INSTRUCTION MANUAL

CyberScan pH/Ion 510

Bench pH/Ion/mV Meter

68X090811 ver 1.0 12/99

Technology Made Easy…

PREFACE

Thank you for choosing Eutech Instruments’ CyberScan pH 510 pH/mV/Temperature or CyberScan

Ion 510 Ion/pH/mV/Temperature bench meter.

The instruction manual functions in two ways: firstly as a step-by-step guide to help you operate the

CyberScan 510 series meter. Secondly, it serves as a handy reference guide.

The instruction manual is written to cover as many anticipated applications of the CyberScan pH/Ion

510 Bench meter series as possible. If there are doubts in the use of the instrument, do not hesitate to contact the nearest Eutech Instruments Authorized Distributor or Eutech Instruments at (65) 778-

6876 or E-mail at [email protected].

Kindly remember to fill in the warranty card and mail back to your authorized distributor.

Eutech Instruments cannot accept any responsibility for any damage or malfunction to the meter caused by improper use of the instrument.

Note: Eutech Instruments Pte Ltd. reserves the right to make improvements in design, construction, and appearance of our products without notice.

Copyright

©

1999 Eutech Instruments Pte. Ltd. All rights reserved. Version 1.0 on 12/99

CyberScan pH 510/Ion 510

TABLE OF CONTENTS

1 INTRODUCTION .............................................................................................................................. 3

1.1

1.2

1.3

1.4

Introducing the CyberScan Series ............................................................................................................3

Custom LCD .............................................................................................................................................3

Keypad......................................................................................................................................................3

Rear Instrument Panel ..............................................................................................................................4

2 STARTING UP ................................................................................................................................. 5

2.1

2.2

Connecting the Sensor Electrode .............................................................................................................5

Connecting the Temperature Probe..........................................................................................................5

2.3

2.4

Connecting the A/C Adapter .....................................................................................................................5

Connecting the Chart Recorder ................................................................................................................5

2.5

Connecting the Electrode Holder (Optional) .............................................................................................5

2.6

2.6.1

2.6.2

2.6.3

2.6.4

Steps Prior to Calibration ..........................................................................................................................6

Switching ‘ON’ and ‘OFF’ the meter..................................................................................................6

Selecting Measurement Mode ..........................................................................................................6

Meter Reset ......................................................................................................................................6

Selecting pH Buffer Standard ...........................................................................................................6

3 CALIBRATION ................................................................................................................................. 7

3.1

3.2

3.3

3.4

pH Calibration ...........................................................................................................................................7

Ion Concentration Calibration (For Ion 510 only) ......................................................................................9

mV Calibration ........................................................................................................................................10

Temperature Calibration .........................................................................................................................11

4 MEASUREMENT ........................................................................................................................... 12

4.1

4.2

4.3

4.4

4.5

Automatic Temperature Compensation (ATC)........................................................................................12

Manual Temperature Compensation (MTC) ...........................................................................................12

Taking Measurements ............................................................................................................................12

HOLD Function .......................................................................................................................................13

Storing and Recalling Data from Memory ...............................................................................................13

5 SETUP FUNCTIONS...................................................................................................................... 15

5.1

5.2

5.3

5.4

P1.0 Clear Memory ................................................................................................................................15

P2.0 Viewing Electrode Diagnosis ........................................................................................................16

P3.0 Selecting pH Buffer Standard ........................................................................................................17

P4.0 Meter Reset ...................................................................................................................................17

6 pH Electrode Maintenance........................................................................................................... 18

6.1

Storage ...................................................................................................................................................18

6.2

6.2.1

After Use.................................................................................................................................................18

Electrolyte Replacement (for refillable electrodes only) ..................................................................18

6.3

Electrode Cleaning .................................................................................................................................18

6.4

6.4.1

pH Electrode Rejuvenation .....................................................................................................................19

Rejuvenation Procedure .................................................................................................................19

7 TROUBLESHOOTING GUIDE....................................................................................................... 20

7.1

7.2

Error Messages ......................................................................................................................................20

Troubleshooting ......................................................................................................................................20

8 ADDITIONAL INFORMATION ....................................................................................................... 21

8.1

8.2

8.3

pH and Temperature...............................................................................................................................21

Use of Standard pH Buffers ....................................................................................................................21

Standard pH Buffers ...............................................................................................................................21

8.4

8.5

8.4.1

8.4.2

8.4.3

List of Accessories ..................................................................................................................................22

pH Buffers/Sachets, Reference Electrolyte & Others......................................................................22

Ion Selective Electrodes (ISE) ........................................................................................................22

pH & ORP Electrodes .....................................................................................................................23

Specifications..........................................................................................................................................24

8.6

8.6.1

Warranty .................................................................................................................................................24

Return of Items ...............................................................................................................................24

2

CyberScan pH 510/Ion 510

1 INTRODUCTION

1.1 Introducing the CyberScan Series

The Eutech Instruments’ CyberScan pH 510 and CyberScan Ion 510 bench meters are microprocessor-based which incorporates new ASIC (Application Specific Integrated Circuit). It is designed with many advanced userfriendly features with the convenience of users in mind. The meters are capable of storing and recalling up to

50 data sets in its non-volatile memory. In addition, as a space saver, an optional swivel electrode holder can be attached at the either side of bench meter for resting the electrodes and probes during operation.

The CyberScan pH 510 meter is capable of measuring pH/ORP with Temperature; while the CyberScan Ion

510 meter measures Ion Concentration/pH/ORP with temperature. It is equipped with a large customized LCD

(Liquid Crystal Display) with simultaneous display of the measured values for easy reading. It is most ideal for routine pH/Ion Concentration measurement in indoor applications.

The CyberScan 510 meter is characterized by a large custom dual LCD. The display has mode annunciators for pH, mV, ppm and temperature readings. The secondary (lower) display shows the temperature reading simultaneously with the primary (upper) display that shows the measured values of pH, ppm or mV. Special annunciators such as units of measure, error message, graphical icons and modes of operation are arranged around both primary and secondary display to give you a comprehensive yet uncluttered display.

