Ballantine 3207, Инструкция по эксплуатации

Страница: 11 / 35

BALLANTINE LABORATORIES, Inc. MODEL 3207 MICRO-OHM METER
11
SECTION 1
GENERAL INFORMATION
1.1 Introduction
The Ballantine Model 3207 is a fully portable digital micro-ohm-meter with a 4½ digit LED
display, capable of measuring low resistance with 0.1 micro Ohm resolution. It provides a
RS232 COM PORT for computer interface. It employs the proven 4-wire method where a
fixed DC current is applied to the DUT and the voltage drop across the DUT is measured and
displayed as a proportional resistance reading. This method is used to eliminate the effects
of lead resistance on the accuracy of measurements. It is a highly reliable, powerful
performance and heavy duty instrument. It is a direct reading instrument leading to simple,
speedy and accurate measurements.
1.2 Features
Important features of the micro-ohm meter model 3207 includes:
1. Accuracy:
±
(0.5% + .5dgts) for 2 m
Ω
&
±
(0.05% + .5dgts) for other ranges.
2. Pulse Mode operation
3. Digital 4½ digit LED direct reading instrument with0.1
μΩ
resolution.
4. Operating on 115V, 60Hz AC mains.
5. 4 Wire measurement method to avoid lead resistance.
6. Easy to operate, soft touch keys for range selection.
7. Rugged and Reliable design.
8. Designed for user safety.
9. Long term calibration stability.
10. Computer interface. (RS232 communication port.)
1.3 Applications:
•
Resistance measurement of wires, cables, conductor etc.
•
Winding resistance measurement of motors, transformers and generators.
•
Contact resistance measurement of Relay, contactor, switches and LT switchgear.
•
Resistance measurement of welding joints and metallic bonds.
•
Resistive component and semiconductor devices etc.