
Instruction Manual TN-100/ T-100
13
NOTE:
1. NEVER pour liquid directly into the sample well of
the instrument. Always use a vial. The instrument
will only accurately measure the turbidity of a
sample when vials sealed with the black caps are
used. The black cap serves as both seal and a
light shield.
2. NEVER attempt to clean the sample well. The
optics may be damaged.
3. The instrument will automatically power off 20
minutes after the last key press for battery
conservation.
3.3
Single-Shot or Continuous Measurement
You can use TN-100/ T-100 turbidimeter to take a single reading or
perform continuous measurement. The latter is only used for indexing the
vials. See Section 8.5 - Indexing a Vial on page 20 for more information.
For single-shot measurement
:
1. Make sure the meter is sitting on a flat
and level surface and is in measurement
mode. The display shows the last
measured value or [STbY] after exiting
calibration mode.
2. Place sample vial in the sample well.
3. Press READ/ENTER key and release
immediately (<0.3 seconds). See Figure
12.
4. The display will blink [--Rd--] for 10 times
or more and then display the measured
value.
Press key and release
immediately
SAMPLE
Unknown
NTU
Place vial
into the
sample well
NTU
READ
ENTER
Flashes about 10
times
Figure 12: Single-shot measurement
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