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SENSION+ PH1

Hach-Lange SENSION+ PH1 User Manual [en, de, fr]

DOC022.98.90255
Manual
Bedienungsanleitung
Manuel utilisateur
07/2010, Edition 1
07/2010, Heft 1
07/2010, Edition 1
© HACH LANGE GmbH, 2010, All rights reserved. Printed in Spain
ENGLISH
FRANÇAIS DEUTSCH
CONTACT
Table of contents
1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. General information . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1. Safety information . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1.1. Use of hazard information . . . . . . . . . . . . . . 4
2.1.2. Precautionary labels . . . . . . . . . . . . . . . . . . 4
2.2. General information . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1. Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1.1. Component list . . . . . . . . . . . . . . . . . . . . . . 5
3.1.2. Accessories . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2. Battery power . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2.1. Inserting the batteries . . . . . . . . . . . . . . . . . 6
3.3. Disconnecting/connecting the electrode . . . . . . . . . . 7
3.4. Carrying case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4. Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1. General information . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2. User interface and browsing . . . . . . . . . . . . . . . . . . 8
4.2.1. Keyboard and display . . . . . . . . . . . . . . . . . 8
5. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.1. Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.1.1. Stability measuring . . . . . . . . . . . . . . . . . . . 9
5.1.2. Continuous measuring . . . . . . . . . . . . . . . . . 9
5.2. Changing measuring units (pH/mV) . . . . . . . . . . . . . 9
5.3. Calibrating the pH electrode . . . . . . . . . . . . . . . . . . 10
5.3.1. Preparation . . . . . . . . . . . . . . . . . . . . . . . . 10
5.3.2. One-point calibration . . . . . . . . . . . . . . . . . 10
5.3.3. Two- and three-point calibration . . . . . . . . . . 11
5.4. Calibrating the redox electrode . . . . . . . . . . . . . . . . 12
5.4.1. Preparation . . . . . . . . . . . . . . . . . . . . . . . . 12
5.4.2. Calibration . . . . . . . . . . . . . . . . . . . . . . . . 12
5.5. Readjusting temperature . . . . . . . . . . . . . . . . . . . . . 13
5.6. Manual calibration . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.6.1. Preparation . . . . . . . . . . . . . . . . . . . . . . . . 14
5.6.2. Calibration . . . . . . . . . . . . . . . . . . . . . . . . 14
5.7. Displaying calibration data . . . . . . . . . . . . . . . . . . . 15
5.8. Restoring factory settings . . . . . . . . . . . . . . . . . . . . . 16
5.9. Disabling auto power off . . . . . . . . . . . . . . . . . . . . 16
5.10. Changing temperature units . . . . . . . . . . . . . . . . . . 16
5.11. Display backlighting . . . . . . . . . . . . . . . . . . . . . . . 17
5.12. Shutting down the instrument . . . . . . . . . . . . . . . . . 17
6. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.1. Cleaning the measuring instrument and accessories . . 18
6.2. Storing the instrument . . . . . . . . . . . . . . . . . . . . . . 18
6.3. Changing batteries. . . . . . . . . . . . . . . . . . . . . . . . . 18
7. Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8. Accessories and spare parts . . . . . . . . . . . . . . . . . . 20
9. Buffer solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
10. Warranty, liability and complaints . . . . . . . . . . . . 22
Contact information
ENGLISH
1
1. Specifications
Subject to change without notice.
Specifications
Display Liquid crystal, backlit, with pictograms Keypad Membrane, 5 keys Measuring ranges pH –2.00 to 19.99
Resolution pH 0.01
Measuring error (± 1 digit) pH ≤ 0.01
Reproducibility (± 1 digit) pH ± 0.01
Temperature compensation With built-in Pt1000 temperature sensor Calibration standards pH: 2.00, 4.01, 7.00, 9.21, 10.01 (at 25 °C)
Input impedance > 10
mV ± 1400 Temperature –20.0 to 150.0 °C (–4.0 to 302.0 °F)
mV 1 (0.1 mV from –199.9 to 199.9 mV) Temperature 0.1 °C (0.1°F)
mV ≤ 1 Temperature ≤ 0.2 °C (≤ 0.4 °F)
mV ± 1 Temperature ± 0.1 °C (± 0.1 °F)
Redox: 220 mV (at 25 °C)
12
. The switch from high to low impedance is made in the electrode
connector.
