Specifications

Multi-Zone Gas Monitors

40 P/N: 3015-5074 Rev 10

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

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 ENTER 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.