Instruction Manual MIC type EC-912
Revision no.4
18 / 38
Smoke density measurements
Measuring set-up
Fig. 3.2.1
Measuring set-up principle
Connections:
a)
Air hose between air outlet on MIC and air inlet on FCU.
b)
Air hose between air outlet on FCU and air inlet on VP.
c)
Multicable between MIC and the MIC connector on the rear of the CC.
d)
Cable to recorder from outputs at the rear of the CC (if used).
e)
Mains cord for VP and CC.
Measuring procedure with AMCU
a)
Turn the flow meter needle valve in the FCU fully C.W.
b)
Switch on the mains to the VP and turn the needle valve on the FCU slowly C.C.W. until
the flow meter reads 30 l/min. Rate of flow is read at the middle point of the ball.
c)
Switch on the mains on the control cabinet and allow the instrument to stabilise for at
least 15 min.
d)
Press the MODE button on the AMCU to indicate mode X.
