The 1868 Megohmmeters (Models A&D) are precise, full-featured digital instruments with both resistance and current measurement modes. They are capable of measuring Insulation Resistance from 10k to 1P? at programmable DC test voltages between 10 and 1000V (1868A) or 50 and 5000V (1868D).

For charging high capacitive devices, the 1868A supplies a powerful charge current up to 80mA and the 1868D up to 18mA. Remote I/O, RS232 and IEEE-488.2 interfaces for remote control operation and communication with other instrumentation are standard on both models.

1.Measurement Range: 10k? to 1P?

2.Basic Accuracy: ? 2% to 1T?

3.Programmable Test Voltage: 10V to 1kV (1868A), 50V to 5kV (1868D)

4.Selectable Charge Current: to 80mA (1868A), to 18mA (1868D)

5.Leakage Current Measurement Down to 1pA (? 2% Basic Accuracy)

6.Programmable Charge, Delay and Discharge Times

7.5 Programmable Limit Sets

8.Internal Storage of 4 Tests (20 Steps each) Plus Additional Storage with Optional PCMCIA Memory Card

9.Standard RS232, IEEE and Remote I/O Interfaces

10.Graphic LCD with Text, Bar Graph and X-Y Graph Displays

11.Current or Resistance Display Mode

12.4 Ranges Plus Automatic Ranging

13.Automatic Zeroing

14.Contact Check Function

15.Floating Power Supply (1868A) for Measurements on Grounded Devices