High-precision current measuring clamp meter

High-precision DC current clamp meter. With an operating temperature range of -40 to 120°C and excellent environmental resistance, it outputs measurement values via CAN signals. It is ideal for measuring in actual vehicles.

The CW-402MKII is a high-precision current clamp meter for non-contact DC current measurement. It has a range of ±10A, ±30A, ±50A, and ±150A. With a compact and robust aluminum housing, it is an ideal sensor for use in real vehicle measurements and within temperature-controlled chambers, with an operating temperature range of -40°C to 120°C. It features a built-in temperature sensor that enables advanced temperature compensation and automatic residual magnetism correction, achieving high accuracy. The measured current values are transmitted internally via a CAN bus network. This allows for minimal signal degradation due to EMI and noise, enabling long-distance transmission of measurement values. When combined with a CAN-USB interface device and dedicated software, parameters such as output rate, CAN-ID, bit rate, and averaging of measurement values can be easily configured. Furthermore, multiple clamp sensors can be configured simultaneously, and a common DBC file can be exported.

basic information

Model: CW-401MKII Sensor Specifications Measurement Range: ±10A, ±30A, ±50A, ±150A Resolution: 1mA Accuracy: 1% (with an additional error of ±50mA depending on the measurement range) Output Rate: Up to 2kHz (configurable) Measurement Category: CAT I (measuring voltage up to 48V) Averaging: Configurable CAN I/F Specifications Type: ISO 11898-2 (High-speed) CAN Protocol 2.0A and 2.0B Bit Rate: High-speed up to 1Mbit/s Connector: 4-pin LEMO, compatible connection cables available upon request Power Supply Operating Voltage: 9VDC to 30VDC Current Consumption: 40mA @ 12VDC Operating Environment Operating Temperature Range: -40℃ to +120℃ Protection Rating: IP65 General Housing: Robust aluminum housing Dimensions (L×W×H), Weight: ~50A range 59mm×32mm×17.5mm, approximately 60g, 150A range 68mm×36mm×17.5mm, approximately 80g Factory Calibration: Standard -20℃ to +110℃, Wide -40℃ to +120℃ Features: Offset calibration via CAN bus, automatic residual magnetism correction