Hach 2100P User Manual

52
SECTION 3, continued
10. The display will
show the S2 icon (with
the 2 flashing) and
100 NTU or the value
of the S2 standard for the
previous calibration.
11. Edit the standard
concentration by
pressing →. The 2 will
stop flashing and the left
digit in the display will
flash. Press ↑ to scroll the
digit up to the
appropriate number.
Press → again to move
the cursor to the next
digit and edit it in the
same manner.
12. When all the digits
show the appropriate
value, press
READ.
The instrument will
count from 60 to 0
(67 to 0 if signal average
is on), measure the
turbidity and store the
value. Remove the
sample cell from the
cell compartment.
13. Thoroughly mix the
700 to 900 NTU
standard, then fill a clean
sample cell to the line
with the standard. Insert
the cell into the cell
compartment.
14. The display will
show the S3 icon (with
the 3 flashing) and
800 NTU or the value
of the S3 standard for the
previous
15. Edit the standard
concentration by
pressing →. The 3 will
stop flashing and the left
digit in the display will
flash. Press ↑ to scroll the
digit up to the
appropriate number.
Press → again to move
the cursor to the next
digit and edit it in the
same manner.
NTU
CAL
READ
NTU
CAL

Hach 2100P Specifications

General

Range	0 to 1000 NTU
Light Source	Tungsten filament lamp
Detector	Silicon photodiode
Operating Temperature	0 to 50 °C (32 to 122 °F)
Power	4 AA alkaline batteries
Resolution	0.01 NTU
Measurement Principle	Nephelometric
Display	LCD