Environnement Envea MIR 9000, Техническое руководство, Страница: 128 / 212

Environnement
S.A
MIR 9000
Duplication prohibited
5–10
JULY 2009
DISPLAY CAUSE POSSIBLE ACTIONS
– The Rx ratio on a gaseous correlation
measurement channel (more
important signal reference) is linked
to a leak of a gaseous cell filter (NO
2
,
HCl, NO, CO, CH
4
, N
2
O, NH
3
).
– Make a control of the metrological
parameters (cf. Maintenance sheet)
at frequent intervals (1 week).
– Consult us if the problem arises at
regular intervals.
C15V
– + 15V supply outside the limits – Compare the value of Channel 14 of
the multiplexer (“Tests /MUX Signals”
menu) with the value shown on the
control document.
– If 0V:
•
Check the J22 connection.
•
Check the 4A fuse of the cut-out
feed.
– Check the feeds +15V and +5V (cf.
Adjustment and inspection of the
motherboard). If necessary, adjust
the +5V.
Control –15V
– -15V supply outside the limits – Compare the value of Channel 12 of
the multiplexer (“Tests /MUX Signals”
menu) with the value shown on the
control document.
– If 0V:
•
Check the J22 connection.
•
Check the 4A fuse of the cut-out
feed.
– Check the feeds -15V and +5V
(cf. Adjustment and inspection of the
motherboard). If necessary, adjust
the +5V.
C5 V
– +5V supply outside the limits – Compare the value of Channel 15 of
the multiplexer (“Tests /MUX Signals”
menu) with the value shown on the
control document.
– If 0V:
•
Check the J22 connection.
•
Check the 4A fuse of the cut-out
feed.
– Check the feed +5V (cf. Adjustment
and control of the motherboard). If
necessary, adjust the +5V.