Hach 2100P ISO User Manual

40
SECTION 3, continued
1. Fill the clean sample
cell to the line with
high quality water
(< 0.5 FNU). Cap and
wipe with lint-free cloth.
Apply silicone oil. See
Section 2.4.2.2 on page
25 for more information
about high quality water.
2. Press: I/O. 3. Insert the sample
cell into the sample
compartment. Close
the cover.
4. Press: READ
Record the cell position
in the compartment and
the displayed reading.
Note: This procedure may be
easier if the user holds the
READ key through the whole
process. This allows the lamp
to remain on and make
continuous readings.
5. Remove the cell,
rotate it slightly and
reinsert it into the cell
compartment. Close the
cover, then press
READ.
Record the cell position
and the displayed
reading.
6. Repeat step 5 until
the lowest reading is
displayed. Place an
orientation mark on the
cell marking band near
the top of the cell so the
cell can be consistently
inserted in the position
that yields the lowest
reading. When using the
cell, always place it in
the instrument so the
orientation mark aligns
with the raised mark on
the instrument.
I
O
READ

Hach 2100P ISO Specifications

General

Instrument Type	Portable Turbidimeter
Measurement Range	0 to 1000 NTU
Resolution	0.01 NTU on lowest range
Light Source	Tungsten filament lamp
Detector	Silicon Photodiode
Operating Temperature	0 to 50 °C (32 to 122 °F)
Storage Temperature	-20 to 60 °C (-4 to 140 °F)
Power Supply	4 AA alkaline batteries
Dimensions	22.9 cm x 10.7 cm x 7.7 cm (9.0 in x 4.2 in x 3.0 in)
Compliance	ISO 7027