sewerin Multitec 540 Operating Instructions Manual

Operating

Instructions

Measurable success by Sewerin equipment

Congratulations. You have chosen a quality instrument manufactured
by Hermann Sewerin GmbH.

Our equipment will provide you with the highest standards of perfor-

mance, safety and efciency. They correspond with the national and

international guide-lines.

Please read and understand the following operating instructions before
using the equipment; they will help you to use the instrument quickly and
competently. If you have any queries we are available to offer advice
and assistance at any time.

Yours

Hermann Sewerin GmbH

Robert-Bosch-Straße 3
33334 Gütersloh, Germany

Tel.: [phone]
Fax: [phone]

www.sewerin.com
[e-mail]

SEWERIN Sarl

17, rue Ampère - BP 211
67727 HOERDT CEDEX, France
Tél. : [phone]
Fax : [phone]

www.sewerin.fr
[e-mail]

SEWERIN IBERIA S.L.

Centro de Negocios Eisenhower
Avenida Sur del Aeropuerto
de Barajas 24, Ed. 5 Of. 2C
28042 Madrid, España
Tel.: [phone]
Fax: [phone]

www.sewerin.es
[e-mail]

Sewerin Ltd

Hertfordshire
UK

Phone: [phone]

www.sewerin.co.uk
[e-mail]

Sewerin Sp.z o.o.

ul. Annopol 3
03-236 Warszawa, Polska
Tel.: [phone]
Fax: [phone]
Tel. kom. [phone]
[phone]

www.sewerin.com/pl

Multitec 540 illustrated

Connector

Supporting bracket

Buzzer

USB port

ON/OFF key

Connection for
power supply

Fig. 1: Multitec 540 device overview

Gas measuring
symbol

Gas

Measured

value

Signal light

Gas input

Display

Function keys

Jog dial

Connector

Unit

Capacity of dis­posable battery/
rechargeable
battery

Fig. 2: Multitec 540 display

Current assignment of

function keys F1 – F3

Display symbols

Esc

Menu

OK

Cancel

Perform device inspection

Tab
(jump to next input eld)

Save

Open stored
comment/inspector

Battery
capacity

Information

Clear

Fault

Measure gas

Operating Instructions

Multitec® 540

01.08.2011 – V1.XXX – 105832 – en

Symbols used

/…/ Reference to standards, guidelines and regulations

CAUTION! Danger of injuries!

This symbol refers to important safety instructions.
Adhere strictly to these instructions to avoid inju-

ries!

CAUTION! Danger of damages!

This symbol refers to important safety instructions.
Adhere strictly to these instructions to avoid mate-

rial damages!

Note:

This symbol refers to information and useful tips which

are exceeding the basic operating procedures.

(see bibliography in Section 7.11)

Contents Page

1 General .....................................................................................1

1.1 Warranty ...................................................................................1

1.2 Purpose ..................................................................................... 2

1.3 Intended use .............................................................................3

1.4 General safety information ........................................................4

2 Features ...................................................................................5

2.1 Visual and audible signals .........................................................5

2.2 Sensors .....................................................................................5

2.3 Explosion protection .................................................................. 6

3 Operation .................................................................................7

3.1 General information on operation .............................................. 7

3.1.1 Keys and jog dial .................................................................... 7

3.1.2 Selecting / exiting menus and menu items .............................. 8

3.1.3 Switching on the device .........................................................8

3.1.4 Differences between measuring mode and settings mode ..10

3.2 Measuring mode ..................................................................... 11

3.2.1 Accessing the menu (measuring mode menu structure) ...... 11

3.2.2 Zero point ............................................................................. 11

3.2.3 Gas measuring ..................................................................... 12

3.2.4 Settings ................................................................................12

3.2.5 Saving a measurement ........................................................12

3.2.6 Protocols ..............................................................................13

3.2.7 Device inspection ................................................................. 14

3.2.8 Device info ...........................................................................14

3.3 Settings ...................................................................................15

3.3.1 Opening Settings ..................................................................15

3.3.2 Settings menu structure .......................................................16

3.3.3 Adjustment ...........................................................................17

3.3.4 System .................................................................................18

3.3.5 Date/time .............................................................................. 19

3.3.6 Memory ................................................................................19

4 Power supply ......................................................................... 20

4.1 Suitable disposable/rechargeable battery types .....................20

4.2 Operation with rechargeable batteries ....................................21

4.2.1 Charging ...............................................................................21

I

Contents Page

4.2.2 Rechargeable battery servicing ............................................22

4.3 Battery alarm ........................................................................... 22

4.4 Replacing disposable/rechargeable batteries .........................23

5 Maintenance ..........................................................................24

5.1 Device inspection ....................................................................24

5.1.1 General information on the device inspection ...................... 24

5.1.1.1 Scope ................................................................................ 24

5.1.1.2 Frequency ......................................................................... 24

5.1.1.3 Documentation .................................................................. 24

5.1.1.4 Integrated device inspection .............................................25

5.1.1.5 Sequence .......................................................................... 26

5.1.2 Performing the device inspection ......................................... 26

5.1.2.1 Accessing the device inspection ....................................... 26

5.1.2.2 Concluding the device inspection......................................27

5.1.3 Testing the general status ....................................................29

5.1.3.1 Housing ............................................................................. 29

5.1.3.2 Signals ..............................................................................29

5.1.3.3 Probe.................................................................................29

5.1.3.4 Filter ..................................................................................30

5.1.3.5 Pump ................................................................................. 30

5.1.4 Testing indication accuracy with supply of fresh air .............31

5.1.5 Testing indication accuracy with supply of test gas .............. 31

5.2 Adjustment ..............................................................................33

5.2.1 Scope ................................................................................... 33

5.2.2 Preparation ...........................................................................33

5.2.3 Carry out adjustment ............................................................ 33

5.2.3.1 Adjusting the zero point.....................................................34

5.2.3.2 Adjusting sensitivity ........................................................... 34

5.2.4 Carrying out oxygen adjustment ..........................................35

5.2.4.1 Adjusting the zero point for oxygen ................................... 35

5.2.4.2 Adjusting the sensitivity for oxygen ................................... 36

5.3 Servicing .................................................................................37

6 Faults ......................................................................................38

7 Appendix ................................................................................39

7.1 Specications and permitted operating conditions .................. 39

7.2 Limit values for the device inspection .....................................40

II

Contents Page

7.3 Memory capacity .....................................................................40

7.4 Sensors ...................................................................................41

7.4.1 Infra red sensors (IR) ...........................................................41

7.4.1.1 Methane CH

.................................................................... 41

4

7.4.1.2 Carbon dioxide CO2 .........................................................41

7.4.2 Electrochemical sensors (EC) .............................................. 42

7.4.2.1 Oxygen O2 ........................................................................ 42

7.4.2.2 Hydrogen sulphide H2S ..................................................... 42

7.5 Technical information ..............................................................43

7.5.1 Identication sticker (back of device) ...................................43

7.5.2 Cleaning ............................................................................... 43

7.5.3 Electrostatic charge ..............................................................43

7.6 Accessories: ............................................................................ 44

7.7 Declaration of conformity ........................................................50

7.8 Inspection protocol ..................................................................51

7.9 Advice on disposal ..................................................................52

7.10 Terminology and abbreviations ...............................................53

7.11 Referenced documents ........................................................... 54

8 Index .......................................................................................55

III

1 General

1.1 Warranty

The following instructions must be complied with in order for any

warranty to be applicable regarding functionality and safe opera­tion of this equipment.

