3.1
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NTR
0
D U CTI
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N
Fluke
Fluke
Valhalla
Fluke
Fluke
SECTION
3
PERFORMANCE VERIFICATION
343A
5200A
2500E
5450A
521 5A
This section contains information necessary to verify that the
Model
197’s
performance is within specified accuracy. Model
197
specifications may be found at the front of this manual.
Ideally, performance verification should be performed when
the instrument is first received to ensure that no damage
or
change in calibration has occurred during shipment. The
verification procedure may also be performed whenever in-
strument accuracy is suspect
or
following calibration. If per-
formance on any of the ranges
or
functions is inconsistent
with specifications, calibration should be performed as
described in Section
5.
DC Voltage Calibrator
AC Voltage Calibrator
AC-DC Current Calibrator
Resistance Calibrator
Power Amplifier
NOTE
If
the instrument does not meet specifications
and
it
is still under warranty (less than
12
months since date of shipment), contact your
Keithley representative
or
the factory to deter-
mine the action to be taken.
200mV, 2V, 20V, 200V,
1
OOOV ranges
f0.005%
200mV, 2V, 20V,
1
OOV 50Hz
to
1 OkHz
+0.05%
200pA, 2mA, 20mA, 200mA, 2000rnA, 1 OA ranges
50.03% DC,
+0.1%
AC to 5kHz (at full scale)
I
OOR,
1
ka,
1
OkR,
1
OOkn
ranges
+0.005%;
1
MR
range
+O.O1°/o;
10MQ
range 50.05°/o;
1
OOMQ
1
OOOV range:
1
OHz-30Hz
k0.12%;
50kHz-l OOkHz
-tO.IO%;
1
OOV max
@I
1
OOkHz
=
10’VHz; 750V
max
@
=.
13kHz
=
1
07VHz
&0.5%
3.2
E
N
V
I
R
0
N
M
E
NTA
L
C
0
N D IT
I0
N
S
All measurements should be made at an ambient temperature
between
18°C
and
28°C (65°F
to
82°F)
with a relative
humidity less than
80
%
.
3.3
RECOMMENDED TEST EQUIPMENT
Equipment for verifying the performance of the Model
197
is
listed in Table 3-1. Alternate equipment may be used as long
as equipment accuracy is at least equal to the specifications
listed in Table 3-1.
3.4
INITIAL CONDITIONS
Before performing the verification procedures, make sure the
Model
197
meets the following conditions:
1.
If
the instrument has been subjected to temperature below
18°C (65°F)
or
above
28°C (82”F),
allow sufficient time for
the instrument to reach temperatures within the range.
Generally,
it
takes one hour to stabilize an instrument that
is
10°C
(18°F) outside of this range.
2.
Turn on the Model
197
and allow
it
to warm up
for
one
hour. The instrument may be operated from either line
power of battery pack power, as long as the battery pack
has been fully charged as described in paragraph
2.3.3.
3.5
VERl FICATION PROCED U
RE
The following paragraphs give the basic verification pro-
cedure for the following functions
DC
volts, AC volts,
resistance and current
Table
3-1.
Equipment Specifications
I
Mfg
I
Model
I
Description
I
Specifications
3-1
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