Accurate Technologies
Accurate Technologies

CANWAY Current Clamp Meters


CANWAY Current Clamp Meter with CAN-Interface

CW-401 MkII is a high-precision current clamp meter for contactless current measurement in the measuring ranges from ±10 A to ±1000 A. The high-quality and robust case - with very small dimensions - makes it ideal suited for measurements in rugged environments and hard-to-reach places, e.g. in the engine compartment.

Even at high ambient temperatures, up to +120 °C, the CW-401 has an outstanding accuracy due to an intelligent temperature compensation. This is achieved by digital signal processing of its integrated logic. Current measurements are transmitted comfortably via CAN-bus. Though this bus system, measurements can be sent over long distances without any signal degradation due to EMI or noise.
CANWAY Current Clamp
In combination with the CW-101 CAN-USB-interface device, the current clamp can be simply configured by the intuitive configuration software. Parameters as output rate, CAN-ID, bitrate and Bus data rate are configured easily. Moreover, several clamps can be configured simultaneously and a common DBCFile
can be exported - e.g. for using in measuring chain.
Product Features:
  • Measuring ranges ±10 A to ±1000 A
  • High accuracy 1%
  • Extended temperature range
  • Temperature compensation, sensor position- and remanence correction
  • Output of the measuring values via CAN-bus
  • Robust case
  • Small form factor, for application to hard-to-reach measuring points
  • Factory calibration
  • Intuitive configuration software
Current Measurement
CAN Interface
Operating Conditions
General Information
Current Measurement

Current Measurement

 Measuring ranges ±10 A, ±30 A, ±50 A, ±150 A, ±350 A , ±500 A , ±750 A and ±1000 A
 Resolution 1 mA
 Accuracy1 % relative to measuring range (up to ±50 A additionally ±50 mA)
 Output rate Max. 2 kHz, configurable
 Measurement category CAT I (measuring voltage up to 48 V)
CAT III (in preparation)
 DSP-filterCut-off frequency depending on output rate
CAN Interface

CAN Interface

ISO 11898-2 (high-speed)
CAN protocol versions 2.0 A and 2.0 B
 Bitrate High speed up to 1 Mbit/s
 Connectors4 pin LEMO, connection cables available on request
Operating Conditions

Operating Conditions

 Supply voltage 9 VDC to 30 VDC
 Current consumption 40 mA at 12 VDC
 Temperature range up to 150 A: -40 °C to +120 °C
from 350 A: -40 °C to +110 °C
 Protection class IP65
General Information

General Information

up to ±150 A: Robust aluminium case
from ±350 A: Robust polyamid case
 Dimensions (LxWxH)up to ±50 A: 59 mm x 32 mm x 17,5 mm
         ±150 A: 68 mm x 36 mm x 17,5 mm
from ±350 A: 90 mm x 55 mm x 22 mm
up to ±50 A: 6 mm
         ±150 A: 11 mm
from ±350 A: 18 mm
 Weight up to ±50 A: approx. 60 g; ±150 A: approx.: 80 g; from ±350 A: approx. 110 g
 Factory calibration Standard: -20 °C to +110 °C
Extended: -40 °C to +120 °C
DakkS calibration on request
 Features Offset calibration over CAN-bus
Automatic remanence correction
Integrated temperature measurement
Intuitive software configuration
CANWAY Plugin for IPEmotion
All specifications are subject to change without notice.
*This product is not available in all regions.