Hach 3650 ATEX Monitor Measurements in Real-Time, Samples are lost off the left of the chart

Measurement (cont)

Monitor Measurements in Real-Time

You may wish to analyze a particular sampling point via the WinLog97 program's Monitoring menu. To use this Monitoring chart, the instrument must be connected to your PC.

Choose Monitoring from the WinLog97 menu to bring up a chart display.

The chart shows the gas concentration (in blue), temperature (in red), and pressure (in green) as the sample is being measured by the instrument. The chart is updated directly

from instrument measurements, at a rate determined by the time scale set in the TIMEBASE box at the lower right corner of the chart.

Click the TIMEBASE up/ down pointers to change the time scale of the divisions of the chart. Each division mark along the baseline (1, 2, ...10) can be

made to represent from 30 seconds to 2½ hours, providing from 5 minutes to 25 hours of continuously displayed samples (as illustrated in the table).

				Click on the Continuous box to enable or
	Timebase	Updating Rate	Max.	disable continuous charting. When this box is
			Samples	checked, the chart scrolls continuously after
30 Seconds/Division		5 Secs/Sample	60	reaching the 10 division, and the oldest
				samples are lost off the left of the chart.
1	Minute/Division	5 Secs/Sample	120
				When Continuous is not checked, the chart
10	Minutes/Division	5 Secs/Sample	1,200
				stops displaying new results after reaching
30	Minutes/Division	9 Secs/Sample	2,000	the 1 0 division, and all subsequent
1 Hour/Division		18 Secs/Sample	2,000	measurements are lost.
				Click the up/down pointers for each
2.5 Hours/Division		45 Secs/Sample	2,000
				measurement	variable	( G A S ,
				TEMPERATURE and PRESSURE) to

change the scaling of that value on the chart. The display of each measurement variable may be turned on or off by choosing the appropriate On or Off switch.

A running display of latest sample Gas, Temperature and Pressure is also shown in the bottom-right corner of the chart.

Use the buttons at the bottom of the chart to control real-time monitoring. Choose Go to clear the chart and start real-time monitoring, Stop to stop monitoring and Copy to copy the data from the chart as text information to the Windows Clipboard. This information can be pasted from the clipboard into any Windows application, such as a spreadsheet or word processor.

Choose Close to close the Monitoring window.

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