HAFFMANS RPU 352, RPU 353, RPC 80 RPC 50
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Page 30 of 112 RPU 352, RPU 353, RPC 80, RPC 50
9.2 GRAPH LINES
Channel 1 shows as a solid line on the graph while channel 2 shows as a dotted
line. The position of the PU cut-off temperature is shown as a dashed line. The
horizontal lines above each channel in the detailed record show the style of the
line for that channel.
ONLY FOR PRU-353
:
The pressure channel (channel 3) is not shown as a line on the graph but if the
pressure channel is active then the gauge pressure is shown in the detailed
record area alternating with the temperature records.
An inactive channel is not shown on the graph and is shown with an X in the
detailed record.
The vertical temperature scale adjusts automatically so that the maximum
reading of the highest channel is always on the graph. A record that is below the
scale leaves a gap in the graph.
If the whole graph is wider than will fit on a single screen then the cursor causes
the graph to scroll from side to side so that the required portion is visible. Small
dashed lines at the left or right of the time axis indicate that the graph extends
further in that direction.
9.3 OFF-SCALE RECORDS
Off-scale records are too high or too low to fit within the available recording range
of the instrument. The available recording range is shown in the “Specification”
section. Off-scale records can be caused by a faulty probe.
Any record that is too high or too low for the recording range does not show on
the graph and leaves a gap in the graph. In the detailed record area, records
above the top of the recording range show as a row of ‘+’ signs. Similarly a row
of ‘-’ signs indicates a record that is too low for the recording range.
Display backlight
You can use the top left switch at any time to turn on the display backlight.
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