Fluke 8845A, Руководство пользователя

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8845A/8846A
Users Manual
1-6
Symbols
Table 1-2 is a list of safety and electrical symbols that appear on the Meter or in this
manual.
Table 1-2. Safety and Electrical Symbols
Symbol Description Symbol Description
W
Risk of danger. Important
information. See manual
O
Display ON / OFF
X
Hazardous voltage. Voltage >30 V dc
or ac peak might be present
J
Earth ground
B
AC (Alternating Current)
E
Capacitance
F
DC (Direct Current) G Diode
I
Fuse
D
or
C
AC or DC (Alternating or Direct
Current)
Y
Digital signal
R
Continuity test or continuity beeper
tone
U
Maintenance or Service
Y
Potentially hazardous voltage
CAT II
IEC 61010 Overvoltage (installation or
measurement) Category 2.
T Double insulated < Recycle
h
Static awareness. Static discharge
can damage part(s)
~
Do not dispose of this product as unsorted
municipal waste. Go to Fluke’s website for
recycling information.
Instrument Security Procedures
This section describes the Meter’s memory elements and the procedures for clearing
them.
Volatile Memory
Table 1-3 lists the Meter’s volatile memory elements.
Table 1-3. Volatile Memory Space
Type Size Function
SDRAM 128 MB Out-guard measurement data, user strings, temporary configuration information,
and Ethernet Host name.
SRAM 4 MB In-guard Measurement data and configuration information.
To clear both volatile memory elements listed in Table 1-3:
1. Press
M
.
2. Press the
MANAGE MEMORY
soft key.
3. Press the
ERASE MEMORY
soft key.