Xylem PH3110 User Manual

pH 3110

Operating manual

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pH meter

pH 3110

Accuracy when

going to press

The use of advanced technology and the high quality standard of our instruments are the result of a continuous development. This may result in differences between this operating manual and your meter. Also, we cannot guarantee that there are absolutely no errors in this manual. Therefore, we are sure you will understand that we cannot accept any legal claims resulting from the data, figures or descriptions.

Reproduction in whole - or even in part - is prohibited without the express written permission of WTW GmbH, Weilheim. Printed in Germany.

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pH 3110 Contents

pH 3110 - Contents

1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.3 Socket field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . 10

3 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.1 Scope of delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.2 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.2.1 Inserting the batteries. . . . . . . . . . . . . . . . . . . . . 13

3.2.2 Switching on the meter. . . . . . . . . . . . . . . . . . . . 14

4 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.1 General operating principles . . . . . . . . . . . . . . . . . . . . . . 15

4.1.1 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . 15

4.1.2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.2 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.2.1 Measuring the pH value . . . . . . . . . . . . . . . . . . . 17

4.2.2 Measuring the ORP . . . . . . . . . . . . . . . . . . . . . . 18

4.3 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.3.1 Calibration interval (Int.C) . . . . . . . . . . . . . . . . . 21

4.3.2 Automatic calibration (AutoCal) . . . . . . . . . . . . . 22

4.3.3 Conventional calibration (ConCal) . . . . . . . . . . . 24

4.4 Downloading calibration data . . . . . . . . . . . . . . . . . . . . . 27

4.5 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.5.1 System settings . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.5.2 Measurement settings . . . . . . . . . . . . . . . . . . . . 30

4.6 Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

4.6.1 Resetting calibration values . . . . . . . . . . . . . . . . 34

4.6.2 Resetting all meter settings . . . . . . . . . . . . . . . . 35

5 Maintenance, cleaning, disposal. . . . . . . . . . . . . . . . . 37

5.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.1.1 Replacing the batteries . . . . . . . . . . . . . . . . . . . 37

5.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.3 Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

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Contents pH 3110

5.4 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6 What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

7 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.1 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

7.2 Measuring ranges, resolution, accuracy . . . . . . . . . . . . . 44

8 Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

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pH 3110 Overview

1Overview

The compact pH 3110 precision pH meter enables you to perform pH measurements rapidly and reliably. The pH 3110 provides the maximum degree of operating comfort, reliability and measuring certainty for all applications. The proven calibration procedures and automatic stability control function (AR) support your work with the pH meter.

1 Keypad

2 Display

3 Socket field

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Overview pH 3110

pH 3110

1.1 Keypad

In this operating manual, keys are indicated by brackets <..> . The key symbol (e.g. <ENTER>) generally indicates a short keystroke (under 2 sec) in this operating manual. A long keystroke (approx. 2 sec) is indicated by the underscore behind the key symbol (e.g.

<ENTER

_>).

<On/Off>: <On/Off

<M>: <M

<CAL>: <CAL

<▲>: Increments values, scrolls

<▼>: Decrements values, scrolls

_>:

Switches the meter on/off Resets calibration data

Selects the measured parameter Opens the setting menu for calibration and measurements

Calls up the calibration procedure Displays the calibration data

<ENTER>: <ENTER

Confirms entries Opens the setting menu for system settings

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pH 3110 Overview

Status display

Sensor symbol

(calibration

evaluation)

Measured value display

Function and temperature display indicators

1.2 Display

Function display

indicators

AutoCal TEC Calibration with automatic buffer recognition

(buffer set: Technical buffers )

AutoCal DIN Calibration with automatic buffer recognition

(buffer set: DIN buffers )

ConCal Calibration with any buffers

CalError An error occurred during calibration

LoBat With battery operation: Batteries almost empty

AR Stability control (AutoRead) is active

TP Temperature measurement active

TIME Setting of calibration interval

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Overview pH 3110

1.3 Socket field

Connectors:

1 pH electrode

2 Reference electrode

3 Temperature sensor

4 Service interface

Caution

Only connect sensors to the meter that cannot return any voltages or currents that are not allowed (> SELV and > current circuit with current limiting). Almost all customary sensors fulfill these conditions.

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pH 3110 Safety

2 Safety

This operating manual contains basic instructions that you must follow during the commissioning, operation and maintenance of the meter. Consequently, all responsible personnel must read this operating manual before working with the meter. The operating manual must always be available within the vicinity of the meter.

Target group The meter was developed for work in the field and in the laboratory.

Thus, we assume that, as a result of their professional training and experience, the operators will know the necessary safety precautions to take when handling chemicals.

