Product/Service

Micro-Ohmmeters

Source: Vanguard Instruments Company Inc.

Micro-Ohmmeters
We offer two inexpensive, very reliable micro-ohmmeters designed for portable field or shop use

Vanguard Instruments Company Inc. offers two inexpensive, very reliable micro-ohmmeters designed for portable field or shop use:

• Model Auto-Ohm - 100-ampere true dc with ramping
• Model ATO-250 - programmable range of 10 to 250 amperes true dc with ramping

Both units provide:

• latest switching power supply technology for very low weight
• true dc ramped test current (no ac ripple)
• automatic regulation of current rise and fall rates and of current level
• current level and rate of change shown on analog panel meter
• measured resistance values shown on digital display from 1 to 19,999 micro-ohms
• 4-terminal, quick-connect test leads.

Additional Capabilities of the ATO-250 are:

• Test currents of 10, 15, 30, 60, 125 and 250 amperes
• 4 line, sunlight readable backlit LCD display
• Heavy-duty keyboard control
• Built-in thermal printer
• RS-232C interface for downloading to PC