Trotec BG20 User manual

BG20
OPERATING MANUAL
CARBON MONOXIDE
MEASURING DEVICE
EN
TRT-BA-BG20-TC-001-EN

1Operating Manual – Carbon Monoxide Measuring Device BG20 EN
Symbols
Danger!
Warns of a hazard which can lead to injuries.
Caution!
Warns of a hazard which can lead to damage to property.
Hazard due to toxic substances
Warns of a health hazard due to toxic substances.
The current version of the operating manual can be found at:
www.trotec.de
Legal notice
This release replaces all previous versions. No part of this
publication may be reproduced without written permission from
Trotec. The same applies for electronically processing,
duplicating or spreading the publication. Subject to technical
changes. All rights reserved. Trademarks are used without
guarantee that they may be used freely and primarily following
the spelling of the manufacturer. Product names are registered.
Changes to construction in the interests of constant
improvements to the product, as well as changes to the shape
and colour are reserved.
The scope of delivery may vary from product images. This
document was created with all due care. Trotec accepts no
liability whatsoever for possible mistakes or omissions.
The only party responsible for determining measured results to be
valid, drawing conclusions and deriving actions is the user! Trotec
accepts no claims of warranty for the correctness of the
determined measured values or measured results. Further,
Trotec accepts no liability whatsoever for possible mistakes or
damage which have been caused by utilising the determined
measured results. © Trotec
Table of contents
Notes regarding the operating manual .................................... 01
Information about the device................................................... 02
Technical data ........................................................................ 02
Safety ..................................................................................... 03
Transport and storage............................................................. 04
Operation................................................................................ 04
Maintenance and repair .......................................................... 06
Disposal.................................................................................. 06
Declaration of conformity ........................................................ 06
Notes regarding the operating manual

EN Operating Manual – Carbon Monoxide Measuring Device BG20 2
Description of the device
The carbon monoxide measuring device serves the purpose of
measuring the concentration (ppm) of carbon monoxide (CO) in
the air by means of an integrated sensor.
The device is designed for indoor use.
The device is equipped with an automatic switch-off and memory
function.
In order to protect it from impact, scratching etc., the device
comes equipped with a protective cover.
Device depiction
Display
Scope of delivery
1 x Carbon monoxide measuring device BG20
1x9Vbattery
1xDevicebag
1 x Getting started guide
Information about the device
No. Designation
1Sensor
2 Protective cover
3SELbutton
4 Indicator LED
5 Power button
6 MODE button
7 Display
1
6
7
2
5
3
4
No. Designation
8 MUTE indication
9MAXindication
10 Time indication
11 REC indication
12 Memory space indication
13 MEM indication
14 Battery indication
15 Indication of the unit ppm
16 Measurement value indication
17 CO indication
Technical data
Model: BG20
Weight: 180 g
Dimensions (H x W x D): 160 x 56 x 40 mm
Measuring range: 0 ppm to 1000 ppm
Accuracy: ±10 ppm or ±5 %
(depending on which value is larger)
Measuring range resolution: 1 ppm
Sensor type: stabilised electrochemical gas-specific (CO)
Sensor life
(typically): 5 years
Warm-up period: < 20 seconds
Power supply: 9 V battery (NEDA 1604 or IEC 6F22)
Battery life: approx. 50 hours for an alkaline cell
Operating temperature: 0 °C to 50 °C (32 °F to 122 °F)
Storage temperature: -30 °C to 60 °C (-22 °F to 140 °F)
Operating humidity: 0 % RH to 99 % RH (non-condensing)
Warning!
CO2CO MAX
ppm
Time REC
MEMO2
8
17 12
16
91011
13
14
15

