JUMO 202710/30 Manuel utilisateur

Handheld Meter for Conductivity (CR),

Specific Electrical Resistivity, TDS, and Salinity

Type 202710/30

Operating Manual

20271030T90Z001K000

V2.00/EN/00463204

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Contents

1 Typographical conventions ...................................................... 5

1.1 Warning symbols .........................................................................................5

1.2 Note symbols ...............................................................................................5

2 General information .................................................................. 6

2.1 Preface .........................................................................................................6

2.2 Intended use ................................................................................................6

2.3 Safety information ........................................................................................6

2.4 Notes on operation and maintenance ..........................................................8

2.4.1 Battery operation .........................................................................................8

2.4.2 Power supply unit operation ........................................................................8

3 Identifying the device version .................................................. 9

3.1 Nameplate ....................................................................................................9

3.2 Order details .................................................................................................9

4 Operation ................................................................................. 10

4.1 Display .......................................................................................................10

4.2 Control elements ........................................................................................11

4.3 Connections ...............................................................................................12

4.4 Stand-up hinge ..........................................................................................12

5 Measuring ................................................................................ 13

5.1 The measuring cell .....................................................................................13

5.2 Switching on the device .............................................................................14

5.3 Measuring the conductivity ........................................................................14

5.4 Measuring the specific electrical resistivity ................................................15

5.5 Measuring the filtrate dry residue (TDS measurement) ..............................15

5.6 Measuring the salinity ................................................................................16

5.7 Temperature compensation .......................................................................17

5.7.1 Nonlinear temperature compensation "nLF" according to EN 27888 .......17

5.7.2 Linear temperature compensation "t.Lin" ..................................................18

5.8 Saving a measured value with the hold function (HLD) .............................18

6 Device settings ........................................................................ 19

6.1 Calling up the setting menu .......................................................................19

6.2 Resetting to default settings ......................................................................20

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Contents

6.3 Configuring the device ...............................................................................20

6.3.1 Submenu "SEt ConF": general settings .....................................................20

6.3.2 Submenu "SEt Out": serial interface settings ............................................28

6.4 Parameterizing the device ..........................................................................29

6.4.1 Submenu "SEt Corr": offset/zero point correction and slope correction

of the temperature measurement ..............................................................29

6.4.2 Submenu "SEt CLOC": setting the real-time clock ...................................30

6.4.3 Submenu "rEAd CAL.": reading the calibration data .................................32

7 Calibration ............................................................................... 33

7.1 Offset/zero point correction and slope correction of the

temperature input .......................................................................................33

7.2 Calibrating the relative time constant ........................................................33

7.2.1 Calibration using customer-specific reference solution

("CAL Edit" function) ..................................................................................33

7.2.2 Calibration using standard reference solutions ("CAL rEF.S" function) .....34

7.2.3 Error messages during calibration .............................................................35

7.3 Determining the relative time constant with a calculation .........................35

8 Maintenance ............................................................................ 36

8.1 Good laboratory practice (GLP) .................................................................36

8.1.1 Calibration timer ("C.Int") ...........................................................................36

8.1.2 Reading the calibration data ("rEAd CAL") ................................................36

8.2 Real-time clock ("CLOC") ..........................................................................37

9 Error and system messages .................................................. 38

10 Returns and disposal .............................................................. 39

10.1 Returns .......................................................................................................39

10.2 Disposal .....................................................................................................39

11 Technical data ......................................................................... 40

12 China RoHS ............................................................................. 42

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1 Typographical conventions

1.1 Warning symbols

1.2 Note symbols

DANGER!

This symbol indicates that personal injury from electrocution may occur if

the appropriate precautionary measures are not taken.

CAUTION!

This symbol in connection with the signal word indicates that damage to

assets or data loss will occur if the respective precautionary measures are

not taken.

NOTE!

This symbol refers to important information about the product, its handling,

or additional use.

✱Action instruction

This symbol indicates that an action to be performed is described.

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2 General information

2.1 Preface

Read through this document carefully and familiarize yourself with the opera-

tion of the device before you start using it. Keep this document close at hand

and in the immediate vicinity of the device so that you or the specialist person-

nel can consult it at all times in case of doubt.

Mounting, startup, operation, maintenance, and decommissioning must only

be performed by personnel with a specialist qualification. The specialist per-

sonnel must have carefully read through and understood the operating manual

prior to commencing any work.

The liability and warranty of the manufacturer for damage and consequential

damage is rendered void in the event of improper use, failure to observe this

operating manual, deployment of personnel with insufficient qualifications,

and unauthorized modifications to the device.

The manufacturer is not liable for costs or damages incurred by the user or by

third parties through the use of this device, particularly in the event of

improper use of the device or in the event of misuse or malfunctions relating to

the connection or the device.

