2150EX AV Flow Module - Isco
2150EX AV Flow Module - Isco
2150EX AV Flow Module - Isco
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
<strong>2150EX</strong> Area Velocity <strong>Flow</strong> System<br />
Section 2 Preparation and Installation<br />
2.5 Permanent<br />
Installations<br />
For permanent installations, the <strong>2150EX</strong> can be powered from a<br />
safe area by an associated apparatus, the 2194EX module. The<br />
2194EX also serves as a network interface, with network and<br />
RS232 communication via the top connector. The 2194EX<br />
requires 12 or 24 volts DC, and may be powered by an <strong>Isco</strong><br />
910/920 series power pack, 934 NiCad battery, or 940 series lead<br />
acid battery using power adapter cable 69-2004-451. For details<br />
about these power supplies, see <strong>Isco</strong>’s Power Products Guide<br />
(60-9003-092).<br />
Pin B = +12 Volts<br />
Pin A = Neutral<br />
Figure 2-12 Amphenol connector pins for 12V adapter cable 69-2004-451<br />
Note<br />
<strong>Isco</strong> AC power supplies do not provide galvanic isolation in<br />
accordance with IEC 60079-14 for Zone 0 installations.<br />
Grounding<br />
terminals<br />
EX Bottom Plate 60-2004-344<br />
Important Information<br />
Regarding "X" Marking<br />
Make sure the <strong>2150EX</strong> is secured so that it will not accidentally<br />
fall or be swept away by flooding. Mount the <strong>2150EX</strong> onto the EX<br />
bottom plate (60-2004-344) for suspension over the flow stream.<br />
Use the notched holes in the plate to insert fasteners to secure<br />
the module to a wall, or attach a carrying handle and suspension<br />
handle (60-2004-377 and 60-2004-386), which can be secured to a<br />
ladder rung. The EX bottom plate has stainless steel ground terminals<br />
for attaching bonding conductors in permanent installations<br />
where circulating current presents a hazard.<br />
The ATEX labeling on the serial tag of the 2194EX module shows<br />
a number ending in "X". The X marking indicates that there are<br />
special conditions that must be met to ensure intrinsic safety, as<br />
explained on page viii in the front of this manual.<br />
In the case of the 2194EX, this associated apparatus does not<br />
provide the galvanic isolation required for zone 0 installations in<br />
accordance with IEC 60079-14 (refer to IEC 60079-14 sections<br />
dealing with earthing of intrinsically safe circuits and installations<br />
for zone 0) when powered by an <strong>Isco</strong> AC power source.<br />
2-20
Change language