1.
Push the
CALIBRATION
key to
enter the Calibration
mode. Follow the
instructions on the
display.
Note: Gently invert each
standard before
inserting the standard.
2.
Insert the 20 NTU
StablCal Standard and
close the lid.
Note: The standard to
be inserted is bordered.
3.
Push
Read
. The
display shows
Stabilizing and then
shows the result.
4.
Repeat Step 2 and 3
with the 100 NTU and
800 NTU StablCal
Standard.
Note: Push Done to
complete a 2 point
calibration.
5.
Push
Done
to review
the calibration details.
6.
Push
Store
to save
the results.
After a calibration is
complete, the meter
automatically goes into
the Verify Cal mode. For
additional information,
refer to the CD for an
expanded version of this
manual.
Reading modes
1.
Push the
UP
or
DOWN
key to enter the Reading Options menu.
2.
Select Reading Mode to select one of the following options:
Option
Description
Normal (Default
setting)
The normal mode reads and averages three readings.
The result is shown after the reading.
Signal Average
The Signal Average mode compensates for reading
fluctuations caused by drifting of sample particles
through the light path.
The X-bar icon is shown on the display when signal
averaging is on.
The Signal Average mode measures 12 times and starts
to show the average after three readings. The final result
is the average of all 12 readings.
Rapidly Settling
Turbidity
™
(RST)
The Rapidly Settling Turbidity (RST) mode calculates
and continuously updates the turbidity reading of the
sample to a confidence of 95%, based on the
accumulated trend of the real time measured values.
The RST mode is best used on samples that settle
rapidly and continuously change in value. The reading
is based on a correctly prepared sample that is
homogeneous at the beginning of the reading. It is best
applied to samples that are greater than 20 NTU. The
sample must be mixed thoroughly by inversion
immediately before inserting it into the meter.
The target icon is shown on the display when the Rapidly
Settling Turbidity is on.
The Rapidly Settling Turbidity reads and calculates five
readings while showing intermediate results.
Maintenance
C A U T I O N
Personal injury hazard. Only qualified personnel should conduct the tasks
described in this section of the manual.
10
English
Summary of Contents for 2100Q
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