EsiWelma Sensigas URD20SS Скачать руководство пользователя страница 8 | Manualshive

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EsiWelma Sensigas URD20SS Скачать руководство пользователя страница 8

EsiWelma Srl

URD20SS_en.doc - rev. 0

CO

2

gas detectors – URD20SS

24/09/2010

Gas detection systems for industrial environments

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Key to marking
information

Marking in conformity with all applicable EC Directives

Marking for all equipment in conformity with Directive 94/9/EC (ATEX)

II

Equipment Group for surface industry

3

Equipment category 3 for use in Zone 2

G

Equipment intended for use in explosive gas atmosphere, caused by mixture of air
and gas, vapours, flammable mist

Ex nA nC d IIC T6

Types of protection complying with EN60079-0 and EN60079-15,

sensor body with type of protection d in compliance with EN60079-1

BVI 07 ATEX 0033

Type examination certificate

-20°C

≤

TA

≤

+50°C

Operating temperature range

Installation data

To be filled in by Installer

Installer's stamp and

signature

Installation site:

Product order number:

Part Number:

Manufacturing date:

Installation date:

Replacement date:

Routine checks

To be filled in by Installer / Service Personnel

Signature

Remarks

……………………………………………………………………………………………………………..

……………………………………………………………………………………………………………..

……………………………………………………………………………………………………………..

……………………………………………………………………………………………………………..

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Содержание Sensigas URD20SS

Страница 1: ...etects carbon dioxide leaks or emissions in industrial environments hospitals fermentation plants greenhouses stables and more in general where carbon dioxide is stored generated or produced URD20SS sensors can be used in stand alone mode with 4 20mA output or with an optional voltage free contact relay card having the following four digital outputs Pre alarm 1st alarm threshold 2nd alarm threshol...

Страница 2: ...larm by jumper selectable polarity 4 20mA output load resistor up to 200Ω at 12Vdc power supply 200Ω 700Ω at 24Vdc power supply Operating Temperature Storage Temperature 20 50 C 20 70 C Relative Humidity without condensing Operation Storage 15 90 RH 45 75 RH Operating pressure KPa 80 110 Air speed m s 6 Visual warnings Red LED visible with detector energised Dimensions and weight See dedicated sec...

Страница 3: ...s that of air so it tends to collect at floor level in closed unventilated environments Therefore the sensor must be installed about 30 cm above the floor level Take into consideration the following specific installation guidelines as well as the above instructions for location of the detectors The detectors must be installed 1 where accidental gas leakages are possible 2 at least 1 5m away from h...

Страница 4: ...be made by JP2 triple of jumpers to change this setting operator has to move JP2 jumpers as shown in the figure Caution if the default settings are changed the connections on the TB1 terminal board will be inverted Ref at default Ref at To set the operating mode of the 4 20mA signal it is necessary to use the 5th selector of the DIP switch at S1 in particular Proportional Threshold mode To set the...

Страница 5: ...s below Step 1 Insert the connection slot provided with the relay card into the control card making sure the flexible tab is towards the main terminal board Find CN3 connector CN3 connector Connection slot flexible tab Step 2 Fit the relay card snugly and pull the flexible tab of the connection slot towards the main terminal terminal board Flexible tab Step 3 Check the position of the card Make su...

Страница 6: ...al installation The sensors are factory calibrated so they normally do not require any other calibration once installed Still after installation an operational check of the sensors is recommended The detector will enter a 2 minute warm up phase after power up After this time the sensor will switch to normal operating mode but it will take about 2 hours before it reaches top performance level When ...

Страница 7: ...to the supplier installer who in turn will send it back to the manufacturer Sensors may need to be re calibrated using the TUL40 gas calibration kit and the TUS40 handheld terminal which must be connected to the sensor via the communication interface integrated in the cable on the connector CN4 For the re calibration procedure see the instructions supplied with the handheld terminal Remove power f...

Страница 8: ...use in explosive gas atmosphere caused by mixture of air and gas vapours flammable mist Ex nA nC d IIC T6 Types of protection complying with EN60079 0 and EN60079 15 sensor body with type of protection d in compliance with EN60079 1 BVI 07 ATEX 0033 Type examination certificate 20 C TA 50 C Operating temperature range Installation data To be filled in by Installer Installer s stamp and signature I...

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