EUTECH INSTRUMENTS pH 1100 Instruction manual

Instruction Manual pH 1100/ pH 2100

Bench pH/Ion Meter

Technology Made Easy ...

68X090818 rev 2.2 Nov 02

CyberScan pH 1100/ 2100

PREFACE

Thank you for selecting the pH 1100/ 2100 benchtop meter. This meter measure pH, millivolts, relative millivolts and temperature. The pH 2100 meter also measures ion concentration.

The instruction manual serves to explain the use of the pH 1100/ 2100 bench meter as a step-by-step operational guide to help you familiarize with the meter’s features and functions. It is structured sequentially with illustration of diagrams that explains the various functions and setup menus available.

This manual is written to cover as many anticipated applications and uses of the pH 1100/ 2100 Bench meter as possible. If there are doubts in the use of the meter, please do not hesitate to contact the nearest Authorized Distributor or Customer Service Dept. for assistance.

Eutech Instruments/ Oakton Instruments reserve the rights to change, make improvement and modify specifications without prior notice and cannot accept any responsibility for damage or malfunction to the instrument caused by improper use.

Copyright © 2002

Eutech Instruments Pte. Ltd.

Oakton Instruments

All rights reserved.

Revision 2.2, Nov 02.

Instruction Manual

TABLE OF CONTENTS

1 INTRODUCTION

1.1

Introducing the Bench Meter Series

1.2

Keypad

1.3

Rear Panel

1.4

Electrode Holder

2 STARTING UP

2.1

Back Panel Connections

2.2

Powering up and powering down

2.2.1

Powering up

2.2.2

Powering down

3

P

H CALIBRATION & MEASUREMENT

3.1

pH calibration

3.1.1

Automatic Temperature Compensation (ATC)

3.1.2

Starting pH calibration

3.1.3

Standard pH buffer calibration

3.1.4

Custom pH buffer calibration

3.1.5

Calibration error messages

3.2

pH measurement

3.2.1

Automatic temperature compensation

3.2.2

Adjusting manual temperature compensation

3.2.3

Taking pH Measurements

4 mV CALIBRATION AND MEASUREMENT

4.1

mV Calibration

4.1.1

mV Calibration error message

4.2

mV Measurement

5 ION CALIBRATION AND MEASUREMENT (ONLY APPLICABLE FOR pH 2100)

5.1

Ion calibration

5.2

Ion calibration error messages

5.3

Ion measurement

6 MEMORY FUNCTIONS

6.1

Memory input

6.1.1

Manually storing a reading into memory

6.2

Memory recall

6.2.1

Recalling readings in manual recall mode

6.2.2

Recalling readings in automatic recall mode

7 STABILITY INDICATOR

8 ALARM FUNCTIONS

8.1

High and Low measurement alarm

8.2

Calibration due alarm

9 TEMPERATURE CALIBRATION

9.1

Temperature Calibration

9.2

Temperature Calibration Error Messages

10 SETUP MODE

10.1

Setup mode overview

10.1.1

pH/Temperature setup submenus

10.1.2

mV setup submenus

10.1.3

Ion setup submenus (pH 2100 only)

10.1.4

Meter general configuration setup submenus

10.2

pH/ temperature setup mode

10.2.1

Entering pH/temperature setup mode

10.2.2

pH buffer setup program P1.0

10.2.3

pH resolution setup program P1.1

10.2.4

Temperature unit setup program P1.2

10.2.5

pH Measurement Alarm Setup Program P1.3

10.2.6

pH Calibration Due Alarm Setup program P1.4

10.2.7

Stability Setup Program P1.5

10.2.8

View pH calibration data setup program P1.6

4


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18

19

18

20

21

22

20

23

23

23

24

24

24

25

14

15

16

16

11

11

12

13

16

17

10

10

10

10

11

6

6

7

8

9

10

25

25

25

26

26

26

31

31

32

33

34

35

29

30

30

30

27

27

28

28

27

Instruction Manual

10.2.9

pH calibration data reset setup program P1.7

10.3

mV setup mode

10.3.1

Entering mV setup mode

10.3.2

mV measurement alarm setup program P2.0

10.3.3

mV calibration due alarm setup program P2.1

10.3.4

Stability setup program P2.2

10.3.5

View mV calibration data setup program P2.3

10.3.6

mV calibration data reset setup program P2.4

10.4

Ion setup mode (pH 2100 meter only)

10.4.1

Entering ion setup mode

10.4.2

Ion unit setup mode P3.0

10.4.3

Ion measurement alarm setup program P3.1

10.4.4

Ion calibration due alarm setup program P3.2

10.4.5

Stability setup program P3.3

10.4.6

Ion mode setup program P3.4

10.4.7

View ion calibration data setup program P3.5

10.4.8

Ion calibration data reset setup program P3.6

10.5

Meter general configuration setup mode

10.5.1

Entering meter general setup mode

10.5.2

Date/time setup mode P4.0

10.5.3

Backlight setup mode P4.1

10.5.4

Data log setup mode P4.2

10.5.5

Memory recall setup mode P4.3

10.5.6

Communication setup mode P4.4

10.5.7

Data transfer setup mode P4.5

10.5.8

Memory clear setup mode P4.6

10.5.9

Meter reset setup mode P4.7

11 ELECTRODE CARE

11.1

Electrode Activation

11.2

Electrode Maintenance

11.3

Storing pH/ORP electrodes

12 RS 232 COMMUNICATION

12.1

Using with printer

12.1.1

Sending data to printer

12.2

Using with computer

13 ADDITIONAL INFORMATION

13.1

pH and Temperature

13.2

pH Buffer Calibration Solution

13.3

Standard pH Buffers

14 SUMMARY OF DEFAULT SETTINGS / OPTIONS

15 TROUBLESHOOTING & ERROR MESSAGES

16 SPECIFICATIONS

17 ACCESSORIES

18 WARRANTY

5


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56

56

56

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52

52

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50

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54

45

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47

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61

62

Instruction Manual CyberScan pH 1100/ 2100

1 INTRODUCTION

1.1 Introducing the Bench Meter Series

The pH 1100/ 2100 bench meter is microprocessor-based which incorporates new ASIC (Application Specific Integrated

Circuit). It is designed with convenience in mind and offers many advanced, user-friendly features. The meters are capable of storing and recalling up to 100 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 pH 1100/ 2100-- bench meter measures pH, millivolts, relative millivolts and temperature. The pH 2100 meter also measures ion concentration. These meters are 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.

6


1.2 Keypad

See Figure 1.

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

Figure 1: Membrane Keypad

ON/OFF

Power meter On or Off

ENTER

EXIT

CAL / ¾

Confirm selection in all modes of operations;

Scroll through the sub-menus program in the SETUP modes

Exit from current modes of operations;

Exit from calibration mode after 3 rd

point calibration (for pH/Ion)

Enter into calibration modes of the meter;

Select or scroll to the next options available

Select the measurement modes:- pH, Ion Concentration, mV, Relative mV

MODE

HOLD

SETUP

¿

À

/ MI

/ MR

PRINT

Freeze the displayed value; allow you to print the held reading or store it into memory

Enter SETUP mode of the meter for customization of meter functions as well as view some diagnostic functions (refer to the table for details of SETUP menus)

Store the displayed value into memory;

Increment values or scroll through the next options available

Recall stored values from the memory in the Last-In-First-Out (LIFO) sequence;

Decrement values or scroll through the next options available

Send measured data being measured or data stored in the memory to a peripheral device via the RS232C port of meter

Numeric Keys (0-9 & .)

Enter numeric values and decimal point at appropriate places

- (Minus)

Enter negative sign at appropriate places

7


See Figure 2.

The pH 1100/ 2100 meters provide a complete set of input connections for the various accessories commonly used.

Listed in the table below are details of the connections that you can make.

Figure 2 : Rear View of the Meter

Connector

ATC

INPUT

Function

For phono jack connection from the temperature probe for Automatic Temperature Compensation.

The probe should be a 30K Ω thermistor probe.

For connecting sensors with a BNC connector to the meter. The meter accepts any pH, ORP or ISE electrode with a BNC connector. Always make sure that the connector is clean and dry.

REF

REC

GND

RS232

DC

For connection to the pin tip type reference electrode normally used with half cell (mono) type pH or

ISE electrodes.

For connection to the strip chart recorder.

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

For connection to the RS232C serial port.

For connection of the AC adapter power supply (included).

8

Instruction Manual

The electrode holder is included in the same box as the meter.

To attach the electrode holder to the meter:

1. The electrode holder base attached to the bottom of the meter comes in the shipping position. See Figure 3.

2. Use a Phillips screwdriver to remove the screw holding the electrode holder in shipping position. See Figure 3.

3. Slide the electrode base away from the meter until the second screw slot lines up with the original screw hole. Use the screw removed earlier to secure electrode holder base into position. See Figure 3.

4. The electrode holder arm is reversible. If desired, remove screw holding electrode holder base and slide base out of brackets.

Slide base into brackets on opposite side and replace screw.

5. To install the electrode arm, turn meter back to the upright position. See Figure 4.

6. Line up the hole on the base of the electrode holder arm with the peg on the electrode holder base. Slide the hole securely onto the electrode holder base.

See Figure 4.

The electrode arm is now ready to swing into desired position.

Figure 3: Bottom of Meter

Figure 4: Fix electrode holder arm to holder base

9



Attention:

Do not get water on the BNC connector during operation.

Avoid touching the connector with soiled or wet hands.

2.1 Back Panel Connections

Refer back to Figure 2. Make the necessary connections as mentioned in Section 1.3 Rear Panel, pg 8.

2.2 Powering up and powering down

1. When first connected to the power supply, the meter runs a self test, the display flashes Hardware Testing... Status:

Pass.

See Figure 5.

2. It then displays current date and time. See Figure 6. This display will also appear when the meter is turned off while still connected to the power supply. See Figure 6.

Figure 7. To turn the meter on press ON/OFF. The upper display flashes Bench pH/Ion 2100 for the pH 2100,

(Display flashes Bench pH 1100 for the pH 1100 meter.) and then the lower display flashes SW Rev 1.20. See

Figure 7.

4. The display flashes System Initializing, Please wait...

See Figure 8.

5. If this is the first power up since the power was connected, you must indicate desired measurement mode. Use >/CAL to select. The mode selected will flash. See Figure 9.

Hardware Testing. . . .

Status: Pass

Bench pH/Ion 2100

SW Rev 1.20

System Initializing

Please wait. . .

Figure 5

Date Time

Jan 25 2002 09:09:30

Figure 6

Figure 7

Figure 8

Press ENTER to confirm. The meter then enters measurement

pH/Temp mV Ion

Select & Press ENTER

6. After initial startup, the meter will automatically return to the measurement mode previously selected as long as Figure 9 power connection is maintained.

System Shutting Down

Please wait. . .

1. To turn the meter off press ON/OFF. The display flashes

Figure 10

System Shutting Down, Please wait... See Figure 10.

Then, the date and time display will appear. See Figure 6. The date and time will continue to display until the power supply is disconnected.

10


3

P

H CALIBRATION & MEASUREMENT

This meter is capable of up to 5 point calibration with selectable buffer sets (USA, NIST, Bf1, Bf2 or any 5 custom buffers of your choice). The meter retains stored pH calibrations even when turned off. For best accuracy, we recommend that you perform at least a 2-point calibration using buffers that bracket (one above and one below) the expected sample range. You can perform a 1-point calibration, but make sure that the buffer value is close to the sample value you are measuring. For custom buffer sets, you must perform at least a 2 point calibration.

Selectable buffer sets:

USA: 1.68, 4.01, 7.00, 10.01, 12.45

NIST: 1.68, 4.01, 6.86, 9.18, 12.45

Bf1: 1.68, 4.01, 6.86, 10.01, 12.45

Bf2: 1.68, 4.01, 7.00, 9.18, 12.45

Any 5 user selected custom buffers

To select which buffer sets you wish to use see Section 10.2.2: Program pH Buffer Setup: P1.0 in the pH/Temp setup mode (page 30).