Safety instructions Safety instructions in this operating manual are indicated by the

warning symbol (triangle) in the left column. The signal word (e.g. "Caution") indicates the level of danger:

Further notes

Warning

indicates instructions that must be followed precisely in order to avoid possibly great dangers to personnel.

Caution

indicates instructions that must be followed precisely in order to avoid the possibility of slight injuries or damage to the meter or the environment.

Note

indicates notes that draw your attention to special features.

Note

indicates cross-references to other documents, e.g. operating manuals.

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Safety pH 3110

2.1 Authorized use

This meter is authorized exclusively for pH and ORP measurements in a laboratory or field environment. The technical specifications as given in chapter 7 T

ECHNICAL DATA must

be observed. Only the operation and running of the meter according to the instructions given in this operating manual is authorized. Any other use is considered unauthorized.

2.2 General safety instructions

This meter is constructed and tested in compliance with the IEC 1010 safety regulations for electronic measuring instruments. It left the factory in a safe and secure technical condition.

Function and

operational safety

The smooth functioning and operational safety of the meter can only be guaranteed if the generally applicable safety measures and the specific safety instructions in this operating manual are followed during operation.

The smooth functioning and operational safety of the meter can only be guaranteed under the environmental conditions that are specified in chapter 7 T

ECHNICAL DATA.

If the meter was transported from a cold environment to a warm environment, the formation of condensate can lead to the faulty functioning of the meter. In this event, wait until the temperature of the meter reaches room temperature before putting the meter back into operation.

Caution

The meter is only allowed to be opened by authorized personnel.

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pH 3110 Safety

Safe operation If safe operation is no longer possible, the meter must be taken out of

service and secured against inadvertent operation! Safe operation is no longer possible if the meter:

z has been damaged in transport

z has been stored under adverse conditions for a lengthy period of

time

z is visibly damaged

z no longer operates as described in this manual.

If you are in any doubt, please contact the supplier of the meter.

Obligations of the

purchaser

The purchaser of this meter must ensure that the following laws and guidelines are observed when using dangerous substances:

z EEC directives for protective labor legislation

z National protective labor legislation

z Safety regulations

z Safety datasheets of the chemical manufacturers.

Caution

In addition to the safety instructions mentioned here, also follow the safety instructions of the sensors used. The operating manuals of the sensors are available on the supplied CD and on the Internet under www.WTW.com.

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Safety pH 3110

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pH 3110 Commissioning

3 Commissioning

3.1 Scope of delivery

z Handheld meter, pH 3110

z 4 batteries 1.5 V Mignon type AA

z Operating manual

3.2 Initial commissioning

Perform the following activities:

z Insert the supplied batteries

z Switch on the meter

3.2.1 Inserting the batteries

1 Unscrew the two screws (1) on the underside of the meter.

2 Open the battery compartment (2) on the underside of the

meter.

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3 Place four batteries (type Mignon AA) in the battery

compartment.

Commissioning pH 3110

Note

Alternatively, you can also use Ni-MH rechargeable batteries (type Mignon AA). In order to charge the batteries, an external charging device is required.

Caution

Make sure that the poles of the batteries are positioned correctly. The

± signs on the batteries must correspond to the ± signs in the

battery compartment.

4 Close the battery compartment (2) and tighten the screws (1).

3.2.2 Switching on the meter

1 Place the meter on a flat surface and protect it from intense

light and heat.

2 Press the <On/Off>

key.

A display test is briefly displayed. Subsequently, the meter switches to the measuring mode (measured value display).

Note

The meter has an energy saving feature to avoid unnecessary battery depletion during battery operation. The energy saving feature switches off the meter if no key was pressed during the specified interval (setting the switch-off interval see section

4.5.1).

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pH 3110 Operation

4 Operation

4.1 General operating principles

This section contains basic information on the operation of the pH 3110.

4.1.1 Operating modes

The meter has the following operating modes:

z Measurement

The display indicates the measurement data in the measured value display

z Calibration

The display guides you through a calibration procedure with calibration information

z Configuration

The system menu or a sensor menu with submenus, settings and functions is displayed

4.1.2 Operation

Keys The meter is operated via keys. The keys can have different functions

with long or short keystrokes.

Functions Generally, with a short keystroke a function is carried out. A long

keystroke opens a setting menu.

In a setting menu, settings are selected with the <▲><▼> keys. A setting is confirmed with <ENTER>. With confirming, the setting is finished and the next setting is displayed.

Representation In this operating manual, keys are indicated by brackets <..> .

The key symbol (e.g. <ENTER>) generally indicates a short keystroke (under 2 sec) in this operating manual. A long keystroke (approx. 2 sec) is indicated by the underscore behind the key symbol (e.g.

<ENTER

_>).

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