Atest Gaz Alpa MOD LED8, User Manual

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Maximum quantity of Alpa EcoTerm XT detectors by cable
type
1 Open loop configuration
Cross-section of
a single cable
conductor
[mm
2
]
Alpa EcoTerm XT Gas Detector
System without backup battery supply
(U
IN
= 24 V)
System with backup battery supply
(U
IN(min)
= 20 V)
L1 [m] L2 [m] Quantity of detectors L1 [m] L2 [m] Quantity of detectors
1 48 408 13 34 334 11
81 411 12 67 337 10
115 415 11 102 342 9
153 423 10 141 351 8
196 436 9 187 367 7
1,5 47 497 16 49 409 13
79 499 15 82 412 12
113 503 14 117 417 11
148 508 13 155 425 10
187 517 12 198 438 9
229 529 11 248 458 8
2,5 39 669 22 42 552 18
72 672 21 74 554 17
104 674 20 108 557 16
137 677 19 142 562 15
172 682 18 179 569 14
Table 1: Maximum quantity of Alpa EcoTerm XT detectors – open loop configuration
Atest-Gaz A. M. Pachole sp. j.
ul. Spokojna 3, 44-109 Gliwice, Poland
VAT No.: PL 9691433231
tel.: +48 32 238 87 94
fax: +48 32 234 92 71
e-mail: contact@atestgaz.pl
p. 1/3 Appendix: PU-Z-106-ENG R01
•
Figure 1: Open loop configuration
Control
unit
Detectors installed 30 m apart
Length L2 [m]
Length L1 [m]
Alpa
EcoTerm XT
Alpa
EcoTerm XT
Alpa
EcoTerm XT
L1 – distance T-connector of the first detector from the control unit
L2 – distance T-connector of the last detector from the control unit