Hach 2100P ISO User Manual

27
SECTION 2, continued
Preparing the 20, 100 and 800 FNU standards
2.4.3 Calibrating the Turbidimeter
NOTES
• If the I/O key is pressed during calibration, the new calibration data
is lost and the old calibration will be used for measurements. Once
in calibration mode, only the
READ, I/O, UP, and RIGHT keys function.
Signal averaging and range mode must be selected before entering
the calibration mode.
Table 1 Formazin Standard Preparation
Step 1 Step 2 Step 3
Standards
20 FNU Add 100 mL of
dilution water to a
clean 200-mL Class
A volumetric flask.
With a TenSette1
pipet, add 1.00 mL of
well-mixed 4000 FNU
Formazin stock
solution to the 200-mL
flask.
1 A Class A volumetric pipet may be used in place of a TenSette Pipet.
Dilute to the mark
with dilution water.
Stopper and mix.
100 FNU Add 100 mL of
dilution water to a
clean 200-mL Class
A volumetric flask.
With a TenSette pipet,
add 5.00 mL of
well-mixed 4000 FNU
Formazin stock
solution to the 200-mL
flask.
Dilute to the mark
with dilution water.
Stopper and mix.
800 FNU Add 50 mL of
dilution water to a
clean 100-mL Class
A volumetric flask.
With a TenSette pipet,
add 20.00 mL of
well-mixed 4000 FNU
Formazin stock
solution to the 100-mL
flask.
Dilute to the mark
with dilution water.
Stopper and mix.

Hach 2100P ISO Specifications

General

Brand	Hach
Model	2100P ISO
Category	Measuring Instruments
Language	English