Honeywell VRX180 Paper Chart Speed Equivalents to Time Base Selections, Set Up Trend 2 3

Programming Function Blocks and Features

Table 4-56 Paper Chart Speed Equivalents to Time Base Selections

Instrument		Paper Chart Vertical Trend			Paper Chart Horizontal Trend
Time/Screen		cm/hour (inches/hour)			cm/hour (inches/hour)
5 minutes	154 (60.6)			246		(96.8)
15 minutes	51.3		(20.2)	82 (32.2)
30 minutes	25.6		(10.1)	41 (16.2)
1 hour	12.8 (5.1)			20.5		(8.1)
2 hours	6.9		(2.7)	10.25 (4.0)
4 hours	3.4		(1.34)	5.1		(2.0)
8 hours	1.6 (0.63)			2.56 (1.0)
24 hours	0.53 (0.21)			0.85		(0.33)
7 days	0.076 (0.03)			0.122		(0.048)
31 days	0.017 (0.007)			0.027		(0.011)

Set Up Trend 2 - 3 - 4

See Table 4-55 for prompts. For Point #1 - Point #12, enter a second group of up to 12 points that will be displayed as a horizontal or vertical trend.

Log scale trending

This feature enables trending of logarithmic trending on the video chart. This feature is enabled by the following rules :

1.Programming the decimal point for trend point #1 as X.XXEXX and then trend point #1 and any subsequent trend point that also has X.XXEXX as the decimal point will be plotted logarithmically with the number of log divisions derived automatically from the low and high limit of point #1.

2.Setting up the trend display limits decimal position to be X.XXEXX and then any trend point that also has X.XXEXX as its decimal position will be plotted logarithmically with the number of log divisions derived automatically from the low and high of the first trend point found with X.XXEXX decimal position.

Video Recorder – User Manual 153