2400 Series SourceMeter
®
User’s Manual Basic Source-Measure Operation 3-3
Operation overview
Source-measure capabilities
From the front panel, the SourceMeter can be configured to perform the following
operations:
• Source voltage — Display current and/or voltage measurement
• Source current — Display voltage and/or current measurement
• Measure resistance — Display voltage or current component of measurement
• Measure only (V or I) — Display voltage or current measurement
Voltage and Current — Table 3-1 lists the source and measure limits for the voltage and
current functions. Minimum source-measure levels are listed as follows:
V-Source: ±5µV
V-Measure: ±1µV
I-Source: ±50pA (2400 and 2410)
±500pA (2420, 2425, 2430, and 2440)
I-Measure: ±10pA (2400 and 2410)
±100pA (2420, 2425, 2430, and 2440)
Resistance — The Models 2400 and 2410 can make resistance measurements from
<100Ω to >200MΩ. The Models 2420, 2425, 2430, and 2440 can make resistance
measurements from <2Ω to >20MΩ. For the auto ohms measurement method, the
following ranges are available:
2400 and 2410 — 20Ω, 200Ω, 2kΩ, 20kΩ, 200kΩ, 2MΩ, 20MΩ, and 200MΩ
2420, 2425, 2430, and 2440 — 2Ω, 20Ω, 200Ω, 2kΩ, 20kΩ, 200kΩ, 2MΩ, and 20MΩ
When using the manual ohms measurement method, you cannot select ohms ranges. The
ohms reading is the mathematical result of V/I.
Measure only (V or I) — The SourceMeter can be used exclusively as a voltmeter
(V-Meter) or an ammeter (I-Meter). When used as a V-Meter only, the I-Source is set to
output 0A. When used as an I-meter only, the V-Source is set to output 0V.
Range of operation — The maximum power outputs are summarized as follows:
2400 — 22W (21V at 1.05A or 210V at 105mA)
2410 — 22W (21V at 1.05A or 1100V at 21mA)
2420 — 66W (63V at 1.05A or 21V at 3.15A)
2425 and 2430 — DC Mode: 110W (105V at 1.05A) or 66W (21V at 3.15A)
2430 — Pulse Mode: 1.1kW (105V at 10.5A)
2440 — 66W (42V at 1.05A or 10.5V at 5.25A)
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