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6.3

Closed alarm loop

This system is different from the previous one in terms of connection of the end of the supply and signal
line back to the control unit of the loop equipped with a test output (e.g. Alpa MOD LED1 Control Unit). In

this way, it is possible to improve the power supply conditions of the sensor and resistance to damage. In
this system it is also possible to check the loop continuity and the regularity of the system operation by

enforcing the alarm at the "test output of the loop" in the control unit. This makes it easier to carry out
periodic checks of the system.

Figure 6: Connection with the Alpa MOD LED1 control unit into a closed bus system

A detailed diagram is shown in Appendix [3].

6.4

Other architectures

It is also possible to use modification of the described architectures. For example, by connecting several bus
systems   to   single   inputs   of   the   control   unit,   it   is   possible   to   create   a   system   composed   of   several

independent zones using only one control unit. However, it is necessary to remember that it may be
possible to supply the bus systems from additional power sources that will provide adequate current

capacity of the system.

p. 12|24

User Manual: POD-042-ENG R04

Summary of Contents for Alpa EcoWent XT

Page 1: ...POD 042 ENG R04 User Manual Gas Detector Alpa EcoWent XT Product code PW 097 CO...

Page 2: ...sign manufacture implement and support Systems for Monitoring Detection and Reduction of gas hazards We invite you to familiarize yourself with our offer on www atestgaz pl We design manufacture imple...

Page 3: ...nmental exposure may result in damage to the device Use of damaged or incomplete devices is not allowed The design of the Gas Safety System for a protected facility may involve other requirements thro...

Page 4: ...escription 9 Table 3 Indication of operating conditions 10 Table 4 Device configuration 13 Table 5 Reasons for failure signalling 15 Table 6 Technical specification 24 Table 7 List of consumable items...

Page 5: ...ltage installation ease of installation possibility to connect the components in a bus system or a star system possibility to connect the Alpa EcoDet XT detector we obtain a cooperating pair of CO and...

Page 6: ...vidual operating conditions The type of gas the thresholds and the corresponding current value for a specific detector should be checked in the calibration certificate In the course of its work the de...

Page 7: ...when the gas concentration exceeds the alarm threshold 3rd threshold Actions to be taken remove bystanders from the danger zone as far as possible allow the airing of the endangered rooms by opening...

Page 8: ...ty System off there is a possibility that a dangerous voltage can exist on the terminals of the Control Unit It can originate from another system like for an example ventilation system that uses one o...

Page 9: ...rt of the detector bus T connector XT control unit Parameters see Section 10 Positive supply pole S1 Signal line S1 S2 Signal line S2 Negative power pole X2 Alpa EcoDet XT detector port Positive suppl...

Page 10: ...Detector damage Red ALARM blinking Exceeded warning threshold 1 Red ALARM blinking Exceeded warning threshold 2 Red ALARM lights Exceeded alarm threshold Yellow X1 lights BUS Bus failure interruption...

Page 11: ...ent the detector are connected in series to the bus line via the XT T connector An advantage of this solution is significant facilitation of the system installation and reducing the wiring costs Figur...

Page 12: ...he loop in the control unit This makes it easier to carry out periodic checks of the system Figure 6 Connection with the Alpa MOD LED1 control unit into a closed bus system A detailed diagram is shown...

Page 13: ...te detector switch setting for detectors working in the system of a closed alarm loop and detectors working in the open alarm loop system except for the last detector Architecture Detector location Se...

Page 14: ...In the case of working alone it is necessary to pay attention to the need to mount the jumper in the terminal block X2 p 14 24 User Manual POD 042 ENG R04 Intermediate detector Last detector Next det...

Page 15: ...nnector or inappropriate connection in the places indicated in the figure Incorrect setting of the configuration switch see Section 7 1 The detector works as the last one Incorrect setting of the conf...

Page 16: ...cement or disconnection 9 2 2 Installation Electrical installation of the detectors may only be performed by persons having appropriate qualifications or acting in agreement or under the supervision o...

Page 17: ...re shown in the Figure 2 To make the holes it is recommended to use drilling template enclosed in the packaging of the unit If the connection was made with the use of multi wire cables commonly known...

Page 18: ...he star system Only the S1 terminal is used The configuration switch is always set in position 2 last detector For details see Section 7 Distribute connection cables in the facility leaving appropriat...

Page 19: ...all the channels of the control unit Measure the power supply voltage on the sensor furthest from the control unit while pressing TEST It should not be less than 10 V For details see Appendix 3 9 2 2...

Page 20: ...rming the power supply and signal installation of the detectors it is necessary to check and start the installation Checking is based on further addition of detectors or their simulator see below to t...

Page 21: ...s conducting all the inspection operations with a positive result 9 4 Periodical operations During the operation of the gasometric system it is necessary to be aware of the fact that the detectors and...

