Hach 2100N Basic User Manual page 8

Table 1 Key descriptions (continued)
Key Description
Turns Ratio on or off.
Turns signal averaging on or off.
Sends the data that is on the display to a printer or computer.
Sends a calibration data report to a printer or computer when in
Calibration mode. Sends diagnostic results to a printer or computer
if held down when the instrument is turned on. Provides a print of
the setup commands when in Setup mode.
Starts or completes a calibration.
8 English
Figure 5 Indicator lights
1 NEPH light
2 EBC light
3 NTU light
4 Lamp light
5 Manual Range light
Table 2 Light descriptions
Light Description
NEPH Illuminated when the instrument is set for NEPH (nephelo) unit of
measure.
EBC Illuminated when the instrument is set for EBC unit of measure.
NTU Illuminated when the instrument is set for NTU unit of measure.
6 Auto Range light
7 CAL? light
8 RATIO light
9 SIGNAL AVG light
10 S0–S4 lights