Oakton PC 300 Manuel utilisateur

Technology Made Easy ...

Instruction Manual

PC 300

Waterproof Hand-held pH/Conductivity/TDS/Temperature Meter

35631-00

68X248908

Rev3 01/04

99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

Preface

This manual serves to explain the use of the Waterproof PC 300 hand-held meter. It functions in

two ways, firstly as a step by step guide to help you to operate the meter. Secondly, it serves as a

handy reference guide. It is written to cover as many anticipated applications of the Waterproof PC

300 hand-held meter as possible. If there are doubts in the use of the PC 300, please do not

hesitate to contact the nearest Eutech Instruments/ Oakton Instruments Authorized Distributor.

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.

Eutech Instruments Pte Ltd/ Oakton Instruments

Rev3 01/04

TABLE OF CONTENTS

1INTRODUCTION 1

2DISPLAY AND KEYPAD FUNCTIONS 2

2.1 Display 2

2.2 Keypad 3

3PREPARATION 4

3.1 Inserting the Batteries 4

3.2 Probe Information 5

4CALIBRATION 7

4.1 Important Information on Meter Calibration 7

4.2 Preparing the Meter for Calibration 8

4.3 pH Calibration 8

4.4 Conductivity Calibration 11

4.5 TDS Calibration 14

4.6 Calibration with Conductivity Standard and TDS factor 15

4.7 Temperature Calibration 16

5MEASUREMENT 18

5.1 Taking pH Measurements 18

5.2 Taking Conductivity or TDS Measurement 22

6HOLD FUNCTION 28

7ADVANCED SETUP FUNCTIONS 29

7.1 Advanced SETUP Mode Overview 31

7.2 P1.0: Viewing previous pH calibration data 34

7.3 P2.0: Viewing pH electrode data 35

7.4 P3.0: pH Measurement configuration 36

7.5 P4.0: Resetting to factory default settings (pH) 40

7.6 P5.0: Viewing Previous Conductivity Calibration data 41

7.7 P6.0: Viewing Conductivity Probe Data 42

7.8 P7.0: Conductivity or TDS Measurement Configuration 43

7.9 P8.0 Temperature 47

8PROBE CARE AND MAINTENANCE 50

8.1 pH Electrode care 50

8.2 Conductivity Electrode 52

9TROUBLE SHOOTING GUIDE 53

10 ERROR MESSAGES 54

11 SPECIFICATIONS 55

12 ACCESSORIES 56

13 ADDENDUM 1: CONDUCTIVITY TO TDS CONVERSION FACTORS 58

14 ADDENDUM 2: CALCULATING TDS CONVERSION FACTORS 59

15 ADDENDUM 3: CALCULATING TEMPERATURE COEFFICIENTS 60

16 ADDENDUM 4: METER FACTORY DEFAULT SETTINGS 62

17 ADDENDUM 5: SELECTING USA OR NIST BUFFER SET IN P3.3 63

18 WARRANTY 64

19 RETURN OF ITEMS 65

Instruction Manual PC 300

1 INTRODUCTION

Thank you for selecting the PC300 waterproof portable meter. This meter is a microprocessor-

based instrument that is designed to be handy capable of allowing one-hand operation. It is

capable of measuring pH, Conductivity, TDS and Temperature. It is completely

WATERPROOF --- and it FLOATS!

This meter has many user-friendly features ---- all of which are completely accessible through

the water-resistant membrane keypad. Your meter includes a conductivity electrode (cell

constant K = 1.0) with built-in temperature sensor (Order Code: EC-CONSEN91W/ 35608-50),

pH electrode (EC-FE72522-01B/ 35641-51) and batteries. Please read this manual thoroughly

before operating your meter.

Figure 1: PC 300 meter

Instruction Manual PC 300

2 DISPLAY AND KEYPAD FUNCTIONS

2.1 Display

The LCD has a primary and secondary display.

•The primary display shows the measured pH, conductivity or TDS.

•The secondary display shows the measured temperature.

The display also shows error messages, keypad functions and program functions.

See Figure 2.

