Velp Scientifica
–TB1 Manual
13
3.2.2 Measurement Procedure
1. Place TB1 turbidimeter on a flat and level surface.
2. Place the sample vial inside the sample well and
align the vial’s mark
with the meter’s index mark. See below
Align index mark on
the sample vial with
the index mark on
the TN-100/ T-100
turbidimeter and
push till it is fully
snapped in
IMPORTANT
:
Place meter on a flat
and level surface.
DO NOT hold it on
hands while operating
the meter. It may lead to
inaccurate readings
Light shield cap for
covering the vial during
measurements
Figure 8:
Align sample vial's mark with meter's index mark
3. Push the vial until it is fully snapped in.
4. Cover the vial with the light shield cap.
5. Turn on the meter by pressing the
ON/OFF key.
6. After the power-sup sequence, the
display blinks [--Rd--] for about 12
seconds. See Figure 9.
7. A value will appear. Note the reading.
8. If necessary, please the second sample
vial into the sample well. Remember to
align the vial’s mark with the meter’s
index mark.
9. Press READ/ENTER key. The display
blinks [-- Rd --] and a value will appear.
Note the reading.
10. Repeat steps 2 through 9 for all of your
samples.
Flashes about 10
times
SAMPLE
Unknown
NTU
Place vial
into the
sample well
NTU
READ
ENTER
Measurement mode can start from
either situation:
1. [STbY] after calibration;
2. After powering up the meter
Figure 9: Reading turbidity
Figure 10:
Value tubidity
