EUTECH INSTRUMENTS CYBERSCAN PC 510 PHCONDUCTIVITY METER Manuale utente

Instruction Manual

PC 510

Bench pH/Conductivity Meter

Technolo

ade

68X090816

Rev. 3 12/03

Preface

Thank you for choosing the PC 510 pH and Conductivity bench meter series.

This manual serves to explain the use of the PC 510 bench meter. The manual functions as a step-by-

step operational guide to help you familiarise with the meter’s features and as a handy reference

guide.

This instruction manual is written to cover as many anticipated applications and uses of the PC 510

bench meter as possible. If there are doubts in the use of the meter, please do not hesitate to contact

the nearest Authorised Distributors.

Eutech Instruments/ Oakton Instruments cannot accept any responsibility for damage or malfunction

to the meter caused by improper use of the instrument.

The information presented in this manual is subject to change without notice as improvements are

made, and does not represent a commitment on the part of Eutech Instruments Pte Ltd/ Oakton

Instruments.

Note: Eutech Instruments Pte Ltd/ Oakton Instruments reserves the right to make

improvements in design, construction, and appearance of our products without notice.

Eutech Instruments Pte Ltd

Oakton Instruments

Rev. 3 12/03

TABLE OF CONTENTS

1INTRODUCTION 1

2METER INFORMATION 1

2.1 Meter parts 1

2.2 Customised LCD 1

2.3 Slide-out card 1

2.4 Rear instrument panel 1

2.5 AC/DC adapter 2

2.6 Electrodes 2

2.7 Electrode holder 2

3KEYPAD FUNCTIONS 2

3.1 Keypad 2

3.2 Display 4

4PREPARATION 5

4.1 Connecting the Sensor Electrode 5

4.1.1 To connect the pH electrode: 5

4.1.2 To connect the conductivity/temperature probe: 5

4.2 Connecting the A.C. Adapter 5

5CALIBRATION 6

5.1 Important information on meter calibration 6

5.2 Preparing the meter for calibration 6

5.3 pH calibration 7

5.3.1 Preparing for pH calibration 7

5.3.2 Before starting 7

5.3.3 To calibrate pH 7

5.4 Conductivity/TDS calibration 9

5.4.1 Preparing for conductivity/TDS calibration 9

5.5 TDS Calibration 11

5.5.1 Calibrating for TDS directly 11

5.6 Calibration with Conductivity Standard and TDS factor 11

5.6 Calibration with Conductivity Standard and TDS factor 12

5.7 Temperature Calibration 13

6MEASUREMENT 14

6.1 Taking pH Measurements 14

6.1.1 Automatic Temperature Compensation 14

6.1.2 Manual Temperature Compensation (pH) 14

6.1.3 Taking pH Measurements 15

6.2 Taking Conductivity or TDS Measurement 15

6.2.1 Automatic Temperature Compensation 15

6.2.2 Manual Temperature Compensation 16

6.2.3 Setting a manual temperature compensation value 17

6.2.4 Taking Measurements (Conductivity or TDS) 17

6.2.5 Using Auto and Manual Ranging Function (for conductivity & TDS) 18

7HOLD FUNCTION 20

8ADVANCED SETUP FUNCTIONS 20

8.1 Advanced SETUP mode Overview 22

8.2 P1.0: Viewing previous pH calibration data 25

8.3 P2.0: Viewing pH electrode data 26

8.4 P3.0: pH Measurement configuration 27

8.4.1 P3.1: READY Indicator and auto endpoint function 28

8.4.2 P3.2: Selecting number of pH calibration points 29

8.4.3 P3.3 Selecting USA or NIST buffer 29

8.4.4 P3.4 Selecting °C or °F 30

8.5 P4.0: Resetting to factory default settings (pH) 31

8.6 P5.0: Viewing previous conductivity calibration data 32

8.7 P6.0: Viewing conductivity probe data 33

8.8 P7.0: Conductivity or TDS measurement configuration 34

8.8.1 P7.1: READY indicator and auto endpoint function 34

8.8.2 P7.2: Selecting °C or °F 35

8.8.3 P7.3: Selecting Automatic or Manual Temperature Compensation 35

8.8.4 P7.4: Setting the TDS factor 36

8.9 P8.0: Temperature 37

8.9.1 P8.1: Selecting the temperature coefficient 37

8.9.2 P8.2: Adjusting the normalisation temperature 38

