TB 9-6625-1493-35
2. Forms,
Records, and
Reports
a.
Forms, records, and
reports required for calibration personnel at all
levels are
prescribed by TB 750-25.
b. Adjustments to be reported are designated (R) at the end of the sentence in which
they appear. When adjustments are in tables, the (R) follows the designated adjustment.
Report only those adjustments made and designated with (R).
3. Calibration
Description. TI
parameters and
performance specifications which
pertain to this calibration are listed in table 1.
Test instrument parameters
Performance specifications
John 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
.053 + .0025
.075 + .005
.155 + .01
500 to 1100 V
0.1 + 0
0.1 + 0
.15 + .01
(% of input + V) at 13 to 35 oC (55 to 95 oF), relative humidity less than 70%
Transfer
Level
5 to 10 Hz
10 to 20
20 Hz to 5
5 to 10
10 to 20
20 to 50
50 to 100
Input voltage
Hz
kHz
kHz
kHz
kHz
kHz
1 mV to 1100 V
1.0 + 25
0.3 + 25
0.1 + 25
.15 + 25
0.1 to 1100 V
0.3 + 0
0.1 to 110 V
0.5 + 0
1.0 + 0
John Fluke, Models 80E-10 and 80E-10AN
DC voltage
Range: 0 to 10,000 V
Meter accuracy: 3.0% of FS
Division ratio: 1000:1
10,000:1
Accuracy: 0.01%
John Fluke, Model 831AR/AN
DC voltage
Range: 0.2 V to 50 mV
Accuracy:1 (0.75% of FS + 0.2 V)
With external voltmeter: (0.04% + voltmeter accuracy + 0.2 V)
1Accuracy
of 5 V range not checked.