3. OPERATION
©2001~2002
DH Instruments, Inc
Page 11
.
3.
O
PERATION
3.1
GENERAL MANUAL OPERATION
MFC-CB is designed to offer the optimum balance between simple, intuitive operation and the
availability of a variety of functions with a high level of operator discretion. The local operator
interface is through the front panel’s 2 x 20 character alpha-numeric display and a 4 x 4
multi-function keypad.
3.1.1
MAIN RUN SCREEN
The MFC-CB MAIN run screen is its home display that is reached on power up and from
which other functions and menus are accessed. It is the top level of all menu structures.
The MAIN run screen is where the MFC-CB is left in normal operation. It displays the set
point output, if applicable, and the measurement from the MFC or MFM as well as a variety of
additional information if desired.
1.
<
→
>
Active channel
indication in DEV1&2
DISPLAY mode (see Section 3.2.4.1). Blank if not
in DEV1&2 DISPLAY mode.
2.
<SSSSSS>
: Numerical value and sign of the set
point (see Section 3.2.8).
3.
<a>
: Indicates whether a user adjustment is being applied to the set point (see Section 3.3.5).
<a>
if an adjustment is being applied, blank if no adjustment is being applied.
4.
<UNIT>
: Unit of measure of the set point and measurement numerical values (see Section 3.2.2).
5.
<K>
: Indicates whether a gas correction factor (
K factor
) is being applied (see Section 3.2.1).
<K>
if a factor is being applied, blank if no factor is being applied.
6.
<a>
: Indicates whether a user adjustment is being applied to the measurement value (see
Section 3.3.5).
<a>
if an adjustment is being applied, blank if no adjustment is being applied.
7.
<MMMMMM>
: Numerical value of the measurement from the MFC or MFM.
8.
<Dn,c>
: Indicates which device channel is being displayed on the top line of the display.
<n>
is
<1>
for DEV1,
<2>
for DEV2.
<c>
indicates the current channel of the MFC Switchbox if a
Switchbox is connected to DEVn, blank if no Switchbox is in use (see Section 3.4.6).
9.
<DISPLAY MODE DATA>
: Information displayed depends on current DISPLAY mode (see
Section 3.2.4).
2
3
9
10
8
SSSSSSaUNITKaMMMMMM
→
D DISPLAY MODE Dn,c
