sewerin EX-TEC PM 4 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 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 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 Ltd
Hertfordshire
UK
Phone: +44 1462-634363
www.sewerin.co.uk
info@sewerin.co.uk
Sewerin Sp.z o.o.
ul. Twórcza 79L/1
03-289 Warszawa, Polska
Tel.: +48 22 675 09 69
Tel. kom.: +48 501 879 444
www.sewerin.pl
info@sewerin.pl
Illustration EX-TEC PM 4
Overview of device
Sensor head Suspension tting
Buzzer
Keypad
Battery charge
contacts
Alarm light
LCD matrix
Liquid Crystal Display
Case / operating
mode
Battery status
Alarm threshold
activation
Trend bar
Gas type
Gas concentration
Unit of measure
Overview
Control keys
Symbols on LCD
Device On/Off
(press and hold for approx. 3 seconds)
Used to enter / conrm selection
(press briey)
Used to switch between applications /
menu item selections
Press and hold one key for 2 seconds:
accesses user menu
Press and hold both keys for 2 seconds:
accesses advanced settings
Display of available operating hours
(5 bars = 5 hours)
Alarm thresholds are activated
Device is in House application
Device is in Enclosed spaces application
Device is in Warning %LEL application
Device is in Measuring VOL% application
Device is in Automatic measuring range
changeover mode
Operating Instructions
EX-TEC® PM 4
20.04.2016 – V2.XXX – 105806 – en
Symbols used
CAUTION! Danger of damages!
This symbol refers to important safety instructions.
Adhere strictly to these instructions to avoid material damages!
Note:
This symbol refers to information and useful tips which
are exceeding the basic operating procedures.
CAUTION! Danger of injuries!
This symbol refers to important safety instructions.
Adhere strictly to these instructions to avoid injuries!
Symbols for the applications:
House
Enclosed spaces
Warning %LEL
Measuring vol%
Contents Page
1 General .....................................................................................1
1.1 Warranty ....................................................................................1
1.2 Purpose .....................................................................................2
1.3 Intended use .............................................................................2
1.4 General safety information ........................................................3
2 Features ...................................................................................5
2.1 Visual signals and audible signals ............................................5
2.2 Measurement principles ............................................................6
2.3 Explosion protection .................................................................. 7
3 Operation .................................................................................9
3.1 General information on operation .............................................. 9
3.1.1 Operator guidance .................................................................9
3.1.2 Operating modes ..................................................................10
3.2 Measuring mode ..................................................................... 11
3.2.1 User menu ............................................................................14
3.2.2 Setting the zero point ...........................................................15
3.2.3 House application .................................................................16
3.2.4 Enclosed spaces application ................................................ 18
3.2.5 Warning %LEL application ...................................................20
3.2.6 Measuring VOL% application ............................................... 23
3.2.7 Function control ....................................................................25
3.2.8 Changing gas types .............................................................26
3.3 Advanced settings ................................................................... 27
3.3.1 Access ..................................................................................27
3.3.2 Menu structure .....................................................................29
3.3.3 Procedure ............................................................................. 30
3.3.4 Info menu .............................................................................32
3.3.4.1 Adjustment menu .............................................................. 32
3.3.4.2 System menu .................................................................... 33
3.3.4.3 Hardware menu.................................................................38
3.3.4.4 Memory menu ................................................................... 41
3.4 Connecting accessory devices ................................................ 42
I
Contents Page
4 Charging and battery operation ........................................... 43
4.1 General information on charging and battery operation .......... 43
4.1.1 Suitable types of rechargeable and disposable batteries .....43
4.1.1.1 Devices with serial numbers 060 0X and 061 0X..............43
4.1.1.2 Devices with serial numbers 060 1X and 061 1X..............44
4.1.2 Setting the rechargeable / disposable battery type .............. 45
4.2 Battery alarm ........................................................................... 45
4.3 Operation with nickel metal hydride rechargeable batteries
(NiMH) .....................................................................................46
4.4 Operation with alkaline non-rechargeable batteries ................ 48
5 Maintenance ..........................................................................49
5.1 Function control ....................................................................... 49
5.2 Testing indication accuracy with test gas ................................50
