HP 3478A Technical Manual page 52

3478A 3478A
Table 4-12. Ohms Calibration Table 4-12. Ohms Calibration and Test
9330A/100K) 9330A/100K)
1M ohm 1M ohm ± .002%; (Guildline Model 9330/iM) ± .002%; (Guildline Model 9330/iM)
10M ohm + .01%; (Guildline Model 9330/O1M) 10M ohm + .01%; (Guildline Model 9330/O1M)
4-106. 4-106. 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 (TEST/RESET) button. and then the SGL/TRIG
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 #1.) Se (Step #1.) Set the 3478A t the 3478A to the Ohms Funct
the 300 Range. the 300 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. Short th Short the 3478A's e 3478A's HI and
the 4-Wire Ohms Function is to be calibrated, short the the 4-Wire Ohms Function is to be calibrated, short the
terminals as shown in Figure 4-6. terminals as shown in Figure 4-6.
f. f. Press the Press the blue Shift blue Shift button
(CAL) button. (CAL) button.
g. g. Press the Press the SGL/TRIG butt SGL/TRIG button once.
and Test
Test Procedure. Procedure.
pressing the blue Shift button hift button
(TEST/RESET) button.
panel CAL ENABLE Switch is E Switch is
to the Ohms Function and
the Single Trigger Mode by
HI and LO INPUT Terminals. I LO INPUT Terminals. If f
button and then and then the LOCAL the LOCAL
on once.
h. h.
Resistor to the Resistor
Ohms Function is to be calibrated, connect the resistor Ohms Function is to be calibrated, connect the resistor
as shown in Figure 4-7. as shown in
i. i. Press the Press the blue Shift
(CAL) button. (CAL) button.
j. j. Press the SGL/TRIG bu Press the SGL/TRIG button once.
k. k. (Step #3 and 4.) Se (Step #3 and 4.) Set the 3478A to th
and calibrate the range using zero and full scale (or 1/3 and calibrate the range using zero and full scale (or 1/3
scale) inputs. s. scale) input
through i, except use a 3000 (or 100() resistor instead of through i, except use a 3000 (or 100() resistor instead of
a 30(0 (or 100) resistor. a 30(0 (or 100)
l. l. (Step #5 (Step #5 and 6.) Set
and calibrate the range using zero and full scale (or 1/3 and calibrate the range using zero and full scale (or 1/3
scale) inputs. s. scale) input
through i, except use a 3K( (or IKO) resistor instead of a through i, except use a 3K( (or IKO) resistor instead of a
30Q (or 100) resistor. 30Q (or 100) resistor.
m. (Step #7 and 8.) m. (Step #7 and 8.) Set the 3478A to
and calibrate the range using zero and full scale (or 1/3 and calibrate the range using zero and full scale (or 1/3
scale) inputs. s. scale) input
through i, except use a 30K( (or through i, except use a 30K( (or 10Kfl) resistor instead of
a 30(2 (or 100) a 30(2 (or 100) resistor.
n. n. (Step #
Do the Do the
Range and calibrate tie range using zero and full scale Range and calibrate tie range using zero and full scale
(or 1/3 scale) inputs. (or 1/3 scale)
d through i, except use a 300KQ) (or .100K) resistor d through i, except use a 300KQ) (or .100K) resistor
instead of a 30(l (or 10() resistor. instead of a 30(l (or 10() resistor.
o. o. (Step #11 and 12.) Set (Step #11 and 12.) Set the 3478A to the 3M
and calibrate the range using zero and full scale (or 1/3 and calibrate the range using zero and full scale (or 1/3
scale) inputs. s. scale) input
through i, except use a 3Mn (or IMD) resistor instead of a through i, except use a 3Mn (or IMD) resistor instead of a
300 (or 10(2) resistor. 300 (or 10(2) resistor.
ion and
p. p. (Step #13
Range and calibrate the range using zero and full scale Range and calibrate the range using zero and full scale
Mode by
(or 1/3 scale) (or 1/3 scale) inputs.
d through i, except use a 30M2 (or 10M2) resistor d through i, except use a 30M2 (or 10M2) resistor
instead of a 300 (or 10() resistor. instead of a 300 (or 10() resistor.
q. q. Since the performance Since the performance checks are the same as
calibration points, the che calibration point
CAL EN CAL ENABLE swit
completes the Ohms Calibration and Test. completes the Ohms Calibration and Test.
4-19/(4-20 blank) 4-19/(4-20 blank)
(Step #2.) Con (Step #2.) Connect the nect the 302 or
to the 3478A's INPUT 3478A's INPUT Terminal.
Figure 4-7.
blue Shift button and button and then the
tton once.
t the 3478A to the 300(2 Range
Use the same procedur Use the same procedures in
resistor.
and 6.) Set the 3478A to the 3478A to the 3Kn Range
Use the Use the same procedur same procedures in
Set the 3478A to the 30K( Range
Use the same procedur Use the same procedures in
resistor.
(Step #9 and 10 9 and 10.) Set .) Set the 3478A
inputs. Use the same pro Use the same procedures in steps
the 3478A to the 3M( Range
Use the same procedur Use the same procedures in
(Step #13 and 14.) and 14.) Set the 3478A Set the 3478A to the 30M
inputs. Use the same pro Use the same procedures in steps
checks are the same as the
s, the checks are not requ cks are not required.
ABLE switch to ch to the the horizontal
TM 11-6625-3071-14 TM 11-6625-3071-14
302 or 10() St 10() Standard andard
Terminal. If the If the 4-Wire 4-Wire
then the LOCAL LOCAL
e 300(2 Range
es in steps d steps d
the 3Kn Range
es in steps d steps d
the 30K( Range
es in steps d steps d
10Kfl) resistor instead of
the 3478A to the to the 300K9 300K9
cedures in steps
( Range
es in steps d steps d
to the 30M() ()
cedures in steps
the
ired. Set the Set the
horizontal position. position. This This