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Review on TestHelper TH77 Multimeter Calibrator Multifunctional by Jared Winebrenner
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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