• increase large current and low current two product.
• increase power (energy) display.
• current overrun and power transfinite adjustment process more intuitive, more convenient operation.
• current and power of the upper limit and lower limit alarm function can be set up respectively whether to enable.
• can adjust the transfinite alarm time.

In each area will show the instrument work normally, the corresponding parameters, the parameters of display format as described below:

Instrument display the ac voltage value is valid values,range is 0－600V, display format is 0.0 V to 600.0 V

If A zone shows "OVER", said the voltage is greater than the actual measuring range, shall be immediately disconnected or lower voltage circuit, otherwise, stay for a long time, may damage the instrument.

Instrument display the ac current value is valid values,according to the different type of products,display format is :

0.00－99.99mA RK9813N,the measured current under 100 ma

0.080－9.999A Current is less than 10 a

10.00－99.99A Current greater than or equal to 10 a

Instrument display power for active power, when the power factor is 1, it is equal to the apparent power;When the power factor isnt 1, active power is equal to the apparent power multiplied by the absolute value of power factor.