Dimensions of the measuring instrument and ambient conditions
Operating temperature 0 °C to 50 °C (32 °F to 122 °F) Storage temperature –15 °C to 65 °C (5 °F to 149 °F) Ambient conditions 80% relative humidity (non-condensing) Weight 300 g Size 186 x 73 x 38 mm
Additional technical data
Energy management Automatic power off after 5 minutes of inactivity Type of protection IP 67 Power supply (batteries) 3 x 1.5V, type AA batteries
Conector MP-5, five-contact multipin
Autonomy of over 500 hours
Warranty
Warranty 2 years
ENGLISH
3
2. General information
As a result of constant improvements to our products sometimes differences may exist between this manual and the instructions supplied with the instrument.
2.1. Safety information
Please, read carefully this information before installing and using the instrument ! Pay attention to all danger and caution statements.
2.1.1. Use of hazard information
DANGER
Indicates a potentially or imminently hazardous situation that, if not avoided, will result in death or serious injury.
WARNING
Indicates a potentially or imminently hazardous situation that, if not avoided, may result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that, if not avoided, may result in minor or moderate injury.
Important note
Indicates a situation that, if not avoided, could lead to damage to the instrument. Important infor­mation that requires special emphasis.
Note
Information that supplements points in the main text.
2.1.2. Precautionary labels
Read all labels and tags attached to the instrument. Personal injury or damage to the instrument could occur if not observed.
This symbol references the instruction manual for operation 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.
2.2. General information
The
sensION ™+ PH 1
electrode (Fig. 3, pg. 7).
4
is a portable pH meter. To read the pH value, you will need to connect a pH
3. Installation
WARNING
Risk of falling. Measurements are made directly in situ with this instrument. To prevent the risk of
falling, ensure compliance with all local safety regulations on securing with ropes and on the use of adequate protective clothing and footwear.
Risk of injury. Do not attach the measuring instrument to your body. The measuring electrode could
be accidentally caught in a motor or stirrer and could endanger the user through the connected electrode cable.
ENGLISH
3.1. Content of the
sensION ™+ PH 1
3.1.1. Component List
Item Number Instrument Electrode Accessories Batteries Manual
LPV2500.98.0002 LPV2550T.98.002 LPV2551T.98.002 LPV2552T.98.002 LPV2555.98.0002
sensION ™+ PH 1 sensION ™+ PH 1 sensION ™+ PH 1 sensION ™+ PH 1 sensION ™+ PH 1
–– –– LZW5050T.97.002 LZW5051T.97.002 LZW5052T.97.002
LZW5055.97.0002
✓✓
✓
(1)
✓
(1)
✓
(1)
✓
(2)
✓✓
✓✓
✓✓
✓✓
3.1.2. Accessories
• Carrying case.
• (1) Buffer solutions, 125 mL, pH 4.01, pH 7.00
sensION™
and pH 9.21 (25 °C).
Calibration tubes, pH 4.01, pH 7.00
and pH 9.21.
• (2) Redox standard solution, 125 mL, 220 mV (25°C).
Tube for redox standard calibration 220 mV.
• KCl 3M, 50 mL.
• Two 90-mL bottles for sample and sensor
cleaning.
• Working electrode protectors (models 2551 T
and 2552 T only).
PH1
Fig. 1. Equipment composition
After removing the instrument, check each part for possible damage. All components on the attached list must be present. If there are any missing or damaged parts, contact the manufacturer or distributor.
