User Manual
User Manual
DOC022.53.80023
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.
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,
1
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).
2
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.
Calibration procedure:
1. Connect the
probe to the
meter. Make sure
that the cable
locking nut is
securely
connected to the
meter. Turn on the
meter.
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:
4
Note: Procedure also applies for rugged model probes.
1. Connect the
probe to the
meter. Make sure
that the cable
locking nut is
securely
connected to the
meter. Turn the
meter on.
2. For the best
stabilization time,
condition the
probe for several
minutes in the
sample or in a
solution
comparable to the
sample in terms of
pH and ionic
strength before
the initial sample
measurement.
6. Repeat steps
3-5 for additional
measurements.
7. When
measurements
are done, store
the probe (refer to
Storage
on page 10).
3. Rinse the
probe with
deionized water,
then with the
sample. Blot dry
with a lint-free
cloth.
4. Put the probe
in the sample and
stir gently. Make
sure that the
reference
junctions are
completely
submerged. Do
not put the probe
on the bottom or
sides of the
container. Shake
the probe from
side to side in the
sample to refresh
the reference
junction.
5. Push Read.
The display will
show "Stabilizing"
and a progress
bar as the probe
stabilizes in the
sample. The
display will show
the lock icon when
the reading
stabilizes.
Run a check standard
The run check standard feature validates instrument performance between sample
measurements. Use the run check standard feature for periodic or user-defined interval
measurements of a traceable standard solution. Set the criteria for check standards from
the PHC101 Settings menu.
Note: Access control must be off or a valid password must be entered before any of the check
standard method options can be changed.
1. Push . The Full Access Options menu is shown.
2. Select Run Check Standard.
Note: Select the correct probe if two probes are connected to the meter.
3. Get the standard solution shown on the display.
4. Rinse the probe with deionized water. Blot dry with a lint-free cloth.
5. Put the probe in the standard solution until the temperature sensor is completely
submerged. Move the probe up or down or gently tap on the beaker to remove air
bubbles from the probe.
6. Push Read. The display will show "Stabilizing" and a progress bar as the reading
stabilizes. The display shows the value of the check standard and either Check
Standard Passed or Check Standard Failed.
5
7. If the display shows Check Standard Passed, the check standard measurement is
within the accepted limits set by the administrative user. Select Done to continue with
the sample measurement.
8. If the display shows Check Standard Failed, the measurement is outside of
accepted limits set by the administrative user and a recalibration is recommended. If
the acceptance criteria is set to Cal Expires on Failure: Yes, the display shows the
calibration icon and a question mark until the probe is recalibrated. To correct the
probe calibration and status indicator, calibrate the probe (refer to Calibration
on page 3).
Advanced operation
Parameter-specific settings can be changed through the Full Access Options menu.
Details about menu navigation, available options and how to change them are given in
the screens, tables and procedures throughout this section.
The settings that can be changed are shown in Table 1.
Table 1 Parameter-specific settings
Setting
Options
Measurement Options
•
•
Resolution
Upper and lower range limits
Calibration Options
•
•
•
•
•
Buffer set
Buffer set values (if Custom Buffer Set selected)
Reminder
Minimum Cal points
Slope limit
Check Standard Options
•
•
•
•
Standard (temperature compensated buffer or custom at 25 °C)
Reminder
Acceptance criteria
Standard value at 25 °C (if custom standard selected)
Units
•
•
pH
mV
Change measurement options
Methods are groups of default or user-defined settings relevant to specific applications. If
the meter is set to the default method and the Modify Current Settings option is chosen, a
prompt for a new name is shown after the changes are entered. The settings are saved
with this name to distinguish them from the default method settings, which cannot be
changed. A saved method can be used instead of multiple adjustments to the individual
settings. Changes made to a user-defined method are automatically saved with the
existing name. Multiple methods can be saved for the same probe on each meter.
1. Make sure a probe is connected to the meter.
2. Push and select PHC101 Settings.
6
3. Select Modify Current Settings.
4. Select Units. Select pH (default) or mV.
Note: The mV option can be used to find the probe offset in a pH 7 buffer or to measure the
slope. Both units are shown when the detail display mode is selected.
