Xylem Lab 870 User Manual

Operating manual

Lab 870

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Laboratory pH meter

with automatic sensor recognition

Lab 870

Accuracy when going to

press

Warranty We guarantee the instrument described for 3 years from the date of

The use of advanced technology and the high quality standard of our instruments are the result of continuous development. This may result in differences between this operating manual and your instrument. 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.

purchase. The instrument warranty covers manufacturing faults that are discovered within the warranty period. The warranty does not cover components that are replaced during maintenance work, e. g. batteries.

The warranty claim extends to restoring the instrument to readiness for use but not, however, to any further claim for damages. Improper handling or unauthorized opening of the instrument invalidates any warranty claim.

To ascertain the warranty liability, return the instrument and proof of purchase together with the date of purchase freight paid or prepaid.

CE conformity

Radio data transmission

SI Analytics GmbH hereby declares that the Lab 870 meter is in compliance with the essential requirements and the other relevant provisions of Directive 1999/5/EC. The EC declaration of conformity can be requested from SI Analytics GmbH.

Reprinting - even in the form of excerpts - is only allowed with the explicit written authorization of SI Analytics GmbH. Printed in Germany.

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Lab 870

KONFORMITÄTSERKLÄRUNG DECLARATION OF CONFORMITY DÉCLARATION DE CONFORMITÉ

Wir erklären in alleiniger

Verantwortung, dass das

Produkt

pH-Meter

Lab 870

auf das sich diese Erklärung

bezieht, übereinstimmt mit

den Angaben im Kapitel

We declare under our sole

responsibility that the

product

pH meter

Lab 870

to which this declaration

relates is in conformity with

the specifications in the

chapter

Nous déclarons sous notre seule responsabilité que le

produit

pH-mètre

Lab 870

auquel se réfère cette

déclaration est conforme aux

indications du chapitre

30. Oktober, October 30, 30 octobre 2005 AGQSF 0000-A102-01/091030

SI Analytics GmbH

Hattenbergstr. 10

D-55122 Mainz

Deutschland, Germany, Allemagne

Technische Daten

pH-Meter

Lab 870

30. Oktober 2009

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Lab 870

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Lab 870 Contents

Lab 870 - Contents

1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.1 Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.3 Socket field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.4 Automatic sensor recognition . . . . . . . . . . . . . . . . . . . . . 11

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.2 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . 14

3 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.1 Scope of delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.1 Switching on the meter . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.2 General operating principles . . . . . . . . . . . . . . . . . . . . . . 22

4.2.1 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . 22

4.2.2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.3 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.3.1 Measuring the pH value . . . . . . . . . . . . . . . . . . . 24

4.3.2 Measuring the ORP . . . . . . . . . . . . . . . . . . . . . . 25

4.4 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.4.1 Calibration interval (Int.C) . . . . . . . . . . . . . . . . . 31

4.4.2 Automatic calibration (AutoCal) . . . . . . . . . . . . . 32

4.4.3 Downloading calibration data . . . . . . . . . . . . . . . 35

4.5 Transmitting data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4.5.1 Options for data transmission . . . . . . . . . . . . . . 38

4.5.2 Automatically downloading measurement

datasets at intervals . . . . . . . . . . . . . . . . . . . . . . 39

4.5.3 Downloading calibration data . . . . . . . . . . . . . . . 39

4.5.4 RS232 interface . . . . . . . . . . . . . . . . . . . . . . . . . 39

4.5.5 USB interface (device) . . . . . . . . . . . . . . . . . . . . 40

4.5.6 Operation with MultiLab pilot . . . . . . . . . . . . . . . 40

4.6 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4.6.1 System settings . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.6.2 Measurement settings . . . . . . . . . . . . . . . . . . . . 44

4.6.3 Interval for automatic data transmission . . . . . . 48

4.7 Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

4.7.1 Resetting calibration values . . . . . . . . . . . . . . . . 49

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Contents Lab 870

4.7.2 Resetting all meter settings . . . . . . . . . . . . . . . . 50

5 Maintenance, cleaning, disposal . . . . . . . . . . . . . . . . . 51

5.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

5.1.1 Replacing the batteries. . . . . . . . . . . . . . . . . . . . 51

5.2 Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

5.3 Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

5.4 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

6 What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

7 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

7.1 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

7.2 Measuring ranges, resolution, accuracy . . . . . . . . . . . . . 59

8 Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

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Lab 870 Overview

1Overview

The compact Lab 870 precision pH meter enables you to perform pH measurements rapidly and reliably. The Lab 870 provides the maximum degree of operating comfort, reliability and measuring certainty for all applications. The proven calibration procedures and special stability control function (SC) support your work with the pH meter.

1 Keypad

2 Display

3 Socket field

Note

The meter is also available as part of individual Sets of equipment. You will find information on this and other accessories in the SI Analytics GmbH laboratory catalog or via the Internet.

Note

If you need further information or application notes, you can obtain the following material from SI Analytics GmbH:

z Application reports

z pH primers

z Safety datasheets.

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Overview Lab 870

MODE SC

CAL

MODE

CAL

1.1 Keypad

In this operating manual, keys are indicated by brackets <..> . The key symbol (e.g. <OK>) indicates a keystroke in this operating manual.

<On/Off>: <On/Off

<MODE>: <MODE

<CAL>: <CAL

<SC>: <SC

<▲>: Increment values, scroll

<▼>: Decrement values, scroll

_>:

Switch meter on / off Reset calibration values

Select measured parameter Open setting menu for calibration and measurement

Call up calibration procedure Display calibration data

Activate / deactivate stability control Set interval for data transmission

<OK>:

_>:

<OK

Confirm entries Open setting menu for system settings

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Lab 870 Overview

°F

U pH

LoBat

Auto

Store

CalError

Time

Day.Month

Year

Baud

No.

