Partlow MRC 7000, Installation & Operation Manual

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Service 4.1
This section contains information regarding calibration and test procedures that can be
performed in the field as well as items concerning the normal maintenance of the instrument.
Changing Charts 4.2
Chart changes may be done while in the normal operating mode.
CAUTION: The chart flange assembly pin is sharp to perforate the chart. Use caution
while installing the chart to avoid coming into contact with the pin.
1. Depress and hold the UP and DOWN keys for between 2 and 3 seconds. Immediately
after depressing the keys, the unit will do a Lamp Test with all LED segments and indicators
lighted on the upper (and lower) display.
2. After 2-3 seconds, the display will show Cchg, the pen(s) will move to and remain at a
point above the top graduation on the chart and the chart will stop rotating. All other functions
remain active (Operate, Display, etc).
3. Open the instrument door, snap up the chart hold down lever on the chart flange assembly,
gently lift the pen(s) and remove old chart.
4. With the pen(s) held up, install new chart. Be sure to line up the chart time line so that the
current time is aligned with the time setting mark on the chart platen.
5. Snap down chart hold down lever and close the instrument door.
6. Depress and hold the UP and DOWN keys for between 2 and 3 seconds. Immediately
after depressing the keys, the unit will do a Lamp Test with all LED segments and indicators
lighted on the upper (and lower) display.
7. After 2-3 seconds, the display will show Cchg momentarily, then the pen(s) position and
chart rotation will be restored.
Changing Pens 4.3
Open the instrument door. Refer to Figure 4-1 for pen changing procedure. This procedure is
also provided on a label on the instrument chart platen. Be sure to replace the pen cartridge
with the same type (color) that was removed. Be careful not to bend the pen arm while
changing the pen.
FIGURE 4-1
Changing Pens
For five replacement
pens order:
Green #60500401
Red #60500402
To install pen, slide pen into
holder (1) and push down (2)
as shown by arrows
To remove pen for
replacement, pull up at back
end (1) and push out.
1
2
1
2