Review on TestHelper TH77 Multimeter Calibrator Multifunctional by Jared Winebrenner

Name: TestHelper TH77 Multimeter Calibrator Multifunctional
Item: TestHelper TH77 Multimeter Calibrator Multifunctional
Rating: 1

September 29, 2022

Blown fuse in loop circuit simulating 4-20mA and such.

Fuse blown Loop powered circuit simulates 4-20 mA and all loop functions disabled. What's the point of having fuses that don't protect anything? Now the instrument only works as a regular multimeter with automatic switching.

Pros

Integrated HART loop resistor 250 Ω

Cons

Fading

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