When you recalibrate your meter, old pH calibration points are replaced on a point by point basis. For example, 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. To view current calibration points, see Section 10.2.8: Program pH Cal Data

P1.6 in the pH/Temp setup mode (page 35).

If you choose to recalibrate to only 1 or 2 pH values, the older calibration values you do not calibrate to will remain stored.

These old stored calibration values may cause accuracy loss when your readings are close to the old values. To clear old calibration data, reset the meter as shown in Section 10.2.9 Program pH Cal Reset: P1.7 in the pH/Temp setup mode

(page 36).

3.1.1 Automatic Temperature Compensation (ATC)

If you will be taking pH measurement using Automatic Temperature

Compensation (ATC), you must perform your pH calibration with

ATC temperature probe attached. Attach the temperature probe to the rear of the meter. The ATC mode annunciator shows on the display. See Figure 11. Insert the probe into the pH buffer solution along with your pH electrode.

If manual temperature compensation is preferred, do not plug a temperature probe into the meter. The MTC mode annunciator shows on the display. See Figure 12. The default manual temperature compensation is 25.0°C. To change the manual temperature compensation default, see Section 9 Temperature

Calibration for instructions (page 26).

Jan 18 2002 08:46:25

Figure 11

Jan 18 2002 08:46:25

Figure 12

11


3.1.2 Starting pH calibration

1. Turn the meter ON. If the meter is not in the pH measurement mode, press EXIT and press >/CAL to select pH/Temp. The mode selected will flash. See Figure 13. Press ENTER to confirm selection. The meter is now in pH measurement mode.

See Figure 14.

pH/Temp mV Ion


2. Rinse the electrode in deionized water or rinse solution. If using the ATC function with a separate temperature probe, rinse the temperature probe as well. Do not wipe the pH electrode or

Figure 13

temperature probe dry. Wiping the probes causes static, and will create calibration and measurement instability.

3. Select pH buffer and pour into a clean container.

4. Dip the electrode and ATC probe into the calibration buffer. The

Jan 18 2002 08:46:25

Figure 14 end of the probes must be completely immersed into the sample. Stir probes gently to create a homogeneous sample.

>/CAL to enter the pH calibration mode. The display flashes Cal Mode Activated, Please wait....

See Figure 15. The meter is now in pH calibration mode.

Cal Mode Activated

Please wait. . .

Figure 15

The meter automatically recognizes the buffers in the set you have selected in the SETUP mode. If you wish to change the buffer set selected, see Section 10.2.2, Program pH Buffer Setup: P1.0 in the pH/Temp setup mode (page 30).

If your meter is set up for standard buffers (USA, NIST, Bf1, Bf2), proceed to Section 3.1.3: Standard pH buffer

calibration (page 13). If your meter is set up for custom buffers, proceed to Section 3.1.4: Custom pH buffer calibration

(page 14).

12


3.1.3 Standard pH buffer calibration

1. When entering the standard calibration mode, the first buffer calibration point for standard pH buffers is 7.000 or 6.860

(depending upon which pH buffer set is selected). The upper display shows the current reading, the lower display will show

Auto Buf Scan: 7.000 (or 6.860). The upper display will flash pH until the reading has stabilized. See Figure 16. If the selected buffer value is not within ±1.0 of the measured pH value, the

Auto pH Scan will continue to change until the pH buffer is within ±1.0.

2. When pH reading has stabilized, press ENTER. The lower display flashes *pH Offset Cal Done. See Figure 17. This calibration point is now stored in the meter.

• If you are performing a one-point calibration, press EXIT.

The screen flashes Sys Updating...Please wait....The meter then returns to the pH measurement mode. You may now start taking pH readings.

• If you are performing a multi-point calibration, go to step 3.

3. Rinse the probe with deionized water or a rinse solution, and place it in the next pH buffer. The lower display automatically scans to the next pH buffer solution.

4. Wait for the measured pH value to stabilize. The upper display will flash pH until the reading has stabilized.

5. When pH reading has stabilized, press ENTER. The lower display flashes 2 Point Cal Done * (3 if you have calibrated 3 points,4 if 4 points, etc.). See Figure 18. This calibration point is now stored in the meter. Repeat steps 3-5 for each point you wish to calibrate. When you are finished calibrating, press EXIT.

The screen flashes Sys. Updating... Please wait.... The meter then returns to the pH measurement mode. You may now start taking pH readings.

6. If you perform a complete 5-point pH calibration, when you calibrate the fifth point and press ENTER, the meter automatically returns to measurement mode. You may now start taking pH readings.

NOTE:

7.001pH 25.4 C ATC

Auto Buf Scan: 7.000

10.010

°

Figure 16

Figure 17

2 Point Cal Done

Error: Cal Aborted

*

Figure 18

Figure 19

To exit from pH calibration mode at any point without confirming calibration, DO NOT press ENTER in steps 2, 5 or 6.

Press EXIT instead. If EXIT is press before a 1-point calibration is performed the upper display flashes Error: Cal Aborted.

See Figure 19.

DO NOT REUSE SOLUTIONS AFTER CALIBRATION.

Contaminants in the solution can affect the calibration, and eventually the accuracy of the measurements.

13


3.1.4 Custom pH buffer calibration

1. When entering the custom calibration mode, the lower display will show Key In Std:. The upper display shows the pH buffer the electrode is dipped into. The lower display will show the same value as the upper display only if the meter has not been calibrated or if the meter has been reset. See Figure 20. If the meter has previously been calibrated, the lower display will toggle to the stored calibration point that is closest to current buffer value.

2. Using the numeric keypad (See Figure 21), enter the value of the first custom pH buffer. If you make a mistake, use the ∆ /MI or ∇ /MR to highlight mistake, then retype.

Figure 20 display will read 1 Point Cal Done *. See Figure 22.

NOTE: In the custom pH buffer calibration mode you must perform at least a 2-point calibration, if you press EXIT before you calibrate at 2 points the screen will flash Error: Cal Aborted

(See Figure 23) and will return to the pH measurement mode without confirming any calibration points.

4. Rinse the probe with deionized water or a rinse solution, and place it in the next custom pH buffer. The lower display will show Key In Std: The upper and lower displays show the pH value.

5. Enter the value of the next custom pH buffer. Press ENTER when done. The display will read 2 Point Cal Done *. If you are performing a 2-point calibration, press EXIT. The screen flashes

Sys Updating...Please wait... The meter then returns to the pH measurement mode. You may now start taking pH readings.

• If you are performing a 3, 4 or 5-point calibration go to step

6.

6. Repeat steps 4 and 5 for each additional custom buffer. Upon confirmation of pH buffer, the display will read 3 Point Cal Done

* (4 if you have calibrated points, etc). When you have finished calibrating desired number of points, press EXIT. The screen flashes Sys. Updating... Please wait...

The meter then returns to the pH measurement mode. If you have entered 5 calibration points, the meter will automatically return to pH measurement mode. You may start taking pH readings.

1

Numeric Keypad

Figure 21

Point Cal Done *

Figure 22

Error: Cal Aborted

Figure 23

NOTE:

To exit from pH calibration mode at any point without confirming calibration, DO NOT press ENTER in steps 3 or 5. Press

EXIT. If EXIT is pressed before a 2-point calibration is performed the upper display flashes Error: Cal Aborted. See

Figure 23.

DO NOT REUSE SOLUTIONS AFTER CALIBRATION.

Contaminants in the solution can affect the calibration, and eventually the accuracy of the measurements.

14


3.1.5 Calibration error messages

Standard pH Buffer Calibration:

If the first buffer value of 7.000 or 6.860 is off by more than ±1.0, the upper display will flash Error: and the lower display will read

pH Offset Error. See Figure 24. Press EXIT to clear error message and return to pH measurement mode.

If any other pH buffer point is off by more than ±1.0, the upper display will flash Error: and the lower display will read pH Slope

Error. See Figure 25. Press EXIT, to clear error message and return to pH measurement mode.

Custom pH Buffer Calibration:

If the each custom pH buffer value is not within ±1.0 pH of the keyed in value, the upper display will flash Error: and the lower display will read Too much offset @7pH. See Figure 26. Press

EXIT to clear error message and return to pH measurement mode.

If the slope is not within 75% to 105%, the upper display will flash Error: and the lower display will read Slope out: 75% -

105%.

See Figure 27. Press EXIT to clear error message and return to pH measurement mode.

If adjacent calibration points are less than ±1.0 pH apart, the upper display will read Error: Pts too close, and the lower display will read OR slope diff. sign. See Figure 28. Press EXIT to clear error message and return to pH measurement mode.

/measurement

Error :

*

Figure 24

Error :

*

Figure 25

Error :

Too much Offset @7

Figure 26

Error :

Slope out:75% - 105%

Figure 27

Error :Pts too close

Or slope diff. sign

Figure 28

15


This meter is capable of taking measurements with automatic or manual temperature compensation. Automatic Temperature

Compensation (ATC) occurs when a temperature sensor is plugged into the meter. If there is no temperature sensor plugged into the meter, the default setting is automatically 25°C

(if the meter has never been manually set for temperature) or the last manually set value. You can manually set the temperature to match your working conditions using a separate thermometer.

3.2.1 Automatic temperature compensation

For automatic temperature compensation, simply plug the temperature probe into the meter (see page 8). The ATC indicator will light on the LCD. See Figure 29.

NOTE: If you are using a temperature probe, the probe must be submersed in the liquid you are measuring.

3.2.2 Adjusting manual temperature compensation

IMPORTANT: For manual compensation, you must disconnect the temperature probe.

1. Turn the meter ON. If the meter is NOT in the pH measurement mode, press EXIT and use >/CAL to select pH/Temp. The mode selected will flash. See Figure 30.

Press ENTER to confirm selection. The meter is now in pH measurement mode. If the temperature probe is disconnected, the upper display will indicate MTC. See

Figure 31.

2. Press >/CAL to enter pH/Temp calibration mode. The display will flash Cal Mode Activated, Please wait... Press

>/CAL key again to enter the temperature calibration mode.

The display will flash Temperature Cal Mode.

(Please remove this gap. The copy should follow as one.)See

Figure 32. The upper display then reads MTC Temp:

25.0°C and the lower display reads Key In Std: 25.0°C. See

Figure 33.

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

4. Key in the temperature value using the numeric keypad. If you make a mistake, use the ∆ /MI or ∇ /MR key to highlight mistake, then re-enter. pH measurement mode. Display will flash Temp Cal

Complete in the upper display and MTC Set Temp:

(temperature that was keyed in). See Figure 34. The display will flash Sys. Updating...Please wait... The meter then returns to pH measurement mode and will now compensate pH reading with the manually set temperature.

NOTE: To exit this program without confirming the manual temperature compensation value, do not press ENTER in step 5.

Press EXIT instead. The display will flash Error: Cal Aborted and meter will return to pH measurement mode.

°

Jan 18 2002 08:46:25

Figure 29

pH/Temp mV Ion


Figure 30

°

Jan 18 2002 08:46:25

Figure 31

Temperature Cal Mode

Figure 32

MTC Temp : 25.0 C

°

Figure 33

Temp Cal Complete

Figure 34

16


3.2.3 Taking pH Measurements

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

1. Rinse the probe with deionized or distilled water before use to remove any impurities adhering to the probe body. If the pH electrode dehydrated, soak it for 30 minutes in electrode storage solution or a 2M to 4M KCl solution.

ON. The upper display shows current pH reading and temperature, and indicates automatic or manual temperature compensation. The lower display shows month, date, year and time. See Figure 35.

3. Dip the probe into the sample. Make sure the sensor or the glass bulb of the electrode is completely immersed into the sample. Stir the probe gently to create a homogenous sample.

4. Allow time for the reading to stabilize. The pH indicator blinks when reading is not stable. See Figure 36. When the readings stabilizes, the pH indicator freezes and no longer blinks.

°

Jan 18 2002 08:46:25

Figure 35

°

Jan 18 2002 08:46:30

Figure 36

17


4 mV CALIBRATION AND MEASUREMENT

1. Turn the meter ON. If the meter is not in the mV measurement mode, press EXIT and use >/CAL to select mV. The mode selected will flash. See Figure 37. Press

ENTER to confirm selection. The meter is now in absolute mV measurement mode. See Figure 38.

