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Hioki CT7742 AC/DC Auto-Zero Current Sensor

Hioki CT7742 AC/DC Auto-Zero Current Sensor

Price on request

  • AC/DC Auto-Zero Current Sensor
  • DC to 5kHz (-3dB)
  • 2000A AC/DC
  • +/-2.3 deg. phase accuracy
  • 55 mm core diameter
  • 2.5m cord lenght
  • PL14 terminal
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Hioki CT7742 AC/DC Auto-Zero Current Sensor

Hioki clamp on meters are best-in-class measuring devices incorporating Hioki’s expertise in current sensing technology. The CT7742 is a 2000 A AC/DC Current Sensor that pairs with the detachable Display Unit CM7290 for convenient field testing, while delivering an extended temperature range and auto-zero adjustment to minimize drift due to wide temperature changes that occur during long-term testing.  Further extend the functionality of this system by connecting the Display Unit with a Hioki memory recorder or logger.

CAT IV 600 V

Key Features

  • Accurately measure and record even when the temperature changes
  • Ideal for site inspections by using detachable Display Unit
  • Four output formats to output data to loggers or other devices (via Display Unit): WAVE, RMS, PEAK, Hz

Basic specifications

Accuracy guaranteed: 3 years
Rated measurement current 2000 A AC/DC
Max. measurement current 2000 A
(requires derating at frequency)
Max. allowable peak input 2840 A peak
Bandwidth DC to 5 kHz (-3dB)
(When used in combination with CM7290 or CM7291: DC 3 Hz to 1 kHz)
Typical phase accuracy ±2.3 deg. (DC < f ≤ 66 Hz)
Output rate 0.1 mV/A
Max. rated voltage to earth AC/DC 600 V (CAT IV)
AC/DC 1000 V (CAT III)
Core diameter φ 55 mm (2.17 in) or less
Output connectors HIOKI PL 14
Operating temperature range -25 °C to 65 °C (-13 °F to 149 °F)
Dimensions and mass 64 mm (2.52 in)W × 195 mm (7.68 in)H × 34 mm (1.34 in)D, 510 g (18.0 oz), Cable length 2.5 m (8.20 ft)
Included accessories None

Connect to Recorders, Data loggers, and Oscilloscopes

Must be paired with the Display Unit CM7290 or CM7291 to operate as a standalone unit. Add an output cord to deliver signals to a data logger or Memory HiCorder for the following types of output:

  • A DC or AC (up to 5 kHz/10 kHz) current waveform as-is (using WAVE mode for waveform output)
  • An analog signal generated by converting the input waveform to a series of RMS values (using RMS mode for RMS output)
  • An analog signal generated by detecting the current waveform’s peak value (using PEAK mode for peak output
  • An analog waveform generated by detecting the frequency of the current waveform (using FREQ mode for frequency output)

Hioki CT7631

Broad temperature range

A wide operating temperature range of -25°C to 65°C (-13°F to 149°F)lets you use the sensor even in sub-freezing temperatures and on hot summer days.

Hioki CT7631

Take measurements without shifts in the zero-point, even during extended recording with temperature variations

Because temperature variations cause the zero-point to shift when using a conventional DC current sensor to measure DC current, it is necessary to perform zero-adjustment periodically when recording data over an extended period of time with such a sensor. This shortcoming is caused by the effects of the Hall element that conventional DC current sensors use to to detect current. Hioki’s new auto-zero current sensors incorporate a new switching-based offset cancellation circuit developed to address this problem. The new design minimizes zero-point shift, making it possible to record DC current values over an extended period of time without the need for periodic zero-adjustment.

Hioki CT7731

Transfer data wirelessly using Bluetooth(R) to GENNECT Cross mobile app

Pair with the CM7291 Display Unit to send measurement data to a smartphone or tablet using Bluetooth® wireless technology. Use the GENNECT Cross dedicated app to display and review measured values and waveforms in real time.

Hioki CT7631

For more information: Hioki

Hioki CT7742 Current Sensor

Hioki CT7742 Datasheet

Additional information




Oscilloscope Probes

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