5.3 Adjustment ..............................................................................52
5.3.1 ppm range ............................................................................ 53
5.3.2 LEL range and % vol. range .................................................54
5.3.3 Conrming adjustment .........................................................55
5.4 Servicing .................................................................................55
5.5 Pump .......................................................................................56
5.5.1 Function control of pump ......................................................56
5.5.2 Changing the pump lter ...................................................... 57
5.5.3 Changing the sensor lter ....................................................57
6 Faults ......................................................................................58
7 Technical data........................................................................59
7.1 Features ..................................................................................59
7.2 Alarm thresholds .....................................................................60
7.2.1 Alarm thresholds for gas type methane CH4 ....................... 60
7.2.2 Setting ranges of alarm thresholds for different gas types ... 62
7.3 Response times ......................................................................63
7.4 Sensors ...................................................................................64
7.5 Ranges of use .........................................................................65
7.6 Pump capacity ......................................................................... 65
7.7 Power supply ........................................................................... 65
7.8 Dimensions and weight ...........................................................65
7.9 Technical information ..............................................................66
7.10 Advice on disposal ..................................................................68
II
Contents Page
8 Available models and accessories ......................................69
8.1 Available models .....................................................................69
8.2 Accessories ............................................................................. 70
Appendix
Gas types
Setting ranges for test gases
Test certicates
..............................................................................................75
..............................................................................................75
................................................................. 79
......................................................................................80
EU declaration of Conformity.................................................................81
Entering a user name
............................................................................84
List of abbreviations...............................................................................86
......................................................................................................87
Index
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 This product must only be operated after the relevant operating
instructions have been read and understood.
z This product may only be operated by qualied profession-
als who are familiar with the legal requirements (Germany:
DVGW).
z This product must only be used for its intended purpose.
z This product is only suitable for use in industrial and commer-
cial applications.
z Repairs must only be carried out by a specialist technician or
by other suitably trained personnel.
z Changes or modications to this product must not be carried
out without approval from Hermann Sewerin GmbH. The manufacturer cannot be held responsible for damages if unapproved
modications 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 approved battery types may be used, 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 EX-TEC
tection and measurement of gas concentrations. Equipped with
three sensors, it can be used for the ppm range, the % vol. range
and the LEL range.
The EX-TEC PM 4 is available as a diffusion device (without a
pump) or pump device (with an integrated pump).
Note:
These operating instructions describe the functions of rmware version 2.XXX. The manufac-
turer reserves the right to make technical changes.
The information provided here refers to a fully
equipped EX-TEC PM 4, including pump (pump
device). It also applies for diffusion devices.
1.3 Intended use
According to DVGW Note G 465-4 the device can be used for
the following purposes:
z Testing in houses/buildings ,
e.g. measuring minute gas concentrations in buildings and
locating the origin of the gas
z Testing in enclosed spaces ,
e.g. measuring the gas concentration in enclosed spaces or
shafts with an increased potential of gas dispersal
z Warning against explosive gas concentrations ,
e.g. for monitoring work areas whilst carrying out work to gas
pipes or gas systems
z Measurement of gas concentrations ,
e.g. when decommissioning gas systems
PM 4 is an electronic handheld device for the de-
WARNING!
The EX-TEC
PM 4 is not suitable for the location or
analysis of leaks in underground pressure lines.
2
1.4 General safety information
z The EX-TEC PM 4 has been tested to ensure that it is explosion-
proof in accordance with European standards (CENELEC).
z The functional safety of the EX-TEC PM 4 has been tested
in the LEL range, Warning (%LEL) application, for gas types
methane (CH4) and propane (C3H8).
z Use only original SEWERIN accessories with the EX-TEC PM 4.
For Flex handheld probe HG4 and Flex probe HG4, use
only SEWERIN-approved lters with activated carbon.
