2. Overview
13
2 Overview
This chapter contains general information about the AT682/683 Megohmmeter .The
information is organized as follows
Introduction
Main Specifications
Feature overview
2.1 Introduction
Thank you for purchasing AT682/683 Megohmmeter.
The Applent AT682/683 is a Megohmmeter (Insulation Resistance Meter) for quality
control and laboratory use. AT682/683 is used for measuring insulation resistance of
electronic components, devices, dielectric materials, wires, cables and etc.
The AT682/683 Dual Display (insulation resistance and leakage current) Megohmmeter
includes 4-digit (9,999 counts), 6-range (auto and manual), broad measurement range
(10k~1T) and super fast test rate (55 readings per second). The voltage applied to the
device under test (DUT) is programmable from 1 to 1000 volts.
The AT682/683 can output comparison/decision results for sorting components into 2 bins.
Furthermore, by using the handler interface, the AT682/683 can be easily combined with a
component handler and a system controller to fully automate component testing, sorting,
and quality-control data processing. A GD/NG indicator on VFD provides a visual display
of test results based on a preset limit. Thirty sets of test conditions are stored in the unit
and can be reprogrammed by the user.
The RS232C (used SCPI) and Handler interfaces are standard interfaces on the
AT682/683 and enabled automatic testing.
2.2 Main Specifications
Full AT682/683 specifications are included in Appendix A.
Some main specifications of the AT682/683 include:
Measuring Insulation Resistance and Leakage Current。
Output Negative Voltage: 1.0VDC~1000VDC, Basic Accuracy:1%
<100V: 0.1V step 100V: 1V step
Basic Accuracy: <1G: 1%, 1G: 3%,10G: 5%
Max Charge Current: 30mA 5mA
Automatic Test with 6 Ranges
AT682:Board Measurement Range from 10k
to 1T
AT683:Board Measurement Range from 100k
to 10T