5
3. Installation
+
+
+
3.2. Battery power
WARNING
Risk of fire or explosion. Use only AA alkaline batteries for the measuring instrument and ensure that
the batteries are correctly inserted in their compartment. Inserting batteries incorrectly can damage the instrument and cause fires or explosions.
The measuring instrument works with three batteries (1.5 V, AA).
The batteries supplied have a useful life of approximately 500 hours.
Important note: Never use different types of batteries together.
Important note: If the measuring instrument is not going to be used for a long period of time, remove
the batteries to prevent leakage in the instrument.
3.2.1. Inserting the batteries
1. Open the lid of the battery compartment by pressing and pulling on the tab.
2. Insert the batteries supplied (1.5 V AA). Note the polarity markings inside the battery compartment.
3. Close the lid of the battery compartment.
1
2
3
Tab
1
Battery compartment lid
4
Fig. 2. Inserting the batteries
6
2
Batteries
3
Battery compartment
4
3. Installation
3.3. Disconnecting/connecting the electrode
The
sensION ™+ PH 1
Sensor disconnection
Sensor connection
Important: do not unscrew the connector.
kits are supplied with the sensor attached to the instrument.
Fig. 3. Disconnecting/connecting the sensor to the measuring instrument
ENGLISH
3.4. Carrying case
The carrying case can be used as a support for both, instrument and sensor, see figure.
Electrode position when it is not in use.
7
4. Start-up
4.1. General information
Important note: Before start-up, make sure that the electrode is connected to the measuring instrument.
1. Connect the electrode (if necessary) to the measuring instrument (Fig. 3, pg. 7).
2. Turn on the instrument.
3. Perform calibration (see pg. 10-12).
4. Perform the measurement (see pg. 9).
Note: With the instrument switched off,
- Press the
- Press the
key and the instrument will begin measuring.
key and the instrument will begin calibration.
Software version. Instrument serial
4.2. User interface and navigation
4.2.1 Keyboard and display
Figure 4 indicates the instrument keys and display.
sensION™
1
2
3
PH1
4
5
number.
Standby screen.
Display
1 Measured pH/mV values.
2 Temperature.
3 Measuring time (hh:mm:ss).
4 Units of measurement.
5 Battery indicator.
Keypad
- Instrument on/off.
- Display light on.
- Start of measuring.
- Start of calibration.
- Selection of parameter to calibrate.
- Selection of temperature units.
Fig. 4. Keypad description
8
5. Operation
5.1. Measurement
measuring
Note: the instrument must be calibrated before reading the first pH value.
1. Press
2. Remove the electrode protector.
to turn on the instrument.
3. Clean the electrode with deionized water.
4. Stir the electrode uniformly in the sample, holding it
by the top.
5.1.1. Stability measuring
Follow the diagram. The reading is not locked on the screen until the elec­trode signal varies less than 0.01 pH (0.5 mV) for 6 sec. Once the reading has stabilized, the screen will light up for 2 sec.
5.1.2. Continuous measuring
Once stability measuring has begun, press the twice
.
The instrument displays the measured value directly on screen at all times. The continuous reading should always be started after beginning a stability reading (see diagram). To end a continuous reading, press
.
The display will light up for 2 sec.
Note: If the measuring instrument is not used for 5 min- utes, it will shut off automatically.
key
Stability
ENGLISH
Continuous
measuring
+
2 s
5.2. Changing measuring units (pH/mV)
To change the units of measurement from pH to mV or vice versa.
in Stability measuring, hold down the
key for 2 s
2 s
9
5. Operation
5
ml
P/
N.
LZW9460.
99
5
ml
P/
N.
L
ZW9461.
98
5
ml
P/
N.
LZW9462.99
ml
ml
P/
N.
L
ZW94
94
ml
ml
P/
N.
L
ZW94
94
ml
ml
P/
N.
LZW94
94
5.3. Calibrating the pH electrode
Important note: Before turning on the instrument, check that the pH electrode is connected
The instrument must be calibrated before taking the first pH reading. The calibration can be performed with 1, 2 or 3 points.
