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General| Brand | Kusam-meco |
|---|---|
| Model | KM 857 |
| Category | Multimeter |
| Language | English |
Details meter protection ratings per IEC61010-1, UL61010-1, CAN/CSA C22.2 standards.
Outlines overload protection for KM857 and KM859CF models.
Defines accuracy, crest factor, True RMS, and AC bandwidth.
Accuracy for AC, AC+DC, and DC voltage, plus frequency ranges.
Accuracy for resistance, continuity, and diode test functions.
Accuracy for capacitance, dual temperature, and DC/AC current measurements.
Lists DC voltage measurement accuracy specifications.
Emphasizes safety checks before measuring hazardous voltages.
Guides on operating AC, DC, DC+AC voltage and Hz Line Level functions.
Stresses the importance of discharging capacitors before taking measurements.
Describes the %4-20mA function for measuring loop current as a percentage.
Explains how to use the MAX/MIN recording mode to capture extreme values.
Details the CREST capture mode for holding instantaneous peak values.
Safety warning before opening the meter for maintenance or fuse replacement.
Recommends calibration intervals and explains diagnostic messages.
Offers guidance on resolving operational problems and potential component failures.