Otherwise, the functional safety of the EX-TEC PM 4 is not
guaranteed.
z Always open the battery compartment of the EX-TEC PM 4 and
recharge the batteries outside the potentially explosive area.
z Always use the test gases in well ventilated areas.
z Always operate the pump device model of the EX-TEC PM 4
with the pump switched on.
z Always carry out a function control (see Section 5.1) after the
EX-TEC PM 4 has suffered an impact (for example, if dropped
accidentally). Readjust the zero point if necessary (see Section 5.3).
z The EX-TEC PM 4 complies with the limits of the EMC Direc-
tive. Always observe the information in the manuals of (mobile)
radio equipment when using the device close to (mobile) radio
equipment.
z Use the EX-TEC PM 4 with the following gases only:
– Methane (CH4)
– Propane (C3H8)
– Butane (C4H10)
– Hexane (C6H14)
– Nonane (C9H20)
– Kerosene (JFUEL)
– Hydrogen (H2)
– Acetylene (C2H2)
1 General
3
1 General
WARNING!
Follow the advice regarding explosion protection
(see Section 2.3).
z When the Warning %LEL application is in use, a brief audi-
ble signal emitted every 5 seconds indicates that the device
is working properly. If no operating signal sounds, there is no
guarantee that the gas concentration is being monitored. You
must leave the danger zone immediately.
4
2 Features
The EX-TEC PM 4 is available in two models (see Section 8.1):
z Diffusion device: basic device without a pump
z Pump device: basic device with an integrated pump
(designation on back of device: P)
The
EX-TEC PM 4 is suitable for the following applications:
– House
– Enclosed spaces
– Warning %LEL
– Measuring vol%
2.1 Visual signals and audible signals
The device features two signalling mechanisms:
z Red alarm light on top of the device
z Buzzer on the front of the device
2 Features
Note:
These signalling mechanisms cannot be switched
off.
An audible signal is emitted each time a key is pressed:
z Very long signal On error message
z Long signal When switching device off,
When changing menus
z Short signal When switching device on,
When conrming a selection,
When navigating within a menu
5
2 Features
2.2 Measurement principles
The device features three sensors:
Semiconductor sensor
Measuring range
Application House
Catalytic combustion sensor
Measuring range 0 to 100 % LEL
Application
Thermal conductivity sensor
Measuring range 0 to 100 % vol.
Application
0 to 10,000 ppm
Enclosed spaces
Warning %LEL
Measuring vol%
House
Enclosed spaces
6
2.3 Explosion protection
The
EX-TEC PM 4 features the following explosion-protection
classications:
II2G Ex d e ib IIB T4 Gb
Basic device without leather bag for:
II2G Ex d e ib IIC T4 Gb
Basic device with leather bag for:
2 Features
– Methane CH
– Propane C3H
– Butane C4H
– Hexane C6H
– Nonane C9H
4
8
10
14
20
– Kerosene (JFUEL)
– Hydrogen
– Acetylene (C2H2)
– Methane CH
– Propane C3H
– Butane C4H
– Hexane C6H
– Nonane C9H
4
8
10
14
20
– Kerosene (JFUEL)
The respective test certicates are provided in the appendix.
7
2 Features
WARNING!
It is essential to observe the following points to en-
sure that the device is explosion-proof:
– Always open the battery compartment outside the
potentially explosive area.
– Always recharge the batteries outside the poten-
tially explosive area.
– Use only approved battery types.
– Use of the leather bag is mandatory to achieve
class IIC for gas types hydrogen (H2) und acetylene (C2H2).
8
3 Operation
3.1 General information on operation
3.1.1 Operator guidance
There are two ways to operate the
– Operator guidance by application
– Operator guidance by sensor
These operating instructions are based on operator guidance by
application in accordance with DVGW Note G 465-4:
– Testing in houses/buildings (House application)
– Testing in enclosed spaces (Enclosed spaces application)
– Warning against explosive gas concentrations
(Warning %LEL application)
– Measurement of gas concentrations
(Measuring VOL% application)
3 Operation
EX-TEC PM 4:
Note:
The factory default operator guidance setting for the
device is Application. This can be changed to Sen-
sor in the advanced settings (see Section 3.3.4.2).
