ET321 · Measurements with the Multimeter

Experimental Platform for Electrical Measurements with the Multimeter

A course package pairing a professional-grade digital multimeter with an experiment card and guided exercises that build correct, safe electrical measurement practice - from range selection to the diagnosis of unknown components.

Experiments

Controls and operation of the digital multimeter
Identifying potential hazards in measurements on electrical circuits
Measuring DC and AC voltages
Measuring DC and AC currents - correct series connection
Measuring resistance, continuity and diode testing
Measurements using contact and balance methods
Matching the measuring range and identifying common measurement errors
Identifying unknown components in a circuit by voltage and current measurement

Description

The platform builds correct multimeter practice from the ground up. An experiment card provides circuits for measuring current, voltage and resistance, plus a dedicated diagnosis circuit with unknown components that students identify through systematic voltage and current measurements. The included instrument is a real professional-grade digital multimeter - not a simulation - with a 3¾-digit backlit bar-graph display and CAT II 1000 V safety rating. An infrared interface couples the multimeter into the training system, so its readings appear alongside the virtual instruments of the ET300 base system and can be logged and evaluated in the courseware.

Courseware

The interactive multimedia course - at least 3 hours of directed instruction - covers instrument controls, measurement safety, range selection, contact and balance measurement methods, and the interpretation of measurement errors and accuracy. Exercises are evaluated automatically, and the course is available with Romanian-language support.

Scope of Delivery

Multimeter-measurements experiment card
Circuit for the diagnosis of unknown components
Physical digital multimeter (professional, CAT II 1000 V)
Touch-safe connectors, connection cables and test leads
Storage case
Interactive course software

Specifications

Experiment card circuits for current, voltage and resistance measurement

Diagnosis circuit unknown components identified by systematic V and I measurement

Course duration min. 3 hours of guided instruction, with self-assessment

Base system requires ET300 (interface + experimenter) - not included

Included Multimeter

Display 3¾ digits, resolution ±3100 digits, bar graph, backlit

DC voltage 30 mV…1000 V

AC voltage 3 V…1000 V, TrueRMS

DC current 3 mA…16 A

AC current 30 mA…10 A

Resistance 30 Ω…30 MΩ, continuity and diode test

Temperature via optional PT100/PT1000 probe

Safety category CAT II 1000 V, fused current range

Functions auto-ranging, auto power-off, min/max, data hold

System link IR interface - readings integrated into the training software

Accessories protective holster, test leads, spare fuse, battery, test certificate (DIN 43751)