17
5.0 Operation
5.1.4 Setting the Range
The SF-1020i has ten (10) flow ranges (see
"Table 5-3. SF-1020i Nominal Flow Ranges"
testing in the range that provides a flow rate between 70% and 100% of the full-scale range. If uncertain
of the correct range to use, start with a high range and move down until you find the correct range. For
greatest accuracy, always test in the lowest range possible. If over 100% of range, then move up one
range. If less than 70% of range, then move down at least one range.
Range Setting Register
Register
Function
Data Type
Read/
Write
Value
Units
Scale
40023
RangeSetting
Int-16
R/W
Display current and set flow range 1-10
Register
40023 RangeSetting
provides the status (state) that the flowbench is currently in when read.
It also allows for the ability to change (set) states when this register receives commands. The following
commands are accepted:
Table 5-3. SF-1020i Nominal Flow Ranges
Range Number
Nominal Full-Scale Flow Range
1
25 cfm (12 lps)
2
50 cfm (24 lps)
3
100 cfm (47 lps)
4
150 cfm (71 lps)
5
200 cfm (94 lps)
6
300 cfm (142 lps)
7
400 cfm (189 lps)
8
500 cfm (236 lps)
9
700 cfm (330 lps)
10
1000 cfm (472 lps)
NOTE:
Register
40019 PercentFlow
can be used to read the current flow range percentage (% of Flow).