2. Rinse the electrode in deionized water or rinse solution.

Do not wipe the electrode dry. Wiping the probes causes static, and will create calibration and measurement instability.

3. Select your standard and pour into a clean container.

4. Dip the probe into the standard. The end of the probe must be completely immersed into the sample. Stir the probe gently to create a homogeneous sample.

pH/Temp mV Ion


Figure 37

Abs. mV : 226.9mV

Jan 20 2002 20:30:05

Figure 38

Cal Mode Activated

Please wait. . .

Figure 39

>/CAL key to enter the mV calibration mode. The display will read Cal Mode Activated, Please wait... See

Figure 39. The meter is now in mV calibration mode. The upper display shows Abs. mV: and lower display shows

Key in Std: See Figure 40.

NOTE: In mV calibration, the value shown in the upper display is the same as the lower display.

6. Key in the mV value to match the standard value using the numeric keypad. If you make a mistake, use the ∆ /MI or ∇ /MR to highlight mistake, then re-enter.

Abs. mV : 226.9mV

Key In Std: 226 . 9 mV mV Cal Completed

Figure 40

mV Offset: -3.7 mV

Figure 41 flashes mV Cal Completed, mV Offset: (shows the mV offset value). See Figure 41. It then flashes Sys

Updating... Please wait.... The meter returns to mV measurement mode. The upper display now reads Rel. mV. See Figure 42.

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

To exit from mV calibration mode at any point without confirming calibration, DO NOT press ENTER in step 7. Press

EXIT.

The upper display then flashes Error: Cal Aborted.

See Figure 43.

4.1.1 mV Calibration error message

Rel. mV : 200.0mV

Jan 20 2002 20:34:45

Error: Cal Aborted

Error :

Figure 42

Figure 43

mV Offset too large

Figure 44

If the offset adjustment of your mV calibration is not within ±150.0 mV; the upper display will flash Error: and the lower display will read mV Offset too large. See Figure 44. Press EXIT to clear error message and return to mV measurement mode.

18


1. Turn the meter ON. If the meter is NOT in the mV measurement mode, press EXIT and use >/CAL to select mV.

The mode selected will flash. See Figure 45. Press ENTER to confirm selection.

The meter is now in Rel mV measurement mode. See Figure 46. If you have not performed a mV calibration or have reset the meter, the display will read Abs. mV. See Figure 47.

2. Dip the electrode into the sample. The sensor or glass bulb of the electrode must be completely immersed into the sample.

Stir the electrode gently to create a homogeneous sample.

3. Allow time for the reading to stabilize. The upper display will show the mV reading, and the lower display will show the current month, day and time. See Figure 46.

pH/Temp mV Ion


Figure 45

Rel. mV : 200.0mV

Jan 20 2002 20:34:45

Figure 46

Abs. mV : 226.9mV

Jan 20 2002 20:30:05

Figure 47

19


5 ION CALIBRATION AND MEASUREMENT (ONLY APPLICABLE FOR pH 2100)

The pH 2100 meter reads ion concentration in ppm, ppt, mg/l, g/l, mmol/l and mol/l units. See Ion setup Program P3.0

(page 43) to select ion concentration units.

This instrument is capable of up to 5-point custom ion calibration with a minimum of 2-point calibration. Custom calibration values can be any value between 0.001 and 19998. Once the first calibration value is keyed in, all other calibration will automatically be at least one decade apart.

For example if your first calibration point is at 0.001, all other calibration points will be at least one decade apart from

0.001 (0.001, 0.01, 0.1,1.0, 10.0, 100, 1000, 10000).

For best accuracy calibrate your meter to points with similar concentrations to the solutions you want to test.

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

pH/Temp mV Ion


Figure 48 mode, press EXIT and use >/CAL to select Ion. The mode selected will flash. See Figure 48. Press ENTER to confirm selection. The meter is now in Ion measurement mode.

3. If the meter has not been calibrated or has been reset, the display will flash Ion Meas and current mV value. See Figure

49. If the meter has been calibrated previously, the display will show the current concentration value plus the absolute mV produced by the electrode.

4. Dip the electrode into the first calibration standard. Start with the calibration standard that has the lowest concentration and move up to higher concentration standards.

Ion Meas 160.3mV

Jan 20 2002 21:54:34

Figure 49

Cal Mode Activated

Please wait. . .

Figure 50

Ion Conc: ppm

Abs. mV : 100.7mV

Figure 51 flash Cal Mode Activated, Please wait... See Figure 50. The display then shows Ion Conc: ppm (or unit selected in ion setup mode) in the upper display and Abs. mV: in the lower display. See Figure 51.

6. The first calibration point must be keyed in by the user. Key in the concentration value of the standard using the numeric keypad. If you make a mistake, use the ∆ /MI or ∇ /MR keys to highlight mistake, then re-enter.

ENTER to confirm the first calibration point. The display will flash 1 Cal Point Done *, then the meter proceeds to the next calibration point at least 1 decade apart from the first calibration point. See Figure 52.

8. Use /MI or ∇ /MR keys to move the cursor to next calibration point. All points will be a decade apart from the first calibration point.

9. Rinse off the electrode with deionized water before placing it in the next calibration standard.

10. Allow probe to stabilize in calibration standard. Press ENTER to confirm. The display flashes 2 Point Cal Done *. See

Figure 53.

The meter proceeds to the next calibration point.

Ion Conc:0.01ppm

1 Point Cal Done *

Ion Conc:0.10ppm

Figure 52

2 Point Cal Done *

Figure 53

20


If you are performing a 2-point calibration, press EXIT.

The screen flashes Aver. Slope = (the average slope of the electrode) in the upper display and Sys Updating... in the lower display. See Figure 54. The meter returns to the Ion measurement mode. You may now start taking readings.

If you are performing a 3, 4 or 5-point calibration go to step 11.

11. Use ∆ /MI or ∇ /MR keys to move the cursor to next calibration point.

12. Rinse off the electrode with deionized water before placing it in the next calibration standard.

13. Allow probe to stabilize in calibration standard. Press ENTER to confirm. The display flashes 3 Point Cal Done * (4 for 4 point,

etc.).

See Figure 55. The meter proceeds to the next calibration point.

14. Repeat steps 11-13 until you finish calibrating at desired number of points (up to 5 points). Press EXIT. The screen flashes Aver.Slope = (the average slope of the electrode) in the upper display and Sys Updating... in the lower display. See

Figure 54. The meter returns to the Ion measurement mode.

At the end of a 5-point calibration, the meter automatically flashes Aver. Slope = and Sys Updating, and returns to measurement mode.

NOTES: You may compare the average electrode slope value with the expected slope value for your electrode from your electrode manual to verify electrode operation. If you want to leave the calibration mode prior to confirming two calibration points, press

EXIT key to exit calibration mode. The meter will revert to back to the earlier calibration curve. If you have calibrated to two points, pressing EXIT will confirm the new calibration. New ion calibrations will over-ride the existing stored ion calibration data. The meter retains stored ion calibrations even when the meter is turned off or if the power cord is unplugged or power is cut off to the AC adapter.

5.2 Ion calibration error messages

If you leave the ion calibration mode prior to confirming two calibration points by pressing the EXIT key, the screen will flash

Error: Cal Aborted. See Figure 56. The meter will revert to back to the earlier calibration curve and return to the ion measurement mode.

If the average ion slope is not within 10 to 75 mV per decade, the upper display will flash Error: and the lower display will read Ion

Slope Error. See Figure 57.

Aver. Slope = 49.2mV

Sys Updating. . .

Figure 54

Ion Conc: 1.0ppm

3 Point Cal Done *

Figure 55

Error: Cal Aborted

Figure 56

Error :

Ion Slope Error

Figure 57

21


The pH 2100 meter features two different modes of ion measurement: high resolution mode and low resolution mode.

These modes are user selectable in the Ion setup program P3.4.

(page 47). The default is high resolution mode. Low resolution mode should only be used if your ion solution concentration will produce an absolute mV value of ±500 mV.

1. Turn the meter ON. If the meter is NOT in the Ion measurement mode, press EXIT and use >/CAL to select Ion.

The mode selected will flash. See Figure 58. Press ENTER to confirm selection. The meter is now in Ion measurement mode. If the meter has not been calibrated, or has been reset, the display will flash Ion Meas and current mV value. See

Figure 59. If the meter has been calibrated, the display will show the current concentration value plus the absolute mV produced by the electrode.

See Figure 60.

2. Prepare samples as necessary. Sample preparations varies depending on ion type—see your electrode manual for details on the specific electrode that you are using.

3. Dip electrode into the sample. The sensor or glass bulb of the electrode must be completely immersed into the sample.

4. Allow time for the reading to stabilize, then record your measurement.

NOTE: The display in the ion measurement mode shows mV that correlates to the electrode output. Charge in mV will typically be

59.7 mV for monovalent ions (1

+ or 1

- charge) and 29.8 mV for divalent ions (2

+ or 2

- charge).

pH/Temp mV Ion


Figure 58

Ion Meas 160.3mV

Jan 20 2002 21:54:34

Figure 59

0.013ppm 160.3mV

Jan 21 2002 21:35:34

Figure 60

22


This meter can store up to 100 sets of data in several combinations: pH 1100 meter:

• pH, temperature, date and time

• mV, temperature, date and time pH 2100 meter:

• pH, temperature, date and time

• mV, temperature, date and time

• ion, mV, date and time

For example, you can store 32 pH and 68 mV values for the pH 1100 or 50 ion, 25 mV and 25 pH values for the pH 2100.

This meter can be setup to log readings automatically or manually. To set the meter to log automatically, see Meter

Setup Program P4.2, Data Log Setup (page 52). The meter can log readings at intervals from 10 seconds to 23 hours 59 minutes and 59 seconds.

6.1.1 Manually storing a reading into memory

1. During any measurement mode function, press ∆ /MI key to input data into memory.

2. The upper display will read current measurement function and

Data Log. . . . Loc: 9

the lower display will flash Data Log.... Loc: (the memory storage location). See Figure 61. The meter then returns to measurement mode.

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

Figure 61

23


This function recalls the previous readings stored in the memory. You can only access memory recall from the measurement mode. Memory recall is in “Last In First Out” (LIFO) order.

There are two methods of viewing stored data in the memory recall function: manual and automatic. In manual memory recall, the user must manually scroll through the memory points using the ∆ /MI and ∇ /MR keys. In automatic memory recall, the meter automatically scrolls through the memory points. To choose the method of viewing stored data you wish to use, see Meter Setup mode Program P4.3 MemRecall Setup (page 52).

6.2.1 Recalling readings in manual recall mode the /MR key once to retrieve the last reading stored.

The display flashes Mem Recall Activated, Please wait... See

Figure 62.

The display then flashes the memory location last stored in the lower display. See Figure 63. Then the display shows the recorded value (pH/temp, mV or Ion/mV) in the upper display and toggles between memory location and date in the lower display. See Figures 64-65. the /MR key to select the next memory location or the

∆ /MI key to select the previous memory location.

3. Repeat step 2 to review additional stored data sets.

4. To exit Memory Recall, press EXIT and return to the measurement mode.

6.2.2 Recalling readings in automatic recall mode

1. Press the ∇ /MR key once to retrieve the last reading stored.

The display flashes Mem Recall Activated, Please wait... See

Figure 62. The display then flashes the memory location last stored in the lower display. See Figure 63. Then the display shows the recorded value (pH/temp, mV or Ion/mV) in the upper display and date and time in the lower display. See

Figure 64.

2. After 8 seconds, the meter automatically scrolls to the next to memory location. The display flashes the next memory location stored. See Figure 66. The display then shows the recorded value (pH/temp, mV or Ion/mV) in the upper display and date and time in the lower display. See Figure 67.

3. The meter will continuously scroll through all the memory points stored indefinitely. To exit memory recall, press EXIT and return to the measurement mode.

