Hach 2100P User Manual

68
SECTION 5, continued
5.2 The Diagnostic Procedure
1. Fill a clean sample
cell to the line with clear
water, cap the cell and
place it in the cell
compartment. Press the
READ key and wait until
the reading is finished.
2. Press: DIAG
The DIAG icon will
turn on and
1 will be
displayed below the icon.
The instrument will
measure the battery
voltage with the lamp off
and display the result in
volts (V). Then the lamp
icon will turn on and the
instrument will measure
the voltage with the lamp
on. The value is briefly
displayed before
defaulting to the
lamp-off reading. To
repeat the measurement,
press
READ.
3. To continuously
display the lamp-on
voltage, press →. The
lamp icon will flash.
Press → to turn the lamp
icon off (the lamp is not
on during this display).
DIAG
DIAG

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