5.3.1. Preparation
1. Fill the tubes with the buffer solutions (note the fill level).
2. Unscrew the protector containing the electrolyte and rinse the electrode with deionized water.
3. Screw the electrode on to the tube containing the first buffer.
1 2 3
Fig. 6. Preparation
5.3.2. One-point calibration
Stir gently holding the sensor by the handle. Do not hold it by the tube to avoid heating of the buffer solution. Follow the diagram on the next page. One-point calibration is acceptable when pH values around that of the buffer used are being measured. One-point calibration only corrects the asymmetry potential of the electrode.
Notes: If the measuring instrument is not used for 5 minutes, it shuts off automatically. If errors occur during calibration, an error message will appear on the display screen (see pg. 19).
10
5. Operation
5.3.3. Two- and three-point calibration
Follow the diagram below.
The equipment will repeat the process described for the first buffer solution with the second and third.
Stir gently holding the sensor by the handle. Do not hold it by the tube to avoid heating of the buffer solution.
Notes: if the measuring instrument is not used for 5 minutes, it shuts off automatically. If errors occur during calibration, an error message will appear on screen (see pg. 19). When you switch buffers, rinse the electrode with deionized water. The buffer solutions in the calibration tubes can be used for approximately four or five calibrations. It is recommended to use fresh buffers.
ENGLISH
Screw the electrode to the 1st tube.
To exit calibration
Screw the
electrode
to the 2nd tube.
(One point calibration)
11
5. Operation
ml P/N.
LZW9462
ml
ml
P/N.
LZW94
94
5.4. Calibrating the redox electrode
Important note: Before turning on the instrument, check that the Redox electrode is connected.
Redox electrodes do not have a significant drift of the potential, which is why they are typically not calibrated. However, some deviations of potential may occur after continued use of the electrode as a result of changes to the metal surface or contamination of the reference elec­trode.
5.4.1. Preparation
1. Fill the tube with the 200 mV standard solution (note the fill level).
2. Unscrew the electrode protector containing the electrolyte and rinse
the electrode with deionized water.
3. Screw the electrode on to the tube containing the standard.
1
2 3
Screw the electrode to the standard tube.
5.4.2. Calibration
Stir gently holding the sensor by the handle. Do not hold it by the tube to avoid heating of the standard solution. Follow the diagram.
Notes: If the measuring instrument is not used for 5 minutes, it shuts off automatically. If errors occur during calibration, an error message will appear on the display screen (see pg. 19). During redox calibration, the temperature of the standard must be manu­ally entered (by pressing
12
during the process).
5. Operation
5.5. Readjusting temperature
The instrument can correct the deviation of a temperature probe (built into pH electrodes) at 25 °C and 85 °C (77 °F and 185 °F). This allows the instrument to be used as a precision thermometer. Follow the diagram.
ENGLISH
2 s
Enter the correction of
the temperature sensor at
25 °C (77 °F).
Enter the correction of
the temperature sensor at
85 °C (185 °F).
13
5. Operation
5.6. Manual calibration
Important note: Before turning on the instrument, check that the pH electrode is connected.
Manual readjustment of pH (or mV) measured at any value within the range. When readjusting pH, the instrument behaves as though it were calibrated with a single buffer solution.
5.6.1. Preparation
1. Unscrew the electrode protector containing the electrolyte.
2. Rinse the electrode with deionized water.
3. Dip the electrode into the solution in which manual cali-
bration is to be performed.
Note: Before beginning manual calibration, you must take a measurement in the standard to be used in the calibration
(1)
pH REDOX
5.6.2. Calibration
Stir gently holding the sensor by the handle. Follow the diagram.
(1) Hold down
Notes: If the measuring instrument is not used for 5 minutes, it turns itself off automatically. If errors occur during calibration, an error message will ap­pear on the display screen (see pg. 19). Before beginning manual calibration, you must take a mea­surement in the standard to be used in the calibration.
