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You may wish to use the Troubleshooting menu
to make sure that the instrument is configured
correctly for your application, and is in good
working order.
The instrument must be connected to your PC to
perform these tests.
SERIAL LINK TEST
Normally, the instrument will inform you of a
disconnected RS-232 (serial) link when
appropriate. However, you can confirm a good
connection using the Serial Link Test option, and
echoing a test message via the instrument.
Enter text characters in the Text to be sent box,
then click Send. If the serial link is operating
correctly, the exact same text will be displayed
back from the instrument in the Echo box.
KEYBOARD TEST
The Keyboard Test option will reveal whether all
the instrument buttons are functioning correctly.
Press any one of the instrument's buttons (except
the on/off button) for a full second or more. The
appropriate square on-screen should darken.
DISPLAY TEST
Choosing the Display Test option lets you
perform a one-way communication between
computer and instrument.
Type a number in the Number box (you may also
select one of three units positions for the LCD's
rightmost indicator bar as well). Then choose
Send. The number and indicator bar placement
should appear on your instrument LCD.
CLOCK SETTINGS
Choose the Clock settings option to set the date
and time in the instrument.
ANALOG VOLTAGES VIEW
The Analog Voltage View option gives a real-
time look at voltages used by the system to
transmit information about sensor current,
temperature and pressure. This is useful when
trying to identify an instrument problem with an
Orbisphere service representative either on-site
or over the phone.
The voltage limits for normal operation are:
• Current channel: -1.5 V to +1.5 V
• Temperature channel: +10 mV to +4 V
• Pressure channel: -100 mV to +100 mV
MEASUREMENTS VIEW
The Measurements View option confirms, on
your PC monitor, what your instrument should be
displaying on the LCD for gas concentration and
sample temperature.
Troubleshooting