Hach sension ph31 User manual

DOC022.97.90249
sensION™+ pH31
03/2013, Edition 3
User Manual
Manuel d'utilisation
Manual del usuario
Manual do Usuário
用户手册
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Specifications
Specifications are subject to change without notice.
Specification Details
Dimensions 35 x 20 x 11 cm (13.78 x 7.87 x 4.33 in.)
Weight 1100 g (2.43 lb)
Meter enclosure IP42
Power requirements
(external)
100–240 V, 0.4 A, 47-63 Hz
Meter protection class Class II
Storage temperature –15 to +65 °C (5 to +149 °F)
Operating temperature 0 to 40 °C (41 to 104 °F)
Operating humidity < 80% (non-condensing)
Resolution pH: 0.1/0.01/0.001, ORP: 0.1/1 mV, temperature:
0.1 ºC (0.18 ºF)
Measuring error (± 1 digit) pH: ≤ 0.002, ORP: ≤ 0.2 mV, temperature: ≤ 0.2 ºC
(≤ 0.36 ºF)
Reproducibility (± 1 digit) pH: ± 0.001, ORP: ± 0.1 mV, temperature: ± 0.1 ºC
(± 0.18 ºF)
Data storage 330 results and last 9 calibrations
Connections Combined or indicator probe: BNC connector (Imp.
>1012Ω); Reference electrode: banana connector;
A.T.C. type Pt 1000: banana or telephonic
connector; magnetic stirrer: RCA connector
RS232C for printer or PC: telephonic connector;
external PC keyboard: mini DIN connector
Temperature correction Manual, Pt 1000 temperature probe (A.T.C.), NTC
10 kΩ probe
Isopotential pH programmable, standard value 7.00
Measurement display lock Continuous measurement, by stability and by time
Specification Details
Display Liquid crystal, backlit, 128 x 64 dots
Keyboard PET with protective treatment
Certification CE
General information
Revised editions are found on the manufacturer’s website.
Safety information
NOTICE
The manufacturer is not responsible for any damages due to misapplication or
misuse of this product including, without limitation, direct, incidental and
consequential damages, and disclaims such damages to the full extent permitted
under applicable law. The user is solely responsible to identify critical application
risks and install appropriate mechanisms to protect processes during a possible
equipment malfunction.
Please read this entire manual before unpacking, setting up or operating
this equipment. Pay attention to all danger and caution statements.
Failure to do so could result in serious injury to the operator or damage
to the equipment.
Make sure 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 manual.
Use of hazard information
DANGER
Indicates a potentially or imminently hazardous situation which, if not avoided, will
result in death or serious injury.
W A R N I N G
Indicates a potentially or imminently hazardous situation which, if not avoided,
could result in death or serious injury.
English 3

CAUTION
Indicates a potentially hazardous situation that may result in minor or moderate
injury.
NOTICE
Indicates a situation which, if not avoided, may cause damage to the instrument.
Information that requires special emphasis.
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, if noted
on the instrument, will be included with a danger or caution statement in
the manual.
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
2002/98/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 auxillary items for proper disposal.
Product overview
The sensION™+ meters are used with probes to measure various
parameters in water.
The sensION™+ PH31 meter measures pH, ORP (mV) or temperature.
Measurement data can be stored and transferred to a printer or PC.
Product components
Refer to Figure 1 to make sure that all components have been received.
If any items are missing or damaged, contact the manufacturer or a
sales representative immediately.
Figure 1 Meter components
1 Electrolyte for the probe 5 Power supply
2 Buffer solutions (pH 4.01, pH
7.00 and pH 10.01)
6 Rod with o-ring
3 Calibration beakers (with magnetic
bar inside)
7 Probe (included with kits only)
4 Probe holder 8 Meter
Installation
Assemble the probe holder
Follow the numbered steps to assemble the probe holder and to connect
the magnetic stirrer.
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1 2
3 4
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Connect to AC power
DANGER
Electrocution hazard. If this equipment is used outdoors or in
potentially wet locations, a Ground Fault Circuit Interrupt (GFCI/GFI)
device must be used to connect the equipment to its main power
source.
The meter can be powered by AC power with the universal power
adapter.
1. Select the correct adapter plug for the power outlet from the adapter
kit.