Hermann Sewerin GmbH cannot be held responsible for any dam-

ages resulting from non-compliance with these instructions. The

warranty and liability provisions of the terms of sale and delivery
of Hermann Sewerin GmbH are not affected by the information
given below.

z Do not operate this product until you have read and understood

the relevant operating instructions.

z The product must only be used for its intended purpose.

z Repairs must only be carried out by a specialist technician or

by other suitably trained personnel.

z Changes or modications to this product must not be carried

out without approval from Hermann Sewerin GmbH. The manu­facturer cannot be held responsible for damages if unapproved

modications have been made.

z Only accessories supplied by Hermann Sewerin GmbH may

be used with this product.

z All repairs must be carried out using replacement parts that

have been approved by Hermann Sewerin GmbH.

z Only use the appropriate type of disposable/rechargeable bat-

tery, otherwise the device will not be explosion-proof.

z The manufacturer reserves the right to make technical modi-

cations in the course of further development.

1 General

Generally applicable safety and accident-prevention regulations
must be complied with, in addition to the information provided in
this manual.

1

1 General

1.2 Purpose

The Multitec 540 is a gas measuring device for monitoring gas
mixtures that are formed in biological processes (biogas, landll
gas). It measures the concentration of several gases in the gas
mixture simultaneously. The device is ideal for use in waste dis-

posal sites, sewage plants and biogas plants.

The Multitec 540 is tted with infrared sensors for measuring

methane CH

be tted with electrochemical sensors.

and carbon dioxide CO2 as standard. It can also

4

Note:

These operating instructions refer to the Multitec 540
with all additional equipment. They explain the func­tions of rmware version 1.XXX. The manufac-

turer reserves the right to make technical changes.

All descriptions refer to the device as delivered (fac­tory settings).

2

1.3 Intended use

This device is intended for professional residential and commercial
use including small rms and commercial operations. The appro-

priate specialist knowledge is required to operate the device.

The device may be used to measure the following gases (depend­ing on the sensors tted).

z Methane CH

z Carbon dioxide CO

z Oxygen O

z Hydrogen sulphide H2S

If the device is used in closed spaces these must be well ven­tilated.

It should not be used for:

z Warning of dangerous gas concentrations
z Monitoring liquids

The device can be used up to a temperature of 40 ºC. However,

high temperatures reduce the lifetime of the sensors and re­chargeable batteries.

If a device with an electrochemical sensor is exposed to con­centrations above the measuring range limit, this can reduce the
lifetime of the sensor.

1 General

4

2

2

3

1 General

1.4 General safety information

z The Multitec 540 is a gas measuring device as opposed to a

gas warning instrument. It does not, therefore, warn of danger­ous toxic and explosive gas concentrations or lack of oxygen. If
you suspect dangerous gas concentrations, always take along
a gas warning instrument too.

z Observe the relevant safety regulations when working at agri-

cultural biogas plants/1/.

z The work area must be well ventilated.
z The device has been tested to ensure that it is explosion-proof

in accordance with European standards (CENELEC).

z Do not use this device in oxygen-enriched atmospheres, oth-

erwise it will not be explosion-proof.

z Only probe hoses with a hydrophobic lter may be used.

Exception:

If the probe has a built-in hydrophobic lter, the hose does not
require any other lters.

z Devices may only be tested with test gases in well ventilated

areas or outdoors. Test gases must be handled in a profes-

sional manner.

z Always carry out a device inspection (see Section 5.1) after

the device has suffered an impact (for example, if dropped

accidentally).

z The device complies with the limits of the EMC directive. Al-

ways observe the information in the manuals of (mobile) ra­dio equipment when using the device close to (mobile) radio

equipment.

CAUTION!

Follow the advice regarding explosion protection

(see Section 2.3).

4

2 Features

2.1 Visual and audible signals

The device features two alarms:

z Signal light on top of device

(visual signal)

z Buzzer on side of device (audible signal)

The signals indicate faults (see Section 6). The device also emits

signals when it is switched on and off.

2.2 Sensors

The device features two types of sensor:

z Infrared sensor (IR)
z Electrochemical sensor (EC)

Gas Measuring range Sensors Features

CH

CO

O

H

2

2

0.0 – 100 % vol. IR ×

4

0 – 100 % vol. IR ×

2

0 – 25.0 % vol. EC ○

S 0 – 2000 ppm EC ○

2 Features

× standard

○ optional

5

2 Features

2.3 Explosion protection

The device features the following explosion protection:

Explosion-proof
group

II2G Ex d e ib IIB T4 Gb – Methane CH

For the following at­mospheres

– Propane C3H
– Butane C4H

4

8

10

When using

Device with­out TG8 car-

rying bag

– Hydrogen sulphide H2S

II2G Ex d e ib IIC T4 Gb – Methane CH

– Propane C3H
– Butane C4H

4

8

10

Device with
TG8 carrying

bag

– Hydrogen sulphide H2S
– Hydrogen H

2

EC type-examination certicate: TÜV 07 ATEX 553353 X

WARNING!

It is essential to observe the following points to en-

sure that the device is explosion-proof:

– Always open the battery compartment and re-

charge the batteries outside the explosive area.

– Always use the USB port outside the explosive

area.

– Always use the appropriate type of disposable/

rechargeable battery.

– To ensure that the device complies with explo-

sion-proof group IIC with hydrogen H

, it must be

2

used in carrying bag TG8.

6

3 Operation

3.1 General information on operation

3.1.1 Keys and jog dial

The ON/OFF key is the only control on the device that does not

change its function.

When switched on, the device is operated using the jog dial and

function keys to navigate the display.

Control Action Function
ON/OFF key Press z Switches the device on

z Switches the device off

Function keys
F1, F2, F3

Jog dial Turn z Selects functions, settings,

Press z Variable

z As indicated on the display at

the bottom of the screen

z Function keys may also have

no function assigned in some
cases.

measurement data, etc.

z Modies values

Press z Opens the next program level

(e. g. menu item, function,
measurement data, selectable

values)

z Applies values

3 Operation

7

3 Operation

3.1.2 Selecting / exiting menus and menu items

Functions and settings etc. are selected via the main menu (for

short: menu). This menu has submenus and menu items. Refer
to Section 3.2.1 for information on accessing the main menu.

Selecting submenus / menu items

Submenus and menu items are selected and opened using the

jog dial and/or the function keys (see Section 3.1.1).
The name of the selected menu or menu item is always shown

at the top left of the display.

Exiting menus / menu items

There are generally two ways to exit open menus / menu items
and return to the next level up:

z Press Esc.
z Select Back from the menu.

