Hach-Lange PHC101-03 User Manual

Instruction Sheet

PHC101-01 or PHC101-03 Probe

Safety

To ensure that the protection provided by this equipment is not impaired, do not use or install
this equipment in any manner other than that specified in this document.

This symbol, if noted on the instrument, references the instruction manual for operation and/or safety information.

Electrical equipment marked with this symbol may not be disposed of in European public disposal systems after 12
August of 2005. In conformity with European local and national regulations (EU Directive 2002/96/EC), European
electrical equipment users must now return old or end-of life equipment to the Producer for disposal at no charge to
the user.

Note: For return for recycling, please contact the equipment producer or supplier for instructions on how to return
end-of-life equipment, producer-supplied electrical accessories, and all auxiliary items for proper disposal.

Overview

Figure 1 shows the PHC101-01 or PHC101-03 Probe, a non-refillable gel-filled combination

pH electrode with a built-in temperature sensor, which is equipped with either a 1- or 3-meter
cable. The probe is designed for fast, accurate pH measurement in wastewater, drinking
water, and general applications.

DOC302.53.00753

Figure1ThePHC101-01orPHC101-03Probe

1 Sensor Array, including pH and Temperature Sensors 4 1- or 3-meter Cable

2 Reference junction (remove protective film before use) 5 Electrode Storage Cap Lid

3 Locations for color code clip installation 6 Electrode Storage Cap

Each electrode is supplied with color-code clips for easy identification. There are two each of
five colors (black, yellow, light green, light blue, and magenta), one for the electrode and one
for the cable connector.

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Assembly

Calibration

Maintenance

1. Remove the electrode from the electrode storage cap (Figure 1, item 6).

2. Remove the film that covers the two reference junctions (Figure 1, item 2).

3. Rinse the electrode with deionized water and blot dry with a paper towel. Do not
scrub the bulb.

4. Attach a pair of color-code clips to the electrode and cable connector

(Figure 1, item 3).

5. When ready to use, attach the electrode storage cap to the electrode storage cap lid
(Figure 1, item 6) to prevent storage solution spillage and/or loss of the cap.

For calibration steps, refer to the HQ Portable Meters User Manual. The IntelliCAL™
probes store the current calibration and calibration history in the probe memory. It is not
necessary to recalibrate when moving a calibrated electrode from one meter to another.

Important Note: Never use this electrode organic solvents; or if the pH to be measured is
lower than 2.

Important Note: Do not scrub the bulb. If the bulb becomes fouled, immerse and agitate
in a warm dilute mild detergent solution for a few minutes, rinse well with deionized water,
and gently blot or air dry prior to reuse.

General Maintenance

• Before measuring a new sample, rinse the electrode with deionized water and blot dry

with a paper towel.

• If calibration errors occur, recalibrate using fresh, high-quality buffers.

• If the pH glass membrane is not properly hydrated, soak the electrode in pH 4 buffer

for up to two-hours.

Storage

• Between uses, in intervals of up to two hours, store the electrode in the sample (if the

sample pH is not extreme), or in a neutral solution such as tap water.
For longer term storage, place the electrode in a 3M potassium chloride (KCl)
solution, either in the provided storage cap, or in a beaker.

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