The NI CSM-10A is an external 10 A current shunt that lets a DMM determine current from the voltage across a precision resistor.
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Key product information and technical features.
The CSM-10A connects externally to a DMM rather than occupying a chassis slot. Current enters HI and returns through LO; the meter reads the shunt voltage.
Verified product specifications.
| Maximum working current, HI to LO | 10 A |
|---|---|
| Sense resistance | 0.01 Ω |
| Accuracy, DC–25 kHz | ±0.5; typical at 25 °C, per revision D % |
| Sense resistor temperature coefficient | 20 ppm/°C |
| Burden voltage | 400 mV |
| Maximum working voltage, either input to earth | 250; Installation Category II V |
| Fuse | 12.5 A/250 V, 5 × 20 mm, quick-acting |
| Operating temperature | 0 to 55 °C |
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Manufacturer
Voltage readout
External current shunt
NI identifies the NI PCMCIA-4050, PXI/PCI-4060 and PXI-4070 in the installation guide.
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Product-specific answers based on available technical information.
Divide measured shunt voltage by 0.01 Ω. The specified conversion is 1 mV per 100 mA.
No. Include the voltmeter's mode and range accuracy error as well as the shunt error.