TEL AFA 500 MK3 F UME H OOD M ONITOR — I NSTALLATION AND O PERATION G UIDE
Loosen coupling Insert hose into coupling. Tighten coupling
ONNECTION D ETAILS
F RONT P OST I NSTALLATION
REFER TO INSTALLATION INSTRUCTIONS BEFORE CONNECTING
AFA 500 USA
25mm male thread c/w nut for fixing into inner side wall of the fume hood.
AFA 500 mounted on front of side post
RS 485 Com Port
Adaptor 2 mounted through inner lining of side wall
Front of side post
O/P RELAY R1
MADE IN ENGLAND www.tel-uk.com TEL
S IDEWALL S ENSOR P LACEMENT The monitor must be positioned where it can "see" the room pressure of the laboratory. The back connection spigot of the monitor will accept the provided air hose, which should be connected to the inner chamber of the fume hood. The ideal position for the other end of the hose, for most fume hoods, is 100mm (4 inches) back from the sash and 100mm higher than the normal sash opening height through the inner side wall. Mount the monitor on the front of the fume hood and use the provided hose. For
15V DC POWER
Night setback relay input
Blk Blu Brn
fume hoods with a single skin side wall or a double skin with a small gap between them, it may not be possible to achieve the ideal sensing position using the provided hose. With a single skin side wall it is possible to fix the sensor on the outside of the fume hood and connect directly to the inner chamber in the ideal position. This method can only be used for up to two fume hoods when they are positioned side by side (using the two outer walls ). The sensor should not be mounted in a position were it is subject to drafts from the laboratory air input or ventilation system.
Flying lead with plug connection for PCB 15VDC
120V/15V DC Plug-‐in power adapter for 120V socket Power requirement – 110mA @ 120VAC.
Sash High Micro-‐switch ( Optional )
Sash High Proximity switch ( Optional )
For complete manual and product information, log on to http://www.tel-‐uk.com. For support, call Holland Safety Equipment at 847-‐680-‐9930.
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