Fluke 5790A, Operator'S Manual

Page: 47 / 220

Features
Rear Panel Features
3
3-7
Table 3-2. Rear Panel Features (cont.)
Ref No. Name Function
4 CALIBRATION MODE
Switch
A slide switch that selects SERVICE or PERIODIC calibration. Periodic
calibration is what you perform at the end of each calibration cycle and is
all that is required to keep a normally-functioning 5790A operating in
specification. Service calibration is a more complete calibration that should
be done only after repair or replacement of an analog module. Service
calibration is the procedure done at the factory when the 5790A is built
.5 Line Voltage Shows the various settings of the line voltage Switch and switches, and
the correct replacement fuse ratings Fuse Rating for fuse F1 for operating
voltages of 110 (90-132) Label and 220 (180-264) V ac. Refer to
"Accessing the Fuse" in Section 2 for the fuse replacement procedure.
6 RS-232-C Connector A male (DTE) serial port connector for transmitting internal calibration
constant data to a printer, monitor, or host computer, and for remote
control of the 5790A. Section 7 describes proper cabling, how to set up the
serial interface, and how to transmit data from the 5790A. Section 5
describes how to use the serial interface for remote control.
7 F1 Fuseholder The line power fuse. Refer to "Accessing the Fuse"in Section 2 for fuse
rating information and the fuse replacement procedure.
8 AC PWR INPUT Connector A grounded male three-prong connector that accepts the line power
cord.
9 Line Voltage Selection
Switches
Select the operating line voltage. Refer to "Selecting Line Voltage" in
Section 2 for instructions on how to select operating line voltage
10 CHASSIS GROUND Binding
Post
A binding post that is internally grounded to the chassis. If the 5790A is
the location of the ground reference point in a system, this binding post
can be used for connecting other instruments to earth ground. (The
chassis is normally connected to earth ground through the three-conductor
line cord.) Also see GROUND Binding Post in Table 3-1.