sewerin Ex-Tec OD 4 Bedienungsanleitung
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 efciency. 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.: +49 5241 934-0
Fax: +49 5241 934-444
www.sewerin.com
info@sewerin.com
SEWERIN SARL
17, rue Ampère – BP 211
67727 HOERDT CEDEX, France
Tél. :+33 3 88 68 15 15
Fax :+33 3 88 68 11 77
www.sewerin.fr
sewerin@sewerin.fr
Sewerin Ltd
Hertfordshire
UK
Phone: +44 1462-634363
www.sewerin.co.uk
info@sewerin.co.uk
SEWERIN IBERIA S.L.
Centro de Negocios “Eisenhower”
Avenida Sur del Aeropuerto
de Barajas 28, Of. 2.1 y 2.2
28042 Madrid, España
Tel.: +34 91 74807-57
Fax: +34 91 74807-58
www.sewerin.es
info@sewerin.es
Sewerin Sp.z o.o.
ul. Twórcza 79L/1
03-289 Warszawa, Polska
Tel.: +48 22 675 09 69
Faks: +48 22 486 93 44
Tel. kom. +48 501 879 444
www.sewerin.pl
info@sewerin.pl
Illustration EX-TEC OD 4
EX-TEC OD 4
®
0.0
THT
mg
m3
Sensor head
Attachment
Alarm lamp
LCD
Buzzer
Keypad
Charging contacts
Illustration EX-TEC GM 4
EX-TEC GM 4
®
H2
PPM
1500
Sensor head
Attachment
Alarm lamp
LCD
Buzzer
Keypad
Charging contacts
H2
PPM
1500
Activation
Alarm thresholds Type of gas
Trend bar
Unit
Gas concentration
Battery state
Operating Instructions
20.04.2016 a – V1.XXX – 103955 – en
EX-TEC® OD 4/GM 4
For your safety
This product may only be operated by appropriately-trained persons who
are familiar with the relevant operating manual.
It may only be used for its designated purpose, i.e. for industrial and com-
mercial use.
Repair work may only be carried out by specialists or by persons who have
undergone appropriate training.
Any alterations or modications to the product require the prior approval of
Hermann Sewerin GmbH. In the event of unauthorised alterations to the
product the manufacturer accepts no liability for damage.
Only Hermann Sewerin GmbH accessories may be used with the pro-
duct.
Only spare parts approved by us may be used for repairs.
Hermann Sewerin GmbH accepts no liability for damage resulting from
non-compliance with the foregoing. The guarantee and liability provisions
in the Hermann Sewerin GmbH terms of sale and supply are not extended
by the foregoing.
We reserve the right to make changes in the context of continued techni-
cal development.
In addition to these instructions, please comply with generally applicable
safety and accident-prevention regulations.
Symbols used:
CAUTION:
This symbol warns of dangers that may threaten
the safety of the user or maty damage or destroy
the product.
Note:
This symbol ags information and hints extending
beyond the actual operation of the product .
I
Contents Page
1 EX-TEC OD 4/EX-TEC GM 4 system ......................................1
1.1 The EX-TEC OD 4 system ........................................................1
1.1.1 Before starting work ...............................................................1
1.1.2 The need for gas odorisation .................................................1
1.1.3 Measurement principle...........................................................1
1.1.4 Boundary conditions for measurement and sampling ..............2
1.1.5 EX-TEC OD 4............................................................................3
1.1.6 Test certicates ......................................................................4
1.2 EX-TEC GM 4 system...............................................................5
1.2.1 Test certicates ......................................................................5
2 Safety .......................................................................................6
2.1 Safety instructions.....................................................................6
3 Measuring operation...............................................................8
3.1 Switching on..............................................................................8
3.2 Operating modes..................................................................... 11
3.3 Alarms .....................................................................................16
3.4 Illumination and operating-hours display.................................18
3.5 Battery alarm...........................................................................18
3.6 Switching off............................................................................19
4 Charging and battery operation...........................................20
4.1 Charging and charge maintenance when using NiMH batteries ... 20
4.2 Self-dischargeand battery care ...............................................22
4.3 Battery operation.....................................................................23
4.4 Instruments showing serial number 062 00 ............................24
5 Testing the instrument..........................................................25
5.1 Testing/upkeep ........................................................................25
5.2 Test set....................................................................................27
5.2.1 EX-TEC GM 4 ......................................................................27
5.2.2 EX-TEC OD 4.......................................................................28
5.3 Test gases ...............................................................................29
5.4 Testing the pump, zero point and display accuracy ................30
II
Contents Page
6 Info menu ...............................................................................33
6.1 Menu structure ........................................................................33
6.2 Overview .................................................................................34
7 Adjustment menu..................................................................36
7.1 Menu structure ........................................................................36
7.2 Sensor adjustment ..................................................................36
