The portable single phase standard meter SNT 1000 is a device which is used for calibrating the energy errorˎ voltageˎ currentˎ active powerˎ reactive powerˎ apparent powerˎ frequencyˎ power factor and etc. It is especially used for checking the accuracy of single phase energy meters. It has a easy operation, and all the operation steps are displayed on the screens. All the parameters and measured data are displayed on one screen. Functions & Features The device is mainly used for the calibration of single phase energy meter and the testing of low voltage ratio. It is based on the technology of 32-digit 150MHz DSP. It uses 16-digit AD transfer, which makes the error stable and higher accuracy. (Compared with the ones using the meter chip) Color LCD display. All the parameters are displayed on the same screen. It can work with current clamp,simulate load to generate current, to simplify the field work and increase the efficiency. It can display the terminal current, clamp current and their power, total power. It can measure the ratio of low voltage CT, with a 500A clamp and a small current clamp. It can measure the harmonics data during 2～43 times. And it also display the real time current and voltage waveform, to help judge the field situation. It can measure out the energy meter constant within one energy pulse period. It can save data for 1000 meters. RS232 port to work with the PC for data management. It has low frequency pulse output, which is used for self-calibration and being calibrated.