NOTES: If no new readings are stored after memory recall function has been exited, the next time the memory recall function is activated, it will resume at the memory location point where it was last exited. If a new point is stored, the memory recall function will begin with that point. Readings stored in memory are retained even if the unit is turned off. To erase all readings stored in memory, see

Meter Setup Program P4.6, Mem Clear Setup (page 54).

Mem Recall Activated

Please wait. . .

Mem Loc:9

Figure 62

Figure 63

Jan 21 2002 08:52:35

Mem Loc:9 08:52:35

Mem Loc:8

5.695pH 25.3 C ATC

5.695pH 25.3 C ATC

°

Figure 64

Figure 65

Figure 66

Jan 18 2002 08:50:35

Figure 67

24


The stability indicator signals when pH, mV or Ion readings are stable.

The pH, mV or Ion annunciator will blink when reading are not stable.

See Figure 68. Once the reading becomes stable the annunciator becomes static and no longer blinks.

You can turn the stability indicator on and off and set the level of stability in pH Setup Section P1.5 (page 34); mV Setup P2.2 (page

40); and Ion Setup P3.3 (page 46).

°

Jan 18 2002 08:46:30

Figure 68

8.1 High and Low measurement alarm

Your meter has high and low measurement alarms that can be individually set for pH, mV and Ion (pH 2100 only). To set high and low measurement alarms, please refer to the setup sections pH Setup P1.3 (page 32); mV Setup P2.0 (page

38); and Ion Setup P3.1 (page 44).

If the measured value exceeds the alarm setting, the meter will “beep”; the upper display flashes measured parameter flashes; and the lower displays Hi-Alarm or Lo-Alarm. See Figures 69 and 70.

The following conditions are necessary to signal an alarm:

• pH: The high alarm must be at least 1.0 pH greater than the low alarm

• mV: The high alarm setting must be at least 100.0 greater than the low alarm

• Ion: The high alarm setting must be at least half of the next decade greater than the low alarm

Lo-Alarm 08:46:25

Figure 69

Hi-Alarm 08:46:25

Figure 70

pH Calibration Due

Calibration Abort

Figure 71

8.2 Calibration due alarm

You can set this meter to signal an alarm when calibration is due.

Individual calibration due alarms can be set for pH, mV and Ion

(pH 2100 only) at a period of 1 to 365 days from the last calibration.

To set calibration due alarm, please refer to the setup sections pH

Setup P1.4 (page 33); mV Setup P2.1 (page 39); and Ion Setup

P3.2 (page 45). The meter will “beep” during power up if calibration is due. The upper display will read pH (mV or Ion)

Calibration Due, the lower display will flash Calibration and read

Abort. See Figure 71.

Use >/CAL to select Calibration or Abort.

• Select

• meter calibration.

Abort to override alarm. Meter reverts to measurement mode.

Press ENTER to confirm selection.

25


For this calibration procedure, the ATC probe should be attached to the meter. ATC will appear in the upper display. See

Figure 72.

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. If you are not already in pH/temp measurement mode, press

7.546pH 25.3 C ATC

Jan 18 2002 08:46:30

Figure 72

EXIT and use >/CAL to select pH/Temp. The mode selected will flash See Figure 73. Press ENTER to confirm selection.

The meter is now in pH measurement mode.

pH/Temp mV Ion


Figure 73 will flash Cal Mode Activated, Please wait... Press >/CAL again to enter the temperature calibration mode. The display will flash

Temperature Cal Mode. See Figure 74. Then the upper display will read ATC Temp: (current temperature) and the lower display will read Key In Std: (current temperature). See Figure

75.

4. Key in the known temperature value from step 1 using the numeric keypad. If you make a mistake, use the ∆ /MI or ∇ /MR keys to highlight mistake, then re-enter.

5. Press ENTER to confirm. The display flashes Temp Cal

Complete, ATC Offset: (shows offset value). See Figure 76. The display then flashes Sys Updating, Please wait..., and the meter returns to pH measurement mode.

NOTE: The meter will not allow input values that exceed the allowable limit of ±5°C (±9°F) of the original displayed reading.

9.2 Temperature Calibration Error Messages

Temperature Cal Mode

Figure 74

ATC Temp : 25.0 C

Figure 75

Temp Cal Complete

°

Figure 76

Error: Cal Aborted

If you press EXIT to leave the temperature calibration mode prior to confirming the calibration, the screen will flash Error: Cal Aborted.

See Figure 77. The meter then returns to pH measurement mode. If the temperature value keyed in (temperature offset) is not within

±5.0°C (±9.0°F) of the current temperature value, the upper display will flash Error: and the lower display will read ATC offset too large.

See Figure 78. The meter returns to temperature calibration mode and a new temperature offset value needs to be entered.

Figure 77

Error :

ATC Offset too large

Figure 78

26


10 SETUP MODE

The advanced setup mode lets you customize your meter’s preferences and defaults. The pH 2100 benchtop meter features 4 different setup modes (the pH 1100 meter features 3 modes):

1. pH/Temperature

2. mV

3. Ion (pH 2100 only)

4. Meter general configuration

Each setup mode has submenus to configure specific meter parameters.

10.1 Setup mode overview

10.1.1 pH/Temperature setup submenus

Press SETUP to enter setup mode from the pH measurement mode. Use >/CAL to select pH/Temp, and then press

ENTER to enter pH/Temp setup mode. Use the ∆ /MI and ∇ /MR keys to scroll through sub menus. There are 8 sub menus (programs) in the pH/Temperature setup mode: pH Buffer Setup:P1.0

-Selects calibration buffer sets

(USA, NIST, Bf1, Bf2 or

custom) pH Buffer Setup: P1.0

Press ENT. to Select see page 30 pHCalDue Alarm: P1.4

Press ENT. to Select see page 33 pH Resolution Setup:P1.1

-Selects pH resolution

(0.01 or 0.001 pH)

Temperature Unit Setup:P1.2

-Selects temperature

measurement unit (°C or °F) pH Measurement Alarm

Setup P1.3

-Sets low and high pH alarm pH Resol. Setup: P1.1

Press ENT. to Select see page 31

Temp Unit Setup:P1.2

Press ENT. to Select see page 31 pH Meas. Alarm :P1.3

Press ENT. to Select see page 32 pH Calibration Due Alarm

Setup:P1.4

-Sets calibration reminder

alarm, select 1-365 days

from last calibration date

Stability Setup:P1.5

-Sets stability indicator

criteria, off or on (high,

medium or low)

View Calibration Data:P1.6

-Last pH calibration

date/time

-pH buffer set selected

-pH calibration temperature

and temperature

compensation mode

-pH offset value

-pH slopes (from acid to

alkaline) pH Calibration Reset:P1.7

-Clears all pH calibration data

Stability Setup: P1.5

Press ENT. to Select see page 34 pH Cal Data :P1.6

Press ENT. to Select see page 35 pH Cal Reset :P1.7


27


10.1.2 mV setup submenus

Press SETUP to enter setup mode. Use >/CAL to select mV, and then press ENTER. Use the ∆ /MI and

∇ /MR keys to scroll through submenus There are 5 submenus (programs) in the mV setup mode: mV Measurem ent Alarm

Setup :P2.0

-Sets low and high mV alarms mV Meas. Alarm : P2.0

Press ENT. to Select see page 38 mV Calibration Due Alarm

Setup: P2.1


alarm, select 1-365 days from

last calibration date mVCalDue Alarm :P2.1



-Sets stability indicator criteria,

off or on (high, medium or low)

Stability Setup:P2.2


View mV Calibration

Data:P2.3

-Last mV calibration date/time

mV offset value mV Cal Data : P2.3

Press ENT. to Select see page 41 mV Calibration Reset:P2.4

-Clears all mV calibration data mV Cal Reset : P2.4


10.1.3 Ion setup submenus (pH 2100 only)

Press SETUP to enter setup mode from the Ion measurement mode. Use >/CAL to select ion, and then press ENTER. Use the ∆ /MI and ∇ /MR keys to scroll through submenus. There are 7 submenus (programs) in the ion setup mode:

Ion Unit Setup:P3.0

-Selects Ion measurement

unit(ppm, ppt, mg/L, g/L,

mmol/L, mol/L)

Ion Unit Setup :P3.0


Ion Measurement Alarm

Setup:P3.1

-Sets low and high Ion

alarms

Ion Meas. Alarm:P3.1


Ion Calibration Due Alarm

Setup:P3.2


alarm, select 1-365 days

from last calibration date

IonCalDue Alarm:P3.2



-Sets stability indicator

criteria, off or on (high,

medium or low)

Stability Setup:P3.3


Ion Mode Setup:P3.4

-Selects between high or low

Ion resolution mode (high

has ±500 mV value, low has

±1850 mV value)

Ion Mode Setup:P3.4


View Calibration Data:P3.5

-Last Ion calibration

date/time. Calibration points

with absolute mV values

Ion slopes (from low to high

concentration)

Ion Cal Data :P3.5


Ion Calibration Reset:P3.6

-Clears all Ion calibration

data

Ion Cal Reset :P3.6


28


10.1.4 Meter general configuration setup submenus

Press SETUP to enter setup mode. Use >/CAL to select meter, and then press ENTER. Use the ∆ /MI and ∇ /MR keys to scroll through submenus. There are 8 submenus (programs) in the meter setup mode:

Date/Time Setup:P4.0

Sets day, month, year, hour and minute

Date/Time Setup:P4.0


Memory Clear Setup:P4.6

Clears data from stored memory

Mem Clear Setup:P4.6


Backlight Setup:P4.1

-Turns backlight on or off and

selects amount of time

backlight stays on after button

press

Data Log Setup:P4.2

-Sets automatic or manual

memory recall and sets

datalogging time interval (10

seconds to 23 hours, 59

minutes, 59 seconds).

Memory Recall Setup:P4.3

-Selects automatic or manual

memory recall.

Rs232 Communication

Setup:P4.4

-Sets Baud Rate (4800, 9600 or

19200)

-Sets Stop Bit (One or Two)

-Sets Parity (None, Odd or

Even)

Backlight Setup:P4.1


Data Log Setup:P4.2


MemRecall Setup:P4.3


Tx/Rx Parameter: P4.4

Press ENT.

to Select see page 53

Meter Reset:P4.7

-Resets meter to factory

defaults

-Resets baud rate to 9600

-Resets stop bit to 2

-Resets parity to EVEN

-Clears all pH/mV/Ion

calibration data

-Resets manual temperature

compensation to 25.0°C

-Resets pH/mV/Ion

measurement alarm to OFF

-Resets pH/mV/Ion

calibration due alarm to

OFF

-Resets stable indicator to

ON with low stability setting

-Resets datalogging and

memory recall to manual

-Resets backlight to ON with

2.0 minute duration

-Clears all data from stored

memory

Meter Reset :P4.7


Data Transfer Setup:P4.5

-Selects what data gets sent to

computer/printer when PRINT

Data Transfer :P4.5


29


10.2 pH/ temperature setup mode

10.2.1 Entering pH/temperature setup mode

1. Turn the meter ON. If the meter is not in the pH measurement mode, press EXIT and use >/CAL to select pH/Temp. The mode selected will flash. Press ENTER to confirm. The meter is now in pH measurement mode.

Setup Mode Activated

Please wait. . .

Figure 79

Setup Mode Activated, Please wait... See Figure 79.

3. The meter then enters the pH/Temp Meter Setup screen. Use

>/CAL to select pH/Temp. The mode selected will flash. See

Figure 80. Press ENTER to enter pH/Temp setup mode.

4. The first setup program in pH/Temp mode is pH Buffer Setup:

P1.0. See Figure 81. If you want to skip to another program, use the ∆ /MI and ∇ /MR keys to scroll to the desired program.

5. To exit the setup mode at anytime, press EXIT. The meter returns to the pH/Temp measurement mode.

NOTE: To exit the setup mode at anytime without confirming changes, press EXIT. If you have made any changes to any programs and press EXIT, these changes will be confirmed. To reset meter to default factory settings, see setup program Meter

Reset P4.7 (page 54).

