LKG 610
Netech Corporation
110 Toledo St, Farmingdale, NY 11735,
Block Diagram Description
Test Load:
The input test load is user selectable to AAMI ESI –1993 or to IEC 601.
RMS Converter and Amplifier:
The input amplifier buffers the input. The RMS
converter generates a DC voltage equal to the RMS value at its input. The gain
Amplifier sets the gain for the measurements. When the MODE switch selects leakage
current measurement, the AAMI LOAD is connected in front of the INPUT AMPLIFIER,
and the voltage developed across it from the leakage current is measured.
Current Source and Amplifier:
Resistance is measured by connecting the
current source to the resistance to be measured and measuring the voltage with the
input amplifier.
Test Receptacle:
This supplies power to the unit under test, 110 VAC rated at 15
Amps (220 VAC). The rocker polarity switch selects NORMAL, OFF and REVERSES
polarity in the test receptacle.
Display:
All measurements are displayed on a 3-1/2 digit LED display. Over range
is indicated by showing a 1 in the most significant digit