8.9.3 P9.0: Resetting to factory default settings (conductivity) 38

9PROBE CARE AND MAINTENANCE 39

9.1 pH Electrode care 39

9.2 Conductivity electrode 40

10 TROUBLE SHOOTING GUIDE 41

11 ERROR MESSAGES 42

12 SPECIFICATIONS 43

13 ACCESSORIES 44

14 ADDENDUM 2: CALCULATING TDS CONVERSION FACTORS 48

15 ADDENDUM 3: STANDARD pH BUFFERS 48

16 ADDENDUM 4: CALCULATING TEMPERATURE COEFFICIENTS 49

17 ADDENDUM 5: METER FACTORY DEFAULT SETTINGS 50

18 WARRANTY 51

19 RETURN OF ITEMS 51

Instruction Manual PC 510

1 INTRODUCTION

Thank you for selecting the PC 510 pH and Conductivity bench meter. This step-by-step instruction

manual gives you a detailed description on the use and operation of features on the meter. This PC

510 pH and Conductivity bench meter is designed to be user-friendly while providing unprecedented

levels of accuracy, repeatability and reliability.

The PC 510 is an advanced microprocessor-based (ASIC - Application Specific Integrated Circuit)

ideal for routine measurement that best meets discerning user’s individual needs. This multi-parameter

meter reads pH, mV, Conductivity, Total Dissolved Solids (TDS) and temperature (°C or °F). It has

splash-proof keypad, simultaneous pH/mV/Conductivity/TDS and temperature display on a large

angled custom LCD. This instruction manual is illustrated with useful hints and diagrams that show

which specific key-presses to access for each function.

2 METER INFORMATION

The PC 510 meter is packaged in a corrugated box that is made of environment-friendly materials and

can be re-cycled.

2.1 Meter parts

The instrument is designed to give an aesthetic look as well as ergonomic functionality. A large

custom dual LCD is provided at an angle for optimum viewing. A splash-proof keypad with audible

tactile response gives you a good feel of the instrument. A slide-out instruction card offers a handy

reference. Listed below are the major components of the meter.

2.2 Customised LCD

The PC 510 bench meter is characterised by large dual custom LCD (Liquid Crystal Display). The

display has also mode annunciators for pH, temperature, mV, conductivity and TDS readings. The

secondary (lower) display shows the temperature readings simultaneously with the primary (upper)

display of measured mode. Special annunciators such as graphical symbols, error messages,

measurement units and modes of operation are arranged around the primary and secondary displays

to give a comprehensive display. The integration of graphics and error messages into the LCD

provides you a higher level of user-friendliness and easy readability.

2.3 Slide-out card

A plastic slide-out card is provided at the bottom of the PC 510 bench meter. The function of this card

is to provide a quick guide to the functions of the individual keys as well as to provide a useful

troubleshooting reference.

2.4 Rear instrument panel

The PC 510 bench meter provides three connectors at the rear of the meters. These connectors are

labeled CON/TEMP, pH and DC.

CON/TEMP pH DC

Figure 1 : View of meter rear panel

Instruction Manual PC 510

Connector Function

CON/TEMP For connecting 6-pins conductivity/TDS sensor with built-in temperature sensor to the

meter or optional temperature probe for use with pH electrode (when applicable).

Always make sure that the connector is clean and dry.

pH For connecting pH sensor with a BNC connector to the meter. Always make sure that

the connector is clean and dry.

DC For connection to the AC power source to the power jack (DC).

2.5 AC/DC adapter

The AC/DC adapter converts the power mains voltage 120/220 VAC to low DC voltage for the PC 510

bench meter operation. Two basic models of adapters are available depending upon power supply

specification of each country.

