YSI TruLine 21 User Manual [en, fr, es]

OPERATING

MANUAL

TruLine 21 TruLine 25 TruLine 26 TruLine 27

MODE

INSTRUCCIONES DE

D’EMPLOI

OPERACIÓN

814240 04/2014

TruLine

Operating

Technical data ................................................................................................................. 5

Commissioning, measuring, calibration .......................................................................... 5

Storage ........................................................................................................................... 7

Aging ............................................................................................................................... 7

Maintenance and cleaning .............................................................................................. 8

Wear parts and accessories ............................................................................................ 8

Mode d'emploi ...................................................................................................................... 9

Caractéristiques techniques .......................................................................................... 11

Mise en service, mesure, calibration ............................................................................. 11

Stockage ....................................................................................................................... 13

Vieillissement ................................................................................................................ 14

Maintenance et nettoyage ............................................................................................. 14

Pièces d'usure et accessoires ....................................................................................... 14

Instrucciones de

Especificaciones técnicas ............................................................................................. 17

Puesta en funcionamiento, medición, calibración ......................................................... 17

Almacenamiento ........................................................................................................... 19

Envejecimiento .............................................................................................................. 19

Mantenimiento y limpieza .............................................................................................. 19

Piezas de desgaste y accesorios .................................................................................. 20

Contact Information........................................................................................ 23

Manual .....................................................................................................................

operación ...................................................................................................

TruLine 21 TruLine 25 TruLine 26 TruLine 27

OPERATING

814240 04/2014

MANUAL

TruLine

COMBINATION

ELECTRODES WITH

POLYMER

AND GEL ELECTROLYTE

TruLine

For the most recent version of the manual, please visit www.ysi.com

Contact YSI

1725 Brannum Lane Yellow Springs, OH 45387 USA Tel: +1 937-767-7241

800-765-4974 Email: environmental@ysi.com Internet: www.ysi.com

TruLine

Technical

data

T 814240

04/2014

Model

Reference

Junction

NTC

Special features

TruLine 25

Gel

Fiber

Plastic shaft

TruLine 26

Gel

Fiber

Yes

Plastic shaft

TruLine 21

Polymer

Hole

Combination electrode for cut-in

TruLine 27

Polymer

Split ring

Combination electrode for surface

Model

pH mea-

Allowed

Membrane

Typical application

TruLine 25

0 ... 14

0 ... 80 °C

< 1 GOhm

Field

TruLine 26

0 ... 14

0 ... 80 °C

< 1 GOhm

Field

TruLine 21

2 ... 13

0 ... 80 °C

< 400 MOhm

Laboratory / foods

TruLine 27

2 ... 13

0 ... 50 °C

< 1 GOhm

Laboratory

Model

Shaft Electrical connection

Length

Ø [mm]

Material

Combination

Meter con-

Cable

TruLine 25

120

12 PPE/PS

Fixed cable

BNC

1 m

TruLine 26

120

12 PPE/PS

Fixed cable

BNC+banana

1 m

TruLine 21

65/25**

15/5**

PPE/PS

Fixed cable

BNC

1 m

TruLine 27

120

12 Glass

Fixed cable

BNC

1 m

Technical

General data

data

electrolyte

measurements

Measurement and application characteristics

suring range

temperature range

resistance at 25 °C

Shaft dimensions, shaft material, electrical connection

[mm]

Commissioning, measuring,

Commissioning Prepare the combination electrode for measuring as follows:

 Remove the watering cap from the electrode tip. Possible salt deposits in

the area of the watering cap do not affect the measuring characteristics and can easily be removed with deionized water.

electrode connection

calibration

nection

length

Note

Please keep the watering cap. It is required for the combination electrode to

Commissioning, measuring,

calibration

TruLine

T 814240

04/2014

Calibration

and

measurement:

General

rules

be stored. Always keep the watering cap clean.  TruLine 25, TruLine 26 and TruLine 21: Remove any gas bubbles behind

the pH membrane by shaking. With all other combination electrodes, gas bubbles behind the pH membrane are not a problem.

 Connect the combination electrode to the meter.  Calibrate the combination electrode according to the operating manual of

the meter and observe the following rules while doing so:

 Avoid the displacement of any solution (sample or buffer solution) from

one measurement to the next by taking the following measures: – Shortly rinse the calibration and sample beakers with the solution the

beakers are to be filled with next.

– Between measurements, rinse the combination electrode with the so-

lution that follows. Alternatively, you can also rinse the combination electrode with deionized water and then carefully dab it dry.

 To measure in aqueous solutions, it is

recommended

to immerse the com-

bination electrode in a vertical or slightly tilted position.

 Observe the correct depth of immersion and make sure the contact be-

tween the junction and test sample is thorough. The junction is in the area of the bottom end of the shaft (see arrow).

TruLine 25 TruLine

Caution:

Only the shaft part of the combination electrode may be immersed!

 For

measurements

stirring conditions for measuring as for calibrating.

Subsequent

calibrations

The frequency of subsequent calibrations depends on the application. Many meters provide an option where you can enter a calibration interval. After the calibration interval has expired, the meter will automatically remind you of the due calibration.

TruLine 21 TruLine 27

in aqueous solutions, provide

approximately

the same

TruLine

Storage

T 814240

04/2014

During short

measuring breaks

Overnight

longer

Storage

Immerse the combination electrode in reference electrolyte (KCl 3 mol/L,

free). Prior to the next measurement, shortly rinse the combination

Ag electrode with the test sample or deionized water.

Note Prevent contact of the pH membrane to the beaker bottom to avoid scratches on the pH membrane.

Put the clean combination electrode in the watering cap that is filled with reference electrolyte (KCl 3 mol/L, Ag

Note pH combination electrodes must not be stored dry or in deionized water. The

combination electrode could be permanently damaged by this. If the liquid in the watering cap has dried up, condition the combination electrode in

reference electrolyte (KCl 3 mol/L, Ag Note

During longer storing periods, salt sediments may develop on the watering cap. They do not affect the measuring characteristics and can easily be removed with deionized water when the combination electrode is put into operation again.

free).

free) for at least 24 hours.

Aging

Every pH ing, the responding behavior becomes slower and the electrode slope and asymmetry change. Moreover, extreme operating conditions can considerably shorten the lifetime of the combination electrode. These are:

 Strong acids or lyes, hydrofluoric acid, organic solvents, oils, fats, bro-

mides, sulfides, iodides, proteins

 High temperatures  High changes in pH and temperature.

The warranty does not cover failure caused by measuring conditions and mechanical damage.

combination

electrode

undergoes

a natural aging process. With ag-

T 814240

04/2014

Maintenance

and cleaning

TruLine

Fat and oil

Rinse with water containing household

Lime and hydroxide deposits

Rinse with citric acid (10 % by weight)

Description

Model

Order no.

Reference electrolyte solution 250 mL

KCl-250

109 705Y

Maintenance

and cleaning

Cleaning Remove water-soluble contamination by rinsing with deionized water. Other

types of contamination have to be removed as follows while the contact time with the detergents should be kept as short as possible:

Contamination Cleaning procedure

washing-up liquid

Note Hydrofluoric acid, hot phosphoric acid and strong alkaline solutions destroy the glass membrane.

After cleaning Rinse the combination electrode with deionized water and condition it in

reference electrolyte solution for at least 1 hour. Then recalibrate the combination electrode.

Wear parts and accessories

(KCl 3 mol/L, Ag+ free)

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