Pressure Switch / Recorder
Changing the Chart Paper
First, locate the “change chart” button (#3) located in the upper left corner of the recorder. Press and hold this button for approximately one
(1) second until the pen begins to move to the left of the chart. Wait
until the pen has moved completely off of the chart. To remove the chart paper, unscrew
of the chart. Remove the old chart paper and position the new one so that the correct time coincides with the time line groove on the chart plate. Refer to Figure 3 for the location of the time line groove on the
left side of the chart plate.
Pen replacement
Slide the used pen cartridge off the pen arm. Slide on new cartridge and remove tip cover.
To replace the pen, loosen the two screws that hold the pen arm and the pen cartridge, and metal pen arm be removed as an assembly. Refer to Figure 3 for the location of the pen arm screws. Unsnap the plastic “U” clip tab of the pen cartridge from the metal pen arm (see Figure 2), remove and discard the old pen cartridge. Replace the new cartridge by opening the hinge and snapping it securely around the metal pen arm.
Figure 2 |