1.0 INTRODUCTION:
Introduction:
Measuring the line loop contact resistance by bridges is not the ideal method as
the test current is only a few milli ampere. Thus the value is not the true value of the contact
resistance. Model MRL-11 is a direct reading tester, and uses a test current of 100A DC,
resulting in true value and accurate measurements.
Model MRL-11 adopts
digital circuit technique and is used for measuring contact resistance of
switch control equipments at test current of 100A DC. The measurements are accurate as the
test is highly stable. ‘UDEY’ MRL-11 is a new, fully automatic micro controlled tester that
measures contact resistance at 100A DC, with large LCD screen, built in printer.
MRL-11 is micro controller operated user friendly, accurate, reliable, small, light weight
and reliable tester. MRL-11 incorporates a large LCD screen for display of menu and results.
The results are printed on built-in printer after the test is over. MRL-11 incorporates
breakthrough technology and design that gives accurate and reliable results, again and again.
RS232 link is also provided
2.0 PRINCIPLE:
Principle
: Current of 100A DC is passed in the contact and voltage drop across the contacts
is sensed, processed and the resistance is displayed on screen.MRL-11 is micro controller
operated user friendly, accurate, reliable, small, light weight and reliable tester. MRL-11
incorporates a large LCD screen for display of menu and results. The results are printed on
built-in printer after the test is over. MRL-11 incorporates breakthrough technology and design
that gives accurate and reliable results, again and again. A true four terminal measurement is
used to eliminate the need for lead resistance compensation.
Contact Resistance Tester MRL-11
3.0
ADVANTAGES:
The advantages of MRL-11
·
Automatic measure of contact resistance in 3 seconds
·
True 4 terminal measurements: High accuracy. No lead compensation required
·
Test results saved automatically
·
Recall and print test results saved
·
Prints results on built-in printer
4.0 FEATURES
Features
·
Micro-controller operated
·
Front panel with legend
·
Built-in printer
·
Can recall stored last tests results saved.
·
Automatic calendar and time running.
·
Weight: 4 kg
