85RF Fluke Electronics, 85RF Datasheet - Page 3
85RF
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
calibrator signal generator for 1V rms at 25 MHz and the
DMM to measure 1V dc.
2.
If the probe is functioning but is not within these limits,
access and adjust R2 for a DMM reading between 0.990 and
1.010V dc. Reassemble the probe.
3.
calibrator and reduce the output level to 0.250V rms 1 MHz.
The DMM should read between 0.23 and 0.28V dc.
4.
frequency to 100 kHz, and increase the voltage to 30V ac
rms. (Do not exceed this value.)
Required Equipment List
The following equipment (or equivalent) is required for
testing the performance of the 85RF:
EQUIPMENT TYPE
AC INPUT
Equipment Configuration for Performance Testing
The DMM should read between 0.950 and 1.050V dc.
Transfer the unit under test to the Normal output of the
Set the AC Calibrator to STDBY, decrease the
AC Calibrator
50-Ohm Feed Thru
Termination
BNC Jack to Banana
Plug Adapter
BNC to Probe Adapter
Digital Multimeter, 3-
1/2 Digit (DMM)
BNC Jack to Jack
Adapter
1
220 pf
C1
C1
6
Figure 1. Schematic Diagram
R1
2
3
CR1
220 k
4
R1
CR1
Figure 2.
Fluke 85RF Probe under test
500 k
Fluke 5520A-SC600
Fluke Y9103
Fluke Y9108
Fluke P/N 574756
Fluke 87-III
Pomona 3283
RECOMMENDED MODEL
R2
CR2
R3
CR2
R3
1.3 M
R2
5
DC OUTPUT