SETUP – The meter is in SETUP mode.

MEAS

-

The instrument is in the measurement mode.

CAL

-

The instrument is in the calibration mode

.

MEM

-

Data is stored into memory

-

The measured value has stabilized.

HOLD

-

The displayed value has been frozen.

ERR

-

An error in operation has occured

.

Buffer

-

Prompts user to select buffer during calibration, or indicates buffer error when flashing together with the ERR annunciator.

SETUP

READY

HOLD

ON

OFF

MEAS

MEM

ERR

AM PM

CAL

ELECTRODE

- indicates electrode error when it appears with ERR.

MEM

R.mV

pH ppm

C F pH

ATC

Shows the respective mode of operation.

ATC (Automatic

Temperature

Compensation)

activated. If ATC is not displayed, temperature probe is not connected.

In this case the Manual

Temperature

Compensation is activated.

pH – Indicates buffer values of respective

USA or NIST buffer option set.

1.3 Keypad

A large splashproof membrane keypad with tactile feedback makes meter easy to use. Names and symbols describe the function button controls.

Key

ON/OFF

Measurement Mode

Powers the meter ON/OFF. When the meter is switched on, it automatically starts in the last mode of operation.

Calibration / Setup Mode

3

CyberScan pH 510/Ion 510

CAL/MEAS

Toggles between the measurement and calibration modes of the meter. In SETUP mode, pressing CAL/MEAS key returns to the measurement mode.

MODE

HOLD

ENTER

Toggles between the different measurement modes available pH/Temperature/mV/Ion.

MI inputs measurements into memory and scrolls through memory values.

MR recalls measurements from memory and scrolls through memory values.

Switches from pH to Temperature in pH calibration mode

▲ scrolls values in mV calibration mode and selects temperature values and ion options in calibration mode. Scrolls to next program in the SETUP mode.

▼ scrolls values in mV calibration mode and selects temperature values and ion options in calibration Scrolls to next program in the SETUP mode.

Freezes a measurement on the display. Press again to get current readings.

Enter functions in the memory mode.

Confirms and enters the value selected for calibration.

You can also configure functions like Meter Reset, Memory Clear and Selection of pH Buffer Standard via its keypad. Please refer to Section 5 for more information on the above functions.

1.4 Rear Instrument Panel

The CyberScan 510 series meter provides a complete set of connectors for the various accessories commonly used. Listed in the table are the details of the connections that you can make.

Rear View of Meter

Connection

ATC

INPUT

REF

REC

GND

DC

Function

For phono jack connection from the temperature probe for Automatic Temperature compensation. The probe should be a 30K

Ω

thermister type.

For connection to sensor electrodes with BNC type connectors. The meter accepts any pH,

ORP or ISE with BNC connector. Always ensure that the connector is clean and dry.

For connection to pin type reference electrode normally used with half cell (mono) type pH electrodes or ISEs.

For connection to strip chart recorders. Use subminiature plug with positive tip.

For connection to the ground earth jack (standard tip connectors).

For connection for the AC/DC power adapter (optional accessory – see section on

Specifications for details)

4

CyberScan pH 510/Ion 510

2 STARTING UP

Connect the accessory connectors at the rear of the instrument panel. During operation, it is important that water does not get onto the BNC connector. Also avoid touching the connector with soiled or wet hands.

2.1 Connecting the Sensor Electrode

Slide the electrode connector of the electrode over the socket of the meter’s BNC connector marked ‘INPUT’.

The meter can accept any standard pH, ORP, or Ion Selective Electrode with a BNC connector. Align the slot of the electrode connector with the posts of the socket. Rotate the connector clockwise until it locks. For separate reference electrodes, push the electrode pin into jack marked ‘REF’.

2.2 Connecting the Temperature Probe

Insert the temperature probe (provided) into the connector marked ‘ATC’.

2.3 Connecting the A/C Adapter

Slide in the adapter jack of the A/C adapter into the back panel marked ‘DC’ until it is firmly seated. Ensure that the power is switched off before installation and correct voltage of adapter is used.

2.4 Connecting the Chart Recorder

You can connect chart recorders or external output devices for continuous printout. Plug in the input connector and ground pin of the chart recorder into the ports marked ‘REC’ and ‘GND’ respectively.

Sensor electrode

Temp. probe

Chart recorder

Separate ref. electrode Ground

AC/DC Adapter

2.5 Connecting the Electrode Holder (Optional)

The integral electrode holder serves as a handy holder for mounting a few pH/Ion electrodes or a temperature probe during measurement or when idle.

The CyberScan bench meter’s base plate has a side metal bar to which you can attach an integral swivel electrode holder. You can mount the electrode holder on either right or left side of the meter.

To position the electrode arm:

Use a Phillips screwdriver to remove the screw holding the electrode holder. Slide the side metal bar until the second screw slot lines up with the original screw hole. Use the screw removed earlier to secure the electrode holder into position. Note the side metal bar is reversible. If desired, remove screw holding electrode holder base and slide out of brackets, Slide base into brackets on opposite side and tighten screw.

5

Bottom of Meter

CyberScan pH 510/Ion 510

Electrode Arm

To install electrode arm to the meter:

To mount the electrode arm into the metal rod on the side bar, align the slot with the metal rod and base of electrode arm. Push it downwards until it fully sits into position. Avoid using excessive force when fixing or removing. The electrode arm is ready for use.

Side Metal Bar

2.6 Steps Prior to Calibration

2.6.1 Switching ‘ON’ and ‘OFF’ the meter

Press ON key to switch meter on. All the LCD segments will display momentarily for a few seconds and the

LCD then switches to the last measurement mode. To switch meter off, press OFF key.

The measurement modes available for the CyberScan pH 510 meter are pH, mV (for ORP) and Temperature, while the CyberScan Ion 510 meter has Ion, pH, mV and Temperature measurement modes. Select the correct mode of operation by pressing the MODE key, and each press takes you to next measurement mode. When selecting a particular parameter the respective mode annunciator displays at the right hand side of primary display; these include [pH] for pH, [ o

C] for Temperature, [ppm] for Ion Concentration and [mV] for Millivolt.