9
3 Operation
3.1.2 Operating modes
The device is operated in two modes:
z Measuring mode (Section 3.2)
Measurements are taken in measuring mode. The zero point
can be set, the application can be changed and the gas type
can be selected via the user menu.
z Advanced settings (Section 3.3)
The advanced settings allow you to change specications for
the measurements as well as other device settings (e.g. adjustment, system, hardware, etc.). You cannot perform measurements in the advanced settings.
10
3.2 Measuring mode
The device is switched off.
Note:
Always switch the device on in fresh air.
z Press the key for approximately 3 seconds.
The device switches on. At this point, the two signalling mechanisms are always tested.
WARNING!
Do not use the device if you do not see the visual
signal and hear the audible signal briey when
switching on the device.
The LCD switches on. The pump runs with constant output
power.
The two start screens shown below are displayed:
3 Operation
Start screen
Display:
– Device type (EX TEC PM4)
– Firmware version (V2.000)
– Integrated sensors
(PPM LEL VOL)
Date/time
Display:
– Date (27/11/2008)
– Time (12:37)
– User data
11
3 Operation
Enclosed spaces
The device accesses the preset application. Two additional
screens are displayed automatically.
Display screens for the different applications:
Note:
The start-up application can be changed in the advanced settings (see Section 3.3.4.3). The factory
default setting for the device is the
application.
z House
House
acoustic/LED
1 PPM
CH4
Warning %LEL
Measuring range
Name of application with specication of associated signals and
measurement unit
Measurement data
Measurement data display
12
z Enclosed spaces
CH4
LED
1 PPM
Measuring range
Name of application with specication of associated signals and
measurement unit
Measurement data
Measurement data display
z Warning %LEL
z Measuring VOL%
3 Operation
Measuring range
Name of application with specication of measurement unit
Measurement data
Measurement data display
Measuring range
Name of application with specication of measurement unit
Measurement data
Measurement data display
You cannot input any information until the device has stopped
cycling through the displays. The device is not in measuring mode
until the Measurement data screen is displayed.
Note:
When the device is switched on, the sensors must
warm up. The duration of the warm-up time depends
on the sensor type.
After switching on the device, changing the measuring range or setting the zero point, you may notice
the reading ashing on the display. The device is
only ready for use when the displayed reading stops
ashing.
13
3 Operation
zero point
type of gas
3.2.1 User menu
Measuring mode comprises the following functional scope:
– Zero point correction
– Application selection
– Conrmation of function control
– Gas type (optional)
The functions in the user menu are described in Sections 3.2.2
to 3.2.8.
To select functions, you must rst access the user menu:
z Press the key or the key for approximately 2 seconds.
The user menu is displayed:
House
Enclosed spaces
Warning %LEL
Measuring vol%
inspection ok
14
To move between menu items:
z Navigate up and down in the menu by briey pressing the
or key.
z Conrm your selection by briey pressing the key.
If the selection is not conrmed, the display reverts back to measuring mode after approximately 10 seconds.
3.2.2 Setting the zero point
In general, the device sets the zero point automatically. However,
in certain cases, values other than zero may be displayed when
the device is switched on. This indicates a deviating zero point,
meaning that the device must be adjusted manually to environmental conditions.
Note:
The zero point must be set separately for each application. The zero point setting must be carried out
with fresh air.
To set the device to zero:
z Press the key or the key for approximately 2 seconds.
z Use the or key to select the Zero point menu item.
z Conrm your selection with the key.
The device returns to measuring mode.
The displayed value is zero (0).
3 Operation
Note:
If the displayed value is not zero (0), this means that
the zero point of the device could not be set because
the measured value was outside the specied limits
(see appendix).
15
3 Operation
3.2.3 House application
The House application is used to measure minute gas concentra-
tions in buildings and to locate the origin of the gas.
Measurement unit:
Measuring range:
Semiconductor 0 to 10,000 ppm
Thermal conductivity 1 to 100 % vol.
ppm (parts per million)
% vol.
Signals (methane CH
):
4
Audible Intermittent tone
increasing from
0 to 22,000 ppm (AL2)
Continuous tone
2.2 % vol. and greater (AL2)
Visual Flashing
increasing from 4,400 ppm
(AL1) to 22,000 ppm (AL2)
Continuously On
2.2 % vol. and greater (AL2)
16
3 Operation
Procedure:
z Press the key or the key for approximately 2 seconds
to access the user menu.
z Use the or key to select the House menu item.
z Conrm your selection with the key.
