The 1865 + is the Megohmmeter for today's most challenging applications

A Megohmmeter/IR Tester with digital display used for high-accuracy measurements of high resistance and insula? on resistance. It includes a programmable limit for pass/fail tes? ng, USB host port, and RS-232 interface.

General Features

• Proven over many years in the field
• Measurement range up to 100 TΩ
• 0.5% measurement accuracy
• High-visibility blue LCD graphical display
• Automatic ranging
• Automatic zeroing of test leads
• Direct reading of Insula? on Resistance
• RS-232, I/O port, and USB interfaces
• Optional IEEE-488 to RS-232 Adapter
• Programmable test voltage from 1 to 1000 Vdc
• Programmable testing times
• 512 MB of internal storage of testsetup and results
• CSV file format for easy use with Microsoft Excel
• Limit entry for Pass/Fail testing
• Keypad lockout with password protection

Precision Measurements: The IET Labs 1865 + Megohmmeter provides resistance measurement capability from 1 kΩ to 100 TΩ (test voltage dependent) with a basic accuracy of 0.5%. To meet test requirements for a wide range of devices, the test voltage is fully programmable up to 1000 Vdc. Sensing the proper resistance measurement range is done automatically, thus eliminating setup errors; and in order to eliminate lead or fixture errors, the operator can easily initiate an automatic zeroing routine of test leads.

Easy to use: The 1865+'s menu programming system is significantly improved, simple controls and indicators combine for efficiency of test and productivity. Its multi-function keypad provides the operator with an easy way to program and make measurements.

Pass/Fail Testing: Measured results are automatically compared to an operator programmed limit for pass/fail testing. Pass/Fail indicator lights or a pass/fail output from the megohmmeter I/O interface provide a clear indication of the measured results.

Program and Data Storage: Test setup conditions and measured results of the megohmmeter can be stored in CSV format for easy use with Microsoft Excel. Storage options include:

• 512 MB of internal instrument memory for storage of setups
• A computer (via the RS-232 interface)
• A flash drive (via the USB host port)

Automated Testing: For automated system applications, the 1865+ Megohmmeter includes an RS-232 interface for control and data collection and an I/O interface connection with remote start and pass/fail outputs. An optional IEEE-488 to RS-232 adapter is also available (or can be added later), which enables the 1865 to be remotely controlled by a computer with ieee-488 interface.

Resistance or Current Display Mode: Besides a readout of insulation resistance in ohms, the operator can select a display mode for reading the measured current directly .

Safety Features: The 1865 + Megohmmeter provides safety features such as current limiting, a warning indicator when high voltage is active, and safety interlock, all for protection of the operator.

Component Test Fixture: An accessory fixture is available for use with the 1865+ Megohmmeter which accommodates a variety of component types, including radial, axial and chip components. Its shielded case reduces electrical noise and interference and includes a cover interlock switch and remote start for maximum operator safety.