HP 3478A Technical Manual page 51

3478A 3478A
4-99. AC Currant 4-99. AC Currant Calibration and Calibration and Test (Optional)
4-100. 4-100. Since the Since the DC Current DC Current and AC Vo
has been performed and the AC Current Performance has been performed and the AC Current Performance
Test passed, the AC Current Calibration and Test need Test passed, the AC Current Calibration and Test need
not to be done. not to be done. If there is any If there is any doubt about th
of the AC Current Function, the function can be of the AC Current Function, the function can be
calibrated and checked using the Optional AC Current calibrated and checked using the Optional AC Current
Calibration and Test Procedures in the following Calibration and Test Procedures in the following
paragraphs. paragraphs. Refer Refer to to Table 4-1 Table 4-11 for the AC Current
Calibration Signals, Performance Test Signals, and Calibration Signals, Performance Test Signals, and
Performance Test Limits. Performance Test Limits.
shown in parenthesis in shown in parenthesis in the proced
are applied are applied
Table 4-11. Table 4-11. AC Current Ca AC Current Calibration and Test
4-101. 4-101. Equipment Required. Equipment Required.
required test equipment for the AC Current Calibration required test equipment for the AC Current Calibration
and Test. and Test.
AC Calibrator (Fluke Model 5200A Option 05) AC Calibrator (Fluke Model 5200A Option 05)
AC-DC Current Calibrator (Valhalla Model 2500) AC-DC Current Calibrator (Valhalla Model 2500)
4-102. 4-102. Calibration Calibration and and Test
following: following:
a. a. Reset the Reset the 3478A by 3478A by pressing the blue S
and then the SGL/TRIG and then the SGL/TRIG (TEST/RESET) button.
b. b. Make sure t Make sure the front he front panel CAL ENABL
set to the calibration enable position (the slot of the set to the calibration enable position (the slot of the
switch is in the vertical position). switch is in the vertical position).
c. c. (Step # (Step #1.) Set 1.) Set the 3
Function and the 3OOmA Range. Function and the 3OOmA Range.
d. d. Set the Set the multimeter to multimeter to the Single Trigger
pressing the SGL/TRIG button. pressing the SGL/TRIG button.
e. e. Set the AC Calibrator Set the AC Calibrator for a IV at 1KHz
f. f. Set the AC-DC Current Set the AC-DC Current Calibrator t
Range. Range.
g. g. Connect the Connect the AC-DC Current AC-DC Current Calibrator to
Calibrator as shown in Calibrator as shown in Figure 4-5. Figure 4-5.
h. h. Connect t Connect the 3478A he 3478A to the
shown in shown in Figure 4-5. Figure 4-5.
i. i. Press the Press the blue Shift blue Shift button an
(CAL) button. (CAL) button.
Test (Optional)
and AC Volts Calibration lts Calibration
doubt about the accuracy e accuracy
1 for the AC Current
Each step in Each st ep in the t the table is
the procedure. ure. All test sig All test signals
libration and Test
The following The following is is the
Test Procedure. Procedure.
pressing the blue Shift button hift button
(TEST/RESET) button.
panel CAL ENABLE Switch is E Switch is
the 3478A to 478A to the AC the AC Current
the Single Trigger Mode by
for a IV at 1KHz output. output.
Calibrator to the o the 100mA
Calibrator to the AC
to the AC-DC Calibrat AC-DC Calibrator as
button and then d then the LOCAL the LOCAL
j. j. Using the 3478A's Uprange Using the 3478A's Uprange and/or Downrange
buttons, adjust the reading on the multimeter until it buttons, adjust the reading on the multimeter until it
agrees with the output value of the AC-DC Current agrees with the output value of the AC-DC Current
Calibrator (if the output value is known). Calibrator (if the output value is known).
k. k. Press the Press the SGL/TRIG butto
l. l. This This completes
Performance Test is desired, continue with the next step. Performance Test is desired, continue with the next step.
