Hach-Lange 2100 N Laboratory Turbidimeter Basic User Manual - 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.
Figure 5 Indicator lights
1 NEPH light 6 Auto Range light
2 EBC light 7 CAL? light
3 NTU light 8 RATIO light
4 Lamp light 9 SIGNAL AVG light
5 Manual Range light 10 S0–S4 lights
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.
8 English