10.2.2 pH buffer setup program P1.0

Setup: pH/Temp Meter


Figure 80

pH Buffer Setup:P1.0

Press ENT. to Select

Figure 81

Use this program to select calibration buffer sets: USA, NIST, Bf1, Bf2 or custom.

Selectable buffer sets:

USA: 1.68, 4.01, 7.00, 10.01, 12.45

NIST: 1.68, 4.01, 6.86, 9.18, 12.45

Bf1: 1.68, 4.01, 7.01, 9.18, 12.45

Bf2: 1.68, 4.01, 6.86, 10.01, 12.45

Custom: any 5 user selected custom buffers

1. Enter the pH/Temperature setup mode as described above

(10.2.1 Entering pH/temperature setup mode). The first setup mode is pH Buffer Setup: P1.0. See Figure 81.

USA NST Bf1 Bf2 Cust


Figure 82

Buffer set selected will flash. See Figure 82.

ENTER to confirm selection and return to the setup mode. Press ∆ /MI key to continue to the next setup program, or press ∇ /MR to go to the previous program (P1.7 pH

Calibration Reset). Press EXIT to return to the pH measurement mode.

30

Instruction Manual

10.2.3 pH resolution setup program P1.1

Use this program to select pH resolution (0.01 or 0.001 pH).

1. Enter in 10.2.1 Entering pH/temperature setup mode (page 30).

2. Use /MI key to scroll to program pH Resol. Setup: P1.1. See

Figure 83.

4. Press >/CAL to toggle between 0.01 and 0.001. The resolution selected will flash. See Figure 84. mode. Press ∆ /MI to continue to the next setup program, or press ∇ /MR to go to the previous program. Press EXIT to return to the pH measurement mode.

10.2.4 Temperature unit setup program P1.2

Use this program to select temperature measurement unit (°C or

°F).

1. Enter pH/Temperature setup mode as described in steps 1-4 in 10.2.1 Entering pH/temperature setup mode (page 30).

2. Use /MI key to scroll to program Temp Unit Setup: P1.2. See

Figure 85.

3. Press unit selected will flash. See Figure 86.

ENTER to confirm selection and return to the setup mode. Press ∆ /MI to continue to the next setup program, or press ∇ /MR to go to the previous program. Press EXIT to return to the pH measurement mode.

Mode


pH Resol. Setup: P1.1


Figure 83

0.01 0.001


Figure 84

Temp Unit Setup:P1.2


Figure 85

Degree C Degree F


Figure 86

31


10.2.5 pH Measurement Alarm Setup Program P1.3

Use this program to select alarm for low and high pH measurements. pH/Temperature in 10.2.1 Entering pH/temperature setup mode (page 30).

2. Use /MI to scroll to program pH Meas. Alarm: P1.3. See

Figure 87.

ENTER to enter program pH Meas. Alarm: P1.3.

selection will flash. See Figure 88.

ENTER to confirm selection.

• If you selected On continue to step 6

• If you select Off, pressing ENTER returns to the setup mode.

Press ∆ /MI key to continue to the next setup program, or press

∇ /MR to go to the previous program. Press EXIT to return to the pH measurement mode.

pH Set Point. Key in the low pH alarm set point using the numeric keypad. If you make a mistake, use the ∆ /MI or ∇ /MR keys to highlight mistake, then re-enter. See Figure 89. Press

ENTER to confirm keyed in value.

7. The display now reads Key in High Alarm pH Set Point. Key in the high pH alarm set point using the numeric keypad. The high alarm must be set at least 1.0 pH greater than the low alarm. If you make a mistake, use the ∆ /MI or ∇ /MR keys to highlight mistake, then re-enter. See Figure 90. the setup mode.

Press ∆ /MI key to continue to the next setup program, or press ∇ /MR to go to the previous program. Press EXIT to return to the pH measurement mode.

pH Meas. Alarm :P1.3

Press ENT. to Select pH Alarm On

Figure 87

Off


Figure 88

Key In Low Alarm pH Set Point:2 . 000

Figure 89

Key In High Alarm pH Set Point:14 . 000

Figure 90

32


10.2.6 pH Calibration Due Alarm Setup program P1.4

Use this program to set a reminder when the next calibration is due.

Choose from 1 to 365 days from last calibration.

1. Enter pH/Temperature setup mode as described in steps 1-4 in

10.2.1 Entering pH/temperature setup mode (page 30).

2. Use /MI to scroll to program pHCalDue Alarm: P1.4. See

Figure 91. selection will flash. See Figure 92.

• If you selected On, continue to step 6


Press ∆ /MI to continue to the next setup program, or press ∇ /MR to go to the previous program. Press EXIT to return to the pH measurement mode.

6. If you selected On in step 5, the display reads Key in Cal Due

Period (1-365 days) =. Key number of days using the numeric keypad. If you make a mistake, use the ∆ /MI or ∇ /MR keys to highlight mistake, then re-enter. See Figure 93.

7. Press ENTER to confirm number of days to next calibration, screen flashes Sys Updating, Please wait... and returns to the setup mode. Press ∆ /MI key to continue to the next setup program, or press ∇ /MR to go to the previous program. Press

EXIT to return to the pH measurement mode.

pHCalDue Alarm : P1.4

Press ENT.

to Select

Figure 91

Cal Alarm Due: On Off


Figure 92

Keyin Cal Due Period

(1-365 days) = 1

Figure 93

33


10.2.7 Stability Setup Program P1.5

Use this program to turn on or off the pH stability indicator and to set level of stability (low, medium or high).

Stability definitions

High stability: reading is stabilized quickly, but reading is less accurate.

Medium stability: reading stability is averaged between high and low stability.

Low stability: reading is stabilized slowly, but guarantees high accuracy

1. Enter pH/Temperature setup mode as described in steps 1-

4 in 10.2.1 Entering pH/temperature setup mode (page 30).

∆ /MI to scroll to program Stability Setup: P1.5.

See

Figure 94. and Off. The selection will flash. See Figure 95.

• If you selected On, continue to step 6.


Press ∆ /MI to continue to the next setup program, or press

∇ /MR to go to the previous program. Press EXIT to return to the pH measurement mode.

6. If you selected On in step 5, the display now reads Degree

of Stability: Low Medium High. Press >/CAL to toggle between Low, Medium and High. The selection will flash.

See Figure 96.


Mode

Stability Setup : P1.5


Figure 94

pH Stable Criteria

On Off

Figure 95

Degree of Stability

Low Medium High

Figure 96

34


10.2.8 View pH calibration data setup program P1.6

Use this program to view the following:

• Last pH calibration date/time

• pH buffer set selected

• pH calibration temperature and temperature compensation

• pH offset value

• pH slopes (from acid to alkaline)

1. Enter pH/Temperature setup mode as described in steps 1-4 in 10.2.1 Entering pH/temperature setup mode (page 30).

2. Use /MI to scroll to program pH Cal Data: P1.6. See Figure

97. screen in pH Cal Data: P1.6 is the pH Cal Date/Time. See

Figure 98. shows current buffer set and calibration points. See Figure 99.

ENTER to proceed to the third screen. This screen shows calibration temperature and temperature compensation mode. See Figure 100. shows current pH offset value in mV. See Figure 101. shows current acid slope 1 and 2. See Figure 102. shows current acid slope 2 and alkaline slope 1.—See Figure

103. shows current alkaline slope 1 and 2.—See Figure 104.

10. Press ENTER to return to the setup mode. Press ∆ /MI to continue to the next setup program, or press ∇ /MR to go to the previous program. Press EXIT to return to the pH measurement mode.

Note: While viewing calibration data, you may press EXIT at any time to return to the setup mode.

pH Cal Data :P1.6


Figure 97

pH Cal Date / Time

Jan 22 2002 09:01:46

Figure 98

USA: 1.680 4.010

7.000 10.010 12.450

Figure 99

Compensation = ATC

Figure 100

pH Offset = 0.2 mV

Figure 101

Acid Slope1 = 100.0 %


Figure 102


Alk. Slope1 = 99.7 %

Figure 103



Figure 104

35


pH Cal Reset :P1.7


Figure 105

pH Reset: Yes No


Figure 106

pH being Reset

Please wait. . .

Figure 107

Reset Aborted

Figure 108

10.2.9 pH calibration data reset setup program P1.7

Use this program to erase all pH calibration data.

1. Enter pH/Temperature setup mode as described in steps 1-4 in

Section 10.2.1 Entering pH/temperature setup mode (page 30).

2. Press /MI to scroll to program pH Cal Reset: P1.7. See

Figure 105.

3. Press selection will flash. See Figure 106.


• If you selected Yes, the screen flashes pH being Reset,

Please wait... See Figure 107. The meter then returns to setup mode.

• If you select No, the screen flashes Reset Aborted and then returns to the setup mode. See Figure 108.

This is the last pH setup program. Press ∇ /MR to go to the previous program. Press ∆ /MI to go back to the first pH setup program. Press

EXIT to return to the pH measurement mode.

36


10.3 mV setup mode

10.3.1 Entering mV setup mode

1. Turn the meter ON. If the meter is not in the mV measurement mode, press EXIT and use >/CAL to select mV. The mode selected will flash. Press ENTER to confirm selection. Their meter is now in mV measurement mode.

Setup Mode Activated, Please wait... See Figure 109.

Figure 110. Press ENTER to enter mV setup mode. You are now in the mV setup mode.

4. The first setup program in mV mode is mV Meas. Alarm: P2.0.

See Figure 111. If you want to skip to another program, use the ∆ /MI and ∇ /MR keys to scroll to the desired program.

5. To exit the setup mode at anytime, press EXIT. The meter returns to the mV measurement mode.




Please wait. . .

Figure 109

Setup: mV Meter


Figure 110

mV Meas. Alarm :P2.0


Figure 111

37


10.3.2 mV measurement alarm setup program P2.0

Use this program to select alarm for low and high mV measurements.

1. Enter mV setup mode as described in steps 1-4 in Section

10.3.1 Entering mV setup mode (page 37). The first setup mode is mV Meas. Alarm: P2.0. See Figure 112.

2. Press ENTER to enter program mV Meas. Alarm: P2.0.

The selection will flash. See Figure 113.



To continue to the next setup program, press ∆ /MI.

To continue to the previous program, press ∇ /MR.

Press EXIT to return to the mV measurement mode.

5. If you selected On in step 4, the display now reads Key in Low

Alarm mV Set Point. Key in the low mV alarm set point using the numeric keypad, using the “-” key for negative numbers.

See Figure 114. If you make a mistake, use the ∆ /MI or ∇ /MR to highlight mistake, then re-enter.

Press ENTER to confirm value.

6. The display now reads Key in High Alarm mV Set Point. The high alarm setting must be at least 100.0 mV greater than low alarm. Key in the high mV alarm set point using the numeric keypad, using the “-” key for negative numbers. See Figure 115.

If you make a mistake, use the ∆ /MI or ∇ /MR to highlight mistake, then re-enter. Press ENTER to confirm value. flashes Sys Updating, Please wait... and returns to the setup mode. To continue to the next setup program, press ∆ /MI. To continue to the previous program, press ∇ /MR. Press EXIT to return to mV measurement mode.

8. Setup

mV Meas. Alarm :P2.0


Figure 112

mV Alarm On Off


Figure 113

Key In Low Alarm mV Set Point:-1550.0

Figure 1 14

Key In High Alarm mV Set Point:1550.0

Figure 115

38


10.3.3 mV calibration due alarm setup program P2.1

Use this program to set a reminder when the next calibration is due. Choose from 1 to 365 days from last calibration.


10.3.1 Entering mV setup mode (page 37).

2. Use /MI key to scroll to program mVCalDue Alarm: P2.1.

See Figure 116.





∇ /MR to go to the previous program. Press EXIT to return to mV measurement mode.

6. If you selected On in step 5, the display reads Key in Cal

Due Period (1-365 days) =. Key number of days using the numeric keypad. If you make a mistake, use the ∆ /MI or

∇ /MR keys to highlight mistake, then re-enter.