5. Select Measurement Options and update the settings:
Option
Description
Resolution
Sets the resolution:
•
•
•
•
•
0.1pH—Fast
0.01pH—Fast (default)
0.01pH—Medium
0.01pH—Slow, or
0.001pH—Slow
The resolution affects the number of decimal places and the stabilization
time. Higher resolution measurements take more time to stabilize. Slower
stabilization times provide higher accuracy measurements.
Measurement
Limits
Set the measurement limits—Lower limit (default: 2.00 pH) or Upper limit
(default: 14.00 pH).
The measurement limits can be set to match the acceptable values for the
sample. When the measurement is above the upper limit setting or below
the lower limit setting, the meter shows an "Out of limits" message. This
message is an alert to a potential problem with the process conditions.
6. If prompted, enter a name for the new method settings. Additional changes made to
the settings of an existing method are automatically saved with the same method
name.
7. Push EXIT until the meter returns to the measurement mode.
Change calibration options
1.
2.
3.
4.
Make sure a probe is connected to the meter.
Push and select PHC101 Settings.
Select Modify Current Settings.
Select Calibration Options and update the settings:
Option
Description
Buffer Set
Sets the temperature compensated buffer set used for calibration—
•
•
•
•
•
•
•
Color Coded—4.01, 7.00, 10.01 (default)
IUPAC—4.01, 7.00, 10.01, 12.45
DIN—4.65, 9.23
IUPAC—4.01, 6.86, 10.01, 12.45
IUPAC—4.01, 6.86, 9.18, 12.45
IUPAC—4.01, 7.00, 9.18, 12.45
Custom Buffer Set (refer to Table 2)
Custom buffer sets are characterized at 25 °C (77 °F).
Buffer set values are shown on the Calibration Options screen.
Note: Only the minimum calibration points must be measured for DONE to
be shown on the calibration screen.
Buffer Set
Values
If the Buffer Set is set to Customer Buffer Set, sets the custom buffer set
(refer to Table 2).
Minimum Cal
Points
Sets the minimum number of calibration points necessary before a
calibration can be completed—1 (default), 2 or 3.
Slope Limit
Sets the slope limit—1% to 10% (acceptable slope criteria, default = 5%).
The slope must fall within set limits for successful calibration.
7
5. Select Calibration Reminder and update the settings:
Option
Description
Reminder
Repeat
Meter will make an audible sound when a calibration is due and repeat the
sound at the selected interval—Off (default), 2 h, 4 h, 8 h, 2 d, 5 d or 7 d.
Expires
Calibration expires after the selected time—Immediately, Reminder +
30 min, Reminder + 1 h, Reminder + 2 h or Continue Reading.
Note: The meter cannot be used to read samples after calibration has
expired unless Continue Reading is selected.
6. If prompted, enter a name for the new method settings. Additional changes made to
the settings of an existing method are automatically saved with the same method
name.
7. Push EXIT until the meter returns to the measurement mode.
Table 2 Custom buffer sets
Buffer set values Option
Description
Std1
4.01pH—25 °C Pre-set temperature compensated buffer values.
Std2
4.65pH—25 °C chosen for the first standard, the second standard must differ by at least 2 pH. Standards that do
6.86pH—25 °C not meet this minimum will appear gray on the screen and will not be selectable.
Std3
Std4
Std5
Note: Selected standards must differ by a minimum of 2 pH units. For example, if 1.09pH is
7.00pH—25 °C
9.18pH—25 °C
9.23pH—25 °C
10.01pH—
25 °C
12.45pH—
25 °C
Custom Buffer
Custom buffer value.
Range = 2.000 pH to 14.000 pH.
Custom buffer values are not temperature compensated. Custom buffers should be
read at 25 °C.
No Buffer
Standard is undefined when this option is selected.
Change check standard options
1. Make sure a probe is connected to the meter.
2. Push and select PHC101 Settings.
3. Select Modify Current Settings.
8
4. Select Check Standards Options and update the settings:
Option
Description
Standard
Sets the temperature compensated buffer value for check standard—
•
•
•
•
•
•
•
•
•
4.01pH—25 °C
4.65pH—25 °C
6.86pH—25 °C
7.00pH—25 °C
9.18pH—25 °C
9.23pH—25 °C
10.01pH—25 °C
12.45pH—25 °C
Custom
The standard value is shown on the Check Standard Options screen.
No temperature compensation for custom buffers.
