Yokogawa CA450 Processing Multimeter


CA450 Process Multimeter / Calibrator
Loop Power and 4 to 20 mA Output function in a DMM

From daily inspection to troubleshooting of measurement instruments— all in a single unit! ideal for checking the operation of field devices and maintenance of electrical equipment

The Yokogawa CA450 Process Multimeter is a portable test instrument to combine a digital RMS multimeter and a loop calibrator to give process technicians the same functionality in one tool. The Yokogawa CA450 provides 24-Volt loop power, reducing the need for carrying a separate power supply when performing transmitter testing. And with its built-in, selectable 250-Ohm Hart resistor, it also eliminates the need for a separate resistor. Process technicians can now do the same job while carrying less equipment


  • Operating check, adjustment for valve and positioner
  • 4–20 mA step/Auto-step/sweep output applications
  • AC/DC current measurement (sensor mode)
  • 2-wire transmitter loop check (mA LOOP POWER) and simulator (20 mA SINK)
  • Power supply peak-to-peak measurement
  • Panel meter inspection
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