3.1.3 Switching on the device

Note:

Always switch the device on with fresh air.

z Press the ON/OFF key. The device switches on.

A visual and audible signal conrm that the device has been
switched on. The display and the pump come on.

The start screen appears on the display.

8

3 Operation

Display:

– Device type: Multitec 540
– User:

Frank Smith
City council

– Firmware version: V1.000
– Date and time

Fig. 3: Start screen

An overview of the gases that can be detected will then appear
briey.

Display:

– Symbol: Gas measuring
– Detectable gases
– Measurement ranges
– Battery capacity

Fig. 4: Overview of detectable gases

The device switches to measuring mode.

Display:

– Current readings: zero when

device is switched on with fresh
air

Fig. 5: Measuring mode – Display of current readings

The device is ready for use.

9

3 Operation

3.1.4 Differences between measuring mode and settings mode

The device is operated in two modes:

z Measuring mode (see Section 3.2)

Measurements are taken in measuring mode. All functions

needed to take readings can be accessed from one menu.

z Settings (see Section 3.3)

The device settings can be changed in settings mode. Informa­tion about the device can also be retrieved. Readings cannot
be taken in settings mode.

Settings are accessed via the menu in measuring mode. The

settings are access-protected by a PIN code.

10

3 Operation

3.2 Measuring mode

When switched on (see Section 3.1.3), the device is in measuring

mode. In measuring mode, the current measurements are always

displayed (see Fig. 5).

3.2.1 Accessing the menu (measuring mode menu structure) In measuring mode the menu can be accessed with F1.

Zero point

Gas measuring

Settings

Save measurement

Protocol

Device inspection

Device information

Exit

Fig. 6: Menu with submenus (menu items)

Device inspection only appears in the menu when the integrated

device inspection is switched on (see Section 5.1.1.4).

3.2.2 Zero point

The zero point only has to be set manually if the displayed fresh air
measurement is not zero after the end of the warm-up period.

Requirements for correct setting of the zero point

− Device was switched on with fresh air.

− Device continues to draw in fresh air.

z Press Menu.
z Select Zero point from the menu. The values are automatically

adjusted. The device returns to measuring mode.

11

3 Operation

Fresh air contains:

− Oxygen O

: 20.9 % vol.

2

− Carbon dioxide CO

After the zero point has been set, 20.9 % vol. will therefore ap­pear for oxygen. Due to the resolution of the measuring range
the value for carbon dioxide will be 0 % vol..

The manual zero point setting is not saved. The zero point can
be corrected as often as zero point deviations occur (see Sec­tion 5 .2).

3.2.3 Gas measuring

You can nd an overview of the detectable gases under Gas
measuring in the menu (see Fig. 4). The device automatically

returns to measuring mode.

3.2.4 Settings

You can change the device settings and access information about
the device under Settings in the menu (see Section 3.3).

: 0.04 % vol.

2

3.2.5 Saving a measurement The current measurement values are saved using Save measu-

rement. Measurement les can be displayed on a computer using
a readout program.

The program is available at www.sewerin.com.

z Press Menu.
z Select Save measurement from the menu.

Note:

If the current measurement values are stable, the
Save symbol will appear. You can then also save
the measurement values using the appropriate
function key.

12

3 Operation

z If necessary, enter a comment on the measurement.

− Select the characters required using the jog dial. Conrm

each character using the jog dial.

OR

− Press Open saved comment. A list of the saved comments

will appear. Select the desired comment. Open the comment
with OK.

Note:

Comment entries are saved automatically. The last
10 comments entered (maximum) will be saved.
Once the rst comment has been entered, the Open

saved comment function will become available.

z Conrm your entry/selection with OK. The comment is saved

together with the protocol name (date, time).

Note:

If you do not need to enter a comment, you can also
skip the input eld by pressing Esc. The measure­ment is still saved.

3.2.6 Protocols You can retrieve or clear protocols of saved data under the Pro-

tocols menu item. When saved, the protocols are assigned to

different protocol types.

The following protocol types are available:

z Device inspection
z Measurements

Protocols can only be cleared individually.

You can nd information on how to clear all protocols of the same

protocol type in Section 3.3.6.

13

3 Operation

3.2.7 Device inspection Device inspection only appears in the menu when the integrated

device inspection is switched on. The device inspection can be
used to check the general status and the indication accuracies.

Note:

The integrated device inspection is switched off in
the factory settings. More detailed information about
the device inspection can be found in Section 5.1.

If the integrated device inspection is switched on, the device will
remind you every 3 months to perform a device inspection.

The symbol will appear when the device inspection

is due. It is visible in the display until the complete
integrated device inspection has been carried out
successfully.

3.2.8 Device info The following device information is shown under Device infor-

mation in the menu.

z Installed electrochemical sensors:

gas, installation date, warranted/expected lifetime

z Firmware:

version, date

z Service:

date of the last service, date of the next service

14

3.3 Settings

The following menus and menu items are included under Settings
(see Sections 3.3.3 to 3.3.6):

z Adjustment

z System
z Date/time
z Memory

You can nd information on selecting and exiting menus and menu
items in Section 3.1.2.

3.3.1 Opening Settings

z Press Menu.
z Select the Settings menu item.

Access is protected by a PIN code. The default setting is always
PIN code 0001.

After opening Settings, you can change the PIN code (see Sec­tion 3.3.4). It is advisable to set a different PIN code after initial

start-up, so only authorised personnel have access to the set­tings.

3 Operation

z Enter the PIN code from left to right. The active digit is always

displayed with a black background.

Digit To change: To conrm:
1st digit

Push the jog dial.

2nd digit Push the jog dial.
3rd digit Push the jog dial.

Turn the jog dial.

4th digit

If the PIN code has been entered correctly, the Settings menu

will appear once the last digit has been conrmed (see Fig. 7).

Otherwise the device will revert to measuring mode.

15

3 Operation

Adjustment
System
Date/time
Memory
Exit

Fig. 7: Settings menu

3.3.2 Settings menu structure

Settings Adjustment Adjustment CH4

Measuring mode

PIN Code

Adjustment CO2
Adjustment O2
Adjustment H2S
Test gas
Inspection OK
Exit

System PIN Code

Service interval
Display
Battery
Autostart
Device inspection
Reset
Language
Exit

Date/time

Memory Clear

Interval
Memory mode
Exit

Exit

Fig. 8: Multitec 540 Settings menu structure

16

Note:

The number and names of available menu items

depend on the device model and optional additional
equipment.

3.3.3 Adjustment

The Adjustment menu is used to set the sensors.

More detailed information about adjustment can be found in Sec­tion 5.2.

CH4 adjustment

Adjusts the infrared sensor for methane CH

range.

CO2 adjustment

Used to adjust the infrared sensor for carbon dioxide CO2 in the
% vol. range.

3 Operation

WARNING!

The device must only be adjusted by specialist

technicians in well ventilated rooms or in the open
air. Incorrect adjustment can lead to incorrect meas­urement results.

in the % vol.