On first use, it is not necessary to reset meter before calibration as it has been factory-calibrated. However if you wish to reset the meter to factory default refer to this Section 5.4. Note re-calibration of meter is required before measurement after the meter is reset.

Likewise if you wish to prepare a new set of measurement, you may reset all the last calibrated pH values for added convenience. Caution: All calibration values and memory data will be erased upon activation. Re-

calibration is required.

2.6.4 Selecting pH Buffer Standard

The meter is capable of calibrating based on either USA or NIST pH buffer standards. Please refer to Section

5.3 P3.0 for details on how to change the USA buffer standard to the NIST standard on the meter itself. Refer to Section 8.4.1 for more details on pH buffer standards available.

NOTE: Remove protective rubber cap or storage bottle (if any) of the electrode before proceeding with measurement or calibration. Take care not to exert too much force as this may cause damage to the electrode.

Whenever the electrode is not in use, put it into storage bottle or rubber cap provided. Refer to the Section 6 on Probe Maintenance for more details.

6

CyberScan pH 510/Ion 510

3 CALIBRATION

The CyberScan 510 series bench meter is capable of multi-point calibration (up to 3 points) for unprecedented accuracy across the measurement range. The 3-point calibration offers flexibility of calibrating using either USA or NIST buffer standards with their 3 internationally accepted calibration points namely:

USA standard buffer options: pH 4.01, pH 7.00 and pH 10.01

NIST standard buffer options: pH 4.01, pH 6.86 and pH 9.18.

For ATC measurements, attach the temperature probe to the meter. The ATC mode annunciator shows on the display. Insert the probe into the solution to be measured so that the sample temperature can be recorded and pH readings automatically temperature compensated. If manual temperature compensation is preferred, do not plug a temperature probe into the meter.

DO NOT REUSE SOLUTIONS AFTER CALIBRATION. Contaminants in the solution can affect the calibration, and eventually the accuracy of the measurements. All new calibrations will override existing stored calibration data at these calibration points.

It is recommended that you perform at least a 2-point calibration using buffers that bracket (one above and one below) the expected sample range, starting with pH 7 buffer firstly. You can perform a 1-point calibration, but make sure that the buffer value is close to the sample value you are measuring. Select a pH 4, 7 or 10 buffer in sachets or bottles from Eutech standard buffer solutions.

momentarily. The LCD switches to pH measurement mode. If necessary press MODE key to select pH mode.

NOTE: The meter starts in the same measurement mode that it was switched off.

2. The customized LCD display will indicate the following:

Display

MEAS pH o

C

ATC

Remarks

Measurement mode is selected

Unit of measurement

Measured temperature reading

Automatic Temperature Compensation

3. Rinse both pH electrode and temperature probe well with deionized water or rinse solution. (Do not wipe the electrode as

this may cause a build-up of electrostatic charge on the glass surface!).

One Point Calibration

4. Select the first pH buffer, say pH 7.00 buffer and pour some into a clean container.

5. Dip both probes into the standard calibration buffer. The end of the probe must be completely immersed into the buffer. Stir the probes gently to create a homogenous solution.

annunciator [CAL] appears on top of the LCD to indicate the meter is in pH calibration mode. The upper display will show the measured reading while the lower display indicates appropriate pH standard buffer solution being used.

NOTE: The meter automatically recognizes the buffers in the buffer standard you have set in the SETUP mode, i.e. either USA

(pH 4.01, 7.00 or 10.01) or NIST (pH 4.01, 6.86 or 9.18) buffers.

NOTE: To exit from pH calibration mode without confirming calibration, DO NOT press ENTER key in step 9. Press the

CAL/MEAS key instead.

7

Figure 1: 1st-point calibration

CyberScan pH 510/Ion 510

Figure 2: Calibration error

Figure 3: 2nd-point calibration

Figure 4: 3rdpoint calibration

HINT: If the selected buffer value is not within the accepted window (see below) from the measured value: the electrode and buffer icon blink and ERR annunciator appears next to the secondary display.

(See Figure 2 above)

Press CAL/MEAS key to exit the ERR condition.

Window of Accepted

Values:-

USA 4.01

7.00

±±±±

1.00

±±±±

1.50

10.01

±±±±

1.00

−−−−−−−−−−−−−−−−−−−− −−−−−−−−−−−−−−−−−−−−

NIST 4.01

±±±±

1.00

6.86

9.18

±±±±

1.25

±±±±

1.00

7. Wait for the measured pH value to stabilize (when the [READY] indicator displays in the left-hand corner).

8. If the upper measured display is not within the buffer acceptable window (refer to Hint below) an error message and the electrode icon flash upon pressing the ENTER key. Refer to

Section 7 on Troubleshooting Guide. Check electrode condition and recalibrate. Press CAL/MEAS key to exit calibration and resume to the measurement mode.

value momentarily. The calibration point is successfully stored in the meter.

10. If you are performing a one-point calibration, press CAL/MEAS key to return to the measurement mode and start taking pH readings (see Figure 1).

Two to Third Point Calibration

11. If you are performing a multi-point calibration (i.e. second-point or more) go to step 12.

12. Rinse the probes with deionized water or rinse solution to avoid cross contamination, and place them in the next pH buffer, say pH 4.01 buffer. The meter automatically switches to the next pH buffer solution selected in the lower display

13. Wait for the measured pH value to stabilize (when the [READY] indicator displays in the left-hand corner). (see Figure 3).

14. Press the ENTER key. The upper display flashes the calibrated value. The calibration point is now stored in the meter.

15. If you are performing a two-point calibration, then press the

CAL/MEAS key to return to the measurement mode and start taking pH readings.

16. If you are performing a three-point calibration go to step 17.

17. Rinse the probes with deionized water or rinse solution, and place them in the next pH buffer, say pH 10.01 buffer. The meter automatically switches to the next pH buffer solution selected in the lower display.

18. Wait for the measured pH value to stabilize (when the [READY] indicator displays in the left-hand corner) (see Figure 4).

