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

In addition, two user-defined measurement units can be specified. Refer
to
Application specific methods on page 45. The application specific
mode of operation uses the nephelometric optical system and the NTU
measurement mode.
The turbidimeter has a built-in printer and an RS232 output for
connection to a printer, data logger or computer and a recorder output.
The turbidimeter contains a real-time clock with battery. The clock
provides a time-date stamp on all data transmitted to the built-in printer
or to external devices by way of the RS232 interface (i.e., measurements
and calibration records).
Figure 1 Front overview
1 Mode display: shows the calibration
standard number, setup number or
sample number
5 Cover for the sample cell
compartment
2 Keypad 6 Printer cover
3 Sample cell holder 7 Eight-digit LED display
4 Light shield
Figure 2 Back overview
1 Power cord connector 5 Air purge fitting
2 Fuse holder 6 Recorder output jack for a chart
recorder (0 to 1 V output)
3 Power switch 7 Remote cable jack for flow valve
module connection to the automatic
flow cell (low pressure)
4 DB9 connector for RS232 cable 8 Lamp access cover
Product components
Refer to Figure 3 to make sure that all components have been received.
If any of these items are missing or damaged, contact the manufacturer
or a sales representative immediately.
8 English