740 Portable Suspended Solids
7.5.2
Linked Units
The m/g and g/l units are linked such that changing from one to the other will cause a
change in the display range such that the display value is appropriate for the units
selected. The linked relationship between units and ranges is shown in the table below.
Old Range
Old Units
Units Changed To:
New Range
0 – 20000
mg/l
g/l
0 – 20.00
0 – 20.00
g/l
mg/l
0 – 20000
Note: Changing from/to any units other than those shown will not effect the
display range.
7.6 Set Damping Range
The 7200 Monitor has the ability to apply damping to the incoming sensor signal such
that a stable measurement value can be displayed. This is essential in applications
where the effluent being monitored produces a fast varying sensor signal such as in an
aeration process.
The response time quoted for each damping rate is indication of the monitor’s
performance when a step change of 0 to 100% occurs on the sensor input. This can be
useful when selecting the damping rate to be used for a particular application.
Note: Pressing the OK key whilst in measure mode causes the display value to
be immediately updated (bypassing damping) - this is very useful when high
levels of damping are used.
Damping Rate
Response Time
(Seconds)
Typical Use
Instant
0.2
Instrument Demonstration
Very Fast
1
Fast
10
Final Effluent
Medium
30
Slow
60
Aeration Lane
Very Slow
120
172430IM-Iss07.odt 172430IM-Iss07 Issue Date 23/10/2014
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