AC/DC AUTO-ZERO CURRENT SENSOR CT7731

Accurate, Long-term Recording and Easy Output
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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 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.

Model No. (Order Code)

CT7731100 A AC/DC, φ33 mm (1.30 in)
CE

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.

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


Connect to Recorders, Data loggers, and Oscilloscopes

The CT7000 series cannot be used alone. Use with the Display Unit CM7290, CM7291 to connect with Data Loggers and Memory HiCorders.

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

Rated measurement current100 A AC/DC
Max. measurement current100 A
(requires derating at frequency)
Max. allowable peak input150 A peak
BandwidthDC 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 rate1 mV/A
Max. rated voltage to earthAC/DC 600 V (CAT IV)
Core diameterφ 33 mm (1.30 in) or less
Output connectorsHIOKI PL 14
Operating temperature range-25 °C to 65 °C (-13 °F to 149 °F)
Dimensions and mass58 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)
AccessoriesNone
Catalog: AC/DC CURRENT SENSOR CT7000 Series, DISPLAY UNIT CM7290, CM7291Download PDF  [4MB]English

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