See Figure 118. screen flashes Sys Updating, Please wait... and returns to the setup mode.



mVCalDue Alarm :P2.1


Figure 116

Cal Alarm Due On Off


Figure 117


(1-365 days) = 1

Figure 118

39

Instruction Manual

10.3.4 Stability setup program P2.2

Use this program to turn on or off the mV stability indicator and to set level of stability (low, medium or high).


High stability: reading is stabilized quickly, but reading is less accurate.

Medium stability: reading stability is averaged between high and low stability.

Low stability: reading is stabilized slowly, but guarantees high accuracy



2. Use /MI key to scroll to program Stability Setup: P2.2. See

Figure 119.

Off. The selection will flash. See Figure 120.



Press ∆ /MI key to continue to the next setup program, or press ∇ /MR to go to the previous program. Press EXIT to return to the mV measurement mode.

6. If you selected On in step 5, the display now reads Degree of

Stability: Low Medium High. Press >/CAL to toggle between

Low, Medium and High. The selection will flash.

See Figure 121.





Figure 119

mV Stable Criteria

On Off

Figure 120

Degree of Stability

Low Medium High

Figure 121

40


10.3.5 View mV calibration data setup program P2.3


• Last mV calibration date/time

• mV offset value



2. Use /MI to scroll to program mV Cal Data: P2.3. See Figure

122.

ENTER to enter program mV Cal Data: P2.3. The first screen in mV Cal Data: P2.3. is the mV Cal Date/Time. See

Figure 123. shows current mV offset value. See Figure 124.



Note: While viewing calibration data, you may press EXIT at any time to return to the setup mode.

mV Cal Data :P2.3


Figure 122

mV Cal Date/ Time

Jan 22 2002 11:55:08

Figure 123

mV Offset = 3.2 mV

Figure 124

41


10.3.6 mV calibration data reset setup program P2.4

Use this program to erase all mV calibration data.



2. Use /MI key to scroll to program mV Cal Reset: P2.4.

See Figure 125.


5. Press

• If you selected Yes, the screen flashes mV being Reset,

Please wait... See Figure 127. The meter then returns to setup mode.

• If you select No, the screen flashes Reset Aborted and then returns to the setup mode. See Figure 128. This is the last mV setup program. Press ∇ /MR to go to the previous program. Press ∆ /MI to go back to the first mV setup program. Press EXIT to return to mV measurement mode.

mV Cal Reset :P2.4


Figure 125

mV Reset: Yes No


Figure 126

mV being Reset

Please wait. . .

Figure 127

Reset Aborted

Figure 128

42


10.4 Ion setup mode (pH 2100 meter only)

10.4.1 Entering ion setup mode mode, press EXIT and use >/CAL key to select ion. The mode selected will flash. Press ENTER to confirm selection. The meter is now in Ion measurement mode.

Setup Mode Activated, Please wait... See Figure 129. selected will flash. Press ENTER to enter Ion setup mode. You are now in the Ion setup mode.

4. The first setup program in Ion mode is Ion Unit Setup: P3.0.


5. To exit the setup mode at anytime, press EXIT. The meter returns to the ion measurement mode.



10.4.2 Ion unit setup mode P3.0

Use this program to select Ion measurement units: ppm, ppt, mg/L, g/L, mmol/L, or mol/L

1. Enter ion setup mode as described in above in Section 10.4.1

Entering ion setup mode. The first setup mode is Ion Unit

Setup: P3.0 See Figure 132.

>/CAL key to toggle between ppm, ppt, mg/l, g/l, mmol/l or

mol/l. The unit selected will flash. See Figure 133.

ENTER to confirm selection and return to the setup mode. To continue to the next setup program, press ∆ /MI. To continue to the previous program press ∇ /MR. Press EXIT to return to the ion measurement mode.


Please wait. . .

Figure 129

Setup: Ion Meter


Figure 130

Ion Unit Setup : P3.0


Figure 131

Ion Unit Setup :P3.0


Figure 132

ppm ppt mg/1 g/l mmol/l mol/l

Figure 133

43


10.4.3 Ion measurement alarm setup program P3.1

Use this program to select alarm for low and high ion measurements.

1. Enter ion setup mode as described in steps 1-4 in Section 10.4.1

Entering ion setup mode (page 43).

2. Use /MI key to scroll to program Ion Meas. Alarm: P3.1. See

Figure 134. selection will flash. See Figure 135.

4. Press



To continue to the next setup program, press ∆ /MI.

To continue to the previous program, press ∇ /MR.

Press EXIT to return to the ion measurement mode.

5. If you selected On in step 4, the display now reads Key in Low

Alarm Ion Set Point. Key in the low ion alarm set point using the numeric keypad. See Figure 136. If you make a mistake, use the ∆ /MI or ∇ /MR to highlight mistake, then re-enter. Press

ENTER to confirm value.

6. The display now reads Key in High Alarm Ion Set Point. The high alarm setting must be at least one-half decade greater than the low alarm. Key in the high ion alarm set point using the numeric keypad. See Figure 137. If you make a mistake, use the ∆ /MI or ∇ /MR to highlight mistake, then re-enter. Press

ENTER to confirm value. flashes Sys Updating, Please wait... and returns to the setup mode. To continue to the next setup program, press ∆ /MI. To continue to the previous program, press ∇ /MR. Press EXIT to return to mV measurement mode.

Ion Meas. Alarm :P3.1


Figure 134

Ion Alarm On Off


Figure 135

Key In Low Alarm

Ion Set Point : 0.001

Figure 136

Key In High Alarm

Ion Set Point:19999

Figure 137

44


10.4.4 Ion calibration due alarm setup program P3.2

Use this program to set a reminder when the next calibration is due.

Choose from 1 to 365 days from last calibration.

1. Enter ion setup mode as described in steps 1-4 in Section 10.4.1

Entering ion setup mode (page 43).

∆ /MI key to scroll to program IonCalDue Alarm: P3.2.

See

Figure 138.

3. Press


• If you selected On, continue to step 6.

• If you select Off, pressing ENTER returns to the setup mode.



6. If you selected On in step 5, the display reads Key in Cal Due

Period (1-365 days) = 1. Key number of days using the numeric keypad. If you make a mistake, use ∆ /MI or ∇ /MR keys to highlight mistake, then re-enter. See Figure 140. screen flashes Sys Updating, Please wait… and returns to the setup mode. Press ∆ /MI key to continue to the next setup program, or press ∇ /MR to go to the previous program. Press

EXIT to return to mV measurement mode.

Cal Alarm Due: On Off


Figure 139

IonCalDue Alarm :P3.2


Figure 138


(1-365 days) = 1

Figure 140

45

Instruction Manual

10.4.5 Stability setup program P3.3

Use this program to turn on or off the ion stability indicator and to set level of stability (low, medium or high).


High stability:

Reading is stabilized quickly, but reading is less accurate.

Medium stability:

Reading stability is averaged between high and low stability.

Low stability:

Reading is stabilized slowly, but guarantees high accuracy.

1. Enter ion setup mode as described in steps 1-4 in Section

10.4.1 Entering ion setup mode (page 43).

2. Use /MI key to scroll to program Stability Setup: P3.3 See

Figure 141. and Off. The selection will flash. See Figure 142.




Press ∆ /MI key to continue to the next setup program, or

Press ∇ /MR to go to the previous program. Press EXIT to return to the ion measurement mode.

6. If you selected On in step 5, the display now reads Degree of

Stability: Low Medium High. . Press >/CAL to toggle between

Low, Medium and High. The selection will flash. See Figure

143.

ENTER to confirm selection and return to the setup mode. Press ∆ /MI key to continue to the next setup program, or press ∇ /MR to go to the previous program. Press EXIT to return to the ion measurement mode.




Figure 141

Ion Stable Criteria

On Off

Figure 142

Degree of Stability

Low Medium High

Figure 143

46


10.4.6 Ion mode setup program P3.4

Use this program to select high or low ion resolution mode. High resolution has ±500 mV value, low has ±1850 mV value.



2. Use /MI key to scroll to program Ion Mode Setup: P3.4. See

Figure 144.

3. Press

4. Press >/CAL to toggle between High or Low. The unit selected will flash. See Figure 145. mode.

6. Press /MI key to continue to the next setup program, or press ∇ /MR to go to the previous program. Press EXIT to return to the ion measurement mode.

Ion Mode Setup : P3.4


Figure 144

Resolution: High Low


Figure 145

47


10.4.7 View ion calibration data setup program P3.5


• Last ion calibration date/time

• Calibration points with absolute mV values

• Ion slope values



2. Use /MI key to scroll to program Ion Cal Data: P3.5.

See Figure 146. screen in Ion Cal Data: P3.5. is the Ion Cal Date/Time.

See Figure 147.

ENTER to proceed to the second screen, showing 1 st and 2 nd

ion calibration points and corresponding absolute mV value. See Figure 148.

ENTER to proceed to the third screen, showing 2 nd and

3 rd

ion calibration points and corresponding absolute mV value.

See Figure 149.

6. Press rd and

4 th

ion calibration points and corresponding absolute mV value.

See Figure 150.

ENTER to proceed to the fifth screen, showing 4 th

and 5 th ion calibration points and corresponding absolute mV value.

See Figure 151.

Slope 1 and 2 mV value. See Figure 152.

ENTER to proceed to the seventh screen, showing Ion


10. Press ENTER to proceed to the eighth screen, showing Ion


Press ∆ /MI key to continue to the next setup program, or Press

∇ /MR to go to the previous program. Press EXIT to return to ion measurement mode.

NOTE: While viewing calibration data, you may press EXIT at any time to return to the setup mode.

Ion Cal Data :P3.5


Figure 146

Ion Cal Date/ Time

Jan 22 2002 14:55:38

Figure 147

1st :0.001

0.6 mV

2nd:0.010 50.1 mV

Figure 148

2nd:0.010

50.1 mV

Figure 149

3rd:0.100

100.8 mV

4th: 1 .00

149.4 mV

Figure 150

4th: 1 . 00 149.4 mV

5th: 10 . 0 201.0 mV

Figure 151

Ion Slope1 = 49.5 mV


Figure 152



Figure 153



Figure 154

48


10.4.8 Ion calibration data reset setup program P3.6

Use this program to erase all ion calibration data.



2. Use /MI key to scroll to program Ion Cal Reset: P3.6. See

Figure 155.

No. The selection will flash. See Figure 156.

• If you selected Yes, the screen flashes Ion being

Reset, Please wait... See Figure 157. The meter then returns to setup mode.

• If then returns to the setup mode. See Figure 158.

This is the last ion setup program. Press ∇ /MR to go to the previous program. Press ∆ /MI to go back to the first ion setup program. Press EXIT to return to mV measurement mode.

Mode

Ion Cal Reset :P3.6


Figure 155

Ion Reset: Yes No


Figure 156

Ion being Reset

Please wait. . .

Figure 157

Reset Aborted

Figure 158

49


10.5 Meter general configuration setup mode

10.5.1 Entering meter general setup mode

1. Turn the meter ON. The meter setup mode can be entered from any measurement mode—pH, mV or ion (pH 2100 meter only).

Setup Mode Activated, Please wait. ..See Figure 159.

See Figure 160, 161 and 162. Press ENTER to enter Meter setup mode. You are now in the Meter setup mode.

4. The first setup program in Ion mode is Date/Time Setup: P4.0.


5. To exit the setup mode at anytime, press EXIT. The meter returns to the measurement mode that it was in prior to entering meter setup mode.

NOTE: To exit the setup mode at anytime without confirming changes, press EXIT. If you have made any changes to any programs and press EXIT, these changes will be confirmed. To reset meter to default factory settings, see setup program Meter


10.5.2 Date/time setup mode P4.0

Use this program to set the meter date and time.

1. Enter the Meter setup mode as described above in Section

10.5.1 Entering meter general setup mode (Pg 50). The first setup mode is Date/Time Setup: P4.0. See Figure 163.

3. Key in the Date, Month, Year, Hr and Min using the numeric keypad. Use the >/CAL key or the ENTER key to toggle to each field. If you make a mistake keying the value, use the ∆ /MI and

∇ /MR keys to highlight mistake, then re-enter.

