Description
Hioki CM7290 Display Unit for Flexible Current Measurement
The Hioki CM7290 Display Unit is a versatile solution designed to maximize the performance of Hioki CT7600 and CT7700 AC/DC Current Sensors. Acting as both a power supply and a signal processing hub, the CM7290 enables precise current measurement in the field while also supporting advanced data output to recording and logging equipment. This flexibility makes it ideal for engineers, maintenance professionals, and researchers who need reliable current measurement across a wide range of applications.
Standalone and Recorder-Based Use
When paired with a compatible CT7000 series current sensor, the CM7290 functions as a standalone clamp meter, allowing users to view real-time current values directly on its dual display. For more in-depth analysis, the unit can output measurement signals to Hioki Memory HiCorders, data loggers, or oscilloscopes. This dual capability supports both quick inspections and detailed long-term monitoring without changing measurement setups.
Multiple Output Modes
The CM7290 offers four distinct output formats to suit different measurement needs. WAVE mode outputs the current waveform as a proportional voltage signal, making it ideal for observing instantaneous current behavior such as motor start-up profiles. RMS mode converts waveforms into stable RMS values for monitoring fluctuating loads over time. PEAK mode continuously captures maximum current values, while FREQ mode outputs frequency information for rotating machinery and motor diagnostics. These modes ensure accurate data capture across dynamic electrical environments.
Long-Term and Stable Measurements
The CM7290 is fully compatible with Hioki’s AC/DC auto-zero current sensors, which are designed to minimize zero-point drift caused by temperature changes. This makes the system particularly effective for long-term DC current recording in applications such as solar power generation, inverter monitoring, and industrial equipment evaluation. Multiple power supply options including AC adapter, batteries, and external power further enhance flexibility during extended measurements.
Applications
Typical applications include solar panel current monitoring, motor and compressor testing, inverter performance evaluation, and industrial maintenance inspections. The CM7290’s ability to support 13 different current sensors allows users to scale their measurement system efficiently while maintaining consistent accuracy and usability.
Technical Specifications Table
| Specification | Details |
| Product Name | Hioki Display Unit CM7290 |
| Compatible Sensors | CT7600 and CT7700 series |
| Supported Current Range | 100 A to 2000 A (sensor dependent) |
| Output Modes | WAVE, RMS, PEAK, FREQ |
| Display | Dual display for current, frequency, output rate |
| Power Supply Options | AC adapter, AA alkaline batteries, external power |
| Standalone Operation | Requires CT7000 series sensor |
| Recorder Compatibility | Memory HiCorders, data loggers, oscilloscopes |
| Auto-Zero Support | Yes, with compatible sensors |
| Application Areas | Field inspections, long-term recording, waveform analysis |
| Model Number | CM7290 |
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