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6

System architectures

The gas monitoring systems can be made up of independent gas detector Teta EcoWent or Teta EcoN or
coupled and collaborating pairs of detectors (Teta EcoWent with Teta MiniDet). 

6.1

Data bus architecture

In this system gas detectors are connected to the bus via T-connectors S2.

Figure 3: Arrangement of gas detectors according to the data bus architecture

Detailed schematic diagrams in an editable format can be found on our
website 

tetagas.atestgaz.pl

.

7

Lifetime cycle

7.1

Transportation

The device can be shipped in the same way as new equipment of that type. If the original package or
another protecting means (e.g. corks) is unavailable the conveyed equipment must be secured against

shocks, vibrations or moisture by means of adequate methods and material at the own responsibility of the
sender. 
The device can be conveyed under environmental conditions as described in Table 5.

7.2

Installation

7.2.1

Deployment of gas detectors

Deployment  of gas  detectors   must  be  determined  by  the system  designed  with  consideration  to  the

following rules: 

installation of CO detectors is recommended at the height of upper respiratory airways, i.e. circa
1.2 to 1.7 above the floor level, 
NO

2

 detectors should be installed at about 30 cm above the floor, 

s. 11|20

User Manual: POD-046-ENG R01

Teta

MOD Control 1

Teta

EcoN

Teta

EcoWent

Teta

MiniDet

Teta

EcoWent

Summary of Contents for Teta EcoN

Page 1: ...POD 046 ENG R01 User Manual Gas Detector Teta EcoWent Teta EcoN Product code PW 105 CO PW 111 NO2...

Page 2: ...Monitoring Detection and Reduction of gas hazards For more details please visit our website www atestgaz pl Atest Gaz A M Pachole sp j ul Spokojna 3 44 109 Gliwice Poland tel 48 32 238 87 94 fax 48 3...

Page 3: ...ces in not allowed Engineering of a gas detection system for any specific facilities to be safeguarded may need consideration of other requirements during the entire lifetime of the product Use of una...

Page 4: ...18 8 Technical specification 19 9 List of fast wearing parts 19 10 List of accessories 20 11 Marking codes of products 20 12 Appendices 20 List of Tables Table 1 Electric connections 9 Table 2 Indica...

Page 5: ...sholds Indication of detector faults 1 2 Operation principle Gas detectors are crucial components of any system for gas detection They are designed for periodical measurements of gas concentration in...

Page 6: ...indications preferably under daily basis periodical inspection and calibration see Section 7 7 1 1 2 2 Alarm 1 threshold 1 Alarm 2 threshold 2 It is the device status when only slight concentrations o...

Page 7: ...edure takes about two minutes and the detector starts normal operation 2 Safety Do never install gas detectors at locations exposed to direct effect of water moisture or direct sunlight When defects a...

Page 8: ...entional painting or paint splashing Before use of silicon or silicon based materials paints adhesives sealant etc make sure that the device is properly secured against unintentional coating 3 Device...

Page 9: ...Ds are located on the side wall of the device housing see Figures 1 and 2 Figure 2 User interface Table 2 summarizes how status of the gas detector is indicated by means of individual LEDs Detailed de...

Page 10: ...g it is just enough to approach a permanent magnet to a specific location on the housing this location is shown in Figure 1 Depending on the operation mode of the detector the following details are di...

Page 11: ...hat type If the original package or another protecting means e g corks is unavailable the conveyed equipment must be secured against shocks vibrations or moisture by means of adequate methods and mate...

Page 12: ...Figure 1 Drilling of mounting holes in walls or other permanent structures is easier with use of a drilling pattern attached to the device package 7 3 1 Electric network The electric network must be d...

Page 13: ...all devices carry out the following operations assign addresses to all detectors see details in section 7 5 1 select the operation mode s see details in section 7 5 2 configure the control unit see Us...

Page 14: ...lected address is not confirmed and stored the old address remains intact and after 15 seconds the detector quits the mode of address assignment The default address is 99 7 5 2 Operation modes of gas...

Page 15: ...e operation mode see Section 7 5 2 Gas detector is coupled with the Teta MiniDet device Defect of Teta MiniDet Gas Detector Improper setting for the operation mode see Section 7 5 2 Improper connectio...

Page 16: ...f the manufacturer to come and calibrate the detectors on site 7 7 2 Replacement of fast wearing parts Please refer to Table 6 for the recommended lifetime and replacement schedule of fast wearing par...

Page 17: ...out any delay When the detector under test is coupled with the Teta MiniDet detectors the test gas LPG must be also supplied to the second device Correct execution of the test needs application of a c...

Page 18: ...magnet to gas detector or initiation of alarm simulations 7 7 4 Maintenance Gas detectors should be cleaned only by wiping its housing with a soft damp cloth Cleaning agents containing solvents white...

Page 19: ...sed into the installation pipe diameter of the pipe 16 mm Glands multiband diameter of wire 3 5 12 mm Acceptable cable cores 0 2 2 5 mm2 wire cores 0 2 2 5 mm2 stranded cores Enclosure material ABS We...

Page 20: ...ized reference gas nitrogen dioxide NO2 with concentration of 10 ppm Table 7 List of accessories 11 Marking codes of products Product code Device name PW 105 CO Gas Detector Teta EcoWent PW 111 NO2 Ga...

Page 21: ...ng to electromagnetic compatibility EN 50270 2006 This declaration of conformity is issued under the sole responsibility of the manufacturer Purpose and scope of use product is intended for use in gas...

Page 22: ...atmosphere 4 3 1 2 Impact of the presence of a working gas or other reaction gas 4 3 1 3 Effect of oxygen concentration value 5 3 2 Influence of temperature 5 3 3 Influence of moisture 5 3 4 Influenc...

Page 23: ...reference electrode is used 5 It has a constant potential that is not dependent on the concentration of the measured gas Owing to electrode reactions electrons are generated whose orderly flow electri...

Page 24: ...ith the provisions in the User s Manual 3 1 Composition of the controlled atmosphere It is assumed that the standard composition of the atmosphere is a mixture of gases with the proportions indicated...

Page 25: ...signal does not change e g nitrogen at a carbon monoxide sensor A set of substances exists or may exist for every detector the ones that are inert to the sensor do not react chemically with the sensor...

Page 26: ...ed atmosphere is within the rated range of the detector operation it does not affect the reading However sudden abrupt changes of humidity in the measured atmosphere can cause momentary appearance of...

Page 27: ...rocess e g weather conditions safety potential hazard generated by the mixture criterion B These both criteria have an impact on the final cost of the calibration services and level of competence requ...

Page 28: ...of flammable components 60 LEL concentration of toxic components NDSCh2 oxygen concentration 25 vol tank 3 dm3 water capacity and p 70 atm specified liquid chemical compounds e g glycerol 1 2 propaned...

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