See Figure 164.

4. After keying in a value for the last field (Min), press ENTER to confirm. The screen flashes Clock Updating, Please wait. . See

Figure 165. The clock then flashes the date and time.

See Figure 166.


∇ /MR to go to the previous program. Press EXIT to return to the measurement mode you were in prior to entering meter setup mode.


Please wait. . .

Figure 159

Setup:pH/Temp Meter


Figure 160

Setup: mV Meter


Figure 161

Setup: Ion Meter


Figure 162

Date/Time Setup:P4.0


Clock Updating

Please wait. . .

Figure 163

Date:23 Month:01

Year:02 Hr:8 Min:07

Figure 164

Figure 165

Date Time

Jan 23 2002 08”07:31

Figure 166

50


10.5.3 Backlight setup mode P4.1

Use this program to turn backlight on or off and set duration time

(0.1 to 10 minutes).

1. Enter meter setup mode as described in steps 1-4 in Section

10.5.1 Entering meter setup mode (page 50).

2. Use /MI key to scroll to program Backlight Setup: P4.1.

See Figure 167.

3. Press


BackLight Setup:P4.1


Figure 167

BackLight On Off


Figure 168



Key BL ON Period

( 0 . 1-10 . 0 min) = 2.00


∇ /MR to go to the previous program. Press EXIT to return to measurement mode.

Figure 169

6. If you selected On in step 5, the display now reads Key BL On

Period, (0.1-10.0 min) =2.00. See Figure 169. Key in the backlight on period using the numeric keypad. If you make a mistake, use ∆ /MI or ∇ MR keys to highlight mistake, then reenter .

ENTER to confirm selection. The screen flashes Sys

Updating... Please wait... and then returns to the setup mode.

Press ∆ /MI key to continue to the next setup program, or press ∇ /MR to go to the previous program. Press EXIT to return to measurement mode.

51


10.5.4 Data log setup mode P4.2

Use this program select automatic or manual data logging.

Automatic data logging can be set at timed intervals from 10 seconds to 23 hours, 59 minutes, 59 seconds.



2. Use /MI key to scroll to program Data Log Setup: P4.2.

See Figure 170.

4. Press >/CAL key to toggle between Data Log Auto and

Manual. The selection will flash. See Figure 171.

5. Press

• If you selected Auto, continue to step 6.

• If you select Manual, pressing ENTER returns to the setup mode. Press ∆ /MI key to continue to the next setup program, or press ∇ /MR to go to the previous program.

Press EXIT to return to measurement mode.

6. If you selected Auto in step 5, the display now reads Auto

DataLog Period Hr: Min: Sec : Key in the time period

(minimum of 10 seconds to maximum of 23 hours, 59 minutes,

59 seconds) using the numeric keypad. If you make a mistake, use ∆ /MI or ∇ /MR keys to highlight mistake, then re-enter.

See Figure 172.

Updating... Please wait... and then returns to the setup mode.

Press ∆ /MI key to continue to the next setup program, or press ∇ /MR to go to the previous program. Press EXIT to return to measurement mode.

10.5.5 Memory recall setup mode P4.3

Use this program to select automatic or manual memory recall. See page 24 for more information on memory recall.



2. Use /MI key to scroll to program MemRecall Setup: P4.3.

See Figure 173.

3. Press

Auto and Manual. The selection will flash. See Figure 174.

ENTER to confirm selection and return to the setup mode. Press ∆ /MI key to continue to the next setup program, or press ∇ /MR to go to the previous program. Press EXIT to return to measurement mode.

Data Log Setup :P4.2


Figure 170

Data Log:Auto Manual


Figure 171

Auto DataLog Period

Hr:1 Min:30 Sec:0

Figure 172

MemRecall Setup:P4.3


Figure 173

Memory Recall Mode

Auto Manual

Figure 174

52


10.5.6 Communication setup mode P4.4

Use this program to set parameters of serial communication.



2. Use /MI key to scroll to program Tx/Rx Parameter: P4.4.

See Figure 175.

19200. The selection will flash. See Figure 176. Press ENTER to confirm selection and go to the next setup screen.

The selection will flash. See Figure 177. Press ENTER to confirm selection and go to the next setup screen.

Even. The selection will flash. See Figure 178.

ENTER to confirm selection and return to the setup mode.



10.5.7 Data transfer setup mode P4.5

1. This program lets you select what data is sent to your printer or computer.


10.5.1Entering meter setup mode (page 50).

3. Use /MI key to scroll to program Data Transfer: P4.5. See

Figure 179.

ENTER to enter program Data Transfer: P4.5. and Memory. .The selection will flash.

See Figure 180.

ENTER to confirm selection and return to the setup mode.



Tx/Rx Parameter:P4.4


Baud Rate

Figure 175

4800 9600 19200

Figure 176

Stop Bit: One Two

Figure 177

Parity Bit:

None Odd Even

Figure 178

Data Transfer :P4.5


Figure 179

Data send to printer

Current Memory

Figure 180

53


10.5.8 Memory clear setup mode P4.6

Clears all pH, mV and Ion (pH2100 only) memory points stored in memory.



2. Use /MI key to scroll to program Mem Clear Setup: P4.6.

See Figure 181.

3. Press


• If you select Yes, the screen flashes Memory being

Cleared, Please wait... See Figure 183. The meter then returns to the setup mode.

• If you select No, the meter returns to the setup mode.

Press ∆ /MI to continue to the next setup program, or press ∇ /MR to go to the previous program. Press EXIT to return to measurement mode.

10.5.9 Meter reset setup mode P4.7

Resets the meter to factory default settings:

• pH/mV/Ion* calibration data is erased

• Manual temperature compensation is set to 25.0°C

• pH/mV/Ion* measurement alarm is off

• pH/mV/Ion* calibration due alarm is off

• Stability indicator is turned on with low stability setting

• Data logging and memory recall has manual setting

• Backlight is on with 2.0 minute duration

• Memory is cleared

*Ion features on the CyberScan pH2100 meter only



2. Use /MI key to scroll to program Meter Reset: P4.7.

See Figure 184.



• If you selected Yes, the screen flashes Meter being

Reset, Please wait...See Figure 186. The meter then returns to measurement mode.

• If you select No, the screen flashes Reset Aborted. See

Figure 187. The meter then returns to the measurement mode.

Mem Clear Setup :P4.6


Figure 181

Memory Clear:Yes No


Figure 182

Memory being Cleared

Please wait. . .

Figure 183

Meter Reset :P4.7


Figure 184

Meter Reset: Yes No


Figure 185

Meter being Reset

Please wait. . .

Figure 186

Reset Aborted

Figure 187

54


11 ELECTRODE CARE

11.1 Electrode Activation

DO NOT touch or rub the glass bulb. If you follow the storage and maintenance procedure, you can use your electrode immediately. If the electrode responds sluggishly or drifts, the bulb may be dehydrated. Immerse the electrode in an ideal storage solution such as electrode storage solution or pH 4 buffer solution for 1-2 hours to hydrate it. See Storing

pH/ORP electrodes below.

If this procedure does not hydrate the electrode, reactivate or replace it.

Use 2 or 3 point calibration to test your electrode performance. If you do not get good readings, use a different pH electrode to confirm the meter is working properly. If the results are still not satisfactory, consult your distributor/dealer.

11.2 Electrode Maintenance

pH electrodes are susceptible to dirt, dehydration and contamination. Clean them regularly depending on the extent and condition of use.

11.3 Storing pH/ORP electrodes

For best results, always keep the bulb wet, preferably in pH storage solution. Other pH buffers or tap water are also acceptable. Do not store in de-ionized water. Eutech Instruments/ Oakton Instruments offers a complete range of electrode storage and cleaning solutions.

After Use

1. After each series of measurements, wash the electrode and reference junction in de-ionized water.

2. If using a refillable electrode, close the refilling hole by placing its rubber sleeve or stopper plug into its position.

3. Store the electrode as mentioned above.

Electrode Cleaning

Electrodes that are mechanically intact can often be restored to normal performance by one or a combination of the following options.

Some suggestions for: a. Salt deposits which are normal on all electrodes

Dissolve the deposit by immersing the electrode in tap water for 10 to 15 minutes. Thoroughly rinse with de-ionized water. b. General dirt and protein coatings

Soak the electrode for several hours in the general-purpose electrode cleaning solutions. Rinse in de-ionized or tap water.

Wash the electrode pH bulb in a little dish washing detergent and water. Rinse the electrode tip with de-ionized water. d. Clogged reference junction.

Heat a dilute 1% KCl solution or pH 4.01 buffer solution to 60-80°C. Place the sensing portion of the pH electrode into the heated KCl solution for approximately 30 minutes. Allow the electrode to cool while immersed in some unheated KCl solution or pH 4.01 buffer solution. Rinse with deionized water.

55


12 RS 232 COMMUNICATION

This meter will send data to a printer and computer through the RS-232 port located on the back panel of the meter.

See Figure 193. This meter uses a 9 pin serial connection for RS-232 communication.

12.1 Using with printer

If you are going to use your meter to send data to a printer, you must first configure your meter to match the settings for your printer (consult printer manual for proper printer operation). See Meter Setup mode P4.4 Tx/Rx Parameter (page

53) to set baud rate, stop bit and parity for your meter.

12.1.1 Sending data to printer

You can either send current data or data stored in memory to your printer. See Meter Setup mode Program P4.5 Data

Transfer (page 53) to select which data is sent to your printer.

1. Connect your meter to printer (consult printer manual for cable connections). Use a 9 pin serial connection for pH 1100 and pH 2100).

2. To send data to your printer, press the PRINT key on the meter.

12.2 Using with computer

Use OAKTON

®

RS-232 cable 35615-09 to connect your meter to a computer. Refer to enclosed software disc for instructions on how to use software with your meter.

56


13 ADDITIONAL INFORMATION

13.1 pH and Temperature

The pH electrode is affected by temperature changes. Automatic Temperature Compensation (ATC) compensates for these 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.

13.2 pH Buffer Calibration Solution

You can use standard buffer solutions to calibrate a pH meter before you measure the pH of a sample. Calibration solutions serve as basis of comparison between measurements. The most common standard buffers are pH 4.01, pH 7.00 and pH 10.01.

For 1-point calibration, use a standard buffer of pH 7.00 or 6.86, or a standard or custom 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 example: in acidic samples, use standard buffers such as pH 7.00 and pH 4.01; in basic samples, use standards such as pH 7.00 and pH 10.01.

Use multi-point calibration when the sample pH is completely unknown or for best accuracy over the entire pH range.

Contact your distributor for information on pH buffer and calibration solutions.

13.3 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°C.

