Hach-Lange PHC10115 User Manual

DOC022.52

User Manual

Gel-filled pH Probe: Model PHC10101, PHC10103, PHC10105,
PHC10110, PHC10115 or PHC10130

Safety information

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 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.

Specifications

Note: Specifications are subject to change without notice.

.80023

Specifications Details

Probe type Digital combination non-refillable, gel-filled probe with double junction

reference and built-in temperature sensor

pH range pH 2 to 14

pH resolution User-selectable stabilization time and resolution—Fast: 0.1, Fast: 0.01,

Medium: 0.01, Slow: 0.01 or Slow: 0.001

Slope -59 mV/pH (90 to 110% at 25 °C (77 °F) per Nernstian theoretical value)

Operating temperature range 0 to 50 °C (32 to 122 °F)

Storage temperature range 5 to 40 °C (41 to 104 °F)

Junction Open

Reference type Ag/AgCl

Sodium (alkalinity) error -0.6 pH at pH 12.6 in 1 M NaOH

Temperature accuracy ±0.3 °C (±0.54 °F)

Minimum sample depth 20 mm (0.79 in.)

Dimensions (standard) Diameter: 12 mm (0.47 in.)

Length: 175 mm (6.89 in.)

Cable length: 1 or 3 m (3.28 or 9.84 ft)

Dimensions (rugged) Diameter: 46 mm (1.81 in.)

Length: 223 mm (8.73 in.)

Cable length: 5, 10, 15 or 30 m (16.40, 32.81, 49.21 or 98.42 ft)

Cable connection M12 digital output and connector compatible with HQd meters

Product overview

The PHC101 series probe is a non-refillable, gel-filled combination pH probe with a built­in temperature sensor (Figure 1). The standard PHC10101 or PHC10103 probe comes
with a 1 or 3 m (3.28 or 9.84 ft) cable and is intended for laboratory use. The rugged
PHC10105, PHC10110, PHC10115 or PHC10130 comes with a 5, 10, 15 or 30 m (16.40,

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32.81, 49.21 or 98.42 ft) cable and is intended for field use. The probe provides pH
measurement in wastewater, drinking water and general aqueous applications. The probe
is not suitable for use with organic solvents or samples with pH less than 2.

Figure 1 Probe overview

1 Shroud (rugged model) 6 Locking ring (rugged model)

2 Probe storage cap 7 Rugged probe (5, 10, 15 or 30 meter cable)

3 Probe soaker bottle 8 Standard probe (1 or 3 meter cable)

4 Glass bulb and temperature sensor 9 Probe storage cap or soaker bottle holder

5 Reference junctions and protective tape

Preparation for use

To prepare the probe for initial use:

1. If a rugged probe, remove the shroud and probe storage cap (refer to Remove the

shroud on page 10

2. If a standard probe, turn the probe soaker bottle cap counter-clockwise to loosen the
cap. Remove the soaker bottle from the probe.

3. Remove the protective tape from the reference junctions (refer to Figure 1
on page 2). Dispose of the protective tape.

4. If the probe will be used immediately, prepare the probe for calibration or sample
measurement.

5. If the probe will not be used immediately, store the probe (refer to Storage
on page 10).

To prepare the probe for calibration or sample measurement:

1. If a rugged probe, remove the probe storage cap.

2. If a standard probe, turn the probe soaker bottle cap counter-clockwise to loosen the

cap. Remove the soaker bottle from the probe.

3. Rinse the reference junctions and glass bulb thoroughly with deionized water to
remove the 3 M KCl solution completely. Blot dry with a lint-free cloth.

4. For the best stabilization time, condition the probe for several minutes in the sample
before use.

5. If a rugged probe, make sure that the shroud is installed before field use (refer to

Install the shroud on page 10).

).

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Note: Damage to the sensing elements can occur if the shroud is not installed during field use.
Damage under these conditions is not covered by the product warranty.

Calibration

Before calibration:

The probe must have the correct service-life time stamp. Set the date and time in the meter before the probe is attached.

It is not necessary to recalibrate when moving a calibrated probe from one HQd meter to another if the additional meter is
configured to use the same calibration options.

To view the current calibration, push , select View Probe Data, then select View Current Calibration.

If any two probes are connected, push the UP or DOWN arrow to change to the single display mode in order to show the
Calibrate option.

Prepare the probe for use (refer to Preparation for use on page 2).

If a rugged probe, remove the shroud from the probe (refer to Remove the shroud on page 10).

Calibration notes:

•

pH buffers can be used in any order. Use buffers that are two pH units apart.

• Additional standard sets along with the minimum number of calibration points can be
selected in the Calibration Options. For a two point calibration, it is recommended that
two buffers be selected: one with a pH above and one with a pH below the expected
sample pH. For a one point calibration, select the buffer nearest to the expected
sample pH.

• The calibration is recorded in the probe and the data log. The calibration is also sent
to a PC, printer or flash memory stick if connected.

• Air bubbles under the sensor tip when submerged can cause slow response or error
in measurement. If bubbles are present, gently shake the probe until bubbles are
removed.

• If a calibration error occurs, refer to Troubleshooting on page 10.

1. Connect the
probe to the
meter. Make sure
that the cable
locking nut is
securely
connected to the
meter. Turn on the
meter.

Calibration procedure:

2. Push
Calibrate. The

display shows the
buffers that are
necessary for
calibration.

3. Prepare the
fresh buffers in
separate beakers
or appropriate
containers.

4. Rinse the
probe with
deionized water.
Blot dry with a lint­free cloth.

5. Put the probe
in the pH buffer
solution and stir
gently. Make sure
that the reference
junctions are
completely
submerged.
Shake the probe
from side to side
in the standard
solution to refresh
the reference
junction.

3

6. Push Read.

Stir gently. The
display will show
"Stabilizing" and a
progress bar as
the probe
stabilizes in the
standard. The
display shows the
buffer that has just
been read and
shows the
temperature
corrected pH
value when the
reading is stable.

7. Repeat steps
4 - 6 until the
minimum number
of calibration
points specified in
the current
method have been
collected.

8. Push Done to
view the
calibration
summary. The
display will not
show Done until
the minimum
number of
calibration points
have been
collected.

9. Push Store to
accept the
calibration and go
back to
measurement
mode. If a rugged
probe, install the
shroud on the
probe (refer to

Install the shroud

on page 10).

Sample measurement

Before measurement:

The probe must have the correct service-life time stamp. Set the date and time in the meter before the probe is attached.

If complete traceability is necessary, enter a sample ID and operator ID before measurement. Refer to the HQd meter
manual for more information.

Regular calibration is required for the best measurement accuracy (refer to Calibration on page 3).

Prepare the probe for use (refer to Preparation for use on page 2).

To deploy a rugged probe at a distance, toss the probe body with a gentle underhand throw. Do not swing the probe by the
cable as this may cause injury to the user, will cause severe strain on the cable and will shorten the service life of the probe.

Measurement notes:

•

Data is automatically stored in the data log when Press to Read or Interval is
selected in the Measurement Mode. When Continuous is selected, data will only be
stored when Store is selected.

• Air bubbles under the sensor tip when submerged can cause slow response or error
in measurement. If bubbles are present, gently shake the probe until bubbles are
removed.

• If a measurement error occurs, refer to Troubleshooting on page 10.

Measurement procedure:

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