4

O2 adjustment

Adjusts the electrochemical sensor for oxygen O2 in the % vol.

range.

H2S adjustment

Adjusts the electrochemical sensor for hydrogen sulphide H2S

in the ppm range.

Test gas

Adjusts the concentration of the test gases used.

Inspection OK

Conrms the device is in proper working order. This extends the

service interval.

17

3 Operation

3.3.4 System

General information and specications for operation are set in

the System menu.

PIN code

Used to change or reset the PIN code.

Service interval

Specify the regular inspections/maintenance required for the de­vice. You can also activate the automatic switch-off function once
the set interval has passed.

Note:
If the PIN code is set to 0000, you will not be asked

to enter the PIN code. The settings can then be ac­cessed by anyone.

If you lose the PIN code, you must contact SEWERIN

Service.

18

Display

Used to set how long the display remains illuminated after any
button is pressed as well as the display contrast.

Battery

Used to set the type of disposable/rechargeable battery used.

CAUTION!

The disposable/rechargeable battery type setting

must always be correct to prevent damage to the
device.

Autostart

This setting cannot be changed.

Device inspection

Switches the integrated device inspection on and off.

Reset

Use to reset the device settings to the factory settings.

Language

Sets the language.

3.3.5 Date/time

Used to set the time, day, month, and year. There are two formats

available for the date.

3.3.6 Memory

The Memory menu is used to specify how measurement data

and protocols are handled.

Clear

Used to clear protocols.

The two different protocol types must each be cleared separately.
All protocols in one protocol type are cleared at once.

You can nd information on clearing individual protocols in Sec­tion 3.2.6.

3 Operation

Interval

Set the interval at which measurement data is automatically
saved.

Memory mode

Switches between ring memory and stack memory.

19

4 Power supply

4 Power supply

This device can be operated using:

z Disposable (non-rechargeable) alkaline batteries
z Rechargeable NiMH batteries

The device comes with nickel metal hydride rechargeable batter­ies. The corresponding settings are stored.

WARNING!

The device must not be used with leaking batter­ies. Replace the disposable/rechargeable batteries.
Clean the battery compartment (and, if necessary,

the device) before inserting the new disposable/

rechargeable batteries.

4.1 Suitable disposable/rechargeable battery types

WARNING!

To ensure that the device remains explosion-proof

as per /6/, only the following disposable/recharge-

able batteries may be used:

– Batteries supplied by SEWERIN
– Others offered by SEWERIN, provided observ-

ance as per /3/ is guaranteed.

The battery types used in one battery compartment

must always be identical in terms of sort (disposable/

rechargeable), capacity and manufacturer.

20

Disposable battery requirements

z Alkaline disposable batteries
z Battery size: AA, Type: LR6 as per /4/
z The creepage distance and air gap between the poles must

not be less than 0.5 mm in accordance with /3/.

Rechargeable battery requirements

z NiMH rechargeable batteries
z Battery size: AA, Type: HR6 as per /5/
z The creepage distance and air gap between the poles must

not be less than 0.5 mm in accordance with /3/.

z The rechargeable batteries must be fast charging (I > 1.25 A)

and remain within the temperature range.

CAUTION!

A device operated with disposable alkaline batteries
cannot be charged. A notice to this effect is shown

on the display.

4.2 Operation with rechargeable batteries

The operating time of the device depends on the battery capac­ity.

If the device is not used or not kept in the docking station, the

rechargeable batteries will lose their charge after 30 days at the
latest ( self-discharge).

4 Power supply

4.2.1 Charging

The device can be charged via:

z Connection for power supply
z Docking station TG8

For charging you will need either:

z AC/DC adapter M4
z Vehicle cable M4

Please note the following points:

z The device/docking station must not be directly connected to a

24-V on-board power supply in the vehicle. The voltage is too

high for the charging process.

z The battery should be charged at approximately room tem-

perature.

21

4 Power supply

z Short operating times and long periods out of use can reduce

the available battery capacity (memory effect).

4.2.2 Rechargeable battery servicing

If the device is not used for a long period of time, it is recommend­ed to fully discharge the battery before recharging it again.

WARNING!

The device must only be discharged outside of the

explosive area.

z Connect the device (switched on) to the power supply via the

side connection

OR

z Place the device (switched on) into the docking station.

The rechargeable batteries will be fully discharged. Once the

device has been discharged, it will automatically switch to
charging mode.

A full discharging and recharging process takes approx. 11 hours
(8 hrs discharging + 3 hrs. recharging). The duration depends

on the capacity of the batteries used.

4.3 Battery alarm

As soon as the remaining capacity of the disposable/recharge­able battery gets low, a battery alarm will go off:

Level 1: Disposable/rechargeable battery almost empty:

Level 2: Disposable/rechargeable battery empty:

22

– Capacity of disposable/rechargeable battery

symbol ashes

– Audible signal (one-off)
– Remaining operating time: approx. 15 min

– Blank display apart from Capacity of disposable

battery/rechargeable battery symbol

– Continuous audible signal
– Measuring mode unavailable
– Device shuts off

4.4 Replacing disposable/rechargeable batteries

WARNING!

Disposable/rechargeable batteries must always be

replaced outside of the explosive area.

A 2.5 mm Allen key (supplied) is required to open the battery

compartment on the back of the device.

z Loosen the two screws securing the battery compartment.

Remove the screws by repeatedly turning each one a short
distance in alternation; this ensures that the battery compart­ment does not twist.

z Lift out the battery compartment.

z Remove the disposable/rechargeable batteries and insert new

ones. Ensure that the batteries are inserted with the correct

polarity.

z Replace the battery compartment so it ts neatly into place and

secure rmly with the screws.

z When you switch the device back on again, you will be asked

which battery type is in use. Enter the correct battery type.

If it takes longer than 120 seconds to change the batteries, the

date and time will have to be reset the next time you switch the

device on. All the other data will be saved.

4 Power supply

23

5 Maintenance

5 Maintenance

In accordance with the legal regulations, device maintenance

comprises the following elements:

z Device inspection including test of indication accuracy
z Adjustment

z Servicing

All inspections must be documented. The documentation must

be retained for at least one year.

5.1 Device inspection

5.1.1 General information on the device inspection

5.1.1.1 Scope

The device inspection includes the following tests:

z Analysis of the general status (see Section 5.1.3)
z Test of the indication accuracy with supply of fresh air (see

Section 5.1.4)

z Test of the indication accuracy with supply of test gas (see

Section 5.1.5)

5.1.1.2 Frequency

The device inspection must be carried out at intervals ranging
from once a week to every six months /2/.

If the integrated device inspection is switched on, the device will
remind you every 3 months to perform a device inspection.

5.1.1.3 Documentation

The device inspection procedure must be documented. There
are two ways of doing this:

z On paper

z Saved electronically supported by the device (integrated de-

vice inspection)

24

Only the integrated device inspection is described in these op­erating instructions.

Note:

The device inspection must be documented on pa­per if the integrated device inspection is switched
off.

