85RF Fluke Electronics, 85RF Datasheet - Page 54

• Manufacturer Part Number: 85RF
• Description: PROBE HIGH FREQ 500MHZ
• Manufacturer: Fluke Electronics
• Type: High Frequencyr

Specifications of 85RF

• Impedance: 10M Ohm
• Voltage - Max: 30VRMS, 200VDC
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption
• Ratings: -
• Current Rating: -
• Color: -
• Termination: -
• Wire Insulation Material: -
• Cable Length: -
• Other names: 532457

8062A
Instruction Manual
The operation of the instrument is controlled by software routines that are
stored in the microcomputer memory. These routines include the normal
operating routine, the power-on self-test, or special self-test routines that may
be selected by the operator. When the instrument is first turned on, the
microcomputer performs the self-test routine which checks the LCD
segments and the interface to the MAC (refer to Chapter 2 for operating
instructions). While the LCD segments are on (a minimum of 1.6 seconds),
the microcomputer exercises the bus and checks the internal registers in the
MAC to make sure it has control over them. If the microcomputer detects a
problem with the MAC interface, it stays in the self-test routine with the
LCD segments on until the problem is resolved or the instrument is turned
off.
After the power-on self-test routine is successfully completed, the
microcomputer checks to see if the operator has selected the ratio self-test or
the switch decoding self-test (refer to Chapter 4 for operating instructions). If
neither of the self-tests has been selected, the microcomputer begins the
normal operating routine. The operating routine consists of four steps:
1.
3-4
Common
V/ /S
The microcomputer reads the function and range selections and checks
the two push buttons to determine the mode the operator has selected.
The microcomputer then configures the a/d converter.
A
Switches
Function
Range
and
V
/S
A
Figure 3-1. 8062A Block Diagram
V
A
AC
DC
Ohms Ref
Resistors
Voltage
Divider
Switch Sense
and
Current
Shunts
AC Converter
True RMS
/S
+1.0000V
A/D Ref
Source
Ohms
Power Supply
Converter
Control
Digital
Logic
Cont.
Logic
MAC
A/D
Ctl.
BUS
CTL
REL Push
Tone
computer
Buttons
Micro-
Supply
Power
and
Dy25f.eps