General Maintenance - Hach PHOSPHAX SC Benutzerhandbuch

Section 6

6.1 General maintenance

6.1.1 Clean the analyzer
6.1.2 Reagent replacement
Chemicals
Reagent
Cleaning solution
6.1.3 Replace the fan filter
10
Maintenance
DANGER
Only qualified personnel should conduct the tasks described in this section of the
manual.
DANGER
Potential danger in the event of contact with chemical/biological materials.
Handling chemical samples, standards and reagents can be dangerous. Familiarize
yourself with the necessary safety procedures and the correct handling of the
chemicals before the work and read and follow all relevant safety data sheets.
Normal operation of this instrument may involve the use of hazardous chemicals or
biologically harmful samples.
• Observe all cautionary information printed on the original solution containers
and safety data sheet prior to their use.
• Dispose of all consumed solutions in accordance with national regulations and
laws.
• Select the type of protective equipment suitable to the concentration and
quantity of the dangerous material at the respective work place.
• Regularly check the entire system for mechanical damage.
• Regularly check all connections for leaks and corrosion.
• Regularly check all cables for mechanical damage.
Clean the system with a soft, damp cloth. Commercially available solvents can be used for
stubborn soiling.
The chemicals must be changed or renewed at regular intervals. Refer to
information on the life of the chemicals.
Table 1 Chemicals for the PHOSPHAX sc
Low measuring range (LR)
(0.05–15 mg/L)
(Measuring interval 5 minutes)
2000 mL for 4 months
1000 mL for 1 year on daily cleaning
The filter air pads must be cleaned or replaced regularly. Refer to
for more information.
The cooling fan must be stopped before completing any filter maintenance.
To stop the cooling fan:
1. From the Main Menu select Sensor setup>PHOSPHAX SC and press Enter.
2. Select Maintenance>Test/Maintenance>Air filter pads and press Enter.
3. Select Start and press Enter.
The process is started and the cooling fan stops.
Table 1
High measuring range (HR)
(1–50 mg/L)
(Measuring interval 5 minutes)
2000 mL for 2 months
1000 mL for 1 year on daily cleaning
Section 6.2 on page 11
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