3Operating Manual – Carbon Monoxide Measuring Device BG20 EN
Carefully read the operating manual before using the device
and keep it within reach!
• Do not use the device in atmospheres containing oil, sulphur,
chlorine or salt.
• Protect the device from permanent direct sunlight.
• Do not remove any safety signs, stickers or labels from the
device. Keep all safety signs, stickers and labels in legible
condition.
• Do not open the device with a tool except for battery change.
• Observe the storage and operating conditions (see chapter
Technical data).
Intended use
Only use the carbon monoxide measuring device BG20 for indoor
measurements of the carbon monoxide concentration in the air
within the measuring range specified in the technical data.
To use the device for its intended use, only use spare parts which
have been approved by Trotec.
Improper use
Do not use the device in potentially explosive atmospheres, or for
measurements in liquids. Trotec accepts no liability for damages
resulting from improper use. In such a case, entitlements to a
warranty are forfeited. Any unauthorised modifications,
alterations or structural changes to the device are forbidden.
Personnel qualifications
People who use this device must:
• be aware of the dangers that occur when working with
carbon monoxide measuring devices.
• have read and understood the operating manual, especially
the safety chapter.
Residual risks
Danger!
Even low concentrations of carbon monoxide (CO) are
life-threatening! Carbon monoxide is toxic by inhalation!
Make yourself familiar with the signs of CO poisoning and
learn to recognize them. Immediately remove persons
who have inhaled carbon monoxide to fresh air.
Immediately seek medical help!
Danger!
Keep a sufficient distance away from sources of heat.
Danger!
Do not leave the packaging lying around. Children may
use it as a dangerous toy.
Danger!
The device is not a toy and does not belong in the hands
of children.
Danger!
Dangers can occur at the device when it is used by
untrained people in an unprofessional or improper way.
Observe the personnel qualifications.
Caution!
To prevent damages to the device, do not expose it to
extreme temperatures, extreme humidity or moisture.
Caution!
Do not use abrasive cleaners or solvents to clean the
device.
Examples for carbon monoxide concentration in the air
Examples for carbon monoxide concentrations and their effects:
* according to OSHA = Occupational Safety & Health Association
Safety
0 to 1 ppm Normal background levels
9 ppm Max. permissible concentration for interior spaces
35 ppm Max. average amount to which one may be exposed over a
period of 8 hours. *
100 ppm Exposure limit, persons ought to leave enclosed spaces. *
150 ppm Slight headache after 1.5 hours
200 ppm Mild headache, fatigue, nausea and dizziness
400 ppm Frontal headache, life-threatening after 3 hours
800 ppm Dizziness, nausea, convulsions, death within 2 to 3 hours
1600 ppm Nausea within 20 minutes, death within 1 hour
3200 ppm Headache, dizziness and nausea within 5 to 10 minutes. Death
within 25 to 30 minutes.
12800 ppm Death within 1 to 3 minutes

EN Operating Manual – Carbon Monoxide Measuring Device BG20 4
Transport
Use the supplied device bag to transport the device.
Storage
When the device is not being used, observe the following storage
conditions:
•dry,
• protected from dust and direct sunlight,
• with a plastic cover to protect it from invasive dust, if
necessary.
• The storage temperature is the same as the range given in
the chapter Technical data.
• When storing the device for a long time, remove the batteries.
Preferably use the supplied device bag to store the device.
Inserting the battery
• Insert the supplied battery before first use.
Caution!
Make certain that the surface of the device is dry and the
device is switched off.
1. Remove the device from the protective rubber cover (2).
– The protective rubber cover is fitted tightly. Push the
protective cover above the display off the housing and
remove it towards the rear.
2. Loosen the screw at the battery cover (18).
3. Use the battery clip (19) to connect the battery with correct
polarity.
4. Screw the battery cover (18) back in.
5. Pull the protective rubber cover back over the device.
Switch-on
Note:
The device calibrates after each switch-on taking the CO
concentration in the environment as basis. For reasons of safety
however, regardless of the actual CO concentration in the
environment upon switch-on, the device accepts no more than 10
ppm as upper limit!
Example:
Should the background concentration of CO amount to 30 ppm,
the device will not use 30 ppm as reference value, and hence zero
point, but instead maximally 10 ppm! The set alarm threshold of
30 ppm (see also Carrying out a measurement) would therefore
be activated at an actual CO value of 40 ppm (display: 30 ppm!).
Always make sure to switch the device on in CO-free
surroundings, e.g. in fresh air, for otherwise the displayed CO
contents of the subsequent measurements will be incorrect!
1. Go to a place with a low CO concentration (e.g. fresh air).
2. Press the Power button (5).
– The indicator LED (4) will briefly flash red and then be
illuminated in green. The warm-up phase of the device incl.
self-test is started.
3. Wait until the self-test is completed.
– The device displays (7) a countdown from 10 to 0.
– An acoustic signal indicates, that the self-test is
completed.
– The device is ready for operation.
Transport and storage
Operation
2
18
19

