Atest Gaz Alpa MOD LED8, Руководство пользователя

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2 Closed 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 61 541 17 58 448 14
93 543 16 90 450 13
128 548 15 127 457 12
166 556 14 167 467 11
207 567 13 213 483 10
1,5 56 656 21 33 543 18
88 658 20 64 544 17
122 662 19 97 547 16
157 697 18 132 552 15
195 705 17 170 560 14
2,5 41 881 29 40 730 24
72 882 28 72 732 23
104 884 27 104 734 22
139 889 26 138 738 21
171 891 25 174 744 20
207 897 24 211 751 19
Table 4: Maximum quantity Alpa EcoTerm XT detectors – closed 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. 2/3 Appendix: PU-Z-106-ENG R01
•
Figure 2: Closed loop configuration for Alpa EcoTerm XT detectors
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 (also the length of loop return cable)