Figure 2: Full LCD Screen

1. SETup mode indicator 8. micro-siemens indicator 15. Low battery indicator

2. MEASurement mode

indicator 9. parts per thousand indicator 16. Probe indicator

3. CALibration indicator 10. parts per million indicator 17. Calibration solution

indicator

4. mV indicator 11. Temperature indicator 18. Cell constant indicator

5. % indicator 12. pH indicator 19. ON / OFF indicator

6. pH measurement indicator 13. Automatic Temperature

Compensation indicator 20. HOLD indicator

7. milli-Siemens indicator 14. ERRor indicator 21. READY indicator

Instruction Manual PC 300

2.2 Keypad

The large membrane keypad makes the instrument easy to use. Each button, when pressed,

has a corresponding graphic indicator on the LCD. See Figure 1. Some buttons have several

functions depending on its mode of operation.

Key Function

ON/OFF Powers on and shuts off the meter. When you switch on the meter, the meter starts up

in the mode that you last switched off from. For example, if you shut the meter off in

conductivity measurement mode, the meter will be in conductivity measurement mode

when you switch the meter on.

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

To release, press HOLD again.

MODE Selects the measurement parameter. Press MODE to toggle between pH or TDS or

conductivity measurement mode.

CAL/MEAS Toggles between Calibration and Measurement mode.

1. If you are in pH measurement mode, press CAL/MEAS to enter pH calibration

mode.

2. If you are in conductivity measurement mode, press CAL/MEAS to enter

conductivity calibration mode.

3. If you are in TDS measurement mode, press CAL/MEAS to enter TDS

measurement calibration mode.

While in SETUP sub-menu, pressing CAL/MEAS once takes you out to the SETUP

main menu and pressing CAL/MEAS second time takes you directly into the

measurement mode.

ENTER /

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

in SETUP mode.

RANGE function (for conductivity &TDS measurements only): Press to enter manual

ranging function. The MEAS indicator blinks while in manual ranging function.

 /  In Calibration mode:

During conductivity and TDS calibration, press to scroll through calibration values.

In SETUP mode:

Press to scroll through the setup subgroup programs.

SETUP Takes you into the SETUP mode. This mode lets you customize meter preference and

defaults, view calibration, electrode offset data, adjust for temperature coefficient and

normalization temperature.

Instruction Manual PC 300

3 PREPARATION

3.1 Inserting the Batteries

Four AAA batteries are included with your meter.

1. Use a Philips screwdriver to remove the two screws holding the battery cover.

See Figure 3 below.

2. Remove battery cover to expose batteries.

3. Insert batteries. Follow the diagram inside the cover for correct polarity.

4. Replace the battery cover into its original position using the two screws removed earlier.

Figure 3 - Back panel of meter showing meter compartment

Instruction Manual PC 300

3.2 Probe Information

Your meter includes two probes:

•pH electrode with BNC connector.

•conductivity/temperature probe with a notched 6-pin connector

The temperature sensing element 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-in1” pH probe with a built-in temperature element, 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.

You can use any standard pH electrode with a BNC connector with this meter. Conductivity

probes, “3-in-1” pH electrodes with a built-in temperature element, and temperature probes

require a notched 6-pin connector (see Figure 4). For replacement probes, see the

“Accessories” section.

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

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 the connector, pull it away from the meter.

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

Instruction Manual PC 300

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 4.

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

holding onto metal sleeve, pull probe away from the meter.

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

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

Figure 4: Connecting pH and conductivity/temperature probes

Instruction Manual PC 300

4 CALIBRATION

4.1 Important Information on Meter Calibration

When you re-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.

For example:

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

you re-calibrate 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 conductivity meter at 1413 µS

in the 0 to 1999 µS range and you re-calibrate at 1500 µS (which is also in the

0 to 1999 µS), 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

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

To completely re-calibrate your meter, or when you use a replacement probe, it is best to

delete the old calibration data by re-setting the meter.

To reset the meter to its factory defaults:

•pH: Program P4.0 in the SETUP section

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

NOTE: Re-setting 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 4.3 for pH calibration.

•See section 4.4 for conductivity calibration.

•See section 4.4 for TDS calibration.

•See section 4.5 for Temperature calibration.

Table des matières

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