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ratings, and current ratings specified in this manual or on the back of the instrument. Failure to do so
may damage the instrument, lead to a safety hazard, or cause a fire. Failure to use the specified fuses
will void the warranty.
Servicing
Do not substitute parts that are not approved by B&K Precision or modify this instrument. Return the
instrument to B&K Precision for service and repair to ensure that safety and performance features are
maintained.
Cooling fans
This instrument contains one or more cooling fans. For continued safe operation of the instrument, the
air inlet and exhaust openings for these fans must not be blocked nor must accumulated dust or other
debris be allowed to reduce air flow. Maintain at least 25 mm clearance around the sides of the
instrument that contain air inlet and exhaust ports. If mounted in a rack, position power devices in the
rack above the instrument to minimize instrument heating while rack mounted. Do not continue to
operate the instrument if you cannot verify the fan is operating (note some fans may have intermittent
duty cycles). Do not insert any object into the fan's inlet or outlet.
Do not short-circuit batteries
When using a DC load to discharge a battery, do not exceed the battery manufacturer's specified
maximum rate of discharge.
Use correctly sized wires
To connect the load to the power supply, use a wire diameter large enough to handle the maximum
continuous output short-circuit current of the power supply without the wire overheating.
For continued safe use of the instrument
• Do not place heavy objects on the instrument.
• Do not obstruct cooling air flow to the instrument.
• Do not place a hot soldering iron on the instrument.
• Do not pull the instrument with the power cord, connected probe, or connected test
lead.
• Do not move the instrument when a probe is connected to a circuit being tested.
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