2. Connect the universal power adapter to the meter (Figure 2).
3. Connect the universal power adapter to an AC receptacle (Figure 3).
4. Turn the meter on.
Figure 2 Connector panel
1 Reference electrode (separated
electrodes) connector
5 PC keyboard, mini DIN connector
2 Separated temperature probe
connector
6 Temperature probe connector
3 RS-232 for printer or PC connector 7 Combined pH electrode (or
indicator) connector
4 Power supply 8 Magnetic stirrer connector
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Figure 3 AC power connection User interface and navigation
User interface
Keypad description
1 RETURN key: cancel or exit the
current menu screen to the
previous menu screen
5 DOWN key: scroll to other options,
change a value
2 MEASUREMENT key: confirm the
selected option
6 ON/OFF: turn on or turn off the
meter
3 UP key: scroll to other options,
change a value
7 LEFT key: change the measuring
unit, enter numbers and letters
4 RIGHT key: change the measuring
unit, enter numbers and letters
Display description
The meter display shows the concentration, units, temperature,
calibration status, operator ID, sample ID, date and time.
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Figure 4 Single screen display
1 Sample ID 4 Sample temperature (ºC or ºF)
2 Measurement unit and value (pH,
ORP (mV))
5 Visual measurement timer
3 Measurement mode or time and
date
Navigation
Use the to return to the previous menu. Use the measure key to
take a sample measurement or to confirm options. Use the arrow keys
to scroll to other options or to change a value. To change the
parameters use the arrow keys and . Refer to each task for specific
instructions.
Start-up
Turn the meter on and off
NOTICE
Make sure that the probe is connected to the meter before the meter is turned on.
Push to turn on or turn off the meter. If the meter does not turn on,
make sure that the AC power supply is properly connected to an
electrical outlet.
Change the language
The display language is selected when the meter is powered on for the
first time.
1. Use the or to select a language from a list.
2. Confirm with . The measurement screen shows DATA OUTPUT.
3. Select Deactivated if no printer or PC is connected and confirm.
Refer to Select the data output on page 11 for more information
about Data Output.
Standard operation
Calibration
W A R N I N G
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 material safety data sheets (MSDS) for safety protocols.
Calibration settings
The calibration settings contain Calibration type, Calibration frequency
and Display options.
1. From the main menu use the or to select CALIBRATION.
Confirm.
2. Use the to enter the calibration menu.
3. Use the or to select the following options:
Option Description
Stability C.: Criterion by stability—select Fast, Standard or Strict.
Calibration type Calibration type—select Technical buffers,
DIN19266 Buffers, User Buffers, To a X value, data
introduction or Theoretical calibration. Refer to
Calibration types for more information.
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Option Description
Cal. frequency Calibration reminder—can be set between 0–7 days
(default daily). The display shows the remaining time to
the new calibration. Refer to Set the calibration reminder
on page 10 for more information.
Display mV Display mV—select YES or NO to show mV.
Standard 220 mV Standard 220 mV—calibrate with a 220 mV standard
solution
To a X value To a X value—use a specific standard solution. Adjust
the value during the calibration.
Data introduction Data introduction Compensation—enter the
compensation value
Factory adjust Factory adjust—enter the compensation value
Calibration types
Different calibration types can be selected.
1. From the main menu use the or to select CALIBRATION.
Confirm.
2. Use the to enter the calibration menu.
3. Use the or to select Calibration type.
Option Description
Technical buffers pH 2.00, 4.01, 7.00, 9.21 and 10.01 at 25 °C
(77 °F)
DIN19266 Buffers pH 1.679, 4.006, 6.865, 7.000, 9.180, 10.012 and
12.454
User Buffers Selected when the technical or DIN19266 buffers
are not used. Refer to Technical buffer solutions
(DIN 19267) on page 18 for pH values of
specific buffer sets at varying temperatures.
Calibration to a X value To adjust manually any scale value of the
measured pH.
Option Description
Data introduction Manual probe constant introduction.
Theoretical calibration The probe calibration data is replaced at 25 °C
(77 °F).
Calibration procedure
This procedure is for general use with liquid calibration solutions. Refer
to the documents that are included with each probe for additional
information.
Note: Solutions should be stirred during calibration. For more information about the
stirring settings, refer to Change the stirring settings on page 12.
1. Pour the buffers or calibration solutions into the labeled calibration
beakers.
2. From the main menu use the or and and to select the
CALIBRATION parameter. Confirm.
3. If required select the Operator ID (1 to 10) and confirm.
4. Rinse the probe with deionized water and put the probe into the first
calibration beaker. Be sure that there are no air bubbles in the
membrane.
5. Push to Start calibration.
6. Push to measure the first calibration solution.
The next calibration solution is shown.
7. Rinse the probe with deionized water and put the probe into the
second calibration beaker. Be sure that there are no air bubbles in
the membrane.
8. Push to measure the second calibration solution.
The next calibration solution is shown.
9. Rinse the probe with deionized water and put the probe into the third
calibration beaker. Be sure that there are no air bubbles in the
membrane.
10. Push to measure the third calibration solution.
When the calibration is good, the display briefly shows Calibration
OK and then returns to the main menu.
Note: When a printer is connected the print menu opens and the result can be
printed.
