Anritsu MS2024A/MS2026A User Manual page 277

Appendix B — Error Messages
It is important to keep the fan inlet and exhaust ports clear of obstructions. The cooling fan
will vary the speed in relation to the internal temperature of the instrument. The fan will
turn on at low speed when the internal temperature of the instrument reaches 44ºC, and will
increase the fan speed to maximum at 54ºC. As the internal temperature of the instrument
decreases, the fan will reduce speed until the temperature reaches 39ºC, at which point the
fan will turn off.
Temperature Rising
FAN
SPEED
-100
TEMP
OFF
FAN
SPEED
Temperature Falling
Figure B-1. Fan Speed vs. Temperature
Fatal Error
Usually caused by a failure to communicate with one section or another. Sometimes resolved
by restarting the unit or by Factory Defaults, ESC+ON, resetting of the unit. Under extreme
cases the use of MASTER RESET, System+ON, may resolve the issue. Caution: Use of
MASTER RESET, System+ON, will erase all user saved setups and measurement traces and
return the unit to a fully Factory Default condition. If the error persists, then contact your
Anritsu Service Center.
Fatal error, EEPROM failed
Hardware communications between modules has failed. Insure that the battery level is
adequate for operation or that temperature is within acceptable limits. Reset to factory
defaults with either Factory Defaults, ESC+ON, or MASTER RESET, System+ON. Caution:
Use of MASTER RESET, System+ON, will erase all user saved setups and measurement
traces and return the unit to a fully Factory Default condition. If the error persists, then
contact your Anritsu Service Center.
Fatal error, no SPA board connected
Hardware communications between modules has failed. Insure that the battery level is
adequate for operation or that temperature is within acceptable limits. Reset to factory
defaults with either Factory Defaults, ESC+ON, or MASTER RESET, System+ON. Caution:
Use of MASTER RESET, System+ON, will erase all user saved setups and measurement
traces and return the unit to a fully Factory Default condition. If the error persists, then
contact your Anritsu Service Center.
MS20xxA VNA Master UG 10580-00166 Rev. C
OFF
47
41 43 45
39
42 44 46
40
LOW
LOW
51 53
49
54
48 50 52
HIGH
B-3 Operation Error Messages
HIGH
85 90
+100
o
C
B-5