LEM IN 2000-SB IN Series Ultra-Stab Closed Loop Fluxgate Current Transducer
LEM IN 2000-SB Product Overview
The IN 2000-SB is a closed-loop Fluxgate current transducer from LEM's IN Series, designed for ultra-high precision measurement of DC, AC, and pulsed currents with galvanic isolation. This panel-mount transducer features an electrostatic shield between primary and secondary circuits and delivers exceptional accuracy for demanding calibration, medical, and high-precision industrial applications.
Rated for 2000 A nominal with a measuring range of ±2000 A, it outputs an instantaneous voltage signal of ±10 V with 0.0075% accuracy. Sensitivity is 200 mV/A. Linearity error is 15 ppm over temperature, with offset drift of 39 ppm and peak-to-peak noise of 9 ppm. Delay time to 90% output is 1 µs and small-signal bandwidth is 113 kHz (±1 dB). Supply voltage range is ±14.25 V to ±15.75 V. Mass is 4.2 kg and operating temperature ranges from -40°C to +85°C. Insulation test voltage is 6 kV RMS at 50 Hz for 1 minute, with 21 mm clearance and 22 mm creepage distance. The output interface is via a 9-pin D-Sub male connector, supporting flat or vertical panel mounting.
LEM IN 2000-SB Key Specifications
|
Parameter |
Value |
|
Rated current (IPN) |
2000 A |
|
Measuring range (IPM) |
±2000 A |
|
Output signal |
±10 V (instantaneous voltage) |
|
Sensitivity |
200 mV/A |
|
Supply voltage (VC) |
±14.25 V to ±15.75 V |
|
Accuracy |
0.0075 % |
|
Linearity error (εL) |
15 ppm (over temperature) |
|
Offset drift |
39 ppm |
|
Peak-to-peak noise |
9 ppm |
|
Delay time to 90% (tD90) |
1 µs |
|
Frequency bandwidth (±1 dB) |
113 kHz |
|
Insulation test voltage (Vd) |
6 kV RMS / 50 Hz / 1 min |
|
Clearance (dCl) |
21 mm |
|
Creepage distance (dCp) |
22 mm |
|
Operating temp (TA) |
-40°C to +85°C |
|
Mass (m) |
4.2 kg |
|
Mounting |
Panel (flat or vertical) |
|
Secondary connection |
9-pin D-Sub male |
|
Test winding |
200 turns |
|
Technology |
Closed-loop Fluxgate |
|
Standards |
IEC 61010-1 CAT III, PD2 |
LEM IN 2000-SB Key Advantages
The IN 2000-SB employs closed-loop Fluxgate technology (LEM patent), delivering 0.0075% accuracy while providing galvanic isolation with an electrostatic shield. Excellent linearity of 15 ppm over the wide -40°C to +85°C temperature range, very low offset drift of 39 ppm, and low noise level of 9 ppm peak-to-peak ensure measurement stability. The 200-turn test winding enables self-test functionality without primary current. Maximum withstand peak current is 10 kA for 100 ms pulses.
LEM IN 2000-SB Typical Applications
Feedback element in high performance gradient amplifiers for MRI
Feedback element in high-precision, high-stability power supplies
Calibration units and test benches in laboratories
Energy measurement and power analyzers
Medical equipment
High-accuracy industrial metrology
Calibration of current sources
Differential current measurement applications
Why Choose the LEM IN 2000-SB?
The IN 2000-SB combines a 2000 A rated current with 0.0075% accuracy and ±10 V voltage output in a robust panel-mount package. The closed-loop Fluxgate design provides exceptional accuracy and low temperature drift, while the 200-turn test winding and D-Sub output offer flexible system integration. The wide -40°C to +85°C operating temperature range ensures reliable performance in demanding environments. Ideal for MRI systems, calibration equipment, precision power supplies, and laboratory applications requiring absolute accuracy and long-term stability.
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