Xylem handylab LF 11 User Manual

Operating manual

Tref25

nLF

handylab LF 11

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Conductivity Meter

handylab LF 11

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.

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

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handylab LF 11 List of contents

handylab LF 11 - List of contents

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

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

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

1.3 Jack field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.4 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.2 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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

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

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

4.1 Switching on the measuring instrument . . . . . . . . . . . . . . . . . 15

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

4.2.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.2.2 Conductivity / Resistivity . . . . . . . . . . . . . . . . . . . . . . . 17

4.2.3 Salinity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2.4 TDS (Total dissolved solids) . . . . . . . . . . . . . . . . . . . . 18

4.3 Determining/setting up the cell constant [C] . . . . . . . . . . . . . . 20

4.3.1 Determining the cell constant (calibrating in the

control standard) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.3.2 Setting the cell constant manually . . . . . . . . . . . . . . . 23

4.3.3 Setting the temperature compensation TC . . . . . . . . . 26

4.4 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.5 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

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5 Maintenance, cleaning, disposal . . . . . . . . . . . . . . . . . . . . . 33

5.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6 What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

7 Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

List of contents handylab LF 11

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handylab LF 11 Overview

Tref25

nLF

1 Overview

The compact precision handheld meter handylab LF 11 enables you to carry out conductivity measurements rapidly and reliably. The handylab LF 11 provides the maximum degree of operating comfort, reliability and measuring certainty for all applications.

The proven procedure for adjusting or setting the cell constant and the special AutoRead function support you in your work with the handylab LF 11.

1 Keypad

2 Sample display

3 Jack field

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Overview handylab LF 11

CAL

RUN/ENTER

CAL

RUN/ENTER

1.1 Keypad

Key functions

Select the measuring mode <M>: – Conductivity/Resistivity

– Salinity

– Total dissolved solids (TDS)

Switch measuring instrument on/off

– Determine or set up the cell constant

– Select temperature compensation

<CAL>

Activate/deactivate the AutoRead function

<AR>

Increase values, scroll

<V >

Decrease values, scroll

<W >

Confirm entries, start AutoRead

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handylab LF 11 Overview

mg/l

RCL

Auto

Store

Lin

Time

Baud

Day.Month No.

Ident

Year

AutoCal DIN AutoCal TEC

mV/pH

Sal

mbar

OUpH

LoBat

Cal

ARng

Sal

Tref25

Tref20

nLF

TDS

Status display

Meas. value display

Function and temperature display

Sensor symbol

1.2 Display

1.3 Jack field

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1 Conductivity measuring cell

Caution

Only connect conductivity measuring cells to the measuring instrument that cannot return any voltages or currents that are not allowed (> SELV and > current circuit with current limiting). Nearly all measuring cells - especially SI Analytics measuring cells - fulfill these conditions.

Overview handylab LF 11

1.4 Technical Data

Dimensions

and weight

Mechanical

structure

Electrical safety

Test certificates

Ambient

conditions

Length [mm] 172

Width [mm] 80

Height [mm] 37

Weight [kg] Approx. 0.3

Type of protection IP 66

Protective class III

cETLus, CE

Storage - 25 °C ... + 65 °C

Operation -10 °C ... + 55 °C

Relative atmospheric

< 90 % of annual average

humidity

Measuring ranges

ϰ [µS/cm]

0.000 ... 1.999 (only for cell constant = 0.010 cm

-1

)

0.00 ... 19.99 (only at a cell const. = 0.010 cm cell const. = 0.090 ... 0.110 cm

-1

and

)

0.0 ... 199.9 0 ... 1999

ϰ [mS/cm]

0.00 ... 19.99

0.0 ... 199.9 0 ... 500

Spec. resistance [MΩ*cm]

0.000 ... 1.999

0.00 ... 19.99

0.0 ... 199.9 0 ... 1999

SAL 0.0 ... 70.0 according to the IOT table

TDS [mg/l] 0 ... 1999

Factor can be set to between 0.40 ... 1.00

T [°C] − 5.0 ... + 105.0

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handylab LF 11 Overview

Accuracy

(±1 digit)

ϰ ,

Resistivity

No compensation: 0.5 %

Nonlinear compensation : Precision Sample temperature ± 0.5 % 0 °C ... 35 °C

according to EN 27 888;

± 0.5 % 35 °C ... 50 °C

extended nLF function

Linear compensation Accuracy Sample temperature ± 0.5 % 10 °C ... 75 °C (The accuracy percentage always refers to the measured value.)

SAL Range 0.0 ... 42.0

Accuracy Sample temperature ± 0.1 5 °C ... 25 °C ± 0.2 25 °C ... 30 °C

Cell constant,

calibration

Cell constant,

selection

Reference

temperature

TDS [mg/l] 1

T [°C] NTC 30:

Accuracy ± 0.1

PT 1000: Accuracy Operating temperature ± 0.5 0 °C ... 15 °C ± 0.1 5 °C ... 35 °C ± 1 35 °C ... 55 °C

C [cm-1] 0.450 ... 0.500

0.800 ... 1.200

C [cm-1] 0.010 fixed

0.090 ... 0.110

0.250 ... 2.500

Tref Can be set to 20 °C or 25 °C

Temperature input

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Manual [°C] -5 ... +100

Overview handylab LF 11

FCC Class A Equipment Statement

Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

Power supply

Batteries 4 x 1.5 V alkali-manganese batteries, Type

Operational life Approx. 2500 operating hours (depending

on conductivity)

Applicable

guidelines and

norms

EMC EC guideline 2004/108/EC

EN 61326-1 EN 61000-3-2 EN 61000-3-3 FCC Class A

Instrument safety EC guideline 2006/95/EC

EN 61010-1 ANSI/UL 61010-1 CAN/CSA-C22.2 No. 61010-1

Climatic class VDI/VDE 3540

Type of protection EN 60529

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handylab LF 11 Safety

2Safety

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

Target group The measuring instrument was developed for work in the field and in the lab-

oratory. 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

Further notes

The individual chapters of this operating manual use safety instructions such as the label shown below to indicate various hazards or dangers:

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.

2.1 Authorized use

The authorized use of the measuring instrument consists exclusively of the measurement of conductivity, salinity, temperature and TDS (total dissolved solids) in the field and laboratory. The technical specifications as given in section 1.4 T observed. Only the operation and running of the measuring instrument according to the instructions given in this operating manual is authorized. Any other use is considered to be unauthorized.

ECHNICAL DATA must be

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Safety handylab LF 11

2.2 General safety instructions

This instrument is built and inspected according to the relevant guidelines and norms for electronic measuring instruments (see section 1.4 T D

ATA).

It left the factory in a safe and secure technical condition.

ECHNICAL

Function and oper-

ating safety

The smooth functioning and operational safety of the measuring instrument 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 measuring instrument can only be guaranteed under the environmental conditions that are specified in section 1.4 T

ECHNICAL DATA.

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.

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 measuring instrument:

z has been damaged in transport

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

z is visibly damaged

Obligations of the

purchaser

z no longer operates as described in this manual.

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

The purchaser of the measuring instrument 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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handylab LF 11 Commissioning

3 Commissioning

3.1 Scope of delivery

z Handheld meter, handylab LF 11

z Operating manual and short operating manual

z 4 batteries, 1.5 V Mignon type AA (in the instrument)

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Commissioning handylab LF 11

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+ 30 hidden pages