Following conrmation, the start screen for the House application
is displayed initially.
House
acoustic/LED
CH4
1 PPM
Measuring range
Then the device returns to measuring mode. The measured values are displayed.
Measurement data
In number format: e.g. 0 ppm
As a trend bar divided into
4 parts ranging from
0 ppm to 10,000 ppm: 0 ppm – 10 ppm
10 ppm – 100 ppm
100 ppm – 1,000 ppm
1,000 ppm – 10,000 ppm
A specic signal is emitted based on the reading, gas type and
preset value.
17
3 Operation
3.2.4 Enclosed spaces application
The Enclosed spaces application is used to measure gas con-
centrations in enclosed spaces where there is increased potential
of gas dispersal.
Measurement unit:
Measuring range:
Semiconductor 0 to 10,000 ppm
Thermal conductivity 0.1 to 100 % vol.
ppm (parts per million)
% vol.
Signals (methane CH
):
4
Audible No signal
Visual Flashing
increasing from 4,400 ppm
(AL1) to 22,000 ppm (AL2)
Continuously On
2.2 % vol. and greater (AL2)
18
3 Operation
Enclosed spaces
Procedure:
z Press the key or the key for approximately 2 seconds
to access the user menu.
z Use the or key to select the Enclosed spaces menu
item.
z Conrm your selection with the key.
Following conrmation, the start screen for the Enclosed spaces
application is displayed initially.
CH4
LED
1 PPM
Measuring range
Then the device returns to measuring mode. The measured values are displayed.
Measurement data
In number format: e.g. 0 ppm
As a trend bar divided into
6 parts ranging from
0 ppm to 100 % vol.: 0 ppm – 10 ppm
10 ppm – 100 ppm
100 ppm – 1,000 ppm (0.1 % vol.)
0.1 % vol. - 1 % vol.
1 % vol. - 10 % vol.
10 % vol. - 100 % vol.
19
3 Operation
3.2.5 Warning %LEL application
The Warning %LEL application is used to test working environ-
ments where explosion is possible, e.g. working on gas pipes or
gas systems.
Measurement unit:
Measuring range:
Catalytic combustion 1 % LEL to 100 % LEL
In the
Warning %LEL application, a brief audible signal emitted
every 5 seconds indicates that the device is working properly.
WARNING!
If no operating signal sounds, there is no guarantee
that the gas concentration is being monitored. You
must leave the danger zone immediately.
% LEL
20
Procedure:
z Press the key or the key for approximately 2 seconds
to access the user menu.
z Use the or key to select the Warning %LEL menu
item.
z Conrm your selection with the key.
Following conrmation, the start screen for the Warning %LEL
application is displayed initially.
Measuring range
3 Operation
Then the device returns to measuring mode. The measured values are displayed.
Measurement data
In number format: e.g. 0.00 % vol.
As a trend bar divided into 10 parts ranging from 0 % LEL to
100 % LEL in increments of 10 %.
For the Warning %LEL application, the EX-TEC PM 4 features
three alarm thresholds.
Alarm thresholds
z Alarm threshold 1 (AL1 – pre-alarm):
– When this alarm threshold is exceeded, an audible alarm and
a visual alarm are triggered and AL1 appears on the display.
– The audible alarm (2-Hz intermittent tone) is distinctly differ-
ent from the operating signal.
– The audible alarm can be acknowledged by pressing the
key. The visual alarm remains active.
– When the level drops below this alarm threshold concentra-
tion, the alarms switch off.
z Alarm threshold 2 (AL2 – main alarm):
– When this alarm threshold is exceeded, an audible alarm
and a visual alarm are triggered and AL2 appears on the
display.
– The audible alarm (5-Hz rapid intermittent tone) is distinctly
different from the operating signal.
– The AL2 alarm cannot be acknowledged.
– When the level drops below this alarm threshold concentra-
tion, the alarm can be acknowledged.
21
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