Hach sensION+ pH1 Manual do usuário

DOC022.97.90255

Manual

Manual de instruções

Manuel utilisateur

操作手册

07/2010, Edition 1

07/2010, Edición 1

07/2010, Edição 1

07/2010, Edition 1

2010

年7月，第一版

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sensION+ PH1_HACH_0710.indd 2sensION+ PH1_HACH_0710.indd 2 7/9/10 13:08:557/9/10 13:08:55

ENGLISHESPAÑOLFRANÇAIS PORTUGUÊSCONTACT

中文

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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. Limited warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Contact information

ENGLISH

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3

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

mV ± 1400

Temperature –20.0 to 150.0 °C (–4.0 to 302.0 °F)

Resolution pH 0.01

mV 1 (0.1 mV from –199.9 to 199.9 mV)

Temperature 0.1 °C (0.1°F)

Measuring error (± 1 digit) pH ≤ 0.01

mV ≤ 1

Temperature ≤ 0.2 °C (≤ 0.4 °F)

Reproducibility (± 1 digit) pH ± 0.01

mV ± 1

Temperature ± 0.1 °C (± 0.1 °F)

Temperature compensation With built-in Pt1000 temperature sensor

Calibration standards pH: 2.00, 4.01, 7.00, 9.21, 10.01 (at 25 °C)

Redox: 220 mV (at 25 °C)

Input impedance > 10

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

Autonomy of over 500 hours

Conector MP-5, five-contact multipin

Warranty

Warranty 3 years

ENGLISH

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4

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 infor-

mation 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

is a portable pH meter. To read the pH value, you will need to connect a pH

electrode (Fig. 3, pg. 7).

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3. Installation

3.1.1. Component List

Item Number Instrument Electrode Accessories Batteries Manual

LPV2500.97.0002

sensION ™+ PH 1

–– ––

✓✓

LPV2550T.97.002

sensION ™+ PH 1

LZW5050T.97.002

✓

(1)

✓✓

LPV2551T.97.002

sensION ™+ PH 1

LZW5051T.97.002

✓

(1)

✓✓

LPV2552T.97.002

sensION ™+ PH 1

LZW5052T.97.002

✓

(1)

✓✓

LPV2555.97.0002

sensION ™+ PH 1

LZW5055.97.0002

✓

(2)

✓✓

ENGLISH

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.

3.1. Content of the

sensION ™+ PH 1

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.

3.1.2. Accessories

• Carrying case.

• (1) Buffer solutions, 125 mL, pH 4.01, pH 7.00

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).

Fig. 1. Equipment composition

PH1

sensION

™

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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.

Fig. 2. Inserting the batteries

1

Tab

2

Battery compartment lid

3

Batteries

4

Battery compartment

+

2

1

3

4

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7

3. Installation

ENGLISH

3.3. Disconnecting/connecting the electrode

The

sensION ™+ PH 1

kits are supplied with the sensor attached to the instrument.

Fig. 3. Disconnecting/connecting the sensor to the measuring instrument

Sensor disconnection

Sensor connection

Important: do not unscrew the connector.

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.

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4. Start-up

4.1. General information

Important note: Before start-up, make sure that the electrode is connected to the measuring instrument.

Fig. 4. Keypad description

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.

1

2

3

PH1

sensION

™

5

4

4.2. User interface and navigation

4.2.1 Keyboard and display

Figure 4 indicates the instrument keys and display.

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

key and the instrument will begin measuring.

- Press the

key and the instrument will begin calibration.

Software version. Instrument serial

number.

Standby screen.

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5. Operation

ENGLISH

5.1. Measurement

Note: the instrument must be calibrated before reading

the first pH value.

1. Press

to turn on the instrument.

2. Remove the electrode protector.

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 elec-

trode 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

key

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.

2 s

+

Stability

measuring

Continuous

measuring

5.2. Changing measuring units

(pH/mV)

To change the units of measurement from pH to mV

or vice versa.

2 s

in Stability measuring, hold down the

key for 2 s

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10

5. Operation

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).

Fig. 6. Preparation

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.

5

ml

P/

N.

LZW9460.

99

5

ml

P/

N.

L

ZW9461.

98

5

ml

P/

N.

LZW9462.99

ml

P/

N.

L

ZW94

94

ml

P/

N.

L

ZW94

94

ml

P/

N.

LZW94

94

1 2 3

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11

5. Operation

ENGLISH

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.

Screw the

electrode

to the 1st tube.

Screw the

electrode

to the 2nd tube.

To exit

calibration

(One point

calibration)

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12

5. Operation

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 elec-

trode.

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.

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 manu-

ally entered (by pressing

during the process).

ml P/N.

LZW9462

ml

P/N.

LZW94

94

2 3

Screw the

electrode

to the

standard

tube.

1

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13

5. Operation

ENGLISH

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.

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).

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14

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

5.6.2. Calibration

Stir gently holding the sensor by the handle.

Follow the diagram.

(1) Hold down

and then press

.

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 ap-

pear on the display screen (see pg. 19).

Before beginning manual calibration, you must take a mea-

surement in the standard to be used in the calibration.

Important: To exit calibration without saving the adjustment,

press

.

pH REDOX

(1)

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15

5. Operation

ENGLISH

5.7. Displaying calibration data

To view the data obtained after calibration on screen.

pH REDOX

Slope

Asymmetry potential

Sensitivity (%) Deviation obtained

Calibration temperature Calibration temperature

Number of buffer

solutions used

Standard used

(1)

(1) Press the

keys simultaneously.

Note: If the pH was

calibrated at three

points, the data for the

two slopes obtained will

be displayed.

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16

5. Operation

5.8. Restoring factory settings

2 s

pH REDOX

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.

5.9. Disabling auto power off

If the measuring instrument is not used for 5 minutes, it shuts off auto-

matically. This automatic power off feature can be disabled.

2 s

etc.

Automatic power

off is disabled

Stable measurement

The current calibration can be erased and

restored to the factory settings.

(1)

(1) Press the

keys simultaneously.

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