Hach-Lange 2100 AN Laboratory Turbidimeter User Manual - Manual (Page 41)

Connect to a printer or computer
Use the serial interface (RS232) connector on the back of the instrument
to transmit data from the instrument to an external printer or a serial
communication port on a computer. Refer to
Figure 2 on page 8.
To connect a serial printer to the instrument, use a printer cable
assembly that is terminated with a standard 25-pin D connector. A serial-
to-parallel converter can be used to print to a parallel printer. Data is
transmitted to a printer as a 39-character string plus the line feed and
carriage return.
To connect a computer to the instrument, use a serial communication
cable with a DB9 connector.
Note: Use of the specified cable or equivalent is mandatory for CE compliance (a
shielded cable assembly must be used).
Configure the printer output
1. Push SETUP. The SETUP light turns on.
2. Use the arrow keys to select the printer option:
Option Description
01 Sets the printer speed—FAST PRT or SLOW PRT (2.5 second
delay).
02 Sets the printer to use—INTERNAL, EXTERNAL
(RS232 connection) or BOTH.
03 Sets the print time interval for automatic prints of the reading on the
display in minutes and seconds (mm-ss)—00-15 to
99-99 (disable=00-00).
Note: To turn the print interval feature on or off, push PRINT.
04 Sets the printer contrast—0 (darkest print) to 7 (lightest print).
3. Push ENTER.
4. Use the arrow keys to change the value.
5. Push ENTER.
6. Push SETUP.
Configure the RS232 connection
1. Push SETUP. The SETUP light turns on.
2. Use the arrow keys to select an option:
Option Description
10 Sets the baud rate (default=1200).
11 Sets the character length (default=8).
12 Sets the stop bit (default=1).
13 Sets the parity select (default=NONE).
3. Push ENTER.
4. Use the arrow keys to change the value.
5. Push ENTER.
6. Push SETUP.
Computer (RS232) commands
A communication program (i.e., such as Window Terminal or ProComm
Plus) is recommended for computer operation of the instrument.
Configure the communication program to the RS232 connection settings.
Refer to
Configure the RS232 connection on page 39.
Table 5 shows the RS232 command set for the instrument.
Table 5 RS232 command set
Command Description
VAL Gets the current measurement with the measurement units.
LST Gets the calibration standards and coefficients.
DAT Gets the current date.
To change the date, enter DAT=MM/DD/YY (MM=month, DD=day,
YY=year), then push Enter.
TIM Gets the current time in 24-hour format.
To change the time, enter TIM=HH:MM (HH=hour, MM=minutes),
then push Enter.
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