ist eine geschützte Marke in verschiedenen Ländern.
Prior to starting any work, read the operating instructions!
Keep for later use!
Vor Beginn aller Arbeiten Betriebsanleitung lesen!
Zum späteren Gebrauch aufbewahren!
Lire le mode d‘emploi avant de commencer toute opération !
A conserver pour une utilisation ultérieure !
¡Leer el manual de instrucciones antes de comenzar cualquier trabajo!
¡Guardar el manual para una eventual consulta!
Prima di iniziare ad utilizzare lo strumento, leggere il manuale d‘uso!
Conservare per future consultazioni!
2
WIKA operating instructions air2guide model A2G-85
40339564.02 07/2012 GB/D/F/E/I
Contents
Contents
1.General information4
2.Safety5
3.Specications6
Design and function
4.
5.Transport, packaging and storage9
6.Commissioning, operation9
7.Options12
8.Maintenance and cleaning12
9.Disposal12
8
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WIKA operating instructions air2guide model A2G-85
3
1. General information
1. General information
■
The CO2 sensor described in the operating instructions has been
designed and manufactured using state-of-the-art technology. All
components are subject to stringent quality and environmental
GB
criteria during production. Our management systems are certied to
ISO 9001 and ISO 14001.
■
These operating instructions contain important information on
handling the instrument. Working safely requires that all safety
instructions and work instructions are observed.
■
Observe the relevant local accident prevention regulations and
general safety regulations for the instrument’s range of use.
■
The operating instructions are part of the product and must be kept
in the immediate vicinity of the instrument and readily accessible to
skilled personnel at any time.
■
Skilled personnel must have carefully read and understood the
operating instructions prior to beginning any work.
■
The manufacturer’s liability is void in the case of any damage caused
by using the product contrary to its intended use, non-compliance
with these operating instructions, assignment of insuciently
qualied skilled personnel or unauthorised modications to the
instrument.
■
The general terms and conditions contained in the sales
documentation shall apply.
■
Subject to technical modications.
■
Further information:
- Internet address:www.wika.de / www.wika.com
www.air2guide.com
- Relevant data sheet:SP 69.07
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WIKA operating instructions air2guide model A2G-85
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1. General information / 2. Safety
Explanation of symbols
WARNING!
... indicates a potentially dangerous situation which can
result in serious injury or death if not avoided.
Information
… points out useful tips, recommendations and information
for ecient and trouble-free operation.
2. Safety
WARNING!
Before installation, commissioning and operation, ensure
that the appropriate CO2 sensor has been selected in
terms of measuring range, design and specic measuring
conditions.
Non-observance can result in serious injury and/or damage
to the equipment.
Further important safety instructions can be found in the
individual chapters of these operating instructions.
2.1 Intended use
This CO2 sensor is used for the detection of carbon dioxide (CO2),
temperature and relative humidity (optionally) in living, oce and
production spaces, assembly rooms, rooms for large gatherings, etc.
GB
The instrument has been designed and built solely for the intended use
described here, and may only be used accordingly.
The manufacturer shall not be liable for claims of any type based on
operation contrary to the intended use.
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WIKA operating instructions air2guide model A2G-85
5
2. Safety / 3. Specications
2.2 Personnel qualication
WARNING!
Risk of injury if qualication is insucient!
GB
Improper handling can result in considerable injury and
damage to equipment.
■
The activities described in these operating instructions
may only be carried out by skilled personnel who have
the qualications described below.
Skilled personnel
Skilled personnel are understood to be personnel who, based on their
technical training, knowledge of measurement and control technology
and on their experience and knowledge of country-specic regulations,
current standards and directives, are capable of carrying out the work
described and independently recognising potential hazards.
Explanation of symbols
CE, Communauté Européenne
Instruments bearing this mark comply with the relevant
European directives.
Connection head: PC, 120 x 120 x 85 mm, with cover (crystal-clear)
Sensor tube: Steel, galvanised, length 300 mm, Ø 30 mm, incl.
mounting ange
Electrical connection
Cable gland M16, screw terminals max. 1.5 mm
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WIKA operating instructions air2guide model A2G-85
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3. Specications
Supply voltage
DC 15 ... 24 V (±10 %) or AC 24 V (±10 %) safety extra-low voltage
(SELV)
Power consumption: max. 3 W / max. 6 VA %
Weight: approx. 1.3 kg
Dimensions in mm
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WIKA operating instructions air2guide model A2G-85
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3. Specications / 4. Design and function
Ingress protection
IP 20 per EN 60529 / lEC 529
For further specications see WIKA data sheet SP 69.07 and the order
documentation.
