Valhalla Scientific 4300C, Operation Manual

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General Information
Instrument Description
The Model 4300C is a unique instrument capable of handling even the toughest resistance measurement
applications. The 4300C is designed to measure the low resistance of such items as coils, transformers,
ballasts, heater elements, etc. Some features of the 4300C that give it an edge over competitive products
are:
•
"Charging Inductor" mode for reduced settling times.
•
"Disconnect Status" indicators designed with safety in mind.
•
Full 4-wire Kelvin terminal configuration.
•
Fully selectable test currents up to 10A.
•
Temperature Compensation.
•
Internal Hi-Lo Limit Comparator.
•
Available locking rear Bendix connectors.
•
Data outputs and remote programming capability.
Please read this manual thoroughly and all accompanying addendums before attempting to operate this
ohmmeter.
Instrument Identification
Valhalla Scientific instruments are identified by a two-part serial number. The Serial Tag is located on the
rear or bottom of the instrument. The number is in a form of 64-0000. The first two digits, called the serial
number prefix, indicate the model. It changes only when a change is made to the instrument. The last 4
digits, called the serial number suffix, are unique for each individual unit.
Be sure to include the entire serial number, both prefix and suffix, in any correspondence about your
instrument.
Safety Precautions
The power plug must be a three-contact device and should be inserted only into a three-contact mating
socket where the third contact provides a ground connection. If power is provided through an extension
cable, the ground connection must be continuous. Any discontinuity in the ground lead may render the
unit unsafe for use!
The Model 4300C utilizes forced air cooling of the internal components. This operates continuously and
care must be taken to ensure that the intake and exhaust ports remain clear. Blocked vents may cause a
dangerous overheating condition!