MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
Section 1
Page 1 - 7
HA250385
Issue 2 Mar 98
B
B
A
B
C
Chart
locked
Chart
unlocked
Fig 1.3a Open the recorder door
Fig 1.3b Change chart
Op:Display
Op:Chart
↵
for Fast Chart Off
↵
to Align Chart
↵
for Chart On
↵
to Park
1.3 CHANGING THE CHART
Open the recorder door (fig 1.3a) and operate the cancel (x) key
to call the
Op: Display
page, then use the page key to call the
Op: Chart
page
Operate the 'Enter' key twice to switch the chart drive off.
If there is currently no chart fitted, ignore the rest of this para-
graph. If there is a chart fitted, Lift the paper locking tab at the
center of the chart hub ('A' in figure 1.3b), and remove the old
chart by lifting it out from under the hold-down tabs ('B') and off
the hub.
Place the new chart under the hold-down tabs ('B' in figure 1.3b)
and onto the hub ('A')
WITHOUT
YET
LOWERING
THE
LOCKING
TAB
.
Rotate the chart until the current as time printed on the chart is
just clockwise (i.e above) the time reference mark ('C' in the
figure). Lower the locking tab onto the chart.
Use the page key to call the '
↵
to align
' page. Press repeatedly, or hold continuously the enter key to rotate the
chart counter-clockwise until the current time as printed on the chart is aligned with the time reference point.
Carry out the alignment procedure described in section 3.10 before returning the recorder to service.