Hach-Lange 2100 N Laboratory Turbidimeter User Manual - Manual (Page 11)

User interface
Figure 4 Keypad
1 ENTER key 5 RATIO key
2 EDIT (arrow) keys 6 SIGNAL AVG key
3 RANGE key 7 PRINT key
4 UNITS/Exit key 8 CAL key
Table 1 Key descriptions
Key Description
Enters the value on the display. Starts the measurement of a
calibration standard. Clears data from the buffer.
Changes the numbers and/or letters on the display. Steps through
the calibration standards. The right arrow key moves the cursor to
the previous or next digit.
Selects automatic or manual ranging.
Selects the unit of measure. Exits Calibration without saving
changes.
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.
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