Hach-Lange 2100 AN IS Laboratory Turbidimeter Basic User Manual - Manual (Page 10)

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
AVG
Illuminated when signal averaging is on.
CAL
Zero
Illuminated when Calibration or Zeroing mode is selected.
SETUP Illuminated when Setup mode is selected.
SAMPLE Illuminated when Sample mode is selected.
Startup
Turn the instrument on
C A U T I O N
Infrared Light Hazard. The infrared light produced by this instrument can cause
eye injury. The infrared light source in this instrument only receives power when
the sample cell cover is closed.
1. Put the instrument on a stable, level surface that is free of vibration.
Do not put in direct sunlight.
2. Make sure that there is air circulation around the instrument. Keep
the back and area below the instrument free of material that could
decrease air flow through the vents.
3. Connect the power cord to the power plug on the back of the
instrument.
4. Connect the power cord to a power socket with ground contact.
5. Push the power switch on the back of the instrument to turn the
instrument on.
Turn the keypad sound off (optional)
By default, the instrument makes an audible sound when a key is
pushed. To turn the keypad sound off:
1. Push SETUP. The SETUP light turns on.
2. Use the arrow keys to select 00.
3. Push ENTER.
4. Use the arrow keys to select the sound option:
Option Description
BEEP ON An audible sound is made when a key is pushed.
BEEP OFF No sound is made when a key is pushed.
5. Push ENTER.
6. Push SETUP.
10 English