Description
Hioki CM4373-90 Clamp Meter for Reliable High-Current Measurement
The Hioki CM4373-90 AC/DC Clamp Meter is designed for engineers and technicians who need high-accuracy current measurement in rugged environments. It offers True RMS readings up to 2000 A, ensuring dependable results across complex electrical systems. Equipped with a Wireless Adapter Z3210, it enables effortless Bluetooth® communication, allowing users to log, analyze, and share data directly through the GENNECT Cross mobile app or export it to Excel® templates for streamlined reporting.
This clamp meter excels in solar PV system inspection, EV maintenance, and industrial power diagnostics. With the optional DC High Voltage Probe P2010, it safely measures up to 2000 V DC, meeting the needs of high-voltage installations while ensuring operator safety with CAT IV 600 V and CAT III 1000 V ratings.
The CM4373-90 simplifies tasks with an automatic hold function, stabilizing readings for repeated measurements, and an auto AC/DC detection mode that boosts field efficiency. Its rugged IP54 enclosure and reinforced jaw structure make it ideal for challenging work conditions, ensuring reliability even in harsh environments.
For professionals analyzing transient currents, it captures inrush RMS and crest values accurately, making it valuable for motor startups and welding applications. Additionally, when connected via GENNECT Cross, it performs harmonic analysis up to the 30th order, helping identify potential system inefficiencies and equipment stress caused by distorted waveforms.
The Hioki CM4373-90 combines power, safety, and innovation into one portable tool, setting a new standard in precision clamp measurement technology.
Technical Specifications
| Specification | Details |
| Model | Hioki CM4373-90 |
| Current Measurement Range | 600 A / 2000 A AC/DC (True RMS) |
| Voltage Range | 600 mV – 1000 V (up to 2000 V with P2010 probe) |
| Safety Rating | CAT IV 600 V, CAT III 1000 V |
| Wireless Function | Bluetooth® via Z3210 adapter |
| Harmonic Analysis | Up to 30th order using GENNECT Cross |
| Resistance Range | 600 Ω – 6.000 MΩ |
| Capacitance Range | 1.000 μF – 1000 μF |
| Temperature Range | -40.0°C to 400.0°C |
| Protection Rating | IP54 (storage), IP20 (measurement) |
| Jaw Diameter | 55 mm (2.17 in) |
| Power Supply | 2 × LR03 Alkaline Batteries |
| Dimensions | 65 × 250 × 35 mm |
| Weight | 530 g (18.7 oz) |
| Included Accessories | Test Lead L9300, Carrying Case C0203, Batteries, Manuals |
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