Otherwise remove the 3478A and the AC Calibrator from Otherwise remove the 3478A and the AC Calibrator from
the AC-DC Current Calibrator. the AC-DC Current Calibrator.
able is
nals m. (Step #2.) m. (Step #2.) If a Performance Test
AC Calibrator for a IV at 5KHz output. AC Calibrator for a IV at 5KHz output.
n. n. Set th
Range. Check the r Range.
o. o. (Step #3.) Set (Step #3.) Set the AC-DC Current
100mA Range. 100mA Ra
p. p. (Step #4.) Set (Step #4.) Set the 3478A to the
q. q. Set the AC- Set the AC-DC Current Calibrator
the
Check the reading. Check the reading.
r. r. Remove the 34 Remove the 3478A and the AC Ca
AC-DC Current AC-DC
Current Calibration and Test. Current Calibration and Test.
4-103. 4-103. Ohms Calibrat
Do the Do the
4-104. 4-104. The 3478A's Ohms Funct
either the either the 2-Wire or 4-Wire Ohms Function.
calibrated in in both. calibrated
calibrated in calibrated in the function
3478A is to be calibrated in the 2-Wire Ohms Function, 3478A is to be calibrated in the 2-Wire Ohms Function,
connect the Standard Resistors to the 3478A's HI and connect the Standard Resistors to the 3478A's HI and
LO INPUT Terminals. LO INPUT Terminals. If the 3478A
the 4-Wire Ohms Function, connect the Standard the 4-Wire Ohms Function, connect the Standard
Resistors as shown in Figure 4-7. Resistors as shown in
Current
4-105. 4-105. Refer
Signals, Performance Test Signals, and Performance Signals, Performance Test Signals, and Performance
Test Test Limits. Limits.
Mode by
parenthesis in the procedure. parenthesis in th
to the INPUT Terminals. to the INPUT Terminals.
4-106. 4-106.
required test equipment for the Ohms Calibration and required test equipment for the Ohms Calibration and
100mA
Test. Test.
10 ohm 10 ohm
9330A/10) 9330A/10)
the AC
100 ohm 100 ohm
9330A/100 9330A/100
1K ohm 1K ohm
or as
9330A/IK) 9330A/IK)
10K ohm 10K ohm
9330A/10K) 9330A/10K)
100K ohm ± .001%; (Guildline Model 330/100K or 100K ohm ± .001%; (Guildline Model 330/100K or
4-18 4-18
SGL/TRIG button once.
completes the the AC AC Current
If a Performance Test is desired, set t
Set the AC-DC e AC-DC Current Current Calibrator t
Check the reading on the eading on the 3478A.
the AC-DC Current Calibrator to th
nge. Check the Check the reading. reading.
the 3478A to the 3A Range.
DC Current Calibrator to the IA Rang
78A and the AC Calibrator from the
Current Calibrator. Calibrator.
Ohms Calibration and ion and Test
The 3478A's Ohms Function can be calibra
2-Wire or 4-Wire Ohms Function. It cannot
both. Make Make sure
the function in which it in which it will be used.
If the 3478A is to be calibr
Figure 4-7.
Refer to to Table 4-12 Table 4-12 for the Ohms Calibration
Each step Each step in t in the
e procedure. All test signals are a
Equipment Equipment Required. Required.
.005%; (Guildline Model 9330/10 or .005%; (Guildline Model 9330/10 or
± ±
.005%; (Guildline Model 9330/100 or .005%; (Guildline Model 9330/100 or
± ±
.005%; (Guildline Model 9330/IK or .005%; (Guildline Model 9330/IK or
± ±
.001%; (Guildline Model 9330/10K or .001%; (Guildline Model 9330/10K or
± ±
TM 11-6625-3071-14 TM 11-6625-3071-14
and/or Downrange
n once.
Current Calibration. Calibration. If If a a
is desired, set the
Calibrator to the o the O1mA O1mA
3478A.
Calibrator to the e
3A Range.
to the IA Range. e.
librator from the
This completes This completes the the AC
Test
ion can be calibrated in ted in
It cannot be
sure the the multimeter multimeter is is
will be used. If the If the
is to be calibrated in ated in
for the Ohms Calibration
he table table is show is shown n in in
All test signals are applied pplied
The The following following is is the
he
AC
be
the