Hioki CT9667 Series AC Flexible Current Sensors

Hioki CT9667 Series AC Flexible Current Sensors

Hioki current sensors are best-in-class devices for use with power meters, PQAs and Memory HiCorders.

The Hioki CT9667 series are flexible Rogowski type AC sensors comprising of 3 different models in various loop diameter sizes from 100 to 254 mm.

The 100mm and 180mm diameter sensor also feature extra thin cables for easier looping around complicated wiring. All 3 sensors 500A/5000A ranges, making them ideal for measuring large load current.

CAT IV 600 V, CAT III 1000 V

Model No. (Order Code)

CT9667-01 φ100 mm (3.94 in)
CT9667-02 φ180 mm (7.09 in)
CT9667-03 φ254 mm (10.00 in)

Note: These current sensors may also be used with HIOKI power quality analyzers, power meters or Memory HiCorders.

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

CT9667-01 CT9667-02 CT9667-03
Rated input current 5000 A AC/ 500 A AC
Max. allowable input 10000 A continuous (45 to 66 Hz, requires derating at frequency)
Bandwidth 10 Hz to 20 kHz (±3dB)
Amplitude and phase accuracy ±2 % rdg. ±0.3 % f.s. (45 to 66 Hz, at center of flexible loop)
Phase: ±1 deg (45 to 66 Hz)
Output voltage 500 mV AC/f.s. (0.1 mV AC/A) at 5000 A range
500 mV AC/f.s. (1 mV AC/A) at 500 A range
Max. rated voltage to earth 1000 V AC (CAT III), 600 V AC (CAT IV)
Core diameter φ 100 mm (3.94 in) φ 180 mm (7.09 in) φ 254 mm (10.00 in)
Output terminal BNC
Operating temperature -25 °C to +65 °C
(-13 °F to 149 °F)
-25 °C to +65 °C
(-13 °F to 149 °F)
-10 °C to +50 °C
(14 °F to 122 °F)
Power supply LR6 (AA) alkaline batteries ×2, Continuous use : 7 days (rated power 35 mVA), or AC adapter 9445-02/-03 (rated power 0.2 VA), or External power supply 5 to 15 V DC (rated power 0.2 VA)
Dust and water resistance Flexible loop only: IP54
* Do not use when wet.
N/A
Dimensions and mass Flexible loop cable diameter: φ7.4 mm (0.29 in),
Cable length: Between flexible loop and battery box: 2 m (6.56 ft),
Output cable: 1 m (3.28 ft), Battery box: 35 mm (1.38 in)W × 120.5 mm (4.74 in)H × 34 mm (1.34 in)D, 280 g (9.9 oz)
Flexible loop cable diameter: φ13 mm (0.51 in), Cable length: Between flexible loop and battery box: 2 m (6.56 ft), Output cable: 1 m (3.28 ft)
Battery box: 35 mm (1.38 in)W × 120.5 mm (4.74 in)H × 34 mm (1.34 in)D, 470 g (16.6 oz)
Accessories LR6 (AA) alkaline batteries ×2, Instruction manual ×1

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Key Features

  • Thinner cables are easy to use in confined spaces and with complicated wiring (-01, -02)
  • Shaped so that it’s easy to route through complex wiring
  • Easily supports large current measurements up to 5000 A
  • Wide 10 Hz to 20 kHz band with excellent frequency characteristics
  • Choose from three conductor diameter sizes
  • Combine with Hioki power meters or Memory HiCorders (with BNC input terminals)

Application Notes