Standard
Value
When Standard is set to Custom, enter the standard value using the up/down
arrow keys.
5. Select Check Standard Reminder and update the settings:
Option
Description
Reminder Repeat Sets the time interval for the check standard reminder—Off, 30 minutes,
2 h, 4 h, 8 h, 12 h or 24 h.
Allow Defer
Allows the postponement of check standard reminders—Yes or No.
6. Select Acceptance Criteria and update the settings:
Option
Description
Acceptance Limits
Sets the tolerance limits for check standard—0.005pH (default) to
1.000pH.
Cal Expires on Failure Recalibration required if check standard fails—Yes or No.
7. If prompted, enter a name for the new method settings. Additional changes made to
the settings of an existing method are automatically saved with the same method
name.
8. Push EXIT until the meter returns to the measurement mode.
Maintenance
Clean the probe
Clean the probe when:
•
•
•
Drifting/inaccurate readings occur as a result of contamination on the glass sensor or
the probe being left dry for extended periods of time.
Slow stabilization time occurs as a result of contamination on the glass sensor.
A calibration error occurs as a result of contamination on the glass sensor.
Before a rugged probe can be cleaned, the shroud must be removed (refer to Remove
the shroud on page 10). Install the shroud after the probe is clean (refer to Install the
shroud on page 10).
For general contaminants:
1.
2.
3.
4.
5.
Rinse the probe with deionized water and blot dry with a lint-free cloth.
Soak the glass bulb for 12 to 16 hours in Hach Electrode Cleaning Solution.
Rinse or soak the probe for 1 minute in deionized water.
Soak the probe in pH 4 buffer for up to 20 minutes, then rinse with deionized water.
Blot dry with a lint-free cloth.
9
For fats, grease and oils:
1.
2.
3.
4.
Soak the glass bulb in a warm detergent solution for up to 2 hours.
Rinse or soak the probe for 1 minute in deionized water.
Soak the probe in pH 4 buffer for up to 20 minutes, then rinse with deionized water.
Blot dry with a lint-free cloth.
Remove the shroud
1. Loosen and remove the locking ring.
2. Slide the shroud and locking ring off the probe.
Install the shroud
1. Put the locking ring on the probe with the threads toward the probe.
2. Slide the shroud on the probe until it is against the locking groove.
3. Hand-tighten the locking ring on the shroud.
Storage
Short-term and long-term storage
For the best probe performance, do not let the reference junction dry out.
1. Rinse the probe with deionized water. Dry the probe with a lint-free cloth.
2. Fill the probe storage cap or soaker bottle half full with Hach Electrode Storage
Solution or 3 M potassium chloride (KCl) solution.
3. If a rugged probe, put the probe storage cap on the probe.
4. If a standard probe, put the soaker bottle on the probe and tighten the soaker bottle
cap.
5. Make sure that the solution in the storage cap or soaker bottle completely covers the
glass bulb and reference junction.
Note: The probe can also be stored in a sample for up to 2 hours if the sample pH is not high.
If the glass bulb becomes dry:
1. Soak the probe tip in the 4.01, 7.00 and 10.01 buffers each for 5 minutes.
2. Rinse the probe with deionized water. Blot dry with a lint-free cloth.
3. Calibrate the probe.
Troubleshooting
Message or symptom
Possible cause
Action
Probe not supported
Software not updated
To download the most current version of the software,
refer to the applicable product page on the manufacturer's
website.
Refer to the HQd Series meter manual for specific
instructions for the meter model.
HQd meter does not support
®
IntelliCAL probe
10
Contact a Technical Support Representative.
Message or symptom
Possible cause
Action
Connect a probe or probe
requires service
Probe not connected properly
Disconnect, then connect the probe. Tighten the locking
nut.
Software not updated
To download the most current version of the software,
refer to the applicable product page on the manufacturer's
website.
Refer to the HQd Series meter manual.
Large number of methods stored
Continue to let probe connect. Do not disconnect the
probe.
Damaged probe
Make sure there is connectivity with another probe or
meter to confirm isolated issue with probe. Contact a
Technical Support Representative.
Standard not recognized
error
Tape not removed from the
reference junctions
Remove the tape.
Standard not recognized
error
Probe storage cap or soaker
bottle not removed.
Remove the probe storage cap or soaker bottle.
