Precautionary Labels; Product Hazards; Section 4 Preparation For Use; Section 5 Calibration - Hach PHC201 User Manual

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3.3 Precautionary labels

Read all labels and tags attached to the instrument. Personal injury or damage to the instrument

could occur if not observed. A symbol on the instrument is referenced in the manual with a

precautionary statement.

Electrical equipment marked with this symbol may not be disposed of in European

domestic or public disposal systems. Return old or end-of-life equipment to the

manufacturer for disposal at no charge to the user.

Chemical exposure hazard. Obey laboratory safety procedures and wear all of the

personal protective equipment appropriate to the chemicals that are handled. Refer to

the current safety data sheets (MSDS/SDS) for safety protocols.

Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local,

regional and national regulations.

Personal injury hazard. Glass components can break. Handle with care to prevent cuts.

New probes come with a soaker bottle that contains storage solution to keep the glass bulb and

reference junction hydrated. Prepare the probe as follows.

1. Loosen the cap on the soaker bottle. Remove the soaker bottle from the probe.

2. Rinse the reference junction and glass bulb with deionized water. Blot dry with a lint-free cloth.

3. For faster stabilization, soak the probe for 3 or more minutes in the sample before use.

4. Make sure that the meter has the correct date and time settings. The service-life time stamp in

the probe comes from the date and time settings in the meter.

Note: Some meters automatically open the date and time settings when the meter starts for the first time, or

after battery replacement.

5. Connect the probe to the meter.

The procedure that follows is applicable to meters that can connect to Intellical pH probes. Refer to

the applicable meter documentation for meter operation and probe-specific settings.

Read the notes that follow before calibration:

• Use prepared pH buffer solutions or mix pH buffer powder pillows with deionized water for

calibration. Discard the prepared buffer solutions after each calibration.

C A U T I O N

English 5

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