Hach 2100P User Manual

33
SECTION 3 OPERATION
3.1 Operational Controls and Indicators
Key Description
Power key to turn instrument on and off. If no keys are pressed
for 5.5 minutes, the instrument turns off automatically.
Depressed to perform a measurement. To conserve battery
power, the lamp turns on only when READ is depressed.
A reading is displayed about 12 seconds after the key is
depressed. During the delay, a flashing
NTU is displayed.
After the reading is displayed, the lamp turns off and the
reading continues to be displayed. Continuous readings may
be done by holding this key if not in the Signal Averaging
mode. After the initial delay, the reading is updated every
1.2 seconds.
Used to perform a calibration or review calibration data. Also
terminates a calibration or calibration review and returns to the
2100P measurement mode.
2100P TURBIDIMETER
EDIT
DIAG
NTU
CAL?
POWER
MODE
CAL
DIAG
SIGNAL
AVERAGE
AUTO RNG SIG AVG
RANGE READ
I
O
READ
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