76J Pneumatic Fulscope Recorder
MAINTENANCE
18
Figure 9. Fiber-Tip Pen
If the pen fails to touch the chart paper bend the pen arm slightly as described in paragraph
4.3.1.
When the recorder is not in use, place the pen cap on the tip of the pen to protect and seal the
tip from evaporation. The shelf life of the pen is a minimum of 12 months.
4.4 PEN
CALIBRATION
The following calibration procedure is used to set the Zero, Span, and Linearity adjustments of
the recorder. It is based on applying 0, 100, and 50% of span to the measuring element of the
pen(s) being calibrated. If the recorder has multiple pens, each is calibrated independently in
the same manner as a single pen.
The input range appears on the data plate located on the door of the recorder and may be
verified by the tagging attached to each measuring element. Some input ranges are not zero
based such as 3 to 15 psig and 30 to 130°F. When calibrating the recorder, care should be
taken to always express input values in % of span. When determining the actual input value
for calibrating a recorder with a non zero based input range, always add the lower range value
to the span value.
Summary of Contents for Fulscope 76J Series Model C
Page 1: ...Fulscope 76J Series Model C Instructions Pneumatic Recorder ABB Instrumentation ...
Page 18: ...76J Pneumatic Fulscope Recorder OPERATION 14 Figure 7 Chart Plate and Chart Drive Components ...
Page 20: ...76J Pneumatic Fulscope Recorder OPERATION 16 ...
Page 34: ...76J Pneumatic Fulscope Recorder MAINTENANCE 30 ...
Page 39: ...76J Pneumatic Fulscope Recorder PARTS LIST 35 Figure 23 Two Pen Movement 93S115 ...
Page 40: ...76J Pneumatic Fulscope Recorder PARTS LIST 36 Figure 24 Three Pen Movement 93S99 ...
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