Page 22: ...ace the sensor only The whole component is subject to replacement the sensor mounted on the plate sensor plate see Table 7 In order to replace the sensor plate it is necessary to turn off the power su...

Page 23: ...42 V 40 mA3 Environment In operation Storage Ambient temperatures Humidity Pressure 20 50O C 10 90 long term 0 99 short term 1013 10 hPa 0 50O C 30 90 long term Detected substance Carbon monoxide CO...

Page 24: ...49 CB3 CB3 Service Cable PW 064 WM1 Mounting Adapter WM1 for wall mounting PW 092 A Calibration kit Standardized reference gas carbon monoxide CO 150 ppm Table 8 List of accessories 13 Product marking...

Page 25: ...5 in relation to directive 2011 65 EU on the restriction of the use of certain hazardous substances in electrical and electronic equipment EN IEC 63000 2018 This declaration of conformity is issued un...

Page 26: ...ion or oxygen reduction respectively In order to improve the performance of the sensor a third electrode the reference electrode is used 5 It has a constant potential that is not dependent on the conc...

Page 27: ...in the detector calibration certificate The detector must be used in accordance with the provisions in the User s Manual 3 1 Composition of the controlled atmosphere It is assumed that the standard c...

Page 28: ...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 29: ...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 30: ...correct positions The jumper in the terminal block X2 of the Alpa EcoWent XT must be installed when the detector is not directly coupled with the Alpa EcoDet XT detector Recheck position of the config...

Page 31: ...ion to the position of an internal configuration switch the last detector in the loop or a transient detector Atest Gaz A M Pachole sp j ul Spokojna 3 44 109 Gliwice Poland VAT No PL 9691433231 tel 48...

Page 32: ...ent XT must be installed when the detector is not directly coupled with the Alpa EcoDet XT detector Recheck position of the configuration switch a transient of a line end detector Atest Gaz A M Pachol...

Page 33: ...Went XT must be installed when the detector is not directly coupled with the Alpa EcoDet XT detector Recheck position of the configuration switch a transient of a line end detector Atest Gaz A M Pacho...

Page 34: ...he terminal block X2 of the Alpa EcoWent XT must be installed when the detector is not directly coupled with the Alpa EcoDet XT detector Recheck position of the configuration switch a transient of a l...

Page 35: ...163 553 14 206 656 16 206 566 13 1 63 723 23 75 615 19 96 726 22 109 619 18 131 731 21 146 626 17 168 738 20 186 636 16 207 747 19 229 649 15 1 5 62 872 28 81 741 23 94 874 27 115 745 22 128 878 26 1...

Page 36: ...5 12 107 463 13 89 389 11 144 474 12 126 396 10 184 484 11 169 409 9 229 499 10 218 428 8 1 5 45 555 18 42 462 15 77 557 17 74 464 14 111 561 16 109 469 13 146 566 15 146 476 12 184 574 14 187 487 11...

Page 37: ...9 6 243 337 4 1 58 369 11 56 305 9 93 373 10 93 311 8 133 382 9 135 322 7 177 395 8 185 341 6 229 416 7 249 374 5 1 5 78 451 13 62 373 11 114 456 12 98 378 10 153 464 11 138 387 9 197 477 10 183 432 8...

Page 38: ...1 63 933 30 67 787 25 96 936 29 101 791 24 130 940 28 136 796 23 164 944 27 172 802 22 202 952 26 212 812 21 1 5 50 1130 36 55 955 31 82 1132 35 87 957 30 115 1135 34 120 960 29 149 1139 33 155 965 2...

Page 39: ...64 574 18 55 475 15 97 577 17 89 479 14 132 582 16 124 484 13 169 589 15 163 493 12 209 599 14 207 507 11 1 5 67 697 22 68 578 18 99 699 21 101 581 17 133 703 20 137 587 16 169 709 19 174 594 15 207 7...

Page 40: ...59 494 15 71 413 12 94 498 14 108 419 11 131 504 13 149 429 10 172 514 12 197 446 9 217 528 11 252 490 8 1 5 40 599 19 66 501 15 75 603 18 101 505 14 108 605 17 139 512 13 144 610 16 181 523 12 184 6...

Page 41: ...at the end of the line One Alpa EcoDet XT Gas Detector at the end of the line L2 m L2 m 0 75 1400 1400 1 1400 1400 1 5 1400 1400 2 5 1400 1400 Table 7 Maximum length of cables star configuration Ates...

Page 42: ...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 43: ...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...

Page 44: ...www atestgaz pl Notes...

Page 45: ...www atestgaz pl Notes...

Page 46: ...www atestgaz pl Notes...

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Page 48: ...M Pachole sp j Spokojna 3 44 109 Gliwice tel 48 32 238 87 94 fax 48 32 234 92 71 e mail contact atestgaz pl For more details on our devices and other products and services offered by us visit www ate...

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