38 OM Centrif Micro ΙΙ-5
HISTORY Screens
Figure 23, History Trend Graph
The Trend History Overview allows the user to view the various parameters listed on the right side
of the screen. The temperature scale in °F (°C) is on the left. Pressure in psi (kPa) and % RLA are
represented by the right-hand scale. The screen can display history for 8 hour, 2 hour or 20-minute
periods by pressing 8, 2, or 1/3 respectively. Some software versions have a 24 hour instead of an
8 hour period.
Pressing NOW for any time period will start the display for the current time beginning on the right
of the screen with history flowing to the left.
The arrow buttons scroll the time period forward or backward. Obviously if NOW is selected, the
forward button > will not go into the future.