Description Order Code Voltage

AC Adapter 120 V EC-120-ADA / 35615-07 110-120 V, 50-60 Hz

AC Adapter 220 V EC-220-ADA / 35615-08 220-240 V, 50-60 Hz

2.6 Electrodes

Your meter includes two probes:

•pH electrode with BNC connector

•conductivity probe with built-in temperature sensor with a notched 6-pin connector

The temperature sensor built into the conductivity probe will also compensate for pH readings as long

as both probes are in your solution at the same time.

If you want to use a “3-in-1” pH probe with a built-in temperature sensor, or if you want to use a

separate temperature probe, you will need to disconnect the conductivity probe to allow for connection

of the separate temperature sensor.

2.7 Electrode holder

The integral electrode holder serves as a handy holder for mounting

the pH and conductivity/temperature probes during measurement or

when idle.

The 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:

holder.

3 KEYPAD FUNCTIONS

3.1 Keypad

The PC 510 is equipped with large tactile response keypad for

ease of use. All keys have primary function with some keys having

secondary functions.

Use a Philips 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 screws. See Figure 2.

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.

NOTE: Move the base of electrode holder if you wish to swing the

electrode holder about. To prevent the meter form toppling over

causing accidental spills, DO NOT swing the body of the

electrode holder.

Figure 2: To position electrode arm

Figure 3: Installing the

electrode arm

Base of

Electrode

Holder

Body of Electrode

Holder

Side Metal Bar

Instruction Manual PC 510

SET

MODE

HOLD

ON/OFF

ENTER

RANGE

CAL

MEAS

Figure 4: Keypad

ON/OFF Powers the meter on or off. When meter is switched on, it starts in the mode the meter

was last in when powered off.

SET Enters advanced setup mode. SETUP mode lets you customise meter preferences and

defaults, and view calibration and probe data.

MODE Measurement: Press MODE to toggle between pH, mV, conductivity and TDS.

Calibration: In calibration mode, press MODE to access temperature calibration.

HOLD

Freezes the measured reading. To activate, press HOLD while in measurement mode. To

release, press HOLD again.

Note: When auto endpoint feature is switched on, meter automatically holds reading after

5 seconds of stability. The HOLD indicator appears on the display. Press HOLD to release

auto endpoint feature.

CAL/MEAS

Toggles between Calibration and Measurement mode. Example: If you are in pH

measurement mode, press CAL/MEAS to enter pH calibration mode.

Note: Temperature calibration is available from pH, TDS or Conductivity calibration mode.

In Setup mode: Press CAL/MEAS to return to main menu from sub menus. Press

CAL/MEAS again to return to measurement mode from main menu.

ENTER/RANGE ENTER: Press to confirm values in Calibration mode and to confirm selections in Setup

mode.

RANGE: Press to switch to manual ranging in Conductivity or TDS mode.

 Press in Setup mode to scroll up through subgroups. Also lets you increase the values

in the conductivity, TDS and temperature calibration modes.

 Press in Setup mode to scroll down through subgroups. Also lets you decrease the

values in the conductivity, TDS and temperature calibration modes.

Instruction Manual PC 510

3.2 Display

The PC 510 features a large dual display that shows the measured parameter in the primary display,

plus temperature in °C or °F in the secondary display. It also features mode annunciators that describe

the meter’s functions.

SETUP MEAS CAL

Primary Display

Secondary Display

ERR

ATC

°C °F

READY

HOLD

OFF

-8.8.8.8

-1.8.8.8

123

1314

20 mS

ppt

ppm

K =

Figure 5: Full LCD Screen

1. SETUP mode indicator

2. MEASurement mode indicator

3. CALibration indicator

4. mV indicator

5. % indicator

6. pH measurement indicator

7. milli-Siemens indicator

8. micro-Siemens indicator

9. parts per thousand indicator

10. parts per million indicator

11. temperature indicator

12. pH indicator

13. Automatic Temperature

Compensation (ATC) indicator

14. ERRor indicator

15. probe indicator

16. calibration solution indicator

17. cell constant indicator

18. ON/OFF indicator

19. HOLD indicator

20. READY indicator

Instruction Manual PC 510

4 PREPARATION

4.1 Connecting the Sensor Electrode

4.1.1 To connect the pH electrode:

1. Slide the BNC connector of the probe over the BNC connector socket on the meter. Make sure the

slots of the connector are in line with the posts of the socket. Rotate and push the connector

clockwise until it locks.

