1000 A AC/DC High-Precision Current Probe for Power Efficiency Testing
AC/DC CURRENT PROBE CT6846
Description
Hioki AC/DC clamp sensors are best-in-class current sensors for use with power meters, Memory HiCorders and high performance oscilloscopes. The CT6846 is a high-precision 1000 A AC/DC current probe that features a wide operating temperature range and large jaw diameter, making them ideal for evaluating the operational integrity of devices that are subject to extreme temperature ranges.
A Comment From the Good Design Award 2016
“The ergonomic design of these products appropriately reflects conditions in the field as well as worker needs through features such as one-handed operation and a grip that can be easily opened and closed in any orientation. In addition, they exhibit a high level of overall finish, including through the effective use of visual cues, for example use of yellow and gray to prompt the user to interact with the instrument in a way that avoids its inherent hazards.”
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
• 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 testing and inverter and power conditioner conversion efficiency evaluations
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 current | 1000 A AC/DC |
|---|---|
| Max. allowable input | 1700 A DC (requires derating) |
| Frequency characteristics | DC to 20 kHz Phase: DC to 20 kHz |
| Amplitude and phase accuracy | DC ±0.3 % rdg. ±0.02 % f.s. (Phase: Not defined) DC < f="" ≤="" 100="" hz="" ±0.3="" %="" rdg.="" ±0.01="" %="" f.s.="" (phase:=""> Defined to 20 kHz |
| Output voltage | 2 mV/A (voltage output with the Sensor Uni use with a device having a 1 MΩ input resistance or higher) |
| Core diameter | φ 50 mm (1.97 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) |
| Power consumption | 7 VA max. (at 1000 A/55 Hz, ±12 V power requirement) |
| Dimensions and mass | 238 mm (9.37 in)W × 116 mm (4.57 in)H × 35 mm (1.38 in)D, 990 g (34.9 oz), cord length: 3 m (9.84 ft) |
| Accessories | Instruction manual ×1, Mark bands ×6, Carrying Case |
Compatible models...CT6846 (-05)
| Compatible models | CT6846 | CT6846-05 |
|---|---|---|
| Power Analyzer PW6001, PW3390 | △ (Requires CT9900, CT ratio 2) | OK |
| Power Analyzer 3390 | OK (CT ratio 2) | △ (Requires CT9901, CT ratio 2) |
| Power HiTester 3193 series | OK (CT ratio 2) | △ (Requires CT9901, CT ratio 2) |
| Current Unit 8971 | △ (Requires the 9318, CT ratio 2) | △ (Requires the 9318, CT9901, CT ratio 2) |
| F/V Unit 8940 | △ (Requires the 9318, the 9705, CT ratio 2) | △ (Requires the 9318, the 9705, CT9901, CT ratio 2) |
Options
Current sensors for the F/V Unit 8940
*To connect the current sensor via the conversion cable for the F/V Unit 8940, or using with the Power supply unit 9555-10.
CONVERSION CABLE 9705
0.2 m (0.66 ft) length, to connect the CT6841-6846, CT6863/6865, 9709, 9272-10 to the F/V Unit 8940, Cannot be used in combination with the CT6862
Option A
The CT9901 is for connecting the PW9100 to the 3390
CONVERSION CABLE CT9901
ME15W (12 pin) to PL23 (10 pin) connector
Option B
Only 1 unit of CT9902 can be used at any one time.
EXTENSION CABLE CT9902
5 m (16.41 ft) length, ME15W (12 pin) - ME15W (12 pin) connector
Options B
The CT9903 connects up to 2 cables in series, Cannot be used in combination with the 9277 to 9279
EXTENSION CABLE CT9903
5 m (16.41 ft) length, PL23 (10 pin) - PL23 (10 pin) connector
Other options for Input
CONNECTION CORD L9217
Cord has insulated BNC connectors at both ends, 1.6 m (5.25 ft) length
CONVERSION CABLE 9318
To connect the CT6841-6846, CT6865/63/62, 9709, 9272-10 to the 8971/40/51, 38 cm (14.96 in) length
CONNECTION CORD 9165
Cord has metallic BNC connectors at both ends, use at metallic terminal, 1.5 m (4.92 ft) length
PL23 (10-pin) - ME15W (12-pin) conversion
CONVERSION CABLE CT9900
Convert PL23 (10-pin) terminal to ME15W (12-pin) terminal
POWER SUPPLY for Current Sensors
*A separate power supply (CT955x) is required in order to use a high-precision current sensor.
SENSOR UNIT CT9557
• Power supply for current sensors when used alone • 4ch, with Waveform/Total Waveform/Total RMS output
SENSOR UNIT CT9556
• Power supply for current sensors when used alone • 1ch, with Waveform/RMS output
SENSOR UNIT CT9555
• Power supply for current sensors when used alone • 1ch, with Waveform output
Evaluation of Input and Output Characteristics of Power Conditioners 
Comprehensive Evaluation of Inverter Motors
Testing System Interconnection Protection Function of Power Conditioners
Synchronized Input and Output Measurement of Three-Phase Inverters
Evaluate the Efficiency of a DC-DC Converter
There are no drivers, firmware or software available for this product.
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Raising the Bar for High-Accuracy Measurement