19. Press the ENTER key. The upper display flashes the calibration value. The calibration point is now stored in the meter. The meter automatically returns to the pH measurement mode after a three-point calibration is performed.

8

CyberScan pH 510/Ion 510

3.2 Ion Concentration Calibration (For Ion 510 only)

The CyberScan Ion 510 meter is capable of up to 3-point ion calibration (minimum 2 point) with choice of 4 options to ensure accuracy across the entire measurement range. Ion calibration options include 0.10, 1.0,

10.0 or 100.0 ppm. All calibration should be at least one decade apart from each other. For example you may perform 3 point calibration to 0.10, 1.0 and 10.0, or 2-point calibration to 10.0 and 100.0. If 1-point calibration is performed an error message “Er2” is displayed. If any of calibration points are not within 1 decade, an error message “Er4” will be displayed at the end of calibration process.

Calibration values are successfully stored if the ISE slope is within the specified tolerance of 15mV/decade

(minimum) and 90mV/decade (maximum), otherwise an error message “Er3” is displayed (see Figure 7). The calibration values are not stored into the meter’s built-in memory if any error message appears after each calibration process. Re-calibration is necessary as calibration is unsuccessfully attempted in this instance.

Check that your ISE and standard solutions are in good working conditions.

Ensure that you use new or fresh standard solutions during calibration. Do not reuse ion standard solution as it may be contaminated and affect the calibration and accuracy of measurements. Always store standard solutions in a dry, cool environment if possible. Before use, remove plastic protective cap of ISE. Briefly rinse the electrode with clean deionized water to remove any residues.

Rinse probes before and after each calibration or sample measurement to avoid cross-contamination. For more details please refer to Manufacturer’s care and maintenance guide. Note the Ion calibration values will

be lost once power is disconnected; only pH and mV calibration values will be retained.

1. Connect an Ion Selective Electrode (ISE) to the BNC input connector on the back of the meter. Turn the meter ON.

there is no old calibration values, then the meter displays “---“ in the upper display in measurement mode.

3. Dip the ISE into the first calibration standard. Make sure to start with the calibration standard that has the lowest concentration and move up to the standards that have higher concentrations.

Swirl it gently. Press CAL key to enter the ion calibration mode. The

[CAL] indicator appears above the upper display and the upper display reads “0.10”. The lower display shows the corresponding absolute mV value of sample measured.

4. The first calibration point of 0.10 ppm appears on the display. If you

DO NOT wish to calibrate to this point, press ▲ (up arrow) to skip and continue to the next calibration point of 1.0 ppm or 10.0 ppm.

stabilize. When the reading stabilizes the [READY] indicator will appear on the display. Stabilization may take a few minutes depending on electrode and standard concentration.

After calibration, the display will show the next calibration option, i.e.

1.0 ppm. Proceed by rinsing the electrode with deionized water before placing it in the next calibration standard i.e. 1.0 ppm.

7. Allow the meter to stabilize in the next calibration standard. Wait for the [READY] indicator to appear before you press the ENTER key to confirm the second calibration point. The upper display flashes momentarily then moves to the next calibration point of 10.0 ppm.

NOTE: If you are performing a 2-point ion calibration, press

CAL/MEAS key. “SLO” appears in the upper display with the [mV] indicator and the number in the lower display is the electrode slope in mV (see Figure 6). You are ready to take ion measurements. If the slope is outside the acceptable limits or if incorrect standards have been used the upper display will show “Er3”.

Figure 5: 1st-point calibration

9

CyberScan pH 510/Ion 510

If you are performing a 3-point calibration, rinse off the electrode with deionized water and place it in the next calibration standard and proceed as described earlier.

8. Allow meter to stabilize in the next calibration standard. Wait for the

[READY] indicator to appear before you press the ENTER key to confirm the third calibration point. The upper display flashes for a few seconds then “SLO” appears in the upper display with the mV indicator, the number in the lower display is the average electrode slope in mV (see Figure 6). After a few seconds the meter reverts to the measurement mode. You are now ready to take ion measurement.

NOTE: All the calibration values are successfully stored. Otherwise error message will appear in the LCD if the calibration was unsuccessful with no values stored into memory.

NOTE: You may compare the average electrode slope value with the expected slope value for your electrode from your electrode manual to verify electrode operation.

HINT: Minimum of 2 points and maximum of 3 points are allowed for Ion

Calibration. All calibration points should be at least one decade apart, i.e.

valid calibration points are 0.1, 1, 10 ppm or 1, 10, 100 ppm or 0.1, 1 ppm or 1, 10 ppm or 10, 100 ppm.

Figure 6: Slope value in mV

1.

Make sure the meter is on and if necessary, press the MODE key to select mV mode. The [mV] indicator appears in the upper right-hand corner of the display.

2.

Press the CAL/MEAS key. The [CAL] indicator appears above the upper display that displays the relative mV reading. The lower display shows the absolute mV value.

NOTE: If you have never calibrated relative mV or if the meter has been reset, the value shown in the upper display is the same as the absolute mV value. The range of adjustment is -1999 mV to 1999 mV (resolution is 1 mV); of which from -199.9 to 199.9 mV the meter gives you a resolution of 0.1 mV.

3.

Press ▲ desired reading.

4.

Press the ENTER key to confirm the reading and the meter automatically returns to the measurement mode. The upper display now shows the relative mV reading. The [R.mV] indicator appears in the upper right hand corner.

NOTE: New mV calibrations will override existing stored mV calibration data. The meter retains stored mV calibrations even when the meter is turned off.

10

Figure 7: Error message Er3 if slope not within range

CyberScan pH 510/Ion 510

In this calibration procedure, the ATC probe is attached to the meter and the [ATC] annunciator is displayed on the right hand side of the LCD.

1. Dip the temperature probe into a solution of known temperature, such as a temperature bath for a few minutes until the temperature probe stabilizes.

2. To perform temperature calibration, you must be in the pH measurement mode.

in the mV or ion measurement modes.

corresponding to the known solution temperature. The meter allows a limit of

±

5 o

C variation (with 0.1 o

C resolution) of the input reading, and of the original displayed reading.