Incorrect or contaminated buffer
solution
Use fresh buffer solution as specified in the method.
pH reading and/or mV
reading is same for all
solutions
Tape not removed from the
reference junctions
Remove the tape.
pH reading and/or mV
reading is same for all
solutions
Storage cap or soaker bottle not
removed
Remove the storage cap or soaker bottle.
Electrical issue
Contact a Technical Support Representative.
Slow stabilization time
Tape not removed from the
reference junctions
Remove the tape.
Slow stabilization time
Contaminated glass sensor
Clean the probe (refer to Clean the probe on page 9).
Poor contact between reference
junction and solution
Shake the probe in the solution from side to side to refresh
the reference junction.
Probe not prepared for sample
For the best stabilization time, soak the probe in the
sample for 10 to 15 minutes before doing a sample
measurement.
Low sample temperature or
temperature difference between
samples
Check the sample temperature. The lower the
temperature or the greater the difference of temperatures
between samples, the longer the stabilization time will be.
Air bubbles around inner
reference electrode
Gently tap the probe with hand or shake the probe
downward to remove any air bubbles.
Calibration not done correctly
Recalibrate using freshly prepared pH buffers.
Contaminated glass sensor
Clean the probe (refer to Clean the probe on page 9).
Slope exceeds the criteria for %
of theoretical (as defined in the
method slope limit)
1.
Calibration errors
2.
3.
Widen the slope limits by changing the
PHC101 calibration settings and method.
Recalibrate the probe.
Run a check standard to check the performance of
the probe.
11
Message or symptom
Possible cause
Action
Drifting/Inaccurate readings
Contaminated glass sensor
Clean the probe (refer to Clean the probe on page 9).
CO2 absorption (for low ionic
strength or high purity sample)
Use the LIS chamber for LIS/high purity samples to keep
sample contamination from occuring.
Air bubbles around inner
reference electrode
Rinse the reference junction holes with deionized water
and then gently tap the probe with hand or shake the
probe to remove any air bubbles.
Incorrect storage conditions
(discolored, contaminated or
dried gel)
Clean or condition the probe and do recalibration. The
probe may not operate correctly if the probe has been left
dry for a long time. Condition the glass sensor and
reference junctions again:
1.
2.
3.
Soak the probe tip in the 4.01, 7.00 and 10.01 buffers
each for 5 minutes.
Rinse with deionized water. Blot dry with a lint-free
cloth.
Calibrate the probe.
Electromagnetic Forces (EMF)
such as voltaic cells,
thermoelectric devices, eletrical
generators, resistors and
transformers.
Do not test in areas where EMF is present. For testing in
process units (i.e. spot checking), make sure the
equipment is grounded.
Out of range
Measurement value is outside of
range
Make sure that the sample is within the range of the
probe.
Temperature out of range
Temperature value is outside of
range
Make sure that the sample temperature is within the range
of the probe.
Make sure that the temperature sensor is working
correctly.
Measured pH buffer temperature
is outside range of the probe
Make sure that the standard temperature is within the
range of the probe.
Make sure that the temperature sensor is working
correctly.
Out of limits
Check standard temperature
value is outside of range
Make sure that the Check Standard temperature is within
the range of the probe.
Measurement value is outside of
measurement limits set in the
current method
Make sure that the sample is within the limits of the
current method.
Check standard value is outside
of limits set in the current method
Make sure that the check standard is within the limits of
the current method.
Create a new method with expanded limits.
Create another method that expands the acceptable limits.
HACH COMPANY World Headquarters
P.O. Box 389, Loveland, CO 80539-0389 U.S.A.
Tel. (970) 669-3050
(800) 227-4224 (U.S.A. only)
Fax (970) 669-2932
orders@hach.com
www.hach.com
©
HACH LANGE GMBH
Willstätterstraße 11
D-40549 Düsseldorf, Germany
Tel. +49 (0) 2 11 52 88-320
Fax +49 (0) 2 11 52 88-210
info@hach-lange.de
www.hach-lange.de
HACH LANGE Sàrl
6, route de Compois
1222 Vésenaz
SWITZERLAND
Tel. +41 22 594 6400
Fax +41 22 594 6499
Hach Company/Hach Lange GmbH, 2010, 2013. All rights reserved. Printed in U.S.A.
05/2013, Edition 2
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