Specifications

MFC-CB™ Operation and Maintenance Manual
©2001~2007 DH Instruments, a Fluke Company Page 22
OPERATION
To activate the DIF DISPLAY, press [DISPLAY] and select <3dif>. To reach the
DIF DISPLAY, it is required that DEV1 and DEV2 be set in the same unit
of measure. If the DIF DISPLAY is attempted while the unit of measure on the
two device channels is not the same, an error message appears. In this case,
set both channels to the same unit of measure and retry.
With the DIF DISPLAY active, the MAIN run screen is:
1. Standard MAIN screen top line for the active
device channel.
2. Indication of difference calculation formula, the
active device channel is to the right.
3. Difference of the inactive and active device
channel measurements.
While in the DIF DISPLAY, changing the unit of measure causes the display to
revert back to the CLEAN DISPLAY. This can happen by making a unit change
using [UNIT] or by selecting a new MFC profile using [MFC].
To switch the DIF DISPLAY from D2 – D1 to D1 – D2 and vice versa, change the
active channel by pressing [DEV1/2].
To go to a DISPLAY other than DIF, press [DISPLAY] and make a new
DISPLAY choice.
3.2.4.4 <4RATIO>
PURPOSE
To display the ratio of the measurements of the inactive device channel and the
active device channel.
See Section 3.2.4, PRINCIPLE.
OPERATION
To activate the RATIO DISPLAY, press [DISPLAY] and select <4ratio>.
To reach the RATIO DISPLAY, it is required that DEV1 and DEV2 be set in the
same unit of measure. If the RATIO DISPLAY is attempted while the unit of
measure on the two device channels is not the same, an error message appears.
In this case, set both channels to the same unit of measure and retry.
100.00 sccm 99.998
Δ
0.035 D2-D1
2