TB 9-6625-1493-24
Test instrument parameters
Performance specifications
Fluke, Models 887A, 887AB, and 887AB/AN
DC voltage
Range: 0 to 1100 V
Conventional voltmeter accuracy: 3.0% of range
Reference: (.00285% of input + .0001 % of range + 5 V) at 23 oC ( 2o)
Transfer: (.005% of input +5 V) 16 to 32 oC
AC voltage
Range: 1.0 mV to 1100 V
Conventional voltmeter accuracy: 3.0% of range
(% of input +% of range) at 23 oC ( 2o), relative humidity less than 70%
Reference Level
Input voltage
30 Hz to 5 kHz
5 to 10 kHz
10 to 20 kHz
1 mV to 500 V
0.053 + 0.0025
0.075 +0.005
0.155 +0 .01
500 to 1100 V
0.1 + 0
0.1 + 0
0.15 + 0.01
(% of input + V) at 13 to 35 oC (55 to 95 oF), relative humidity less than 70%
Transfer Level
Input voltage
5 to 10 Hz
10 to 20
20 Hz to 5
5 to 10
10 to 20
20 to 50
50 to 100
Hz
kHz
kHz
kHz
kHz
kHz
1 mV to 1100 V
1.0 + 25
0.3 + 25
0.1 + 25
0.15 + 25
0.1 to 1100 V
0.3 + 0
0.1 to 110 V
0.5 + 0
1.0 + 0
Fluke, Model 80E-10
DC voltage
Range: 0 to 10,000 V
Meter accuracy: 3.0% of FS
Division ratio: 1000:1
10,000:1
Accuracy: 0.01%
of 5 V range not checked.
1Accuracy
EQUIPMENT REQUIREMENTS
4. Equipment Required. Table 2 identifies the specific equipment to be used in this
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-286, AN/GSM-287 and AN/GSM-705. Alternate items may be used
by the calibrating activity. The items selected must be verified to perform satisfactorily
prior to use and must bear evidence of current calibration. The equipment must meet or
exceed the minimum use specifications listed in table 2. The accuracies listed in table 2
provide a four-to-one ratio between the standard and TI. Where the four-to-one ration
cannot be met, the actual accuracy of the equipment selected is shown in parenthesis.