Keithley Instruments, Inc.
28775 Aurora Road
Cleveland, Ohio 44139
1-888-KEITHLEY
www.keithley.com
Specifications are subject to change without notice.
SPEC-2611_2612 Rev. A / June 2006
Page 5 of 6
Models 2611/2612
System SourceMeter
®
Specifications
Current measurement accuracy
14,12
Range
Display resolution
13
Voltage burden
15
Accuracy (1 year)
23°C + 5°C
+ (% rdg.+amps)
100.000nA
1pA
<1mV
0.05% + 100pA
1.00000
ȝ
A
10pA
<1mV
0.025% + 500pA
10.0000
ȝ
A
100pA
<1mV
0.025% + 1.5nA
100.000
ȝ
A
1nA
<1mV
0.02% + 25nA
1.00000mA
10nA
<1mV
0.02% + 200nA
10.0000mA
100nA
<1mV
0.02% + 2.5
ȝ
A
100.000mA 1
ȝ
A
<1mV
0.02% + 20
ȝ
A
1.00000A 10
ȝ
A
<1mV
0.03% + 1.5mA
1.50000A 10
ȝ
A
<1mV
0.05% + 3.5mA
10.0000A
16
100
ȝ
A
<1mV
0.4% + 25mA
Temperature Coefficient (0°C–18°C and 28°C–50°C):
±(0.15 × accuracy specification)/°C.
Contact Check
17
Speed
Maximum measurement time to
memory for 60Hz (50Hz)
17
Accuracy (1 year)
23°C + 5°C
+ (% rdg.+ohms)
Fast
1 (1.2)ms
5% + 10
Medium
4 (5)ms
5% + 1
Slow
36 (42)ms
5% + 0.3
Additional Meter Specifications
Load impedance:
Stable into 10,000pF typical.
Common mode voltage:
250VDC.
Common mode isolation:
>1G
, <4500pF.
Over-range:
101% of source range, 102% of measure range.
Maximum sense lead resistance:
1k
for rated accuracy.
Sense input impedance:
>10G
.
14 De-rate accuracy by Vout/2E11 per °C when operating between 18°C–28°C. Derate accuracy by Vout/2E11 + (0.15 *
Vout/2E11) per °C when operating <18°C and >28°C.
15 Four-wire remote sense only.
16 10A range accessible only in pulse mode.
17 Includes measurement of SENSE HI to HI and SENSE LO to LO contact resistances.