Important: To exit calibration without saving the adjustment, press
14
.
and then press .
(1)
5. Operation
5.7. Displaying calibration data
To view the data obtained after calibration on screen.
Note: If the pH was calibrated at three points, the data for the two slopes obtained will be displayed.
(1)
pH REDOX
ENGLISH
Slope
Asymmetry potential
(1)
Sensitivity (%) Deviation obtained
Calibration temperature Calibration temperature
Number of buffer
solutions used
(1) Press the
keys simultaneously.
Standard used
15
5. Operation
5.8. Restoring factory settings
The current calibration can be erased and restored to the factory settings.
pH REDOX
5.9. Disabling auto power off
If the measuring instrument is not used for 5 minutes, it shuts off auto­matically. This automatic power off feature can be disabled.
2 s
2 s
2 s
Automatic power
off is disabled
etc.
5.10. Changing temperature units
The instrument is shipped ready to measure temperature and express the values in °C. Follow the diagram to change the units to °F.
Stable measurement
(1)
(1) Press the
16
keys simultaneously.
5. Operation
5.11. Display backlighting
At the end of a measurement, whether in stability or continuous, the screen automatically lights up for 2 seconds. The user can also light up the screen at any other time by pressing seconds.
Changing backlighting time
Follow the diagram.
Notes: Only the time of the manual backlighting of the display can be modified. You cannot change the automatic backlighting time (2 sec.) after completing a measurement. By increasing the display's backlighting time, you reduce the autonomy of the instrument (battery life).
3 s 6 s
, which will backlight the screen for 3
Immediately
inmediatamente
ENGLISH
Continuous backlighting
In low-light environments, it is advisable to work with the screen lit.
Note: Backlighting the display reduces the autonomy of the instrument (battery life).
5.12. Shutting down the instrument
Follow the diagram.
2 s
17
6. Maintenance
ATTENTION
Potentially dangerous to skin and eyes with chemical/biological exposure.
The tasks described in this section of the manual should only be performed by qualified personnel.
6.1. Cleaning the measuring instrument and accessories
Important note: Never use cleaning products such as turpentine, acetone or similar products to clean the instrument, including the screen and accessories.
Only clean the Carrying case and accessories with a soft damp cloth. A mild soap solution can also be used. Dry the clean parts carefully with a soft cotton cloth.
6.2. Storing the instrument
When preparing to store the instrument for long periods of time, remove the batteries to prevent leakage and subsequent damage to the measuring instrument.
6.3. Changing batteries
WARNING
Risk of fire or explosion. Use only AA alkaline batteries for the measuring instrument and ensure that
the batteries are correctly inserted in their compartment. Inserting batteries incorrectly can damage the measuring instrument and cause fires or explosions
The batteries supplied have a useful life of approximately 500 hours.
1. Press
2. Disconnect the electrode.
3. Open the lid of the battery compartment (Fig. 2, pg. 6).
4. Remove the old batteries.
5. Insert the new batteries (1.5V AA). Note the polarity markings inside the battery compartment.
Important note: never use different types of batteries together.
6. Close the lid of the battery compartment.
18
to turn off the instrument.
7. Error messages
Display Caused by Action
Measurement (pH, mV, temperature) out of range.
Low battery charge. Replace the batteries.
Check sensor.
ENGLISH
E1
E2
E3
E4
E5
E6
Unstable reading during a stability measurement or during calibration. 100-second timeout.
pH electrode sensitivity out of range. Accepted values 70-105 %.
Asymmetry potential out of range. Accepted values ± 58 mV.
Buffer solution not recognised.
Same buffer solutions.
The calibration solutions have different temperatures.
Check that the sensor is properly immersed in the sample.
Connect a new electrode.
Connect a new electrode.
Check sensor. Check buffer solution.
Check sensor. Check buffer solution.
Adjust the calibration solutions to the same temperature.
19
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