2.2 Intended use

When used with a securely connected sensor, the device is designed for mea-

suring conductivity, specific electrical resistivity, salt content, and TDS.

The safety information (see chapter 2.3 "Safety information") in this operating

manual must be observed.

The device must only be used under the conditions or for the purposes for

which it has been designed.

The device must be handled with care, protected against pollutants, and used

according to the technical data.

2.3 Safety information

The device has been built and tested according to the safety regulations for

electrical measuring devices. Please observe the customary safety precau-

tions and the device-specific safety information in this operating manual.

DANGER!

If it is assumed that risk-free operation of the device is no longer possible, the

device must be decommissioned and guarded against subsequent startup by

means of an identification marking. The safety of the user may be compro-

mised by the device if, for example, the device

• features visible damage,

• no longer operates in the specified manner,

• has been stored in unsuitable conditions for an extended period of time.

In case of doubt, send the device to the manufacturer for repair/maintenance

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2 General information

DANGER!

Do not operate with a defective power supply unit!

In this case, potentially fatal excess voltage may occur at the sockets of the

device!

DANGER!

The device is not suitable for safety applications, emergency off equipment,

or applications in which a malfunction could lead to injuries and material

damage.

Failure to observe this note may lead to serious damage to health and mate-

rial damage!

DANGER!

This device must not be used in a potentially explosive environment. If the

device is operated in a potentially explosive environment, there is an

increased hazard of deflagration, fire, or explosion due to formation of sparks!

NOTE!

The function and operational safety of the device can only be maintained

under the climatic conditions specified in chapter Chapter 11 "Technical

data", page 40.

If the device is transported from a cold environment to a warm environment,

the device may malfunction due to condensate formation. In this case, it is

necessary to wait for the device temperature to align with the room tempera-

ture prior to startup.

NOTE!

When connecting to other devices, take particular care in planning the wiring.

Under certain circumstances, internal connections in third-party devices (e.g.

connection of GND to ground) may lead to impermissible voltage potentials

that can cause impaired function or even destruction of the device itself or a

connected device.

NOTE!

Please do not connect any devices to socket 1 (see Chapter 4.3 "Con-

nections", page 12)!

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2 General information

2.4 Notes on operation and maintenance

2.4.1 Battery operation

2.4.2 Power supply unit operation

NOTE!

The device and sensor must be handled with care and used according to the

technical data (do not throw, do not subject to impact, etc.). The connectors

and sockets must be protected against pollutants.

NOTE!

If is displayed at the same time as "bAt" is shown in the bottom display,

the battery has been used up and must be replaced. However, the device

function remains guaranteed for a certain period of time.

If "bAt" is shown in the top display, the battery voltage is no longer sufficient

for device operation and the battery is now completely used up.

NOTE!

The battery must be removed if the device is stored at an ambient tempera-

ture of over 50 °C. The battery should be removed if the device is not used for

an extended period of time.

It is necessary to set the real-time clock once again after subsequent startup.

CAUTION!

When a power supply unit is connected, its voltage must be between

DC 10.5 V and 12 V. Do not generate any excess voltage! Basic power supply

units may feature excess open circuit voltage, which may lead to malfunction

or destruction of the device!

Prior to connecting the power supply unit to the electricity grid, it must be

ensured that the operating voltage stated on the power supply unit corre-

sponds to the mains voltage.

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3 Identifying the device version

3.1 Nameplate

Position

The nameplate is affixed to the base of the battery compartment.

Example

Fabrication number (F-No.)

The fabrication number provides information such as the production date

(year/week). The production date relates to the characters in positions 12 to 15

(from the left).

Example: F-No. = 00822713 01 0 1815 0001

The device was produced in the 15th calendar week of 2018.

3.2 Order details

Handmessgerät 202710/30 – 000

F – Nr. 00822713 01 0 1815 0001

(1) Basic type

202710/30 Manual measuring device for conductivity (CR), specific

electrical resistivity, TDS, and salinity

(2) Extra codes

000 None

071 Including carry case

(1) (2)

Order code /

Order example 202710/30 / 000

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4 Operation

4.1 Display

(1) Display of the measured value unit

(2) Warning signal:

In case of low battery or recalibration request

(3) Temperature coefficient configuration unit

(4) Subsidiary display/subsidiary measured value:

Temperature measured value

(5) Display of the selected temperature compensation

(6) Display elements for the appearance of the minimum (MIN),

maximum (MAX), or saved measured value (HLD)a

aThe "DIF" display is not supported in this device.

(7) Main display/main measured value:

Conductivity (mS/cm, µS/cm)

specific electrical resistivity (k

cm)

TDS/filtrate dry residue (mg/l)

Salinity (SAL)

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