5.1.1.4 Integrated device inspection

Note:

The integrated device inspection is switched off in

the factory settings.

The results of the integrated device inspection are stored in the
device as a protocol. They can be displayed on a computer using

a readout program.

This symbol appears in the display when a device

inspection is due. It is visible in the display until the
complete integrated device inspection has been car­ried out successfully. If the device inspection was
completed but the device failed on some points (not

OK), the symbol will remain visible.

5 Maintenance

Switching on the device inspection

z Press Menu.
z Select Settings.
z Enter your PIN code.
z Select System.
z Select device inspection.
z Select Yes.
z Apply the setting with OK.
z Exit the Settings with Back.

25

5 Maintenance

5.1.1.5 Sequence

You can carry out the tests that make up the device inspection in
any order you wish. You can repeat the tests as often as you wish
provided you have not yet concluded the device inspection.

5.1.2 Performing the device inspection

5.1.2.1 Accessing the device inspection

The device is in measuring mode.

z Press Device inspection.

The Device inspection menu appears.

Note:

If the device inspection is accessed via the menu,
you must also conrm Bar holes/measuring in the
menu with OK.

General status

Fresh air

Test gas CH4

Test gas CO2

Test gas H2S

Fig. 9: Device inspection menu

26

Please note that Test gas H2S only appears in the menu if the

device is congured for this particular gas type.

z Select a test from the menu (General status, Fresh air, Test

gas…).

Note:

The number and names of the available menu items

depend on the device features.

z Carry out the test.

For detailed information, refer to the following sections:

− General Status Section 5.1.3

− Fresh air Section 5.1.4

− Test gas … Section 5.1.5

5.1.2.2 Concluding the device inspection

After all the tests have been carried out as described in Sec­tions 5.1.3 to 5.1.5, the Save symbol will appear in the display.
The device inspection can be concluded.

z Press Save.
z If necessary enter the name of the inspector.

− Select the characters required using the jog dial. Conrm

each character using the jog dial.

OR

− Press Open saved inspector. A list of the saved inspectors

will appear. Select the desired inspector. Open the inspec­tor with OK.

5 Maintenance

Note:

Inspector entries are saved automatically. The last
10 inspectors entered (maximum) will be saved.
Once the rst inspector has been entered, the Open

saved inspector function will become available.

z Conrm your entry/selection with OK.
z Enter a password if necessary. Select the characters required

using the jog dial. Conrm each character using the jog dial.

z Conrm your entry with OK. The device inspection is saved as

a protocol. A comprehensive overview with the device inspec-

tion results is displayed.

z Conrm the overview by pressing OK. The device returns to

measuring mode.

27

5 Maintenance

The device inspection protocols can be opened at any time (see
Section 3.2.6). The number is limited to a maximum of 40.

Note:

If you do not need to enter an inspector or a pass­word, these input elds can be skipped by press­ing Esc. The device inspection is still saved as a
protocol.

28

5.1.3 Testing the general status

The general status test is part of the device inspection (see Sec­tion 5.1.1.1). It is based on estimations by the user. The following
must be tested:

z Housing

z Signals

z Probe

z Filter

z Pump

The battery charge status and the working condition of the com­ponents are automatically tested during the integrated device
inspection.

z Select General status from the Device inspection menu.
z Test all associated subitems as described in Sections 5.1.3.1

to 5.1.3.5.

z Conrm the prompt General status OK? by pressing Yes if

all subitems show no faults during testing. General status OK

appears on the display.

5 Maintenance

5.1.3.1 Housing

z Is the housing free from external damage?

5.1.3.2 Signals

During the integrated device inspection the signals are emitted

at short intervals.

z Can the audible signal be heard?

z Is the visual signal visible?

5.1.3.3 Probe

Probes are accessories. They must only be tested if they are

likely to be used in the course of the work day.

z Are the probes free from external damage?

Probe hoses are tested with a simple leak-tightness check.

29

5 Maintenance

z Connect the probe hose to the gas input.

z Seal the free end of the probe hose.

An error message should appear after approximately 10 sec­onds. This indicates that the probe hose is in good condition.

5.1.3.4 Filter

Thene dust lter is located behind the gas input. It is tested by

means of a visual inspection.

z Unscrew the gas input.
z Remove the ne dust lter.
z Check that there is no dirt in the ne dust lter.

As soon as there are any signs of depositing, the lter must
be replaced. If you do not replace the lter, you must reinsert

it exactly as it was removed.

5.1.3.5 Pump

The pump function is tested with a simple leak check.

z Seal the gas input.

After a maximum of 10 seconds an error message should ap­pear. This indicates that the pump is working correctly.

If the error message does not appear, the pump may be faulty.

The device must be tested by SEWERIN Service.

z Release the gas input again.

After approximately seconds, the error message should disap­pear again. Otherwise there is an error (see Section 6).

30

5 Maintenance

5.1.4 Testing indication accuracy with supply of fresh air

The indication accuracy with supply of fresh air test is part of the
device inspection (see Section 5.1.1.1).

Ensure that the fresh air used for testing is sufciently pure.

z Select Fresh air from the Device inspection menu.
z Wait until the displayed readings are stable. A Status: OK

message appears.

z Press OK to conrm. Fresh air OK appears on the display.

If the Status: OK message does not appear within a reasonable

amount of time, the air inow does not correspond to the limit
values stored in the device (see Section 7.2). Move the device

somewhere else and repeat the test.
If the Status: OK message still does not appear when the test is

repeated, the device must be re-adjusted (see Section 5.2).

5.1.5 Testing indication accuracy with supply of test gas

The indication accuracy with supply of test gas test is part of the
device inspection (see Section 5.1.1.1).

z Select the gas to be tested (test gas CH4, test gas CO2, test

gas H2S) from the Device inspection menu.

z Check whether the test gas concentration specied by the

device matches the test gas you intend to use. Press Infor-
mation.

z Add the gas to be tested. Connect the test gas to the gas in-

put.

z Wait until the displayed readings are stable. A Status: OK

message appears.

z Press OK to conrm.

z Remove the test gas.

If the Status: OK message does not appear within a reasonable

amount of time, the following causes are possible:

31

5 Maintenance

Cause Corrective action

Connections leaking Repeat check, checking for the

Measurement values outside
the specied limit values
(see Section 7.2)

Changing the test gas

If no test gas with the specied concentrations is available for the

test, the values can be changed accordingly under Test gas in

the adjustment menu (see section 3.3.3).

seal on the connections

Adjustment required
(see Section 5.2)

Note:

The Test gas OK message only appears when all
the test gases specied in the device inspection

have been successfully tested.

32

5.2 Adjustment

5.2.1 Scope

The following are adjusted:

z Zero point
z Measuring range sensitivity

It is not essential to adjust all gases during adjustment. Every gas

must be adjusted separately.

5 Maintenance

WARNING!

The device must only be adjusted by specialist

technicians in well ventilated rooms or in the open
air. Incorrect adjustment can lead to incorrect meas­urement results.

CAUTION!

Always adjust the zero point rst, followed by the

sensitivity.

