52120A Transconductance Amplifier

Model#:52120APart#:4044885
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  • 52120A Transconductance Amplifier
  • 52120A Transconductance Amplifier
  • 52120A Transconductance Amplifier
  • 52120A Transconductance Amplifier

Key features

  • Supply DC current up to 100 amps and AC current up to 120 amps, with accuracies to 140 ppm.
  • Generate 3,000 or 6,000 amps using accessory coils, up to 360 amps with three 52120As are connected in parallel.
  • Frequency: DC to 10 kHz, a burden voltage (compliance): 4.5 V @ 120 A, inductive drive capability: 1 mH load.
  • Allows for parallel operation with 2 or 3 amplifiers up to 360 A in a single phase, or up to 10 amplifiers and 1200 A in standalone mode.
  • GPIB remote operation

Product overview: 52120A Transconductance Amplifier

The 52120A is designed for users whose ability to address their calibration workload may be
limited by the output current, accuracy and drive capability of their present test equipment,
including:

  • Calibration professionals in a calibration/standards lab or an electrical utility
  • Manufacturers of power/energy instrumentation and meters, power quality analyzers or power converters
  • Users of electrical test and measurement equipment

The 52120A operates as a transconductance amplifier with:

  • 5522A/5502A/5520A/5500A Multi-Product Calibrators
  • 5730A*/5700A/5720A Multifunction Calibrator
  • 6105A*/6100B* Electrical Power Standard
  • 5080A Multi-Product Calibrator
  • 9100 Universal Calibration System
  • Any calibrator, signal generator or power supply capable of sourcing 2 V or 200 mA, dc or ac

*Special closed-loop operating mode

You may also operate your 52120A in closed-loop mode, seamlessly communicating with your Fluke Calibration 6105A or 6100B Electrical Power Standard to deliver enhanced 52120A accuracy.

Specifications: 52120A Transconductance Amplifier

Operating limits
Output ranges2 A, 20 A, 120 A (100 A dc)
Input current range200 mA, 200 mA, 120 mA (100 mA dc)
Current gain10, 100, 1000
Input voltage range2 V, 2 V, 1.2 V (1.0 V dc)
Transconductance1,10,100 Siemens
FrequencyTo 10 kHz
Maximum output compliance voltage4.5 Vrms (6.4 Vpeak)
Inductive drive capability:1 mH load
Output isolation, current terminal to earth600 Vrms, 850 Vpeak, dc to 850 Hz
Performance specifications
AC accuracy, closed loop with 6105ATo 140 ppm
DC accuracy, standaloneTo 160 ppm
AC accuracy, standaloneTo 350 ppm
Phase angle accuracy0.006°
Load dependent phase angle shift<0.001° @ 60 Hz
General specifications
Input line voltage range100 V to 240 V with up to ±10 % fluctuations
Transient overvoltageImpulse withstand (overvoltage); Category II of IEC 60364-4-443
Frequency47 Hz to 63 Hz
Maximum consumption< 1500 VA
Calibration DocumentationReport of calibration with data included; 17025 accredited report optional
Dimensions with feet (H x W x L)192 mm x 432 mm x 645 mm  (7.6 inches x 17 inches x 25.5 inches)
Dimensions without feet (H x W x L)178 mm x 432 mm x 645 mm  (7 inches x 17 inches x 25.5 inches)
Weight25 kg (54 lb.)
Design standards and complianceDesigned to EN 61010-1: 2010, CAN/CSA 22.2 No 61010.1-04, ANSI/UL 61010-1:2004, EN 61326-1:2006 CE marked, CSA listed
Operating temperature5 °C to 35 °C
Calibration temperature range16 °C to 30 °C
Warm up time1 hour
Safe operating max. relative humidity (non-condensing)<80 % 5 °C to 31 °C ramping linearly down to 50  % at 35 °C
Operating altitude0 m to 2,500 m
Shock and vibrationMIL-PRF-28800F class 3
Specification confidence level99%

Models: 52120A Transconductance Amplifier

52120A
Transconductance Amplifier
Part#: 4044885
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