Anritsu VNA Master MS2024B User Manual

Error Messages C-4 Operation Error Messages
MS20xxB UG PN: 10580-00301 Rev. D C-5
C-4 Operation Error Messages
Fan Failure
The system has determined that the fan should be running due to the internal temperature of
the unit, but cannot detect that the fan is actually running.
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 (refer to
Figure C-4). 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.
High Temp Warning
The internal temperature has reached an excessive level, 85ºC. Verify that the ventilation
openings are unobstructed and that the fan is running. Internal temperatures may be
manually verified by using the SELF TEST function. Turn off the unit and allow the
temperature to cool down. If the fault is not resolved and the internal temperature reaches
90ºC, then a countdown of 10 seconds will begin. The countdown gives the user a chance to
save the current setup before the instrument turns itself off (before internal temperatures
can cause any damage). If the error persists after removing any obstructions and allowing the
unit to cool, then reset to the factory defaults with Factory Defaults (Esc+On), or
Master Reset (System+On).
Operation not Permitted in Recall Mode
Attempted to perform an operation on a recalled trace. Many operations are valid only on a
live or active trace.
Figure C-4. Fan Speed vs. Temperature
Caution
Use of Master Reset (System+On), will erase all user saved setups and
measurement traces and will return the VNA Master to a full Factory Default
condition. If the error persists, then contact your Anritsu Service Center.
FAN
SPEED
OFF LOW HIGH
H
I
T
E
M
P
W
A
R
N
I
N
G
A
U
T
O
S
H
U
T
O
F
F
Temperature Rising
FAN
SPEED
OFF LOW HIGH
Temperature Falling
TEMP
39
41
43
45
47
49
51
53
-100
85
90
+100
o
C
40
42
44
46
48
50
52
54

Anritsu VNA Master MS2024B Specifications

General

Brand	Anritsu
Model	VNA Master MS2024B
Category	Measuring Instruments
Language	English