51
Instrument Operation
17. Zero Calibration
This menu item allows the user to activate or deactivate the zero
calibration (for low range only). Enabling this will prompt the user to
test three (3) replicates of the zero (0 mOsm) calibrator (3MA000) as
part of the low range calibration.
To set Zero Point Calibration on/off:
1. At Zero Calibration, press START to display [ON]< Zero Cal? *[OFF].
2. At [ON]< Zero Cal? *[OFF], press < or > to toggle between Zero
Calibration ON/OFF.
3. Once set press ENTER to confirm.
Using the RS-232 port
The RS-232 port (see Figure 5) allows you to output to an external
device, such as a computer. Almost every item of information displayed
by your instrument is also transmitted over the RS-232 port, including
test results, all error messages, and most display data from the
diagnostic menu.
The default serial data rate for communications is 9600 bps (bits per
second), though you may alternatively select 1200, 2400, 4800, and
19200 bps.
The DB-9 RS-232 port on your instrument conforms to the DTE EIA-
232C standard and can reliably communicate over shielded cable up to
10 meters in length, depending on the baudrate you use.
Note that your instrument is only designed to support unidirectional
communication with an external device. At this time, there is no
protocol for bidirectional communication.
For a sample RS-232 Port Setup, please see the Supplemental RS-232
Information at the end of this user’s guide.
Note This instrument requires the use of a null modem RS-232C cable.
There are several variations on null modem cables. Advanced
Instruments recommends that you purchase a RS-232C cable
direct from our factory.
To Next Page
Loading...
Need help?
General