5.2.2 Preparation

Carrying out an adjustment always takes some time. Leave your­self plenty of time to prepare the necessary steps of the proce-

dure. Have all necessary tools available. Let the device run for

several minutes, to guarantee, for example, that the temperature
is right.

5.2.3 Carry out adjustment

Adjustment of the zero point and the sensitivity is carried out fol­lowing the same procedure for all gases (see Sections 5.2.3.1
and 5.2.3.2). The adjustment of oxygen is an exception. For this
reason it is described separately (see Section 5.2.4).

33

5 Maintenance

You can access detailed information on the adjust­ment of the various gases (for example, test gas,
installation date of the sensor, or date of the last ad-

justment) under Information.
This symbol appears after the respective Adjust-

ment … has been selected from the menu.

5.2.3.1 Adjusting the zero point

For all gases except oxygen O
ing the same procedure.

Note:

When adjusting the zero point of carbon diox­ide CO

, a carbon dioxide lter must be used.

2

z Select the desired adjustment from the Adjustment menu

(for example, CH4 adjustment).

z Wait at least 1 minute. The displayed reading must be stable.
z Select Zero point from the menu (select and conrm with OK).

This adjusts the zero point. The reading shows zero (0.00 %
vol. or 0 ppm).

, the zero point is adjusted follow-

2

5.2.3.2 Adjusting sensitivity

For all gases except oxygen O
ing the same procedure.

A test set (such as SPE VOL) is required for adjusting the sen­sitivity.

Note:

When adjusting the sensitivity, never use a carbon
dioxide lter.

34

, the sensitivity is adjusted follow-

2

z Connect the device to the test set.

To do so, follow the steps indicated in the test set operating

instructions.

z Select the desired adjustment from the Adjustment menu

(for example, CH4 adjustment).

z Select the menu item that species the sensitivity to be tested

(for example, 100 % VOL CH4). Do not yet conrm with
OK.

z Press and hold the release button on the test set. The test gas

is added. Do not let go of the release button.

z Wait at least 1 minute. The displayed reading must be stable.
z Press OK to conrm. The device is adjusted. The reading shows

the specied value (e. g. 100 % vol. CH

z Let go of the release button on the test set.

5.2.4 Carrying out oxygen adjustment

As oxygen is a component of fresh air, the procedure for adjusting

oxygen is different than the procedure for all other gases.

5 Maintenance

).

4

5.2.4.1 Adjusting the zero point for oxygen

The zero point for oxygen must be adjusted using an inert gas

which contains no oxygen and does not damage the sensor.

For example, suitable test gases include 100 % vol. CH
100 % vol. N2.

A test set (such as SPE VOL) is required for adjusting the zero

point.

z Connect the device to the test set.

To do so, follow the steps indicated in the test set operating

instructions.

z Select Adjustment O2 from the Adjustment menu.
z Select Zero point from the menu. Do not yet conrm with

OK.

z Press and hold the release button on the test set. The test gas

is added. Do not let go of the release button.

z Wait at least 1 minute. The displayed reading must be stable.

or

4

35

5 Maintenance

z Press OK to conrm. The device is adjusted. The reading shows

zero (0.0 % vol.).

z Let go of the release button on the test set.

5.2.4.2 Adjusting the sensitivity for oxygen

The sensitivity of oxygen is adjusted with fresh air.

z Select Adjustment O2 from the Adjustment menu.
z Wait until the displayed reading is stable. (The reading may

still ash.)

z Select 20.9 % VOL (fresh air) from the menu (select and con-

rm with OK). This adjusts the sensitivity. The reading shows

20.9 % vol.

36

5.3 Servicing

The device must only be serviced and repaired by SEWERIN

Service.

z Send the device to SEWERIN for repairs and for annual main-

tenance.

Fig. 10: Inspection plate

5 Maintenance

Note:

If there is a service agreement in place, the device
can be serviced by the mobile maintenance serv­ice.

The inspection plate on the device shows con­rmation of the last maintenance and the next
scheduled maintenance (for example, 5/02 = May

2002).

37

6 Faults

6 Faults

If a fault occurs during operation, an error message will appear
on the screen.

Error messages are displayed in the order in which they occur.
Up to 5 errors can be displayed. Error messages continue to be

displayed until the error is corrected.

Overview of possible error messages

Error code Error message on the

display

9 No calibration

IR sensor adjustment

10 Adjustment failed

Test gas

52 XFLASH

SEWERIN Service

59 Error unknown

SEWERIN Service

62 IR sensor Error can only be corrected by

100 Pump error

Probe / lter

200 I2C HOST – IR

SEWERIN Service

201 I2C HOST – EC

SEWERIN Service

202 I2C HOST – EX

SEWERIN Service

Error correction

CH

adjustment or CO2 adjustment

4

required (see Section 5.2)

Check test gas

Error can only be corrected by
SEWERIN Service

Error can only be corrected by
SEWERIN Service

SEWERIN Service

Check all lters, probes and hose

connections for porosity and dirt

Error can only be corrected by
SEWERIN Service

Error can only be corrected by
SEWERIN Service

Error can only be corrected by
SEWERIN Service

38

7 Appendix

7.1 Specications and permitted operating conditions

7 Appendix

Dimensions
(W × D × H):

Approx. 148 × 57 × 205 mm
Approx. 148 × 57 × 253 mm with supporting

bracket

Weight Approx. 1000 g,

depending on equipment

Operating position: Any
Protection rating IP54
Power supply: 4 cells, either:

– Rechargeable batteries: NiMH
– Disposable batteries: Alkaline

Operating time At least 8 h
Charging time for re-

chargeable batteries:

Approx. 3 h (fully charged)

depending on capacity

Charging voltage: 12 V DC (max. 1 A)
Operating temperature: -20 ºC – +40 ºC
Storage temperature: -25 ºC – +60 ºC
Pressure: 800 – 1100 hPa

Permissible relative

5 – 90 % r.h., non-condensing

humidity:
Sensors: – IR for CH

, CO

4

2

Optional:

– EC for O2, H2S

Warm-up time: – < 30 s

– Up to 90 s for EC
PC connection: USB
Data memory: 8 MB
Display: 320 × 240 pixels
Buzzer: – Frequency: 2.4 kHz

– Volume: 80 dB (A) / 1 m
Signal light: Red
Pump capacity: – Vacuum: > 250 mbar

– Volume ow: Typically 50 l/h ±20 l/h
Pressure at gas input: – 100 mbar, maximum
Operation: – ON/OFF key

– Jog dial

– 3 function keys

39

7 Appendix

7.2 Limit values for the device inspection

Gas Zero point Sensitivity

Specication Deviation Specication Deviation

0.00 % vol. ±2 % vol. 100 % vol. ±5 % vol.

CH

4

0 % vol. ±2 % vol. 100 % vol. ±5 % vol.

CO

2

0 % vol. ±0.5 % vol. 20.9 % vol. ±0.5 % vol.