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View the calibration data
Data from the most recent calibration can be shown.
1. From the main menu use the or to select DATA LOGGER.
Confirm.
2. Select Display data.
3. Select Calibration data and confirm with . The last calibration data
is shown.
• pH-the slope and offset values are shown alternating with the
deviation (in %) and calibration temperature.
•ORP-the measured mV value and calibration temperature are
shown.
• Conductivity-the cell constant and calibration temperature for each
standard are shown.
Set the calibration reminder
The calibration reminder can be set between 0 to 23 hours or 1-7 days
(default 1 day). The display shows the remaining time to the new
calibration.
Note: When 0 days is selected, the calibration reminder is turned off.
1. From the main menu use the or to select CALIBRATION.
Confirm.
2. Use the to enter the calibration menu.
3. Use the or to select Cal. frequency and confirm.
4. Use the and to advance to the next step and use the or to
change a value. Confirm.
Push to start the calibration.
Sample measurements
Each probe has specific preparation steps and procedures for taking
sample measurements.
1. From the main menu use the or and and to select
MEASURE. Confirm.
2. Use the to change the following settings. Confirm every entry.
Option Description
Resolution Select the resolution: 1, 0.1, 0.01 (default) or 0.001
Measure Stability—select By stability Criterion: Fast (variation <
0.02 pH in 6 s), Standard (variation < 0.01 pH in 6 s) or Strict
(variation < 0.002 pH in 6 s). In continuous—enter the time
interval for the In continuous Acquis. interval (data storage or
printing data). By time—enter the time interval for data storage
or printing data.
Display mV Display mV—select YES or NO to show mV.
Limits Limits—select YES or NO. YES: Enter the upper and lower
limits. An acoustic warning appears when the measurement is
out of limit. The report output shows an A next to the
measured value when the measurement was out of limit.
Isopotential Isopotential—change the Isopotential pH value in Data
introduction. Select Calculate to calibrate the probe again.
3. Push to start the measurement.
Note: If the measurement is not stabilizing after 120 seconds, the meter turns
automatically into the continuous measurement mode.
Advanced operation
Use a sample ID
The sample ID tag is used to associate readings with a particular sample
location. If assigned, stored data will include this ID.
1. From the main menu use the or to select SYSTEM. Confirm.
2. Use the or to select Sample ID and confirm.
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3. Use the or to select
Option Description
Automatic A consecutive number will be automatically assigned to every
sample.
Manual A keyboard or a barcode scanner is required to enter the
sample ID name before taking a measurement (maximum
15 characters).
Select the data output
Data can be stored or transferred to a printer or to a PC.
1. From the main menu use the or to select SYSTEM. Confirm.
2. Use the or to select Data Output and confirm.
3. Use the or to select
Option Description
Deactivated Select Deactivated if no printer or PC is connected.
For Printer Select Dot matrix printer or Thermal printer.
For Computer Select Terminal, LabCom or LabCom Easy. The LabCom
Software controls several modules, pH and conductivity
meters, automatic burettes, Samplers and so on from a
computer. The LabCom Easy software gets pH and
conductivity data from a PC.
Change the date and time
The date and time can be changed from the Date / Time menu.
1. From the main menu use the or to select SYSTEM. Confirm.
2. Use the or to select Date / Time and confirm.
3. Use the and to advance to the next step and use the or to
change a value. Confirm.
The current date and time will be shown on the display.
Adjust the display contrast
1. From the main menu use the or to select SYSTEM. Confirm.
2. Use the or to select Display contrast and confirm.
3. Use the and to adjust the contrast of the display and confirm.
Adjust the temperature
The temperature measurement can be adjusted at 25 °C (77 °F) and/or
85 °C (185 °F) to increase accuracy.
1. Put the probe and a reference thermometer in a container of water at
approximately 25 °C and allow the temperature to stabilize.
2. Compare the temperature read by the meter with that of the
reference thermometer. The difference is the adjustment value for
the meter.
Example: reference thermometer: 24.5 °C; meter: 24.3 °C.
Adjustment value: 0.2 °C.
3. Enter the adjustment value for the 25 °C reading:
a. From the main menu use the or to select SYSTEM. Confirm.
b. Use the or to select Readjust temp. and confirm.
c. Use the or to select 25 °C and confirm.
d. Use the arrow keys to enter the adjustment value for 25 °C.
Confirm.
4. Put the probe and a reference thermometer in a container of water at
approximately 85 °C and allow the temperature to stabilize.
5. Compare the temperature from the meter with that of the reference
thermometer. The difference is the adjustment value for the meter.
a. Use the or to select 85 °C and confirm.
b. Use the arrow keys to enter the adjustment value for 85 °C.
Confirm.
c. Select Save changes and confirm.
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