Fluke 8845A, User Manual

Page: 47 / 103

Front-Panel Operation
Controls and Indicators
3
3-5
Table 3-1. Front-Panel Controls and Connectors (cont.)
Item Description
D
Memory key for accessing internal and external memory
[1]
containing meter setups and
measurements. See the “Accessing and Controlling Memory” section for more
information.
E
USB Port.
[1]
Connection for optional memory device to store meter readings.
F
Standby key to turn off the display. While in standby, the Meter will not respond to
remote or front-panel commands. When taken out of standby, the Meter sets itself to its
power-up configuration.
G
Instrument Setup key. Accesses communication interface selection and setup, remote
command set, system settings, and meter reset.
H
Measurement Setup key. Accesses to resolution setting, trigger functions, temperature
setup, dBm reference selection, continuity settings, and other measurement related
parameters.
I
Trigger key. Triggers measurement when trigger is set to external triggering. See the
“Controlling Trigger Functions” section later in this chapter to learn how to use the
trigger key (TRIG) to control the Meter’s measurement cycle.
J
Analyze key. Accesses math functions, Statistics, TrendPlot, and Histogram.
K
Zero key. Uses the present reading as an offset value to create relative readings.
L
Meter function keys. Selects meter function between volts dc, volts ac, amp dc, amps
ac, ohms, continuity, diode test, frequency, period, capacitance
[1],
and temperature
[1]
.
For the 8845A, the lower four keys select different functions; see inset.
M
Range keys. Selects between manual and auto range mode. Also increases or
decreases the range when in manual ranging mode.
N
Back key. Backs up one layer in the menu selection.
O
Front and Rear input switch. All front-panel input connectors, except 10 A, are available
on the rear-panel of the Meter. These switches switch the Meter’s input between them.
P
400 mA and 10 A input connectors for ac and dc current measurement functions.
Notes:
[1] Available on 8846A only
Display Panel
The display panel described in Table 3-1, performs the following three functions:
•
Displays measurements as a value, with measurement units, and measurement statistics
in both numerical and graphical format (TrendPlot and Histogram).
•
Displays soft labels for soft keys, F1 through F5.
•
Identifies the current mode of operation, Local (MAN) or Remote (REM).