7. Once you selected the correct temperature, press ENTER key to confirm. The meter automatically returns to the pH measurement mode.

11

CyberScan pH 510/Ion 510

4 MEASUREMENT

4.1 Automatic Temperature Compensation (ATC)

For ATC measurements, simply attach the temperature probe into the meter (see Section 2.2). The [ATC] annunciator lights up on the LCD.

NOTE: If you are using a temperature probe, the probe must be submersed in the liquid you are measuring so that the sample temperature can be recorded and compensated for.

4.2 Manual Temperature Compensation (MTC)

Important: For MTC, you must disconnect the temperature probe.

1. Switch the meter on. Press the MODE key to select pH mode.

annunicator appears above the upper display.

3. While in pH calibration mode, press the MODE key to enter temperature compensation mode. The upper display shows the current temperature setting and the lower display shows the default value 25.0 ºC (if the meter has never been manually set for temperature) or the last manually set value if the meter has previously set for MTC. If you have not set the current temperature setting the upper display will also show the default value of 25.0 ºC.

4. Check the temperature of your sample using an accurate thermometer.

from step 4.

the pH measurement mode.

7. To exit this program without confirming the MTC value, DO NOT press ENTER key in step 6. Press CAL/MEAS key instead.

NOTE: The meter will compensate pH reading for the manually set temperature.

Be sure to remove the electrode soaker bottle or protective rubber cap on the electrode before measurement.

To take readings:

1. Rinse the electrode with distilled or tap water before use to remove any impurities adhering to the electrode body. If the pH electrode had dehydrated, soak it for 30 minutes in EC-RE005 electrode storage solution. (See Electrode Care - Section 6) annunciator appears in the lower right hand corner to indicate ATC if a temperature probe is plugged.

(For MTC, refer to Section 4.2).

3. Dip the electrode and temperature probe into the sample, making sure that the glass bulb of the electrode must be completely immersed into the sample. Stir the probes gently to create a homogeneous sample.

4. Allow time for reading to stabilize. When the readings stabilize, a [READY] annunciator displays. The

READY mode shows the readings are stable within a range of ±0.01 pH. When this occurs, the [READY] annuciator appears on the top left side of LCD. Take the reading.

5. To toggle between pH and mV in the pH510, or to toggle between pH, mV and Ion in the Ion 510, press the MODE key.

12

CyberScan pH 510/Ion 510

This feature lets you freeze the value of the measured reading. HOLD can be used anytime when in [MEAS] mode. You can store the held reading into memory by pressing MI key.

HOLDing a measurement

To hold a measurement, press the HOLD key while in measurement mode. [HOLD] annunciator will appear on the display.

Releasing a Held Value

To release the held value, press HOLD key again. [HOLD] annunciator will disappear from the LCD. Continue to take measurements.

4.5 Storing and Recalling Data from Memory

The meters allow up to 50 data sets to be stored and recalled into its non-volatile memory in the Last-In-First-

Out (LIFO) sequence. The data set is also stored with specified location as indicated on the display. However you can selectively view the data at that specified location for added convenience.

pH 510 meter:

• pH and Temperature

• mV (or Relative mV) and temperature

Ion 510 meter:

• pH and Temperature

• mV (or Relative mV) and temperature

•

ion mV

For example you can store 32 pH and 18 mV values for the CyberScan pH 510 or 15 ion, 12 mV and 23 pH values for the CyberScan Ion 510.

Memory Input

This feature allows you to store measurement readings into memory for later review. This mode can be invoked at any time during measurement mode or when the reading is frozen ([HOLD] annunciator is displayed on

LCD by the activation of HOLD key).

To store reading:

1. During any measurement or HOLD function, press the MI key once to input data into the memory.

2. [MEM] annunciator, “StO” and memory number will flash momentarily. The meter then returns to the measurement mode.

3.

To continue storing data, press MI key again.

NOTE: If the memory is full, the first value stored will be erased to create space for the new value.

13

CyberScan pH 510/Ion 510

Memory Recall

1. In the measurement mode, press MR key once to retrieve the last reading stored. The memory location screen – “MEM”, “LOC” and the memory number – will flash on the display.

number.

3. If necessary, you can selectively choose to view any data that is stored by using ▲ or ▼ key. For example to view the third data location set to LOC 3 from last stored location of LOC 5. Use ▲ or ▼ key to set to LOC 3. Press ENTER key to retrieve the data from this location.

4. To continue reviewing additional stored data, press ENTER key again. For this instance the next location LOC 2 will be displayed.

5. To exit Memory Recall and operate meter, press the MEAS key to return to the measurement mode.

NOTE: Readings stored in memory are retained even of the unit is turned off. To erase all readings stored in memory, see Program P1.0.

14

CyberScan pH 510/Ion 510

5 SETUP FUNCTIONS

The advanced SETUP mode lets you customize your meter’s preferences and defaults:

P1.0: Memory Clear (Clr)

P2.0: Viewing electrode data (ELE)

P3.0: Selecting buffer sets (bUF)

P4.0: Reset to factory default settings (rSt)

To enter the SETUP mode:

2. With meter off, press and hold the MODE key and press and release the ON key. The display will show the [SETUP] indicator. If the display indicates you are in the measurement mode turn the meter off and try step 2 again until [SETUP] appears.

NOTE: To exit the SETUP mode at anytime without confirming changes press CAL/MEAS until the measurement mode appears. You may have to press CAL/MEAS key two times before the meter reverts to the measurement mode.

5.1 P1.0 Clear Memory

Use this program to clear all memory values when you need to store a new series of values. This lets you avoid confusing the old values with the new ones. NO is the default setting.

1. Enter the SETUP mode as described above. The meter automatically goes to program P1.0 Clr appears in the upper display and P1.0 in the lower display.

shows either (depending on last option selected or factory default i.e. nO).

mode. To continue to the next SETUP, press ▲ or ▼ key to select a new program. Otherwise press the CAL/MEAS key to return to the measurement mode.

15

CyberScan pH 510/Ion 510

5.2 P2.0 Viewing Electrode Diagnosis

This program lets you check the electrode parameters for diagnostic purposes. Depending on the last display mode, displayed electrode information varies. These readings can only be viewed.