5Operating Manual – Carbon Monoxide Measuring Device BG20 EN
Carrying out a measurement
Note:
Note that moving from a cold area to a warm area can lead to
condensation forming on the device's circuit board. This physical
and unavoidable effect can falsify the measurement. In this case,
the display shows either no measured values or they are
incorrect. Wait a few minutes until the device has become
adjusted to the changed conditions before carrying out a
measurement.
1. Direct the device towards the supposed CO source.
– The measured value will be displayed in real time.
– If the measured value amounts to more than 30 ppm, a
repetitive acoustic warning signal will be emitted. The
higher the CO content, the higher the repetition frequency.
The LED (4) is illuminated in red.
– If the measured value amounts to more than 200 ppm, a
constant acoustic warning signal will be emitted. The
LED (4) is illuminated in red.
Maximum value display
The device can display the maximum value determined since the
beginning of the measurement. To do so, proceed as follows:
1. Press the MODE button (6) once.
– The indications MAX (9) and REC (11) appear on the
display.
– The highest value measured appears in the measurement
value display.
Measured value storage
Up to 10 measured values can be stored. In order to save one or
several measured values, please proceed as follows:
1. Press the MODE button (6) three times.
– The indications REC (11) and memory space (12) appear on
the display.
– The value 0 or else the storage location displayed when last
calling up the measured value memory will appear in the
memory space (12) display.
2. Press the SEL button (3) to save the current measured value.
Calling up the measured value memory
The device comes equipped with a measured value memory, in
which up to 10 measured values can be stored. Saved measured
values are preserved even after switch-off.
To call up saved measured values, please proceed as follows:
1. Press the MODE button (6) twice.
– The indications MEM (13) and memory space (12) appear
on the display.
2. Repeatedly press the SEL button (3) until the storage location
with the desired number is displayed.
Calling up the alarm threshold
The value for the alarm threshold is stipulated, can however be
called up at any time:
1. Press the MODE button (6) four times.
– The value 30 ppm is displayed in the measurement value
display (16).
Resetting the zero point
By means of resetting the zero point the prevailing CO
concentration and hence the current measured value is defined
as new reference value (see also Switch-on). Therefore, resetting
the zero point should only be effected in the fresh air, thus in
surroundings with the lowest possible CO concentration!
To do so, proceed as follows:
1. Go to a place with a low CO concentration (e.g. fresh air).
2. Press the MODE button (6) four times.
– The alarm threshold (30 ppm) is displayed in the
measurement value display (16).
3. Press and hold the SEL button (3) for approx. 8 seconds until
0appears in the measurement value display.
– The digit 0flashes six times.
– Then the device returns to the measuring mode.
Disabling the acoustic warning signal
1. Press the MODE button (6) six times until either on or off is
displayed.
2. Press the SEL button (3) to select the desired setting.
– When on, the acoustic warning signal is enabled.
– When off, the acoustic warning signal is disabled. The
MUTE indication (8) appears on the display.
Switching the display illumination on or off
Ex works the display illumination is switched off.
Press the SEL button (3) for approx. 2 seconds, whilst the device
is in normal measuring mode.
– The display's background illumination is switched on or off.
Switch-off
The device comes equipped with an automatic switch-off
function and switches off automatically after 15 minutes of
inactivity.
1. Press the Power button (5) to switch the device off.

EN Operating Manual – Carbon Monoxide Measuring Device BG20 6
Battery change
The battery is to be changed when the battery indication (11)
lights up in the display or the device can no longer be switched
on. See Inserting the battery on page 4.
Sensor
The sensor life amounts to approx. 5 years.
During this time, we recommend checking/calibrating the sensor
annually.
Cleaning
Clean the device with a soft, damp and lint-free cloth. Ensure that
no moisture enters the housing. Do not use any sprays, solvents,
alcohol-based cleaning agents or abrasive cleaners, but only
clean water to moisten the cloth.
Repair
Do not modify the device or install any spare parts. For repairs or
device testing, contact the manufacturer.
In the European Union, electronic equipment must not
be treated as domestic waste, but must be disposed of
professionally in accordance with Directive
2002/96/EC of the European Parliament and Council of 27th
January 2003 concerning old electrical and electronic equipment.
At the end of its life, please dispose of this instrument in a manner
appropriate to the relevant legal requirements.
in accordance with the EC Low Voltage Directive 2006/95/EC and
the EC Directive 2004/108/EC about electromagnetic
compatibility.
We hereby declare that the carbon monoxide measuring device
BG20 was designed, developed and produced in compliance with
the named EC Directives.
The marking is found on the front of the device.
Manufacturer:
Trotec GmbH & Co. KG
Grebbener Straße 7
D-52525 Heinsberg
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Heinsberg, 01 December 2014
Managing Director: Detlef von der Lieck
Maintenance and repair Disposal
Declaration of conformity

Trotec GmbH & Co. KG
Grebbener Str. 7
D-52525 Heinsberg
[phone]
[phone]
[e-mail]
www.trotec.com