User Manual

Chapter 8
Integral Operation Function
Access the integration function by pressing the “Integ” button. This function integrates power and current
measurements over time to generate measurements in producing (sold) or consuming (buying) directions.
The 5335B power meter can be used for integral operation of the current and power of the input unit. Technical
indicators can be calculated. In addition, the range can be switched automatically in the Buy and Sell modes
according to the input level so as to accurately complete integrate measurement.
During operation of the air-conditioner, refrigerator, induction cook and other household appliances, the working
status will change frequently, resulting in changes of the working current in a large scale. The current may
decrease of dozens of amperes to a few milliamperes. Ordinary power measuring instruments can only be used
for integral measurement within one range. If the measured value exceeds the current maximum range, the
measurement result is inaccurate. You need to manually switch the range before integral measurement. Integral
measurement of equipment subject to large current changes cannot be performed continuously. The BK5335B
power meter can automatically switch the range in the integral mode. Therefore, errors of integral measurement
caused by manual range switching can be eliminated, and the power consumption of household appliances can
be measured more accurately. See the schematic diagram below.
Figure 8.1: Range Switching
36