Performance Verification
19
Test 3. Bandwidth (10 mV/A range)
13
Increase the generated frequency to 100 kHz.
14
Measure the current in the coil (
I
c
) and record in
Table 8
.
NOTE
The current in the coil must be
¡
10 mA. Increase the generated amplitude if
necessary to achieve a current of at least 10 mA.
15
Measure the voltage output (
V
PROBE
) by the probe on DMM 2 and
record in
Table 8 on page 19
.
16
Do the calculations specified in
Table 8
to determine if the probe
passes the test.
Table 7
AC Current Measurement Accuracy Record (10 mV/A range)
Measurement
Recorded Value
Current in Coil (
I
C
)
Probe Output Voltage (
V
PROBE
)
Calculate Maximum Probe Output Voltage As:
VP
ROBEMAX
= (I
C
* 10 * 10 mV/A * 1.04)
Calculate Minimum Probe Output Voltage As:
V
PROBEMIN
= (I
C
* 10 * 10 mV/A * 0.96)
Probe Passes Test if:
V
PROBEMIN
¤
V
PROBE
¤
V
PROBEMAX
Table 8
Bandwidth Record
(10 mV/A range)
Measurement
Recorded Value
Current in Coil (
I
C
)
Probe Output Voltage (
V
PROBE
)
Calculate Maximum Probe Output Voltage As:
V
PROBEMAX
= (I
C
* 10 * 10 mV/A * 1.04)
Calculate Minimum Probe Output Voltage As:
V
PROBEMIN
= (I
C
* 10 * 10 mV/A * 0.96) * 0.707
Probe Passes Test if:
V
PROBEMIN
¤
V
PROBE
¤
V
PROBEMAX
