Hach 2100P User Manual

64
SECTION 4, continued
9. Replace the battery(s) and battery cover.
10. Insert the 800 NTU formazin standard into the sample cell. Press
and hold
READ. Then press I/O. Release the READ key after the
software version number disappears from the display (for models
with serial numbers less than 920300000800,
2100 disappears).
READ
I
O

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