Naresh Radio LLP

The MECO MC-941 is a compact and reliable analog insulation tester designed for quick and accurate measurement of insulation resistance. It operates with a test voltage of 500 V DC and can measure resistance values up to 1000 MΩ, making it suitable for motors, transformers, machines, cables, and electrical installations. With a large 80 mm analog scale and ±5% accuracy in its effective range, the instrument ensures clear and dependable readings. Built in a rugged ABS resin housing with a polycarbonate front cover, it is both durable and lightweight for field use. The tester is equipped with simple push-button operation, stable terminal voltage output, and complies with IEC 61010 safety standards (CAT II, 1000 V). Supplied with test leads, batteries, a carrying case, and calibration certificate, the MECO MC-941 is an ideal tool for electricians, maintenance teams, and engineers needing a portable and sturdy solution for insulation testing.

General Specifications

The MECO 27 AUTO BL is a reliable and easy-to-use Auto Range Digital Multimeter with a Backlit LCD Display for clear visibility in all environments. Designed for accurate measurement of essential electrical parameters, it is widely used by electricians, technicians, and field engineers.

• Auto Range Digital Multimeter

• Measures AC/DC Voltage, DC Current, Resistance & Continuity

• Diode Test function

• Backlit LCD Display for low-light usage

• Data Hold and Low Battery Indication

• Compact, rugged, and portable design

• Suitable for electricians, field technicians, educational labs, and workshops

• Ideal for basic troubleshooting and testing of electrical circuits and appliances

Kyoritsu 4105A Earth & Ground Resistance Tester is a compact, reliable digital earth resistance tester designed for measuring the resistance of grounding systems and earth voltage in electrical installations. It supports both 3-pole and 2-pole test methods with selectable resistance ranges up to 2000 Ω, and can also measure earth voltage up to 200 V AC.

This tester features a clear LCD display, dust and drip-proof (IP54) rugged construction, and a 2 mA measuring current that helps avoid tripping earth leakage breakers during testing. It meets key safety standards (IEC 61010-1, IEC 61557) and includes test leads, auxiliary spikes, probe, carrying case, strap, and batteries for field use.

Ideal for electricians and maintenance professionals, the 4105A delivers accurate earth resistance and voltage readings in a lightweight, portable form.

The MR701 Alcohol Checker is a compact and easy-to-use digital breath alcohol tester designed for quick and reliable screening of alcohol concentration. It features a sensitive semiconductor sensor that delivers fast response and stable readings, making it suitable for personal use, workplaces, security checks, and roadside self-testing. The device provides clear digital display results, simple one-button operation, and quick warm-up time for instant measurements. Its lightweight and portable design allows convenient carrying, while low power consumption ensures longer battery life. The MR701 Alcohol Checker is an ideal solution for preliminary alcohol detection where accuracy, portability, and ease of operation are required.

 SCOPE OF LEARNING:

Study of Linear Displacement Measurement Using Resistive Transducer (LDR)

·      TECHNICAL SPECIFICATIONS:

Power Supplies:

·   DC Dual Power Supply IC Regulated +12V DC, 150mA.

·   DC Power Supply IC Regulated +5V DC, 150mA.

·   DC Power Supply IC Regulated 0-12V DC, 150mA.

·   Operated on Mains power 230V, 50Hz +10%

Digital Meters:

·   Voltmeter 200mV (Distance in mV)

Components are mounted on the panels are:

·   Resistors

·   Capacitors

·   IC 741

·   Variable Resistor For Gain and Zero Setting

·   Differential Amplifier With Feedback 

·   Lead Compensation System 

·   O/P Provided On Test Points for Monitoring & Controlling. 

·   LDR Sensor Mounted on External Base with Output Carrying out through 2mm Connector.

SALIENT FEATURES:

·   Front panel built with high class insulated Printed Circuit Board sheet with well printed circuits and      symbols.

·   Instruction manual.

·   Connections are brought out through 2mm Colored Sockets.

·   Patch Cords 2mm.

·   The trainer is housed in ABS Plastic cabinet.

·   Size of the trainer set 12”x8”

OPTIONAL ACCESSORIES:

·   Digital Multimeter