Fluke 87 V/AN, Руководство по обслуживанию

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87 V/AN
Service Manual
28
Table 15. Accuracy Tests (cont.)
Step Test Function Range 5500A Output Display Reading
29
60 nS Open input -0.10 to 0.10
30
nS
Conductance
60 nS 100 M
Ω
9.80 to 10.20
31
G
Diode
6 V 3.0 V dc 2.939 to 3.061
32
?
AC Amps
6 A 3.0 A, 60 Hz 2.968 to 3.032
33
A
DC Amps
6 A 3.0 A 2.990 to 3.010
34
60 mA 33 mA, 60 Hz 32.65 to 33.35
35
m
?
AC Milliamps
400 mA 330 mA, 60 Hz 326.5 to 333.5
36
60 mA 33 mA 32.89 to 33.11
37
m
[
DC Milliamp
400 mA 330 mA 329.1 to 330.9
38
600
µ
A 330
µ
A, 60 Hz 326.5 to 333.5
39
U
?
AC Microamps
6000
µ
A 3300
µ
A, 60 Hz 3265 to 3335
40
600
µ
A 330
µ
A 328.9 to 331.1
41
U
[
DC Microamps
6000
µ
A 3300
µ
A 3291 to 3309
42
10 nf Open input
2
0.21 to 0.31
43
100 nf 5 nf
5
4.7 to 5.3
44
E
Capacitance
100
µ
f 9.5
µ
f 9.2 to 9.8
45
1000 V 400 V, 400 Hz 372 to 408
46
K
Low Pass Filter 1000 V 400 V, 800 Hz
4
226 to 340
4
47
Max = 5.896 to 6.104
48
L
Peak Min/Max
6 V
8 Vpp, 2 kHz Sq. Wave,
DC offset 2 V
Min = -1.898 to -2.102
49
0
°
C -1.0 to 1.0
50
m
L
Temperature
3
100
°
C 98.0 to 102.0
51
Press backlight button Backlight comes on
52
Press backlight button Backlight Intensifies
53
Backlight
Press backlight button Backlight off
1. Or short test leads and use REL to offset test lead resistance.
2. Remove test leads from unit.
3. To ensure accurate measurement, the Meter and thermocouple adapter must be at the same temperature. After connecting the thermocouple
adapter to the Meter allow for reading to stabalize before recording display reading.
4. The Meter accuracy is not specified at this input signal frequency with Low-pass filter selected. The display reading shown, check that the Low-pass
filter is active and follows an expected roll-off curve.
5. Use REL to compensate for internal Meter and lead capacitance. The test leads must be disconnected from the calibrator before pushing REL.