GB
4. Design and function
Description
Wherever people are staying in rooms, the CO2 content is an evident
indicator for the indoor air quality. The higher the CO2 content, the worse
the air quality.
Design
CE conformity: 2004/108/EG Electromagnetic compatibility (EMC)
Product safety: 2001/95/EC Product safety
EMC: EN 60730-1:2002
Product safety: EN 60730-1:2002
Analogue outputs
0 ... 10 V, analogue output max. 10 mA
Temperature dependency
< 0.2 % of the full scale value per °C
Accuracy
typically ±40 ppm +4 % of the measured value
Permissible temperature
Ambient: 0 … +50 °C
Operation: 0 … +50 °C, max. 85 % rH, non-condensing
Scope of delivery
Cross-check the scope of delivery with the delivery note.
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WIKA operating instructions air2guide model A2G-85
during transportation. Obvious damage must be reported immediately.
5.2 Packaging
Do not remove packaging until just before mounting.
Keep the packaging as it will provide optimum protection during transport (e.g. change in installation site, sending for repair).
5.3 Storage
Permissible conditions at the place of storage:
Storage temperature: -30 ... +80 °C
Protect the CO
sensor from humidity and dust.
2
6. Commissioning, operation
Installation and mechanical connection
The instruments are supplied in an operational status. The instrument
is already equipped with a 1.5 m long connection cable and there is no
need to open it. If an opening of the cover becomes necessary, make
sure that the case is hermetically sealed again afterwards.
The mounting to the ventilation duct is
Mounting ange
made by means of the ange included
(mounting screws are not included in the
delivery).
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WIKA operating instructions air2guide model A2G-85
Air velocity max. 10 m/s
9
6. Commissioning, operation
Electrical connection
When using long connection cables, and depending on the cross-
section used, the measuring result might be falsied due to a voltage
drop on the common GND line, caused by the supply current and the
GB
line resistance. In this case 2 GND lines must be laid to the CO2 sensor
- one for the supply current and one for the measuring current.
Connection cable 1.5 m
brown Supply voltage +24 V
white Reference potential GND
yellow Output measured value CO
2
Classes for the indoor air quality (EN 13779)
CategoryCO2 content above the content
in the ambient air in ppm
Typical rangeStandard value
IDA1
IDA2
IDA3
IDA4
< 400 ppm350 ppm
400 ... 600 ppm500 ppmMean indoor air quality
600 ... 1,000 ppm800 ppmModerate indoor air quality
> 1,000 ppm1,200 ppmLow indoor air quality
Description
High indoor air quality
Measuring principle
For the CO2 measurement the "Non Dispersive InfraRed (NDIR)"
technology with automatic self-calibration (ABCLogic™) is used. For
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WIKA operating instructions air2guide model A2G-85
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6. Commissioning, operation
direct connection to a DDC or a monitoring system analogue 0 … 10 V
outputs are available.
ABCLogic™ - self-calibration feature
The outside levels of CO2 are generally very low at 400 to 500 ppm.
Inside buildings people are the major source of CO2. When a building
is unoccupied for 4 to 8 hours, CO2 levels will tend to drop to outside
background levels. This is especially the case when the building operational schedule includes a pre-occupancy purge of fresh air into the
building prior to the start of the day.
ABCLogic™, which stands for "Automatic Background Calibration",
uses the computing power in the sensor's on-board microprocessor
to remember the lowest CO2 concentration that takes place every
24 hours. The sensor assumes that this low point is the value of the
outside level. The sensor is also smart enough to discount periodically
elevated display values, which might occur if, for example, a room was
used 24 hours a day. When the sensor has collected 14 days worth
of low concentration values, it performs a statistical analysis to see if
there have been any small changes in the sensor display regarding
background levels that could be attributable to sensor drifts. If the analysis concludes that there is drift, a small correction factor is made to the
sensor calibration to adjust this deviation.
Commissioning of the sensors with ABCLogic™
GB
When CO2 sensors with ABCLogic™ are installed, they will use the rst
14 days of operation to calibrate themselves to the local background
levels. Each sensor will calibrate itself to its environment over the rst
14 days of operation.
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7. Options / 8. Maintenance and cleaning / 9. Disposal
7. Options
■
LC display for indicating the measured values and parameter
settings
■
3 LEDs for displaying the CO2-content
GB
0 ... 750 ppm: Green LED is on = good
751 ... 1,250 ppm: Yellow LED is on = moderate
1,251 ... 2,000 ppm: Red LED is on = poor
8. Maintenance and cleaning
The CO2 sensor is maintenance-free and oers long service life
provided it is handled and operated properly.
Clean the instruments with a moist cloth (soap water).
Repairs must only be carried out by the manufacturer or appropriately
qualied skilled personnel.