Last Display Mode

pH

Ion mV in mV

Electrode Property

Offset

in mV

-

Slope

% in mV

-

1. Enter the SETUP mode as described above. The meter automatically goes to program 1.0.

ELE in the upper display and P2.0 in the lower display. The electrode annunciator also appears.

will read P2.1.

The information you will see in Program P2.0 will depend upon which

MODE the meter was in prior to shutting the meter off:

In the pH measurement MODE:

P2.1 shows the mV offset of the electrode. Press ENTER key to go to P2.2 (see Figure 8).

P2.2 shows the slope in % of the electrode.

In the mV measurement MODE:

P2.1 shows the mV offset of the electrode (see Figure 9).

In the Ion measurement MODE:

P2.1 shows the average slope of the electrode (see Figure 10).

4. To exit P2.0 program press ENTER key until ELE is in the upper display and P2.0 is in the lower display. Press ▲ or ▼ key to select a new program OR press CAL/MEAS key to return to the measurement mode.

Figure 8: slope in %

Figure 9: mV offset

Figure 10: Average slope (mV)

16

CyberScan pH 510/Ion 510

5.3 P3.0 Selecting pH Buffer Standard

This program lets you select between two standard calibration buffer sets, depending upon your requirements.

The available standards are USA and NIST.

1. Enter the SETUP mode as described in this section earlier. The meter automatically goes to program P1.0.

“bUF” in the upper display and P3.0 in the lower display. The buffer annunciator also appears.

read either ”USA” or “nSt” (depending on the previous setting you have made; factory default is USA.)

•

USA buffers: 4.01, 7.00 and 10.01

• nSt buffers: 4.01, 6.86 and 9.18

5. To confirm the buffer standard, press ENTER. All the characters on the display will flash momentarily and then returns to P3.0.

6. To exit P3.0 program press ▲ or ▼ key to select a new program OR press the CAL/MEAS to return to the measurement mode.

5.4 P4.0 Meter Reset

This program resets and clears all memory data and calibration data except temperature calibrated value which will be retained. NO is the default setting.

1. Enter the SETUP mode as described in this section earlier on. The meter automatically goes to program P1.0.

in the upper display and P4.0 in the lower display. The mV and pH annunciators also appears.

display will read NO.

calibration values for all modes (pH, mV and ion) and all memory values.

5. To confirm the reset, make sure YES is selected and press ENTER.

All the characters on the display will flash for a second then the meter returns to the measurement mode.

NOTE: Once YES is selected and ENTER key is pressed, the reset program clears all old calibration data and memory data. The data is no longer retrievable. You must calibrate the meter before taking any new measurements. Meter will however retain buffer set selection (NIST or

USA).

17

CyberScan pH 510/Ion 510

6 pH Electrode Maintenance

pH electrodes are susceptible to dirt and contamination and need to be cleaned regularly depending on the extent and condition of use. Refer to Section 6.3 for more details on cleaning pH electrode.

6.1 Storage

For best result, always keep the pH electrode bulb wet, preferably with use of Eutech’s Storage Solution (EC-

RE005). Other storage media like pH 7 buffer, storage solution or tap water are also acceptable. Avoid storing in deionized water as this causes the electrode’s response to become sluggish. The protective rubber cap or container filled with the buffer solution provides ideal storage for long periods.

After measurement is complete, follow the sequence below for storage.

a) Wash the electrode and reference junction in de-ionized water b) Close the refilling hole by returning its rubber sleeve or stopper cap into position (Necessary for only refillable electrodes).

c) Store the electrode as mentioned above (see Storage).

6.2.1 Electrolyte Replacement (for refillable electrodes only)

The reference electrolyte needs to be refilled when the pH electrode has been used for an extended period, or when the internal electrolyte has dried up. To accomplish this, follow the procedure:

1. Remove the protective rubber cap or sleeve to expose the filling port of the electrode. Remove the old reference electrolyte by flushing out with a syringe and a flexible tube.

2. Add in fresh electrolyte until it reaches the level of the refilling port. The reference electrolyte used should be 4M KCl (EC-RE001). Replace the rubber sleeve.

Sleeve

Rubber

Stopper

3. Rinse the liquid junction with de-ionized water and tap dry.

NOTE: If these steps fail to restore normal electrode response, you may attempt to rejuvenate it. (See:

Electrode Rejuvenation).

pH electrodes that are mechanically intact and not in use for a short period of time can be restored to normal performance by one or combination of following procedures:

a) Salt deposits

Dissolve the salt deposits by immersing the electrode in a container filled with some tap water for ten to fifteen minutes. Then thoroughly rinse with de-ionized water.

18

CyberScan pH 510/Ion 510

b) Oil / Grease Films

Wash the pH electrode bulb in mild detergent and water. Rinse electrode tip with de-ionized water.

c) Clogged Reference Junction

KCl

60 - 80 o

C

Heat for 10 minutes

Heat a dilute KCl solution to 60-80 o

C. Place the sensing portion of the pH electrode into heated KCl solution for approximately 10 minutes (as shown above). Care must be taken when performing this procedure. Allow electrode to cool while immersing in some unheated KCl solution.

d) Protein Deposits

Use Eutech’s Protein Cleaning Solution EC-DPC-BT to remove any protein that is deposited onto pH electrode.

Allow the electrode to stand in this solution for five to ten minutes.

6.4 pH Electrode Rejuvenation

CAUTION: Proper protective eyewear and precautionary measures must be used when performing the rejuvenation procedure as it involves the use of concentrated acid and alkaline.

Generally, if procedure of storage and maintenance had been closely followed, the pH electrode can be used immediately. However, should the electrode response become sluggish, it may be possible that the glass bulb has dehydrated. Immersing the electrode in an ideal storage solution (e.g. buffer pH 4 solution) for 1- 2 hours can dehydrate the glass bulb. If this fails, the electrode may require re-activation. At no time should you touch or rub the glass bulb as this causes the build-up of electrostatic charge. If the above procedure does not reactivate electrode to acceptable status, try rejuvenating electrode by following the procedure outlined below.

