Res]; Table 13. Molbloc-L Size And Nominal Range Designations; Table 14. Molbloc-S Size Designation And Pressure To Flow Conversion Ratio (K F) - Fluke MOLBOX RFM Operation And Maintenance Manual

molbloc-S elements are also identified by size designations, each of which relate
to a specific molbloc-S K
type and the pressure limitations of the application and molbox used.
information on the possible molbloc-S flow ranges with various operating
pressures, see Section 1.2.4.2.2). molbloc-S size and K
given in Table 14.
Table 14. molbloc-S Size Designation and Pressure to Flow Conversion Ratio (K
3.4.9

[RES]

PURPOSE
To set the resolution of molbox RFM's display of the flow through the molbloc and other flow
display and entry values.
PRINCIPLE
The resolution with which the flow measured by molbox RFM is displayed can be adjusted. This
feature can be used to reduce the resolution when lower precision measurements are being
made and additional digits might confuse or distract the operator.
The resolution setting determines the number of digits with which flow is displayed. The desired
resolution is calculated based on the nominal nitrogen gas full scale of the molbloc range in
the current flow unit of measure and then rounded to the furthest digit to the right (i.e., resolution
of 0.01 % on a 100 sccm molbloc is 0.01 sccm).

Table 13. molbloc-L Size and Nominal Range Designations

molbloc
"NOMINAL
RANGE"
DESIGNATION
10 sccm
50 sccm
100 sccm
200 sccm
500 sccm
1 slm
5 slm
10 slm
30 slm
100 slm
value. molbloc-S flow ranges depend on calibration
F
K
F
(sccm/kPa)
50
100
200
500
1 000
2 000
5 000
10 000
Page 71
molbloc-L SIZE
DESIGNATION
1E1
5E1
1E2
2E2
5E2
1E3
5E3
1E4
3E4
1E5
value correspondence are
F
molbloc-S SIZE
DESIGNATION
5E1-S
1E2-S
2E2-S
5E2-S
1E3-S
2E3-S
5E3-S
1E4-S
© 1998-2007 DH Instruments, a Fluke Company
3. OPERATION
For
F)