MR390E Meter Box Didactic Equipment Didactic Equipment Technical Training Equipment Electrician Trainer 1. Product Introduction 1.1 Product Description This equipment includes AC voltmeter, AC ammeter, DC voltmeter, DC ammeter, and power factor meter, which are suitable for teaching and skill training assessment of related majors in higher vocational colleges, technical schools, secondary vocational schools, and technical schools. 1.2 Product Features (1) The training table adopts an aluminum profile frame structure with a pad at the bottom. The measuring instrument and the training power supply are installed in an integrated manner, which is easy to use and not easy to damage. (2) The training table has a good safety protection system. (3) A timer is attached to the instrument panel. 2. Technical specifications 2.1 Technical parameters Power supply parameters: single-phase AC 220V ±10% Working conditions: ambient temperature -10℃~+40℃ Relative humidity <85% (25℃) 2.2 Dimensions and weight Dimensions: 1274mm×407mm×553mm Weight: about 10kg 3. Product component names and function introduction 3.1 Product main body No. Name 1 AC voltmeter 2 Power switch 3 Power output port 4 AC ammeter 5 DC voltmeter 6 DC ammeter 7 Delay timer 8 Power factor meter 3.2 Product accessories No. Name 1 ZE3502 Instrument box teaching equipment 2 4mm safety connection cable 1 meter double-ended yellow 3 4mm safety connection cable 1 meter double-ended green 4 4mm safety connection cable 1 meter double-ended red 5 4mm safety connection cable 1 meter double-ended blue 6 4mm safety connection cable 1 meter double-ended black 7 Fuse 5A 5*20 4. Product Configuration List No. Name Quantity 1 AC voltmeter 1 2 Power switch 1 3 Power output port 1 4 AC ammeter 3 5 DC voltmeter 1 6 DC ammeter 2 7 Delay 1 8 Power factor meter 1 9 ZE3502 instrument box teaching equipment 1 10 4mm safety connection cable 1 meter double-ended yellow 5 11 4mm safety connection cable 1 meter double-ended green 5 12 4mm safety connection cable 1 meter double-ended red 5 13 4mm safety connection cable 1 meter double-ended blue 5 14 4mm safety connection cable 1 meter double-ended black 5 15 Fuse 5A 5*20 5 5. Product teaching experiment list (see the experiment guide for details) (1) AC ammeter test experiment (2) DC ammeter test experiment (3) Delay test experiment (4) Power factor meter test experiment