Keithley 3730 User Manual

3706 Multimeter / Switch System
Rev A 9/14/07
AC
Accuracy:
± (% of reading +
% of range
)
23
q
C
r
5
q
Function
Range
1
Resolution
Calibration
Cycle
3 Hz –
5Hz
5Hz –
10Hz
10Hz –
20kHz
20kHz –
50kHz
50kHz –
100kHz
100kHz –
300kHz
Voltage
2
100.0000mV
0.1PV
90 Day 1.0 + 0.03 0.30 + 0.03 0.05 + 0.03 0.11 + 0.05 0.6 + 0.08 4.0 + 0.5
1.000000V
1PV
(all ranges)
10.00000V
10PV
1 Year 1.0 + 0.03 0.30 + 0.03 0.06 + 0.03 0.12 + 0.05 0.6 + 0.08 4.0 + 0.5
100.0000V
100PV
(all ranges)
300.0000V 1mV
Temp. Coeff. /
q
C
3
0.010 + 0.003 0.030 + 0.003 0.005 + 0.003 0.006 + 0.005 0.01 + 0.006 0.03 + 0.01
3 Hz – 5Hz 5 Hz – 10Hz 10Hz –2kHz 2kHz –5kHz
5kHz –
10kHz
1.000000mA
8
1KA
1.0 + 0.04 0.30 + 0.04 0.08 + 0.03 0.09 + 0.03 0.09 + 0.03
10.00000mA
10KA
1.0 + 0.04
0.30 + 0.04 0.08 + 0.03 0.09 + 0.03 0.09 + 0.03
Current
2
100.0000mA
100KA
90 Day / 1 Year
1.0 + 0.04
0.30 + 0.04 0.08 + 0.03 0.09 + 0.03 0.09 + 0.03
1.000000A
1PA
(all ranges)
1.0 + 0.04
0.30 + 0.04 0.20 + 0.03 0. 88 + 0.04 2.0 + 0.04
3.000000A
10PA
1.0 + 0.04
0.30 + 0.04 0.20 + 0.03 0. 88 + 0.04 2.0 + 0.04
Temp. Coeff. /
q
C
3
0.10 + 0.004 0.030 + 0.004 0.005 + 0.003 0.006 + 0.005
0.006 +
0.005
Accuracy:
r
(ppm of reading
r
(ppm of reading
+ offset ppm)
(3Hz – 500kHz) (3Hz – 500kHz)
(333ms – 2
P
s)
Frequency
4
100.0000mV 0.333 ppm 80 +0.333 80 +0.333 (SLOW, 0.25s gate)
and Period to 3.33 ppm 90 Day / 1 Year 80 + 3.33 80 + 3.33 (MED, 100ms gate)
300.0000V 33.3 ppm (all ranges) 80 + 33.3 80 + 33.3 (FAST, 10ms gate)
Additional Uncertainty
r
(% of reading)
Detectorbandwidth
Low Frequency Uncertainty
3
(3Hz –300KHz SLOW)
30
(30Hz –300KHz MED)
300
(300Hz –300KHz FAST)
20Hz – 30Hz 0 0.3

30Hz – 50Hz 0 0

50Hz – 100Hz 0 0 4.0
100Hz – 200Hz 0 0 0.72
200Hz – 300Hz 0 0 0.18
300Hz – 500Hz 0 0 0.07
>500Hz 0 0 0
Crest Factor
5
Maximum Crest
Factor: 5 at full-
scale
Additional Uncertainty
r
(% of reading)
Detectorbandwidth
1 - 2 2- 3 3- 4 4 - 5
5Hz – 10Hz 3 0.50 1.20 1.30 1.40
10Hz – 30Hz 3 0.20 0.30 0.60 0.90
30Hz – 100Hz 3 or 30 0.20 0.30 0.60 0.90
>100Hz 3 or 30 0.05 0.15 0.30 0.40
300Hz – 500Hz 300 only 0.50 1.20 1.30 1.40
500Hz 300 only 0.05 0.15 0.30 0.40
AC MEASUREMENT CHARACTERISTICS
AC Volts
MEASUREMENT METHOD: AC-coupled, True RMS.
INPUT IMPEDANCE:
1M:r2% // by <150UF.
INPUT PROTECTION
: 300VDC or 300Vrms rear inputs or 37xx cards.
AC Current
MEASUREMENT METHOD: AC-coupled, True RMS.
INPUT PROTECTION:
3A, 250V fuse.
FREQUENCY and PERIOD
MEASUREMENT METHOD: Reciprocal Counting technique.
GATE TIME:
SLOW 0.25s, MED 100ms, and FAST 10ms (dmm.aperture=0.25, 0.1, or 0.01).
AC General
AC CMRR
6
: 70dB
VOLT HERTZ PRODUCT: ˺_GÝGXW
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G
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G
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Go¡UG
G
Range 3A 1A 100mA 10mA 1mA
Shunt
7
Resistance
0.1: 0.1: 1.0: 10: 100:
Burden
Voltage
Rear
panel
<1.8Vrms <0.6Vrms <0.4Vrms <150mVrms <125mVrms
Burden
Voltage
3721card
<2.4Vrms <1.0Vrms <0.6Vrms <200mVrms <130mVrms
AC Notes
1. 20 % overrange except 1% on 300V and 3.33% on 3A. Default resolution is 5-½ digits;
maximum useable resolution is 6-½ with 7-½ digits programmable.
2. Specification are for SLOW mode and sinewave inputs >5% of range. SLOW and MED are
multi-sample A/D conversions. FAST is dmm.detectorbandwidth=300 with dmm.nplc=1.0
.
3. Applies to 0qC - 18qC and 28qC - 50qC.
4. Specified for square wave inputs. Input signal must be >10% of ACV range. If input
is<20mV on the 100mV range then the frequency must be >10Hz. For sinewave inputs,
frequency must be >100Hz.
5. Applies to non-sinewave inputs 5Hz.
6. For 1kohm unbalance in LO lead.
7. Shunt resistance guaranteed by design.
8. For Model 3721, 1mA ACI, add 0.05% to “of reading” uncertainty from 250Hz o 10kHz.

Keithley 3730 Specifications

General

Brand	Keithley
Model	3730
Category	Multimeter
Language	English