Datasheet

Model 2450 Interactive SourceMeter
®
Instrument Specifications
Specifications are subject to change without notice
SPEC-2450 Rev. A / July 2013 3 of 7
RESISTANCE MEASUREMENT ACCURACY (LOCAL OR REMOTE SENSE)
1,2,3
Range Default
resolution
6
Default test current Normal accuracy
23 °C ± 5 °C 1 year
± (% reading + ohms)
Enhanced accuracy
7
23 °C ± 5 °C 1 year
± (% reading + ohms)
< 2.000000 Ω
8
1 µΩ User-defined Source I
ACC
+ Meas V
ACC
Meas I
ACC
+ Meas V
ACC
20.00000 Ω 10 µΩ 100 mA 0.098 % + 0.003 Ω 0.073 % + 0.001 Ω
200.0000 Ω 100 µΩ 10 mA 0.077 % + 0.03 Ω 0.053 % + 0.01 Ω
2.000000 kΩ 1 mΩ 1 mA 0.066 % + 0.3 Ω 0.045 % + 0.1 Ω
20.00000 kΩ 10 mΩ 100 µA 0.063 % + 3 Ω 0.043 % + 1 Ω
200.0000 kΩ 100 mΩ 10 µA 0.065 % + 30 Ω 0.046 % + 10 Ω
2.000000 MΩ 1 Ω 1 µA 0.11 % + 300 Ω 0.049 % + 100 Ω
20.00000 MΩ 10 Ω 1 µA 0.11 % + 1 kΩ 0.052 % + 500 Ω
200.0000 MΩ 100 Ω 100 nA 0.655 % + 10 kΩ 0.349 % + 5 kΩ
> 200.0000 MΩ
8
------ User-defined Source I
ACC
+ Meas V
ACC
Meas I
ACC
+ Meas V
ACC
Temperature coefficient: ± (0.15 × accuracy specification)/°C
0 °C to 18 °C and 28 °C to 50 °C
Source current, measure
resistance mode
Total uncertainty = I source accuracy + V measure accuracy (4-wire remote sense)
Source voltage, measure
resistance mode
Total uncertainty = V source accuracy + I measure accuracy (4-wire remote sense)
Guard output impedance
0.5 Ω (DC) in ohms mode
SUPPLEMENTAL SPECIFICATIONS
Overrange
105 % of range, source, and measure
Regulation Voltage
 Line: 0.01 % of range
 Load: 0.01 % of range + 100 µV
Current
 Line: 0.01 % of range
 Load: 0.01 % of range + 100 pA
Source limits Voltage source current limit:
 Bipolar current limit set with a single value
 Minimum value is 10 % of range
Current source voltage limit:
 Bipolar voltage limit set with a single value

Minimum value is 10 % of range
V-limit/I-limit accuracy
Add 0.3 % of setting and ±0.02 % of reading to base specification
6
6.5-digit measure resolution.
7
Source readback enabled; offset compensation on.
8
Source current, measure resistance or source voltage, measure resistance only.