GENERAL SAFETY RULES
Please read all instructions. Failure to follow all instructions listed below may result in injury. If the
equipment is used in a manner other than as specified in these operating instructions, the protection
provided by the equipment may be impaired. Always wear eye protection.
DO NOT OPERATE
unit from a DC power source.
Do not abuse the power cords. Never carry the instrument by the cord or attempt to unplug the
instrument using the cord. Always operate the instrument with the standard installed cord. Changing or
using a damaged cord can increase the risk of electrical shock. The cord should be checked
periodically for any damage.
Do not position the instrument such that it would be difficult to operate the disconnect device (plug) on
the end of the power cord.
The outside housing should remain intact and solid. Any damage, chipping, or separating exposing
internal wires is a hazard. Instruments should not be used in this condition. The outside housing should
be periodically checked for damage.
Duty Cycle:
The B300-MR series is designed for a 50% duty cycle. This instrument is equipped with an
internal thermal switch that will shut down the device if overheated. The instrument will automatically
reset itself when the temperature drops. Continuous operation may cause overheating and damage the
Contour Probe.
Operating Environment:
Temperature: 32° to 104°F (0° to 40°C). Relative humidity: 10% to 95%, non-
condensing
Shipping and Storage Environment:
Temperature: 40° to 140°F (4.44° to 60°C). Relative humidity:
5% to 95%. Vibration and shock: As encountered in normal shipping and handling with no degradation.
General Cleaning
The outside surface of the instrument can be periodically wiped clean with a clean cloth and a mild
general purpose cleaner. Avoid using cleaners such as lacquer thinner, or mineral spirits that could
damage the outside housing.
Never attempt field service. All 300 series Contour Probes should be returned to the factory for repairs.
OPERATION:
Connect the instrument plug into a grounded power outlet of proper voltage. Place the
Contour Probe legs upon the work surface with the suspected defect at right angles to the legs (good
contact will produce the best results). Push the test switch to energize the instrument. Lightly dust or
float dry magnetic inspection powder over the area being inspected. Defect indications will be revealed
in a direction shown on figure 2. Turn the Probe 90 degrees from the first test and repeat the process.
This method may also be utilized when applying a wet medium. Check all procedures and standards for
further details involving inspection specifics.
Do not position the instrument housing against ferrous materials while energizing. The
internal magnetic field created during such positioning could damage the circuitry and
effect instrument performance
.
CORRECT
INCORRECT