multiple hazards. Only qualified personnel must conduct the tasks described in this
section of the document.
Electrocution hazard. Remove power from the instrument before doing maintenance or
service activities.
Biohazard exposure. Obey safe handling protocols during contact with sample bottles
and sampler components.
Multiple hazards. The technician must make sure that the equipment operates safely and
correctly after maintenance procedures.
Do not disassemble the instrument for maintenance. If the internal components must be cleaned or
repaired, contact the manufacturer.
7.1 Clean the instrument
Fire hazard. Do not use flammable agents to clean the instrument.
Do not clean the controller compartment heater with liquids of any kind.
If water is not sufficient to clean the controller and the pump, disconnect the controller and move the
controller away from the sampler. Allow sufficient time for the controller and pump to dry before the
parts are re-installed and put back into service.
Clean the sampler as follows:
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