Introduction; Ease Of Use; Impressive Accuracy; Unique Measuring Technique - Raytech Micro Junior 2 Instruction Manual

6 Introduction

Digital Micro ohm meter, Micro Junior 2, was designed for high degree of accuracy for the
measurement of very low resistance. This technology was then packed into a portable test system
for use by apparatus manufacturers, rebuild shops, and electrical maintenance crews.

6.1 Ease of use

This intelligent system has an easy to use operation screen, which allows quick selection of the
current level and resistance level to be measured. The system has the ability to detect the
resistance level and suggest the correct range to select which provides for extremely accurate
results.

6.2 Impressive accuracy

The Micro Junior 2 is a high precision, fully automatic, microprocessor based system. This system
is designed for highly accurate readings on-site with laboratory precision.

6.3 Unique measuring technique

This newly designed technique of measurement incorporates a high precision measurement circuit
which will automatically measure with current flow in one direction, then the system will reverse the
current flow and display very accurate results to 0.1. The system allows long term
measurements at 10 A without frequent recharging

6.4 Operation

The Micro Junior 2 applies a preset current level, selected by the user. The results of the test are
displayed within a few seconds automatically. The results are reported on the easy to read liquid
crystal display.

6.5 Compact design

The Micro Junior 2 is a lightweight system that comes complete with its own rugged waterproof
Fieldcase.

6.6 Simple maintenance

There is No maintenance required. There is No calibration procedure (No potentiometers to turn).
This is due to the utilization of high precision components in the design.

6.7 Advanced protection

Upon powering on the system initializes itself with a self-calibrating, circuit checking sequence. If
any problems are detected during this initialization period, or during operation, the operator is
immediately notified. The system constantly monitors the condition when turned on. The Micro
Junior 2 has extensive protection built in to the circuitry. This is one of the many reasons we can
extend our warranty to 2 years.
Page 13 of 44
90081-2.11 Micro Junior 2