Temperature (°C)

USA Buffer NIST Buffer

1.68 4.01 7.00 10.01 12.45 1.68 4.01 6.86 9.18 12.45

1.67 4.01 7.12 10.32 13.43 1.67 4.01 6.98 9.46 13.43

1.67 4.01 7.09 10.25 13.21 1.67 4.01 6.95 9.40 13.21

1.67 4.01 7.06 10.18 13.00 1.67 4.01 6.92 9.33 13.00

1.67 4.00 7.04 10.12 12.81 1.67 4.00 6.90 9.28 12.81

1.68 4.00 7.02 10.06 12.63 1.68 4.00 6.87 9.23 12.63

1.68 4.01 7.00 10.01 12.45 1.68 4.01 6.86 9.18 12.45

55

60

65

70

75

80

85

90

95

100

0

5

10

15

20

25

30

35

40

45

50

105

57


14 SUMMARY OF DEFAULT SETTINGS / OPTIONS

Program

P1.0

P1.1

P1.2

P1.3

P1.4

P1.5

P1.6

P1.7

P3.0

P3.1

P3.2

P3.3

P3.4

P3.5

P3.6

P4.1

P4.2

P4.3

P4.4

P2.0

P2.1

P2.2

P2.3

P2.4

P4.6

P4.7

Setup Menus pH Buffer Setup pH Resolution Setup

Temperature Unit Setup pH Measurement Alarm pH Calibration Due Alarm

Stability Setup pH Cal Data pH Cal Reset mV Measurement Alarm mV Calibration Due Alarm

Stability Setup mV Cal Data mV Cal Reset

Ion Unit Setup

Ion Measurement Alarm

Ion Calibration Due Alarm

Stability Setup

Ion Mode Setup

Ion Cal Data

Ion Cal Reset

Backlight Setup

Data Log Setup

Memory Recall Setup

Tx/Rx Parameter

Memory Clear Setup

Meter Reset

Options pH SETUP Menu

USA, NIST, Bf1, Bf2, Custom

0.01, 0.001 o

C, o

F

On, Off

On, Off

On, Off

-

Yes, No

mV SETUP Menu

On, Off

On, Off

On, Off

-

Yes, No

Ion SETUP Menu ppm, ppt, mg/l, g/l, mmol/l, mol/l

On, Off

On, Off

On, Off

High, Low

-

Yes, No

Meter SETUP Menu

-

On, Off

Auto, Manual

Auto, Manual

Baud Rate: 4800, 9600, 19200, 38400

Stop Bit: 0ne, Two

Parity Bit: None, Odd, Even

Current, Memory

Yes, No

Yes, No

Factory Defaults

USA

0..001 o

C

Off

Off

On (Low)

-

No

Off

Off

On (Low)

-

No ppm

Off

Off

On (Low)

High

-

No

-

On

Manual

Manual

9600

One

Even

Current

No

No

58

CyberScan pH1100/ 2100

15 TROUBLESHOOTING & ERROR MESSAGES

TROUBLESHOOTING

Power ON but no display

Unstable Reading

Slow response

ERROR MESSAGES

LCD Display

Error:

EEPROM Read Error

Error:

EEPROM write Error

Error:

DTR is set too high

Error:

Communication error

Error:

Buffer Overflow

Error: pH Offset Error

Error: pH Slope Error

Error:

Ion Slope Error

(pH 2100 meter only)

Error: mV Offset too large

Error:

Out of Range

Error:

ATC offset too much

Error:

Too much offset@7pH

Error:

Slope out:75%-105%

Error: Pts too close

Or slope diff. sign

AC adapter not connected properly

Electrode submersion in sample is insufficient

Broken electrode

External noise causing instability in reading.

Dirty electrode

Dirty electrode

Solution

Connect AC adapter properly

Place electrode deeper into sample

Replace electrode

Remove or switch off interfering motor

Clean Electrode. Reactivate if necessary

Clean Electrode. Reactivate if necessary

Indicates

Memory write error

Memory checksum error

DTR line is disconnected

Frame/parity errors

Received buffer overflowing pH offset too much

Incorrect pH slope

Incorrect ion slope

Offset too much

Out of Range

Offset of temp. probe too much

Offset too much

Incorrect pH slope

Incorrect slope alignment

Cause

Unit is too old (> 10 years)

Hardware failure

Hardware fault pH offset should not exceed

±1 pH from the display pH slope is out of allowable limit

Average ion slope is not within 10mV-75mV/decade

Value input is not within

±150.0mV from the display

Value input exceeds the specified range

Temp. calibration offset is not within ±5 o C (or ±9 o F) pH offset should not exceed

±1 pH from the display

(custom pH buffer) pH slope is not within 75% to

105% (custom pH buffer)

Slope is not negative or cal.

Points are not ±1 pH apart

(custom pH buffer)

Solution

Turn meter off and return to authorized distributor if necessary





Check electrode condition

Make sure buffer is fresh and correct

Recalibrate meter



Recalibrate meter



Recalibrate meter

Recalibrate meter

Re-enter value

Re-enter value

Re-enter value

Re-enter value

Re-enter value

59

CyberScan pH1100/ 2100

16 SPECIFICATIONS

pH

Range -1.000 to 14.000 pH

Resolution 0.001 / 0.01 pH (user-selectable)

Accuracy ± 0.002 / ±0.01 pH

Calibration 1 to 5 points (standard buffers); first point must be pH 7.000, 6.860 (offset)

Min. 2 points and Max. 5 points for custom entry pH Buffer Set Options 1 - USA: pH 1.68, 4.01, 7.00, 10.01, 12.45

2- NIST: pH 1.68, 4.01, 6.86, 9.18, 12.45

3- Bf1: pH 1.68, 4.01, 6.86, 10.01, 12.45

4- Bf2: pH 1.68, 4.01, 7.00, 9.18, 12.45

5 - Custom entry buffer calibration mV/ Relative mV

Range - 1850.0 to 1850.0 mV

Temperature

Accuracy ± 0.2 mV

Calibration mV offset up to ± 150 mV

Range -5.0 to 105.0 o C; 23.0 to 221.0 o F

C / o

F

Accuracy ± 0.3 o C / 0.5 o F

Calibration Manual Temperature compensation: adjust from -0.5 to 105.0°C/ 23.0 to 221.0°F

Automatic Temperature compensation (ATC) offset ±5.0°C/ ±9.0°F pH 2100 meter only

Ion

Range 0.001 to 19999

Resolution (High resolution mode:

± 500.0 mV)

0.001: from 0.001 to 0.999

0.01: from 1.00 to 9.99

0.1: from 10.0 to 99.9

1: from 100 to 19999

Resolution (Low resolution mode:

± 1850.0 mV)

0.001: from 0.001 to 0.099

0.01: from 0.10 to 0.99

0.1: from 1.0 to 9.9

1: from 10 to 19999

Accuracy ± 0.5% of full scale for monovalent ions

1% of full scale for divalent ions

Calibration 2 to 5 points, First point keyed in. the rest are selected using the ¿MI and ÀMR keys

Minimum Average Slope 10 mV/ decade

Maximum Average Slope 75 mV/ decade

Inputs BNC, Phono (ATC), Reference, Ground

Output RS232C

Recorder Output ± 1800 mV, 1 mV/mV unit

Power Requirements AC/DC 9V Adapter (110 VAC/220 VAC)

Display Custom Dual LCD (1 x 4 digit, 1 x 3.5 digit, 24 annunicators)

Dimensions (L x W x H) 230 x 180 x 63 mm (meter only); 395 x 260 x 90 mm (boxed)

Weight 1.4lbs/ 850 gm (unit); 1400 gm (boxed)

60


17 ACCESSORIES

Consult your Authorized Distributors for these items and other range of specialized pH electrodes or Ion Selective

Electrodes.

Item Description Eutech Instruments

Order Code

Oakton Instruments

Order Code

EC-FG73504-01B 35801-00 Glass-body combination pH electrode (refillable) with 1m cable length and BNC connector

Epoxy-body combination double junction pH electrode with 1m cable length and BNC connector

Epoxy-body combination double junction ORP electrode with 1m cable length and BNC connector

Temperature probe (for ATC)

Meter to computer communication 1 m cable length (9-pin male to 25-pin female)

Meter to computer communication 1 m cable length (25-pin male to 25pin male)

Serial Impact Dot-matrix Micro-printer; paper-roll portable printer with 25pin female connector, with a roll of paper and 120VAC power adapter provided

Serial Impact Dot-matrix Micro-printer; paper-roll portable printer with 25pin female connector, with a roll of paper and 220VAC power adapter provided

110/120V AC/DC 9V 500mA power adapter (50/60 Hz) – 2 pin type

220/240V AC/DC 9V 500mA power adapter (50/60 Hz) – 2 pin type pH 4.01 calibration buffer (480 ml) (1 pint) pH 7.01 calibration buffer (480 ml) (1 pint) pH 10.01 calibration buffer (480 ml) (1 pint)

Protein Cleaning Solution for pH electrode (480 ml) (1 pint)

Storage Solution for pH electrode (480 ml) (1 pint) pH sachet assortment pack; 5 each of pH4.01, 7.00, 10.01 and deionized water (20 x 20 ml per box) pH 4.01 buffer sachets (20 x 20 ml per box) pH 7.00 buffer sachets (20 x 20 ml per box) pH 10.01 buffer sachets (20 x 20 ml per box)

Deionised water rinse sachets (20 x 20 ml per box)

EC-PH5-TEMB01P 35613-05

ECCA01M09F25 35615-09

ECCA01M09M25 35622-59

EC-MICROPRNTR01 35622-00

EC-MICROPRNTR02 35622-05

EC-110-ADA

EC-220-ADA

EC-BU-4BT

EC-BU-7BT

EC-BU-10BT

35621-50

35621-55

00654-00

00654-04

00654-08

EC-DPC-BT

EC-RE-005

00653-06

00653-04

EC-AST-PK 35653-04

EC-BU-4BS

EC-BU-7BS

EC-BU-10BS

EC-RIN-WT

35653-01

35653-02

35653-03

35653-00

61


18 WARRANTY

Eutech Instruments/ Oakton Instruments supplies this bench meter with a 3-year warranty and 6-month warranty for against manufacturing defects from the date of purchase. If repair or adjustment is necessary and has not been the result of abuse or misuse within the warranty period, please return, freight prepaid, and correction will be made without charge.

Out of warranty items will be repaired on a charge basis.

Exclusions to the Warranty

The warranty shall not apply to defects resulting from:

• Improper or inadequate maintenance by customer;

• Unauthorized modification or misuse;

• Operation outside of the environmental specifications of the products.

Return of Items

Authorization must be obtained from your Authorized Distributor or Customer Service Dept. before returning items for any reason. When applying for authorization, please include data regarding reason the items are to be returned.

Packing the item for repair should be done using the original packaging or material, with information about any fault identified.

Shipment damage as a result of inadequate packaging is your or your distributor’s responsibility, whoever applicable.

Note: Eutech Instruments/ Oakton Instruments reserves the rights to make improvements in design, construction, and appearance of products without notice.

62

NOTES

For more information on Eutech Instruments/ Oakton Instruments’ products, contact your nearest distributor or visit our website listed below:

Oakton Instruments

P.O Box 5136,

Vernon Hills, IL60061, USA

Fax: (1) 847-247-2984

www.4oakton.com

www.oaktoninstruments.com

Eutech Instruments Pte Ltd

Blk 55, Ayer Rajah Crescent,

#04-16/24 Singapore 139949

Tel: (65) 6778 6876

Fax: (65) 6773 0836

E-mail:

[email protected]

Web-site: www.eutechinst.com

Distributed by:

EUTECH INSTRUMENTS pH 1100 Instruction manual

Instruction Manual pH 1100/ pH 2100

Bench pH/Ion Meter

PREFACE

TABLE OF CONTENTS

1 INTRODUCTION

1.1 Introducing the Bench Meter Series

1.2 Keypad

ON/OFF

ENTER

EXIT

CAL / ¾

MODE

HOLD

SETUP

/ MI

/ MR

PRINT

Numeric Keys (0-9 & .)

- (Minus)

Connector

Function

Attention:

2.1 Back Panel Connections

2.2 Powering up and powering down

Hardware Testing. . . .

Status: Pass

Bench pH/Ion 2100

SW Rev 1.20

System Initializing

Please wait. . .

Date Time

Jan 25 2002 09:09:30

pH/Temp mV Ion

Select & Press ENTER

System Shutting Down

Please wait. . .

3

H CALIBRATION & MEASUREMENT

Selectable buffer sets:

Jan 18 2002 08:46:25

Jan 18 2002 08:46:25

pH/Temp mV Ion

Select & Press ENTER

Jan 18 2002 08:46:25

Cal Mode Activated

Please wait. . .

NOTE:

7.001pH 25.4 C ATC

Auto Buf Scan: 7.000

10.010

°

2 Point Cal Done

Error: Cal Aborted

*

DO NOT REUSE SOLUTIONS AFTER CALIBRATION.

1

Point Cal Done *

Error: Cal Aborted

NOTE:

DO NOT REUSE SOLUTIONS AFTER CALIBRATION.

Error :

*

Error :

*

Error :

Too much Offset @7

Error :

Slope out:75% - 105%

Error :Pts too close

Or slope diff. sign

°

Jan 18 2002 08:46:25

pH/Temp mV Ion

Select & Press ENTER

°

Jan 18 2002 08:46:25

Temperature Cal Mode

MTC Temp : 25.0 C

°