1. Dip and stir the electrode in freon or alcohol for 5 minutes.

2. Leave the electrode in tap water for 15 minutes.

3. Dip and stir the electrode in concentrated acid (e.g. HCl, H

2

SO

4

) for 5 minutes.

4. Repeat Step 2.

5. Dip and stir in strong base (NaOH) for 5 min. Leave for 15 minutes in tap water.

6. Test with standard calibration buffer solutions.

Finally, test with standard calibration buffer solutions to see if the electrode yields acceptable results. You may repeat steps ‘c’ to ‘f’ again for better response (maximum 3 times). If the response does not improve, then the electrode has completed its useful life. Replace with a new electrode.

19

CyberScan pH 510/Ion 510

7 TROUBLESHOOTING GUIDE

The table provides a quick guideline for diagnosis of possible problems indicated by the messages generated by the CyberScan 510 meter series. The table also provides possible solutions to problems encountered.

ERROR MESSAGE

Err. 2 (in upper display) during Ion calibration

Err. 3 (in upper display) during Ion calibration

INDICATES

Too few calibration points

Slope error

CAUSE

Meter calibrated with only 1point in ion calibration

Ion calibration solution not within acceptable range

(15mV to 90mV/decade)

Calibration points more than 1 decade apart

CORRECTIVE ACTION

Recalibrate using 2 or more points

Recalibrate using fresh ion solutions

Replace electrode.

Recalibrate using calibration points 1 decade apart.

Err. 4 (in upper display) during Ion calibration

Err (annunciator)

Calibration points more than 1 decade apart

Wrong keypad input

Electrode icon (indicator) Calibration error

Ur or Or (in upper display)

Button does not work in the current operation mode

Buffer value does not match value displayed or electrode is disconnected or failing

Electrode not connected

Electrode clogged, dirty or broken

Measurement is under range or over range

Release key. Select valid buttons depending on mode.

Use fresh buffer solution or check electrode connection.

Possibly replace electrodes.

Make sure electrode is connected

Clean or replace electrode

Treat samples to bring within meter measuring range

7.2 Troubleshooting

PROBLEM

No display

Unstable reading

Slow response

Meter not responding to key press

PROBABLE CAUSE

a) Mains power not switched on.

b) AC Adapter socket not inserted properly.

a) Insufficient reference electrolyte in electrode.

b) Broken electrode c) External ‘noises’ or induction ( e.g.

electrical ‘noise’ caused by a nearby motor) d) Dirty electrode.

a) Dirty electrode.

a) HOLD mode in operation.

b) Internal program error.

REMEDIAL ACTION

a) Switch on the power supply.

b) Re-insert AC Adapter socket.

a) Fill electrode with reference electrolyte.

b) Replace electrode.

c) Remove or switch off interfering device.

d) Clean the electrode. Rejuvenate if necessary.

a) Clean electrode. Rejuvenate if necessary.

a) Cancel HOLD mode. Press Hold button.

b) Reset all internal programs by removing A/C adapter.

20

CyberScan pH 510/Ion 510

8 ADDITIONAL INFORMATION

8.1 pH and Temperature

Automatic Temperature Compensation (ATC) compensates for temperature changes. Some solutions show an increase while others a decrease in pH with the same temperature change. Record the solution temperature along with the pH value, or the measurement may be meaningless. Temperature changes also affect the signal the pH electrode sends to the meter and causes a loss of accuracy for the reading. To limit the loss of accuracy during calibration, make the temperature of the pH buffer calibrating solutions and the sample solution the same.

8.2 Use of Standard pH Buffers

Use standard buffer solutions to calibrate a pH meter before you measure the pH of a sample. They serve as reference standards for basis of comparison between measurement. The most common USA standard buffers are the pH 4.01, pH 7.00 and pH 10.01 and the NIST standard buffers are pH 4.01, pH 6.86 and pH 9.18. For

1-point calibration, use a standard buffer of pH 7.00 or a standard buffer whose pH value is close to that of the sample. Use 2-point calibration when you know the sample is acidic (low pH) or basic (high pH). For acidic samples, use standard buffers of pH 7.00 and pH 4.01. For basic samples, use standards of pH 7.00 and pH

10.01. Use a 3-point calibration when the sample pH is completely unknown. Use all pH 7.00, pH 4.01 and pH

10.01 calibration solutions.

8.3 Standard pH Buffers

The following table shows the various pH values at different temperature of the solution during calibration. The table also illustrates why a calibration value may be different from the buffer value at 25 o

C.

Temperature ( o

C)

0

5

10

15

20

25

50

55

60

70

30

35

40

45

80

90

pH 4.01 (phthalate)

4.01

4.01

4.00

4.00

4.00

4.01

4.01

4.02

4.03

4.04

4.06

4.07

4.09

4.12

4.16

4.20

pH 7.00 (neutral phosphate)

7.12

7.09

7.06

7.04

7.02

7.00

6.99

6.98

6.97

6.97

6.97

6.98

6.98

6.99

7.00

7.02

pH 10.01 (carbonate)

10.33

10.25

10.18

10.11

10.05

10.01

9.95

9.92

9.88

9.85

9.82

9.80

9.77

9.73

9.69

9.66

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CyberScan pH 510/Ion 510

8.4.1 pH Buffers/Sachets, Reference Electrolyte & Others

To order some accessories, send the part name and number to our authorized distributor.

Order Code

EC-BU-1BT

EC-BU-4BT

EC-BU-7BT

EC-BU-9BT

EC-BU-10BT

EC-BU-4BS

EC-BU-7BS

EC-BU-10BS

EC-RE001

EC-RE005

EC-DPC-BT

Description

pH 1.68 Buffer Solution (480 ml bottle) pH 4.01 Buffer Solution (480 ml bottle) pH 7.00 Buffer Solution (480 ml bottle) pH 9.18 Buffer Solution (480 ml bottle) pH 10.01 Buffer Solution (480 ml bottle) pH 4.01 Buffer Sachets (20 ml x 20 pcs. per box) pH 7.00 Buffer Sachets (20 ml x 20 pcs. per box) pH 10.01 Buffer Sachets (20 ml x 20 pcs. per box)

Reference Electrolyte (KCl with Ag/AgCl) (480 ml bottle)

Storage Solution for pH Electrode (480 ml bottle)

Protein Cleaning Solution (480 ml bottle)

8.4.2 Ion Selective Electrodes (ISE)

Ask our distributors for more details regarding ISE and its standard solutions. The table below lists the range of electrodes available. All ISE are supplied with 1m cable length and BNC connector.

