Hach 2100AN IS User Manual page 13

Figure 5 Indicator lights
1 Lamp icon light
2 "CAL?" light
3 "Manual" light
4 "Auto" light
5 RATIO light
6 FLOW light
7 PRINT light
8 SIGNAL AVG light
9 CAL/Zero light
10 SETUP light
11 SAMPLE light
Table 2 Light descriptions
Light Description
Illuminated when the instrument light source is on.
Flashes when there is not sufficient light for measurement.
CAL? "CAL?" is shown during a calibration if the calibration data is not
within the acceptable range.
Flashes when the instrument should be calibrated.
Note: The CAL? light applies when a 25-mm sample cell is used. Ignore the
CAL? light if illuminated during calibration when a smaller sample cell is used.
Push UNITS/Exit to start measurements.
Manual "MANUAL" is shown above the Range Mode label when the
instrument is in manual ranging mode.
Auto "AUTO" is shown below the Range Mode label when the instrument is
in auto ranging mode.
RATIO Illuminated when Ratio is on.
FLOW Illuminated when the Flow mode of operation is selected.
Flashes when the flow cycle is done.
PRINT Illuminated when the printer interval feature is selected.
Flashes when a print interval has been selected but is not active.
SIGNAL Illuminated when signal averaging is on.
AVG
CAL Illuminated when Calibration or Zeroing mode is selected.
Zero
SETUP Illuminated when Setup mode is selected.
SAMPLE Illuminated when Sample mode is selected.
English 11