2. To remove electrode, push and rotate the connector anti-clockwise. While holding onto the metal

part of connector, pull it away from the meter

NOTE: Keep connector dry and clean. Do not touch connector with soiled hands.

CAUTION:Do not pull the probe cord or the probe wires might disconnect.

4.1.2 To connect the conductivity/temperature probe:

1. Line up the notch and 6-pins on the probe connector with the holes in the connector located on the

top of the meter. Push down and screw the metal sleeve to lock the probe connector into place.

See Figure 1 on page 1 for the meter rear panel view.

2. To remove probe, unscrew the metal sleeve and slide up the probe connector. While holding onto

the metal sleeve, pull probe away from the meter.

NOTE:Follow the same directions to connect an optional separate temperature element.

Keep connector dry and clean. Do not touch connector with soiled hands.

CAUTION:Do not pull on the probe cord or the probe wires might disconnect.

4.2 Connecting the A.C. Adapter

1. Before plugging in the A.C. adapter, switch off the meter and the power source of the A.C.

adapter. This is a safety precaution that should be adhered to safeguard your meter.

2. The A.C. adapter should have the following settings:

Output voltage: 9 V D.C.

Current: 500 mA

NOTE:Ensure that the input mains voltage (110/220/240 V) matches your adapter requirements.

3. Insert the D.C. jack into the socket at rear panel of the meter as shown in Figure 1on page 1.

4. Switch on the power to the adapter, followed by the meter.

Instruction Manual PC 510

5 CALIBRATION

5.1 Important information on meter calibration

When you calibrate your meter, old calibration points are replaced on a “point by point” basis in pH,

and on a “range by range” basis in conductivity or TDS.

For example:

•pH:if you previously calibrated your meter at pH 4.01, 7.00 and 10.01, and you recalibrate at pH

7.00, the meter retains the old calibration data at pH 4.01 and pH 10.01.

•Conductivity:if you previously calibrated your meter at 1413 µS in the 0 to 1999 µS range and

you recalibrate at 1500 µS (which is also in the 0 to 1999µS range), the meter will replace the old

calibration data (1413 µS) in that range. The meter will retain all calibration data in other ranges.

•TDS:If you previously calibrated your conductivity meter at 300 ppm in the 0 to 999 ppm range

and you re-calibrate at 500 ppm (which is also in the 0 to 999 ppm), the meter will replace the old

calibration data (300 ppm) in that range. The meter will retain all calibration data in other ranges.

To view current calibration points:

•pH:Program P1.0 in the SETUP section 8.2 page 38.

•Conductivity & TDS:Program P5.0 in the SETUP section, page 32.

To completely recalibrate your meter, or when you use a replacement probe, it is best to clear old

calibration data by resetting the meter.

To reset the meter to its factory defaults:

•pH: Program P4.0 in the SETUP section, page 32.

•Conductivity & TDS: Program P9.0 in the SETUP section, page 38.

NOTE:Resetting the meter will set meter to factory defaults. Conductivity and pH must be reset

separately.

For directions on how to calibrate your meter:

•See section 5.3 on page 7 for pH calibration

•See section 5.4 on pages 9 for conductivity calibration

•See section 5.5 on page 11 for TDS calibration

5.2 Preparing the meter for calibration

Before starting calibration, make sure you are in the correct measurement mode. When you switch on

the meter, the meter starts up in the measurement mode you shut it off in. For example, if you shut the

meter off in pH measurement mode, the meter will be in the pH measurement mode when you switch

the meter on.

Do not re-use calibration solutions after calibration. Contaminants in the solution can affect the

calibration, and eventually the accuracy of the measurements. See section 13 on “Accessories” on

page 44 for information on our high quality calibration solutions.

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