AC/DC AUTO-ZERO CURRENT
SENSOR
CT7731

Accurate, Long-term Recording and Easy Output
Settings
Exclusive Academic Offer

Hioki clamp on meters are best-in-class measuring devices incorporating Hioki’s expertise in current sensing technology. The CT7731 is a 100 A AC/DC Current Sensor that pairs with the detachable Display Unit CM7290 or CM7291 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

Model No. (Order Code)

CT7731 100 A AC/DC, φ33 mm (1.30 in)

Note: CT7700 series cannot be used alone. Use with the Display Unit CM7290, CM7291 to connect with Data Loggers and Memory HiCorders. When used in combination with CM7290 or CM7291, the frequency band of current display and waveform output becomes narrow.

CE

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)

Basic specifications (Accuracy guaranteed for 3 years, Post-adjustment accuracy guaranteed for 3 years)

Rated measurement current 100 A AC/DC
Max. measurement current 100 A
(requires derating at frequency)
Max. allowable peak input 150 A peak
Bandwidth DC to 5 kHz (-3dB)
(When used in combination with CM7290 or CM7291: DC 3 Hz to 1 kHz)
Typical accuracy ±1.8 deg. (DC < f ≤ 66 Hz)
Output rate 1 mV/A
Max. rated voltage to earth AC/DC 600 V (CAT IV)
Core diameter φ 33 mm (1.30 in) or less
Output connectors HIOKI PL 14
Operating temperature range -25 °C to 65 °C (-13 °F to 149 °F)
Dimensions and mass 58 mm (2.28 in)W × 132 mm (5.20 in)H × 18mm (0.71 in)D, 250 g (8.8 oz),
Cable length 2.5 m (8.20 ft)
Accessories None

 

Catalog: AC/DC CURRENT SENSOR CT7000 Series, DISPLAY UNIT CM7290, CM7291 Download PDF  [4MB] English

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