Wtw PH 3150i Manual de usuario

ba75679e01 01/2007

Handheld meter

pH 3150i

Operating manual

CAL

pH measuring instrument

Accuracy when

going to press

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. Al-

so, we cannot guarantee that there are absolutely no errors in this man-

ual. Therefore, we are sure you will understand that we cannot accept

any legal claims resulting from the data, figures or descriptions.

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

purchase.

The instrument warranty covers manufacturing faults that are discov-

ered within the warranty period. The warranty does not cover compo-

nents 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 han-

dling or unauthorized opening of the instrument invalidates any warran-

ty claim.

To ascertain the warranty liability, return the instrument and proof of

purchase together with the date of purchase freight paid or prepaid.

Reproduction in whole - or even in part - is prohibited without the ex-

press written permission of WTW GmbH, Weilheim.

Printed in Germany.

pH 3150i List of contents

Contents

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

1.1 SETs of equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.3 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.4 Jack field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

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

2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

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

3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

4.1 Switching on the measuring instrument . . . . . . . . . . . . . 13

4.2 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4.2.1 Measuring the pH value . . . . . . . . . . . . . . . . . . 15

4.2.2 Measuring the ORP voltage . . . . . . . . . . . . . . . 16

4.3 Calibrating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.3.1 AutoCal TEC . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.3.2 AutoCal DIN . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.4 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.5 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5 Maintenance, cleaning, disposal . . . . . . . . . . . . . . . . . 31

5.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6 What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

8 Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

List of contents pH 3150i

pH 3150i Overview

1Overview

The compact precision pH 3150i handheld meter enables you to carry

out pH measurements rapidly and reliably.

The pH 3150i handheld meter provides the maximum degree of oper-

ating comfort, reliability and measuring certainty for all applications.

The proven MultiCal®calibration procedure and the special AutoRead

function support you in your work with the pHhandheld meter.

Note

If you need further information or application notes, you can obtain the

following material from WTW:

zApplication reports

zPrimers

zSafety datasheets.

You will find information on available literature in the WTW catalog or

via the Internet.

1Keypad

2Display

3Jack field

CAL

Overview pH 3150i

1.1 SETs of equipment

The measuring instrument is also available as part of individual SETs

of equipment.

You will find additional information on this and other accessories in the

WTW catalog or via the Internet.

Set (sample configuration):

1 Measuring instrument, pH 3150i

2 Stand

3–KCI solution for electrodes

–50 ml pH buffer solution, STP 4

–50 ml pH buffer solution, STP 7

–Beaker, 50 ml

4 pH electrode

pH 3150i Overview

1.2 Keypad

Key functions

RUN/ENTER

CAL

Select the measuring mode <M>:

–pH value

–ORP voltage

Switch measuring instrument on/off

Calibrate, select the calibration proce-

dure

<CAL>

Activate/deactivate the AutoRead

function

<AR>

Confirm entries,

start AutoRead

CAL

RUN/ENTER

Overview pH 3150i

1.3 Display

1.4 Jack field

Warning

Only connect electrodes to the measuring instrument that do not return

any unallowed voltages or currents (> SELV and > current circuit with

current limiting).

Almost all electrodes - in particular WTW electrodes - fulfill these con-

ditions.

1pH electrode

2Reference electrode

3Temperature probe

°F

ConCal

Auto Store

Time

Baud

Day.Month No.

Ident

Year

RCL

TempError

mg/L

% ppm

mol/L

ISE

888

mV/pH

°C

UpH

LoBat

AutoCal DIN

CalError

ARng AR

AutoCal TEC

Status display

Meas. value display

Function and

temperature display

Sensor symbol

Ref

pH 3150i Safety

2 Safety

This operating manual contains basic instructions that you must follow

during the commissioning, operation and maintenance of the measur-

ing instrument. Consequently, all responsible personnel must read this

operating manual carefully 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 laboratory.

We assume that, as a result of their professional training and experi-

ence, the operators will know the necessary safety precautions to take

when handling chemicals.

Symbols

used

Warning

indicates instructions that must be followed to prevent damage to your

instrument.

Note

indicates notes that draw your attention to special features.

Note

indicates cross-references to other documents, e.g. application re-

ports, operating manuals of probes, etc.

2.1 Authorized use

The authorized use of the measuring instrument consists exclusively of

the pH and ORP measurement in the field and laboratory.

The technical specifications as given in chapter 7 TECHNICAL DATA must

be observed. Only the operation and running of the measuring instru-

ment according to the instructions given in this operating manual is au-

thorized.

Any other use is considered to be unauthorized.

Safety pH 3150i

2.2 General safety instructions

This instrument is built and inspected according to the relevant guide-

lines and norms for electronic measuring instruments (see chapter 7

TECHNICAL DATA).

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

Function and operating

safety

The smooth functioning and operational safety of the measuring instru-

ment can only be guaranteed if the generally applicable safety mea-

sures and the specific safety instructions in this operating manual are

followed during operation.

The smooth functioning and operational safety of the measuring instru-

ment can only be guaranteed under the environmental conditions that

are in specified in chapter 7 TECHNICAL DATA.

If the instrument was transported from a cold environment to a warm

environment, the formation of condensate can lead to the faulty func-

tioning 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:

zhas been damaged in transport

zhas been stored under adverse conditions for a lengthy period of

time

zis visibly damaged

zno 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 the measuring instrument must ensure that the fol-

lowing laws and guidelines are observed when using dangerous sub-

stances:

zEEC directives for protective labor legislation

zNational protective labor legislation

zSafety regulations

zSafety datasheets of the chemical manufacturers.

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