Fluke 225C Service Manual - Page 36

Input A & B AC Coupled Lower Frequency, RECALL, SCREEN+SETUP, RECALL SETUP, READING 1

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Fluke 19xB-19xC-2x5C Service Manual Table 4-3. Volts AC Measurement Verification Points Range 2 mV/div 1) (Select 10 ms/div) Set input A&B Bandwidth 10 kHz to prevent OL due to calibrator noise: see step 2. 5 mV/div (Select 20 μs/div). Set input A&B Bandwidth 20 MHz 10 mV/div 20 mV/div 50 mV/div 100 mV/div 200 mV/div 500 mV/div (Select 10 ms/div) 500 mV/div (Select 20 μs/div) 1 V/div 2 V/div 5 V/div 10 V/div 20 V/div 50 V/div 100 V/div 1) C versions only 5500A output V ac Frequency 4 mV 60 Hz 10 mV 20 mV 40 mV 100 mV 200 mV 400 mV 900 mV 900 mV 2 V 4 V 9 V 20 V 40 V 90 V 200 V 20 kHz 20 kHz 20 kHz 20 kHz 20 kHz 20 kHz 60 Hz 20 kHz 20 kHz 20 kHz 20 kHz 20 kHz 20 kHz 20 kHz 20 kHz Input A&B Reading 3.0 mV to 5.0 mV 8.3 mV to 11.7 mV 18.0 mV to 22.0 mV 37.5 mV to 42.5 mV 96.0 mV to 104.0 mV 180 mV to 220 mV 375 mV to 425 mV 877 mV to 923 mV 863 mV to 937 mV 1.80 V to 2.20 V 3.75 V to 4.25 V 8.63 V to 9.37 V 18.0 V to 22.0 V 37.5 V to 42.5 V 86.3 V to 93.7 V 180 V to 220 V 4.6.4 Input A & B AC Coupled Lower Frequency Test Proceed as follows to test the ac coupled input low frequency accuracy: 1. Connect the test tool to the 5500A as for the previous test (see Figure 4-3). 2. Select the following test tool setup: • Recall the created SETUP 1 (see section 4.4.3): press , RECALL , select SCREEN+SETUP 1 , press RECALL SETUP . • Press • Press • Press READING 1 , and select on A | V ac. READING 2 , and select on B | V ac. • Press , then using select COUPLING AC • Press , then using select COUPLING AC 4-12

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Fluke 19xB-19xC-2x5C
Service Manual
4-12
Table 4-3. Volts AC Measurement Verification Points
Range
5500A output
Input A&B
Reading
V ac
Frequency
2 mV/div
1)
(Select
10 ms/div)
Set input A&B Bandwidth 10 kHz
to prevent OL due to calibrator
noise: see step 2.
4 mV
60 Hz
3.0 mV to 5.0 mV
5 mV/div
(Select 20
μ
s/div)
.
Set input A&B Bandwidth 20 MHz
10 mV
20 kHz
8.3 mV to 11.7 mV
10 mV/div
20 mV
20 kHz
18.0 mV to 22.0 mV
20 mV/div
40 mV
20 kHz
37.5 mV to 42.5 mV
50 mV/div
100 mV
20 kHz
96.0 mV to 104.0 mV
100 mV/div
200 mV
20 kHz
180 mV to 220 mV
200 mV/div
400 mV
20 kHz
375 mV to 425 mV
500 mV/div
(Select
10 ms/div)
900 mV
60 Hz
877 mV to 923 mV
500 mV/div
(Select
20
μ
s/div)
900 mV
20 kHz
863 mV to 937 mV
1 V/div
2 V
20 kHz
1.80 V to
2.20 V
2 V/div
4 V
20 kHz
3.75 V to 4.25 V
5 V/div
9 V
20 kHz
8.63 V to 9.37 V
10 V/div
20 V
20 kHz
18.0 V to 22.0 V
20 V/div
40 V
20 kHz
37.5 V to 42.5 V
50 V/div
90 V
20 kHz
86.3 V to 93.7 V
100 V/div
200 V
20 kHz
180 V to 220 V
1)
C versions only
4.6.4 Input A & B AC Coupled Lower Frequency
Test
Proceed as follows to test the ac coupled input low frequency accuracy:
1.
Connect the test tool to the 5500A as for the previous test (see Figure 4-3).
2.
Select the following test tool setup:
•
Recall the created SETUP 1 (see section 4.4.3): press
,
RECALL
,
select
SCREEN+SETUP
1
, press
RECALL SETUP
.
•
Press
•
Press
READING 1
, and select
on A |
V ac
.
•
Press
READING 2
, and select
on B |
V ac
.
•
Press
, then using
select
COUPLING AC
•
Press
, then using
select
COUPLING AC