User Guide

10
REPLACEMENT OF INK PENS
Ink capsules can be easily replaced when the ink is exhausted.
To fit a new pen capsule:
1. Operate the pen lifter by hand by removing it from under the catch post attached to the case wall on the inner
left-hand side. This will raise all pens away from the chart paper.
2. Un-clip the moulded clamp on the pen capsule; remove the existing capsule by pulling carefully upwards and
outwards from pen arm.
3. Place a new capsule onto the pen arm ensuring the end of the pen arm is correctly position to the pen stops,
secure the capsule in place with the clamp provided.
4. Remove the pen nib cover.
5. Reposition the pens onto the chart paper by lowering the pen lifter and retain it under the catch post attached to
the case wall on the inner left-hand side.
PEN FRICTION AND ZERO ADJUSTMENT
Each recording pen is fitted with screws for friction and zero adjustment.
These adjustments are factory set to optimal setting, however various plant conditions and usage may result in the need to
make minor changes for correct operation.
The pen trace can be altered to optimum by turning the pen arm friction adjust screw provided bearing onto the pen arm as
shown in figure 4.
To bold-en the pen trace gently turn the screw downward, to lighten gently turn the screw upwards.
To position the pen to read accurately at zero when pressure is vented or any desired known pressure value on the chart,
turn the pen arm fine zero adjust screw in the direction required to move the pen the desired amount.
If for any reason, the required pen zero adjustment is more than a small increment, refer to detailed maintenance notes
especially if the calibration accuracy of the recorder is suspected of inaccuracy or is impaired.
Clearscan™ Recorder Series - Operating and Service Manual
PEN ARM
PEN ARM
CLAMP SCREW
RATIO POST
SPAN ADJUST
LINK SCREWS
HORIZONTAL LINK
PEN ARM FINE ZERO ADJUST
PEN ARM FRICTION ADJUST SCREW
ZERO ADJUST
BOURDON CENTRE SCREW FIXING TAKE-OFF
ASSEMBLY TO BOURDON TUBE
SHOULDER SCREW
PEN STOP
BOURDON TUBE
TAKE-OFF ASSEMBLY
Fig. 3 Measuring and recording system details