Hach-Lange PHOSPHAX indoor sc - Manual (Page 41)

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Section 6 Maintenance
DANGER
Only qualified personnel should conduct the tasks described
in this section of the manual.
CAUTION
Good safety habits and technique should be observed at all
times. Review all SDS/MSDS information and use
recommended safety measures to prevent exposure to
potential chemical hazards.
6.1 General maintenance
• Regularly check the entire system for mechanical damage.
• Regularly check all connections for leaks and corrosion.
• Regularly check all cables for mechanical damage.
6.1.1 Clean the analyzer
Clean the system with a soft, damp cloth. Commercially available
solvents can be used for stubborn soiling.
6.1.2 Reagent replacement
The chemicals must be changed or renewed at regular intervals.
Refer to
Table 3 for information on the life of the chemicals.
6.1.3 Replace the fan filter
The filter air pads must be cleaned or replaced regularly. Refer to
section 6.2 on page 43 for more information.
The cooling fan must be stopped before completing any filter
maintenance.
To stop the cooling fan:
1. From the MENU select SENSOR SETUP>PHOSPHAX SC and
press ENTER.
2. Select MAINTENANCE>TEST/MAINT>AIR FILTER PADS and
press ENTER.
3. Select START and press ENTER.
The process is started and the cooling fan stops.
Important Note: Open the instrument door to prevent overheating.
CAUTION
Avoid injury. Keep hands clear. Although the fan is stopped,
work carefully to avoid injury in case of failure.
Table 3 Chemicals for the PHOSPHAX sc
Chemicals ( 8.1 on page 51 )
Low measuring range (LR)
(0.05–15 mg/L)
(Measuring interval 5 minutes) High measuring range (HR)
(1–50 mg/L)
(Measuring interval 5 minutes)
Reagent 2000 mL for 4 months 2000 mL for 2 months
Cleaning solution 1000 mL for 1 year on daily cleaning 1000 mL for 1 year on daily cleaning