Ident

mV/pH

RCL

SET

BUFFER

AutoCal

Status display indicator

CalClock (calibration interval and sensor evaluation)

ID sensor symbol

Measured value display

Temperature display and further function indicators

1.2 Display

Function display

indicators

[SET] During calibration: number of the buffer set

[BUFFER] During calibration: number of the buffer

[AutoCal] Calibration with automatic buffer recognition

[CalError] An error occurred during calibration

[LoBat] With battery operation: batteries almost empty

[SC] Stability control is active

[TP] Temperature measurement active

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Overview Lab 870

1.3 Socket field

Connectors:

1 pH electrode

2 Reference electrode

3 Temperature sensor

4 USB interface

5 Power pack

6 RS 232 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 sensors - in particular SI Analytics GmbH sensors fulfill these conditions.

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Lab 870 Overview

DIN

BNC

1.4 Automatic sensor recognition

The automatic sensor recognition function enables

z operation of a sensor with different meters without recalibration

z operation of different sensors with a meter without recalibration

z to assign measurement data to a sensor

– measurement datasets are always downloaded to the interface

along with the sensor type and sensor series number

z to assign calibration data to a sensor

– calibration data is always downloaded to the interface along with

the sensor type and sensor series number

To be able to use the automatic sensor recognition function, you need a meter that supports the automatic sensor recognition (e.g. Lab 870) and a sensor (ID sensor) that is suitable for sensor recognition.

In ID sensors, sensor data is stored that clearly identifies the sensor. The sensor data is automatically transmitted to the meter by radio and used for sensor identification there.

Note

You can also operate non-ID sensors with the Lab 870 meter. In this case, however, you will not be able to use the advantages of the sensor recognition function.

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Overview Lab 870

ID sensor symbol

ID sensors SI Analytics GmbH ID sensors support the automatic sensor

recognition. "ID" is added to the designation of these sensors, e.g. electrode BlueLine 14 pH ID.

Note

Information on available ID sensors is given on the Internet or directly by SI Analytics.

ID sensors connected to the Lab 870 meter are identified by the ID sensor symbol on the display of the meter.

Sensor data from

ID sensors

ID sensors transmit the following sensor data

z Sensor type

z Sensor series number

z Calibration data

– Calibration date

– Calibration characteristics

– Calibration interval

The calibration data is updated in the ID sensor after each calibration procedure. The ID sensor symbol flashes while this is being done.

Note

The sensor must not be disconnected while the ID sensor symbol is flashing, as otherwise the calibration data will not be completely transmitted. The sensor will then have no valid calibration.

Note

If non-ID sensors are used, the calibration data is read out by the meter and stored in the meter.

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Lab 870 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 instrument.

Target group The meter was developed for work 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 instrument 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 Lab 870

2.1 Authorized use

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

ECHNICAL DATA

(page 57) 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 instrument 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 (page 57).

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

CAUTION

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

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Lab 870 Safety

Safe operation If safe operation is no longer possible, the instrument 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 instrument.

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.

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Safety Lab 870

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Lab 870 Commissioning

3 Commissioning

3.1 Scope of delivery

z Lab 870 laboratory meter

z Power pack

z 4 batteries 1.5 V Mignon type AA

z USB cable with A plug and B plug

z Transparent cover

z Operating manual

z CD-ROM with USB driver

3.2 Initial commissioning

Insert batteries

Perform the following activities:

z Insert batteries

z Switch on the meter

z Set the date and time

z Connect the power pack (for line power operation only).

1 Open the battery compartment (1) on the underside of the

meter.

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

compartment.

3 Close the battery compartment (1).

The date (day) flashes in the display.

4 Set the date and time according to page 42.

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Commissioning Lab 870

CAUTION

Make sure that the poles of the batteries are the right way round. The

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

battery compartment. Only use leakproof alkaline manganese batteries.

Switching on the meter

Setting the date and

time

Connecting the power

pack

1 Switch on the meter with <On/Off>.

A display test is briefly displayed.

2 See page 42.

You can either operate the measuring instrument with batteries or with the plug-in power supply. The plug-in power supply supplies the measuring instrument with low voltage (12 VDC). This saves the batteries.

CAUTION

The line voltage at the operating site must lie within the input voltage range of the original power pack (see page 57).

CAUTION

Use original power packs only (see page 57).

3 Insert the plug into the socket of the pH meter.

4 Connect the original power pack to an easily accessible power

outlet.

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Lab 870 Commissioning

Note

You can carry out measurements without the power pack.

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Commissioning Lab 870

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Lab 870 Operation

4 Operation

4.1 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>

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 page 42). The energy saving feature is not active:

z if the meter is supplied via the power pack or the USB interface

z if a PC is connected (with communication cable to RS232 interface)

z if the printer cable is connected (for external printers).

key.

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Operation Lab 870

4.2 General operating principles

This section contains basic information on the operation of the Lab 870.

4.2.1 Operating modes

The instrument has the following operating modes:

z Measurement

The display indicates the measurement data in the measured value display

z Calibration

The display guides you thru a calibration procedure with calibration information

z Transmitting data

The meter transmits measuring data and calibration records to a serial interface automatically or manually.

z Configuration

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

4.2.2 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 <OK>. 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. <OK>) 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.

<OK

_>).

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+ 49 hidden pages