Specifications

3. OPERATION
Page 21 ©2001~2007 DH Instruments, a Fluke Company
3.2.4.2 <2SUM>
 PURPOSE
To display the sum of DEV1 and DEV2 measurement values.
See Section 3.2.4, PRINCIPLE.
 OPERATION
To activate the SUM DISPLAY, press [DISPLAY] and select <2sum>. To reach
the SUM DISPLAY, it is required that DEV1 and DEV2 be set in the same unit
of measure. If the SUM DISPLAY is attempted while the unit of measure on the
two device channels is not the same, an error message displays. In this case,
set both channels to the same unit of measure and retry.
With the SUM DISPLAY active the MAIN run screen is:
1. Standard MAIN run screen top line for the active
device channel.
2. Indication of sum calculation, the active device
channel is to the right.
3. Sum of DEV1 and DEV2 measurements.
While in the SUM 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 SUM 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 SUM, press [DISPLAY] and make a new
DISPLAY choice.
3.2.4.3 <3DIF>(DIFFERENCE)
 PURPOSE
To display the difference between the measurement of the inactive device
channel and of the active device channel.
See Section 3.2.4, PRINCIPLE.
100.00 sccm 99.998
ε 150.005 D1+D2
2