O

2

S 0 ppm ±10 ppm 40 ppm ±10 ppm

H

2

7.3 Memory capacity

The total memory capacity of the device is divided up as fol­lows:

Protocol type Max. storable protocols

Device inspection 40
Measurement 80

40

There is a choice of two memory modes (see Section 3.3.6). The

selected memory mode applies for all protocol types.

7.4 Sensors

Note:

Probes increase the stated response times.

7.4.1 Infra red sensors (IR)

7 Appendix

7.4.1.1 Methane CH

4

Type: Infrared sensor
Measuring range: 0 – 100 % vol.
Measuring error CH4: ±1.5 % vol.
Response times: t
Temperature range: -20 ºC – +40 ºC
Interference: All hydrocarbons C
Lifetime:

– Warranted
– Expected

Test gases:

– Zero point
– Sensitivity

7.4.1.2 Carbon dioxide CO2

Type: Infrared sensor
Measuring range: 0 – 100 % vol.
Measuring error: ±1.5 % vol.
Response time: t90 < 20 s
Temperature range: -20 ºC – +40 ºC
Interference: None known
Lifetime:

– Warranted
– Expected

Test gases:

– Zero point
– Sensitivity

< 9 s t90 < 17 s

50

2 years
5 years

Fresh air

100 % vol.

2 years
5 years

Fresh air

100 % vol. CO

2

xHy

41

7 Appendix

7.4.2 Electrochemical sensors (EC)

7.4.2.1 Oxygen O

2

Type: Electrochemical sensor
Measuring range: 0 – 25 % vol.
Resolution: 0.1 % vol.
Measuring error: ±3 % or ±0.3. % vol. (±3 digits)
Response time: t
Drift: < 2 % within 3 months
Temperature range: -20 ºC – +40 ºC
Interference: None known
Lifetime:

– Warranted
– Expected

Test gases:

– Zero point
– Sensitivity

7.4.2.2 Hydrogen sulphide H2S

Type: Electrochemical sensor
Measuring range:

– Lower limit
Resolution: 2 ppm
Measuring error: ±3 % or ±6 ppm (±3 digits)

Zero point deviation: 2 ppm
Response time: t
Decay time: t10 < 27 s
Drift: < 10 % within 6 months
Temperature range: -20 ºC – +40 ºC
Interference at 20 ºC

– 100 ppm CO

– 1 % vol. H

– 100 ppm NO

Lifetime:

– Warranted

– Expected

Test gases:

– Zero point

– Sensitivity

2

2

< 15 s

90

2 years

3 years

100 % vol. CH

or 100 % vol. N

4

Fresh air (20.9 % vol.)

0 – 2000 ppm
2 ppm

±4 ppm (long-term stability)

< 30 s

90

Approx. 2 ppm H2S
Approx. 10 ppm H2S
Approx. 4 ppm H2S

1 year
> 2 years

Fresh air

40 ppm H2S

2

42

7.5 Technical information

7.5.1 Identication sticker (back of device)

The symbols on the sticker mean the following:

Always open battery compartment outside

the explosive area.

Read the operating instructions.

7.5.2 Cleaning

The device must only be cleaned with a damp cloth.

CAUTION!

Do not use solvents, petrol or cockpit spray con­taining silicone or similar substances to clean the
device!

7 Appendix

7.5.3 Electrostatic charge

Avoid electrostatically charging the device. Electrostatically

unearthed objects (e. g. including metallic housing without an

earth connection) are not protected against applied charges (e.g.
through dust or dispersed ows).

CAUTION!

To prevent electrostatic charging when working with

hydrogen H

, always use carrying bag TG8.

2

43

7 Appendix

7.6 Accessories:

Docking station TG8

Art. no.: LP11-10001

z For charging, operating and

holding one device

z Includes locking mechanism to

prevent unit falling out

z AC/DC adapter or vehicle ca-

ble required for charging and
operation

AC/DC adapter M4

Art. no.: LD10-10001

z 100 – 240 V~ / 12 V=

44

Vehicle cable M4

Art. no.: ZL07-10100

z 12 V= mobile, with built-in fuse

and cigarette lighter adapter

z For mobile use in a vehicle

Vehicle cable M4

Art. no.: ZL07-10000

z 12 V= mounting, includes

built-in fuse and female spade
connectors

z permanently connects unit to

the vehicle electrical system

7 Appendix

Vehicle cable M4

Art. no.: ZL09-10000

z 24 V= mounting, includes volt-

age converter and female
spade converters

z permanently connects unit to

the vehicle electrical system

Carrying system "Vario"

Art. no.: 3209-0012

z Two adjustable carrying straps

with quick release buttons and
padded straps

z Can be worn around the neck

or as a chest harness.

Carrying bag TG8

Art. no.: 3204-0040

z Leather, with viewing panel

and openings for connections,
jog dial and securing the car­rying systems

z Easily tted thanks to Velcro

fastener

z Can be used in explosive

areas

45

7 Appendix

Case TG8-RÜ

Art. no.: ZD29-10000

z With built-in compartments
z Allows for charging from the

outside

z Holds:

– Multitec 540
– Docking station TG8
– AC/DC adapter M4
– Probe hose 1 m, 2 m or 6 m
– Flexible handheld probe
– Bell jar probe
– Pinpointing probe
– Floating probe
– 100 ne dust lters
– etc.

46

Compact case TG8

Art. no.: ZD31-10000

z With built-in compartments
z Holds:

– Multitec 540
– Docking station TG8
– AC/DC adapter M4
– Probe hose 1 m, 2 m or 6 m
– Flexible handheld probe
– Floating probe
– 100 ne dust lters
– etc.

7 Appendix

Flexible handheld probe

Art. no.: ZS32-10000

z 360 mm long

z Flexible tip with handle for

leak detection in two-handed
operation

z Probe hose 1 m required

Probe hose

Art. no.: ZS25-10000 (example)

z With hydrophobic filter and

quick connects

z Various lengths available

Gas sample connection
installation set

Art. no.: MG04-Z1000

z For taking gas samples using

measuring devices with a built­in pump

z For draining off the conden-

sate in the gas sampling tube
in the case of warm gas sam­ples

z For reproducible measure-

ment results

z Pressure max. 100 mbar

47

7 Appendix

Test set SPE VOL

Art. no.: PP01-90101

z For testing and adjusting the

display sensitivity in the LEL
and % vol. range and for test-

ing the pump capacity

z Includes connection for all

SEWERIN test gas cans

z Manometer (0 – 16 bar) for

displaying the test gas can
pressure and flowmeter

(0 – 80 l/h)

Universal test head

Art. no.: PP01-B1700

z Used to connect the sensor

head to the test set

48

Fine dust lter

Art. no.: 2499-0020

z Suitable for the various probes

and the suction pipe end on
pump devices

z 100 units

Hydrophobic lter

Art. no.: 2491-0050

z Suitable for all probe hoses
z 1 unit

7 Appendix

Rechargeable NiMH battery

Art. no.: 1354-0009

z AA, HR6, 1.2 V 2700 mAh

Disposable alkaline battery

Art. no.: 1353-0001

z AA, LR6, 1.5 V

Other accessories are available for the device. Please contact
our sales department for further information.

