The Rotek Model 380A is a direct coupled current or transconductance amplifier which may be used with any Rotek Multifunction Calibrator or with any stable and accurate source of AC and DC current or voltage.
When used as a stand alone transconductance amplifier, the 380A has a sensitivity of 1 Ampere/Volt on the 10 Ampere range and 10 Ampere/Volt on the 100 Ampere range. Input resistance in the transconductance mode is 100kW.
The Model 380A may be used in conjunction with the Rotek Multifunction Calibrators, Model 5000A or Series 3900A.
When controlled remotely by a Rotek Calibrator, the Model 380A operates as a current amplifier with a gain of 1000 on the 10 Ampere range and a gain of 10000 on the 100 Ampere range.
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100 Amperes RMS or DC