37
Memory free, List block names, Next block to view, View log as text, View log as graph, Units, Graph Y axis max, Clear
log and Exit are the same as described on 3.5 - Main Menu - Data Logger.
4.2
4-20 mA Key
The 4-20mA output can be scaled to whatever the maximum flow rate is. It is also possible to enter a negative figure for the
minimum output, which would enable a reverse flow to be monitored. The 4mA would then be the maximum reverse flow (e.g.-
100 lpm) and the 20mA would be maximum positive flow (e.g.100 lpm).
4.2.1
mA Out
This displays what the current output is giving at any particular
time.
4 - 20MA yy-mm-dd hh:mm:ss
mA out
0.00
Output
OFF
Units
m/s
Flow at max. output
3171
Flow at min. output
0.00
Output mA for error
22
Exit
4.2.2
Output
This option allows the user to select between three different
outputs or switching the output off. The display will read as
follows.
Scroll down the options to select required output, and press
ENTER. The display will then revert back to the 4-20mA menu
and Flow at max. output.
OUTPUT yy-mm-dd hh:mm:ss
OFF
4 - 20mA
0 - 20mA
0 - 16mA
4.2.3
Units
The flow units can be changed at this stage by selecting them from the keypad. When selected, scroll down to move onto the
next option.