49

7 Appendix

7.7 Declaration of conformity

Hermann Sewerin GmbH hereby declares that the

Multitec

®

520 fulls the requirements of the following guidelines:

z 2004/108/EC

z 94/9/EC

This product is labelled with:

− II2G Ex d e ib IIB T4 Gb

When the carrying bag for the accessories is used, the following
explosion-proof group applies:

− II2G Ex d e ib IIC T4 Gb

EC type-examination certicate:

− TÜV 07 ATEX 553353 X

Gütersloh, 2011-08-01

50

Dr. S. Sewerin (CEO)

The complete declaration of conformity can be found online.

7.8 Inspection protocol

g

)

)

)

)

–

–

)

–

g

–

–

g

)

–

g

)

–

(

)

–

g

–

(

)

j

y

r

INSPECTION PROTOCOL Multitec® 540

Fab. no. (e.g.: 066 11 0501)

1.0 General Status

1.1 - Housin

1.2 - Fine dust filter correct (e.g.: Y / N

1.3 - Battery capacity (e.g.: ¼

2.0 Pump check

2.1 - Pump error F100 in seal

3.0 Methane CH

3.1 Zero point (fresh air

3.2

4.0 Carbon dioxide CO

4.1 Zero point (fresh air 0.04 % vol.

4.2 Test

5.0 Oxygen O

5.1

5.2 Test

5.3 Test

6.0 Hydrogen sulphide H

6.1 Zero point

6.2 Test

7.0 Comments

8.0 Inspection

correct (e.g.: Y / N

4

Display -2,0 – +2,0 % vol.

Test gas 100 % vol. CH

Display 95 – 105 % vol.

Display -2 – +2 % vol.

as 20 % vol.

Display 15 – 25 % vol.

2

Zero point (test gas 100 % vol. CH

Display -0,5 – +0,5 % vol.

as 17,5 % vol. (optional

Display 17,0 – 18,0 % vol.

as fresh air (20,9 % vol.

Display 20,4 – 21,4 % vol.

fresh air

Display -10 – +10 ppm

as 40 ppm

Display 30 – 50 ppm

- Maintenance required

- Lifetime sensor exceeded
ustment, repair

- Ad

- or similar

- Da

- Month

- Yea

- Signature

4

2

S

2

inspection plate

7 Appendix

01.07.2009

)

4

51

7 Appendix

7.9 Advice on disposal

The European Waste Catalogue (EWC) governs the disposal of

appliances and accessories.

Description of waste Allocated

Device 16 02 13
Test gas can 16 05 05

EWC waste code

Disposable battery,

16 06 05

rechargeable battery

End-of-life equipment

Used equipment can be returned to Hermann Sewerin GmbH. We

will arrange for the equipment to be disposed of appropriately by

certied specialist contractors free of charge.

52

7.10 Terminology and abbreviations

CENELEC z European Committee for Electrotechnical

Standardisation

EC z Electrochemical sensor

7 Appendix

Gas type z Hydrocarbon C

which can be meas-

xHy

ured with the IR

IR z Infrared sensor

NiMH z Nickel metal hydride

ppm z Parts per million

Ring memory z Type of data storage in the device

z If the available storage space is full, the

oldest le is automatically overwritten by
the current le.

Stack memory z Type of data storage in the device

z If the available storage space is full, you

are prompted to confirm whether the

oldest le should be overwritten by the
current le.

VOL z Volume

53

7 Appendix

7.11 Referenced documents

The following standards, guidelines and regulations are referred
to in these operating instructions:

/1/ Bundesverband der landwirtschaftlichen Berufsgenossenschaften

e. V. (Federal Association of Institutions for Statutory Accident Insur­ance and Prevention in the Agricultural Sector): Safety regulations
for agricultural biogas plants (Procedure Document 69)

For reference consult regional agricultural employer's liability insur­ance association

/2/ DVGW G 465-4 Deutsche Vereinigung des Gas- und Wasserfach-

es e. V. (German Association of Gas and Water
Specialists); Regulation G 465-4: Gasspür- und
Gaskonzentrationsmessgeräte für die Überprü­fung von Gasanlagen (Gas-Detection and Gas­Concentration Measurement Devices for Inspec­tion of Gas Systems)
For reference, see: www.dvgw.de

/3/ EN 60079-7:2007

/4/ EN 60086-1

/5/ IEC 60079-20

/6/ 94/9/EC ATEX 100a

54

8 Index

A

Accessories: 44
Adjustment 17, 33

C02 17
CH4 17
Of oxygen 35

Performing 33
Preparation 33
Scope 33
Sensitivity 34

Zero point 34
Adjustment menu 17
Autostart 18

B

Battery 18

Replacing 23

Requirements 20

Setting the type 18
Battery alarm 22

8 Index

Display contrast 18
Display illumination 18
Disposal 52

E

Electrostatic charge 43
Error message 38
Explosion protection 6

F

Factory settings 19
Faults 38
Filter 30
Fine dust lter 30
Function key 7

G

Gas measuring 12
General Status 29

C

Carbon dioxide lter 34

Cleaning 43

Clearing 19
Comment 13

D

Date 19
Device

Switching off 7

Switching on 7
Device info 14
Device inspection 14, 19, 24

Accessing 26

Concluding 27

Documentation 24

Frequency 24

Integrated 25

Limits 40

Performing 26

Scope 24

Sequence 26

Switching on 25
Display 18

H

Housing 29

I

Identication plate 43

Indication accuracy

With fresh air 31

With test gas 31
Inspection OK 17
Interval 19

J

Jog dial 7

K

Keys 7

L

Language 19

55

8 Index

M

Main menu see Menu
Maintenance 24
Measurement

Save 12
Starting 12
Stopping 12

Measuring mode 10, 11

Menu structure 11
Memory 19, 40
Memory mode 19
Menu 8, 11

Exiting 8

Opening 11

Selecting 8
Menu item

Exiting 8

Selecting 8
Menu structure 11, 16

O

Operation 7
Oxygen 35

P

PIN code 15, 18
Power supply 20
Probe 29
Protocols 13
Pump 30

Infrared~ 5, 41

Installation date 14
Service interval 18
Servicing 37
Settings 10, 12, 15

Menu structure 16

Opening 15
Signals 29

Audible 5

Visual 5
Stack memory 19
System 18

T

Test gas

Changing 32
Time 19

U

Use

Intended 3

Z

Zero point 11

Adjusting 34, 35

R

Rechargeable battery 21

Charging 21
Replacing 23
Requirements 21
Self-discharge 21
Servicing 22
Setting the type 18

Ring memory 19

S

Sensitivity

Adjusting 34, 36

Sensors 5, 41

Electrochemical 5, 42

56

Hermann Sewerin GmbH

Robert-Bosch-Straße 3 · 33334 Gütersloh · Germany

Telefon [phone] · Telefax [phone]

www.sewerin.com · [e-mail]

01.08.2011 – 105832 – en