Multi-Zone Gas Monitors
40
P/N: 3015-5074 Rev 11
This screen lists the zones in the left column and displays flow data. Use the UP/DOWN buttons to scroll
through the zones and the LEFT/RIGHT to scroll through the log data. As you move the bar horizontally,
the date and time of the condition is displayed in the upper right hand corner.
The Flow Log can be reset by pressing a combination of the ENTER and RIGHT arrow buttons while
viewing the log.
4.6. The Trend Screen
4.6.1. Navigating to the Trend Screen
From the
Zone Screen
, select the
Trend
option on the bottom left side. This will open the
Trend
screen.
The trend graph opens with the cursor located over the most recent data point. Use the LEFT/RIGHT cursor
keys to move the cursor to different data points. Holding a key down will cause the cursor to move rapidly
across the screen. As you move the cursor position, the date and time of that reading, along with the PPM
value, are displayed at the top of the screen above the graph. The trend graph is automatically scaled to
accommodate the largest PPM value displayed. The ZOOM OUT and ZOOM IN options allow you to adjust
the vertical scale of the graph.
The trend data is stored on a first-in, first-out basis. After 100 trend values have been stored the 101
st
value
will replace the first value stored. Therefore, in normal operation, when entering trend mode the cursor will
be located at the most recent data point. The data points to the left of the initial cursor location will be the
next most recent. The data point to the right will be the oldest data point in the buffer and will be over
written by the next data point.
Figure 4-10. Trend Screen
NOTE:
The Trend Data Log can be reset by pressing a combination of the ENTE R and
RIGHT arrow buttons while viewing the log.
When finished, press the ESC key to revert to the previous screen.
4.7. The Calibration Screen
4.7.1. Overview
The
Calibration Screen
is used to adjust the calibration factor for each gas. It is also used to program the
instrument (Halogen only) for new gases.
Summary of Contents for MultiZone
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