User manual

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5.1 MAINTENANCE
Please always keep in mind the following preventive steps to ensure the proper
operation of your instrument.
* Allow enough ventilation around the unit.
* Avoid keeping tools, equipment, or other objects on the top cover.
* Do not exceed the input/output limits in any condition.
5.2 TROUBLESHOOT GUIDE
Below is a list of common problems that may occur, along with their solutions.
Problem
Reason
Solution
Poor measurement
of V, I and W.
As components age,
there will be deviation in
measurement accuracies
as a result.
Periodic calibration is
required.
Contact B&K Precision for
service information.
Distorted output
1. The AC source output
voltage is too low.
2. Poor power factor
load connected at the
output.
1. Program higher output
voltage.
2. Check the power factor
of the load.
No Output and
Alarm
1. Ambient temperature
is too high.
2. Air vent path
obstructed.
1. Operate the unit
between 0 ~ 40 °C.
2. Remove any object or
debris that may prevent
proper ventilation
through the air path.
No Output and
Alarm
1. The output current is
higher than specified
limit.
2. Output Short circuit
1. Remove the overload.
2. Remove the short or
Remove the load.
No Output, No
display
The AC source line input
voltage is too low or too
high.
1. Measure the input
voltage, and regulate it if
it exceeds the specified
input range.