SATEC PM296 - Manual (Page 60)

Chapter 5 Data Display 52
5.3 Self-Test Diagnostics Display
The PM296/RPM096 periodically performs self-test diagnostics during operation.
If the instrument fails the test, it discards the last measurement results, and an
error code is displayed for one second on all LEDs. Error codes are listed in
Table 5-2. Frequent failures may be the result of excessive electrical noise in the
region of the instrument. If the instrument resets itself continuously, contact your
local distributor.
Table 5-2 Self-Test Diagnostic Codes
Code Meaning Code Meaning
1 ROM error 5 Out of control trap
2 RAM error 7 Timing failure
3 Watch dog timer reset 8 Normal power up
4 Sampling failure 9 External reset (warm restart)
NOTE
The PM296/RPM096 provides a self-check alarm register accessible through
communications that indicates possible problems with instrument hardware or
setup configuration. The hardware problems are indicated by the appropriate bits,
which are set whenever the instrument fails self-test diagnostics, or in the event
of loss of power. The setup configuration problems are indicated by the dedicated
bit which is set when either
configuration register is corrupted. In this event, your
instrument will use the default configuration. For more information on the self-
check alarm register, refer to the communications reference guides shipped with
your instrument.