9. Disposal
Incorrect disposal can put the environment at risk.
Dispose of instrument components and packaging materials in an
environmentally compatible way and in accordance with the country-
specic waste disposal regulations.
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WIKA operating instructions air2guide model A2G-85
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Inhalt
Inhalt
1.Allgemeines14
2.Sicherheit15
3.Technische Daten16
Aufbau und Funktion
4.
5.Transport, Verpackung und Lagerung19
6.Inbetriebnahme, Betrieb19
7.Optionen22
8.Wartung und Reinigung22
9.Entsorgung22
18
D
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WIKA Betriebsanleitung air2guide Typ A2G-85
13
1. Allgemeines
1. Allgemeines
■
Der in der Betriebsanleitung beschriebene CO2-Sensor wird nach
dem aktuellen Stand der Technik konstruiert und gefertigt. Alle
Komponenten unterliegen während der Fertigung strengen Qualitäts- und Umweltkriterien. Unsere Managementsysteme sind nach
ISO 9001 und ISO 14001 zertiziert.
D
■
Diese Betriebsanleitung gibt wichtige Hinweise zum Umgang mit
dem Gerät. Voraussetzung für sicheres Arbeiten ist die Einhaltung
aller angegebenen Sicherheitshinweise und Handlungsanweisungen.
■
Die für den Einsatzbereich des Gerätes geltenden örtlichen Unfallverhütungsvorschriften und allgemeinen Sicherheitsbestimmungen
einhalten.
■
Die Betriebsanleitung ist Produktbestandteil und muss in unmittelbarer Nähe des Gerätes für das Fachpersonal jederzeit zugänglich
aufbewahrt werden.
■
Das Fachpersonal muss die Betriebsanleitung vor Beginn aller
Arbeiten sorgfältig durchgelesen und verstanden haben.
■
Die Haftung des Herstellers erlischt bei Schäden durch bestimmungswidrige Verwendung, Nichtbeachten dieser Betriebsanleitung,
Einsatz ungenügend qualizierten Fachpersonals sowie eigenmächtiger Veränderung am Gerät.
■
Es gelten die allgemeinen Geschäftsbedingungen in den Verkaufsunterlagen.
… weist auf eine möglicherweise gefährliche Situation hin,
die zum Tod oder zu schweren Verletzungen führen kann,
wenn sie nicht gemieden wird.
Information
… hebt nützliche Tipps und Empfehlungen sowie Infor-
mationen für einen ezienten und störungsfreien Betrieb
hervor.
2. Sicherheit
WARNUNG!
Vor Montage, Inbetriebnahme und Betrieb sicherstellen,
dass der richtige CO2-Sensor hinsichtlich Messbereich,
Ausführung und spezischen Messbedingungen ausgewählt wurde.
Bei Nichtbeachten können schwere Körperverletzungen
und/oder Sachschäden auftreten.
Weitere wichtige Sicherheitshinweise benden sich in den
einzelnen Kapiteln dieser Betriebsanleitung.
2.1 Bestimmungsgemäße Verwendung
Dieser CO2-Sensor dient zur Erfassung von Kohlendioxid (CO2),
Temperatur und der relativen Feuchte (optional) in Wohnräumen,
Büroräumen, Produktionsräumen, Versammlungsräumen, Räumlichkeiten für große Menschenansammlungen etc..
D
Das Gerät ist ausschließlich für den hier beschriebenen bestimmungsgemäßen Verwendungszweck konzipiert und konstruiert und darf nur
dementsprechend verwendet werden.
Ansprüche jeglicher Art aufgrund von nicht bestimmungsgemäßer
Verwendung sind ausgeschlossen.
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WIKA Betriebsanleitung air2guide Typ A2G-85
15
2. Sicherheit / 3. Technische Daten
2.2 Personalqualikation
WARNUNG!
Verletzungsgefahr bei unzureichender Qualikation!
Unsachgemäßer Umgang kann zu erheblichen Personenund Sachschäden führen.
■
D
Die in dieser Betriebsanleitung beschriebenen Tätigkeiten nur durch Fachpersonal nachfolgend beschrie-
bener Qualikation durchführen lassen.
Fachpersonal
Das Fachpersonal ist aufgrund seiner fachlichen Ausbildung, seiner
Kenntnisse der Mess- und Regelungstechnik und seiner Erfahrungen
sowie Kenntnis der landesspezischen Vorschriften, geltenden Normen
und Richtlinien in der Lage, die beschriebenen Arbeiten auszuführen
und mögliche Gefahren selbstständig zu erkennen.
Symbolerklärung
CE, Communauté Européenne
Geräte mit dieser Kennzeichnung stimmen überein mit den