7.2.1 Setting the H2-sensor ...........................................................36
7.2.2 Setting the O2sensor ...........................................................37
7.3 Setting the test gas concentration...........................................38
7.4 Inspection conrmation ...........................................................40
7.5 Leaving the adjustment menu .................................................40
8 System menu.........................................................................41
8.1 Menu structure ........................................................................41
8.2 Setting the date and time ........................................................42
8.3 Setting the inspection intervall ................................................43
8.4 Setting the inspection block ....................................................46
8.5 Setting the PIN ........................................................................47
8.6 Setting the alarm thresholds ...................................................48
8.7 Setting the user name .............................................................51
8.8 Setting the language ...............................................................53
8.9 Leaving the system menu .......................................................53
9 Hardware menu .....................................................................54
9.1 Menu structure ........................................................................54
9.1.1 EX-TEC GM 4 ......................................................................54
9.1.2 EX-TEC OD 4.......................................................................55
9.2 Setting the battery type ...........................................................56
9.3 Setting the illumination time and contrast ...............................57
9.4 Autostart..................................................................................58
9.5 Range .....................................................................................59
9.6 Changing the sensor ...............................................................59
9.6.1 Gas.......................................................................................60
9.6.2 Sensor installation................................................................60
9.7 Setting pump operation ...........................................................61
9.8 Carrying out an LCD test.........................................................61
III
Contents Page
9.9 Restoring the factory settings..................................................62
9.10 Leaving the hardware menu....................................................63
10 Memory menu........................................................................64
10.1 Menu structure ........................................................................64
10.2 Clearing memory.....................................................................64
10.3 Setting the memory interval ....................................................65
10.4 Leaving the memory menu......................................................65
11 Technical aspects..................................................................66
11.1 Technical notes .......................................................................66
11.2 Technical data .........................................................................68
11.3 Error messages.......................................................................79
11.4 Consumables ..........................................................................80
11.5 Hints on Disposal ....................................................................81
12 Delivery variants and accessories ......................................82
12.1 Delivery variants......................................................................82
12.2 Accessories.............................................................................84
13 Appendix................................................................................90
13.1 EU-declaration of conformity...................................................90
13.2 Inspection protocol ..................................................................91
13.3 EX-TEC OD 4/GM 4 operating instructions in brief.................92
1
1 EX-TEC OD 4/EX-TEC GM 4 system
The EX-TEC OD 4 is a combined warning and measuring instru-
ment for determining odorant concentration. It is available with
either a THT or a TBM sensor.
The EX-TEC GM 4 is a warning and measuring instrument that
detects oxygen and various toxic gases.
1.1 The EX-TEC OD 4 system
1.1.1 Before starting work
Adequate gas odorisation is an important criterion for safe network
operation. Please take careful note of the following information.
1.1.2 The need for gas odorisation
Natural gas is odourless. So that even the smallest leaks in indoor
installations or elsewhere in a gas-distribution network can be
immediately detected, the gas is odorised: a strong-smelling sub-
stance is added to it. The substances used are organic sulphur
compounds and acrylates. The most widespread currently being
tetrahydrothiophene (THT) and tertiary butyl mercaptan (TBM).
DVGW worksheet G 280 sets the minimum values for odorant
concentration at 10 mg of THT / m3 and 3.8 mg of TBM / m3. This
worksheet also requires the operator of a distribution network to
check and document the odorant concentration at least once a
year.
1.1.3 Measurement principle
The EX-TEC OD 4 contains an electrochemical sensor that reacts
to the smallest traces of sulphur compounds. This produces elec-
trical signals, which are then processed by the integral electronic
system. The intensity of the signal varies directly with the strength
of the concentration.
1 EX-TEC OD 4/EX-TEC GM 4 system
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1
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