Ion

Ammonia (NH

3

)

Ammonium (NH

4

+

)

Bromide (Br

-

)

Cadmium (Cd

+2

)

Calcium (Ca

+2

)

Carbon Dioxide (CO

2

)

Chloride (Cl

-

)

Copper (Cu

+2

)

Cyanide (CN-)

Fluoride (F-)

Fluoroborate (BF

4

-

)

Ion

Iodide (I-)

Lead (Pb

+2

)

Lithium (Li

+

)

Nitrate (NO

3

-

)

Nitrogen Oxide (NO x

)

Perchlorate (CIO

4

-

)

Potassium (K

+

)

Silver / Sulfide (Ag

+

/ S

-2

)

Sodium (Na

+

)

Surfactant (X

+

, X

-

)

Water Hardness

22

CyberScan pH 510/Ion 510

8.4.3 pH & ORP Electrodes

There is a wide range of electrodes for the user’s applications. Note that although only one electrode for each application is shown, there are multiple electrodes available and they are multi-application adaptable. All electrodes are supplied with 1m cable length and BNC connector.

a) Glass-body electrode

Applications

General purpose, aqueous pH measurements (laboratory, quality control)

Tris buffers, clinical and biological media containing proteins, creams and fats

Research measurements, fruit juices, beer, milk and yogurt

High viscosity measurements such as emulsions, paints and varnishes

Non aqueous solutions

Low temperature measurements

Low ionic strength solutions

Surface measurements such as paper, skin, textile, leather and agar plates

Solid or semi-solid samples such as cheese, meats, fruits, etc.

Measurements in long narrow vessels

Soil pH measurements

Isoelectric focusing gels and other surface measurements (small diameter flat tip)

Photographic chemicals, high pH samples (12 to 14 pH)

ORP measurement for general purpose

Electrode

EC-FG73504

EC-FG73905

EC-FG73905

EC-FG63506

EC-FG73701

EC-FG73504

EC-FG73905

EC-FG72520

EC-FG63511

EC-FG63506

EC-FG73521

EC-FG52910

EC-FG74519

EC-FG79601

b) Epoxy-body electrode

Applications

General purpose, aqueous pH measurements

Tris buffers, clinical and biological media containing proteins, creams and fats

Surface measurements such as paper, skin, textile, leather and agar plates

ORP measurement for general purpose

Hydrofluoric acid and abrasive solution measurements

Electrode

EC-FE72521

EC-FE73928

EC-FE72511

EC-FE79602

EC-FE77689

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CyberScan pH 510/Ion 510

8.5 Specifications

Model: CyberScan 510 Series

pH Range

Resolution

Accuracy

Ion Concentration Range

Resolution

Accuracy mV Range

Resolution

Accuracy

Temperature Range

Resolution

Accuracy

Temperature Compensation

No. of pH Calibration Points pH Buffer Calibration Options

No. of Ion Calibration Points

Ion Calibration Options

0.00 to 14.00 pH

0.01 pH

±

0.01 pH

0.01 to 1999 ppm

0.01 pm (0.01 to 0.99 ppm); 0.1 ppm (1.0 to

199.9 ppm); 1 ppm (200 to 1999 ppm)

±

1 % Full Scale

±

1999 mV

0.1 mV (

±

199.9 mV), 1 mV beyond

±

200 mV

±

0.2 mV (

±

199.9 mV),

±

2 mV beyond

±

200 mV

0.0 to 100.0 o

C

0.1 o

C

±

0.3 o

C

Automatic / Manual (0 to 100 o

C)

Up to 3 points with Auto-buffer recognition

USA : pH 4.01, 7.01, 10.01;

NIST: pH 4.01, 6.86, 9.18

Up to 3 points (minimum 2 points)

0.1, 1.0, 10.0 or 100.0 ppm

15 mV/decade to 90 mV/decade

Min. & Max. Slope during

Calibration

Temperature Calibration

Memory

Hold Function

Self-diagnostic Messages pH Slope and Offset Display

Inputs

Output

Power Requirements

Display

Meter Dimensions

(L x W x H)

Weight

Offset in 0.1 o

C increments; Offset range:

±

5 o

C

50 data sets

Yes

Yes

Yes

BNC, Phono, Ref. (Half-cell), Ground

Recorder (+/- 2000 mV)

AC/DC 9V Adapter (110 VAC/220 VAC, 50-60Hz)

Custom Dual LCD (1 x 4 digits, 1 x 3.5 digits, annunicators)

230 x 180 x 63 mm (meter only);

395 x 260 x 90 mm (boxed)

700 gm (unit); 1550 gm (boxed)

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

pH 510

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

Ion 510

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

8.6 Warranty

Eutech Instruments warrant its products to be free from defects in material or workmanship. Please refer to warranty card for further details. If any repair or adjustment is necessary and has not been the result of abuse or misuse within the stipulated period, please return by freight pre-paid and correction will be made without charge. Out of warranty products will be repaired on a charge basis.

8.6.1 Return of Items

Authorization must be obtained from your dealer or distributor before returning for any reason. When applying for authorization, please include data regarding the reason for the item to be returned. Please consult your nearest dealer or distributor for repackaging information. Eutech Instruments will not be liable to any damages due to mishandling and poor packaging.

24

CyberScan pH 510/Ion 510

NOTE

EUTECH INSTRUMENTS PTE LTD.

Blk 55, Ayer Rajah Crescent, #04-14/24 Singapore 139949

Tel: (65) 778 6876 Fax: (65) 773 0836

E-mail: [email protected]

Web-site: http://www.eutechinst.com

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