Consistent, High-precision Current Testing Across a
Wide Temperature Range

Hioki AC/DC clamp sensors are best-in-class current sensors
for use with power meters, Memory HiCorders and high
performance oscilloscopes. The CT6843 is DC to
500 kHz/200 A sensors, ideal for capturing signals
during the efficiency testing of batteries, inverters
and power conditioners.

Model No. (Order Code)

CT6843200 A AC/DC, PL23 terminal
CT6843-05200 A AC/DC, ME15W terminal

Note: These products cannot be used alone.
The optional SENSOR UNIT is required in order
to supply power and connect the clamp to a
Memory HiCorder or other instrument.
Products can be directly connected to the
compatible Power Meters and Power Analyzers.

Key Features

• Ideal for use in environmental testing with broad -40˚C to 85˚C temperature range
• High precision with a clamp-type design, ±0.3% amplitude accuracy, ±0.1° phase accuracy
• Wide-bandwidth DC to 500 kHz
• Single-handed operation and robust locking mechanism
• Reduced effects from magnetic fields, conductor position, and noise from nearby wires
• For EV/HEV battery charge and discharge efficiency measurement and inverter and power conditioner conversion efficiency evaluation

Germany iF Design Award
High-accuracy current sensors ideal for use with oscilloscopes and power meters

Compared to current sensors that use Hall elements, flux gate type current sensors are not prone to measurement error caused by variations in the external temperature. In addition, they can measure extremely low input (current values) and current waveforms with phase that lags by 90° with a high degree of precision. The CT6840 Series AC/DC Current Probes are ideal for measuring power waveforms with a digital oscilloscope and power meters.

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

Rated current200 A AC/DC
Max. allowable input400 A rms (requires derating)
Frequency characteristicsAmplitude: DC to 500 kHz
Phase: DC to 300 kHz
Amplitude and phase accuracyDC ±0.3 % rdg. ±0.02 % f.s. (Phase: Not defined)
DC< f ≤ 100 Hz ±0.3 % rdg. ±0.01 % f.s. (Phase: ±0.1°) Defined to 500 kHz
Power consumption6 VA max. (at 200 A/55 Hz, ±12 V power requirement)
Output voltage0.1 V/A (CT6841), 0.01 V/A (CT6843)
(voltage output with the Sensor Unit, use with a device having a 1 MΩ input resistance or higher)
Core diameterφ 20 mm (0.79 in)
Operating temperature, humidity-40 °C to +85 °C (-40 °F to 185 °F), 80% rh or less (with no condensation)
Power supply±11 V to ±15 V DC (Power suppled via the Sensor Unit, which supports 100 to 240 V AC)
Dimensions and mass153 mm (6.02 in)W × 67 mm (2.64 in)H × 25 mm (0.98 in)D, 370 g (13.1 oz), cord length: 3 m (9.84 ft)
AccessoriesInstruction manual ×1, Mark bands ×6, Carrying Case ×1

Compatible models...CT6843 (-05)

Compatible modelsCT6843CT6843-05
Power Analyzer PW6001, PW3390△ (Requires CT9900)OK
Power Analyzer 3390OK△ (Requires CT9901)
Power HiTester 3193 seriesOK△ (Requires CT9901)
Current Unit 8971△ (Requires the 9318)△ (Requires the 9318, CT9901)
F/V Unit 8940△ (Requires the 9318, 9705)△ (Requires the 9318, 9705, CT9901)
Catalog: AC/DC CURRENT PROBE CT6841, CT6843Download PDF  [3MB]English
Catalog: SENSOR UNIT CT9555, CT9556, CT9557Download PDF  [1MB]English

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