Standard meter SNT 6038 is a three phase or single phase electronic standard meter of accuracy class 0.02 or class 0.05. It has been developed for the testing of electronic energy meters by means of meter test bench. It is designed for all modes of operation in three phase systems up to 120A.

Features:

1.    High precision and long term stability.

2.    Universal unit for many applications.

3.    Measuring various kinds of electric parameters in the three-phase or single phase circuit synchronously.

4.    Calculating directly the reactive power makes the phase place very accurate in angle measurement.

5.    Three energy constants only, leads to simple calibration and reliable result.

6.    Have the function of low frequency pulse input to calculate the error.

7.    Vector diagram display.

8.    Waveform display for voltage¤t of each phase.

9.    Analysis and display of harmonics.

10.  RS 232 and RS485 interface, can be operated by computer system.

Technical:

Power Supply:

Voltage                      AC 220V±10%

Frequency                   50HZ ±2HZ

Max power consumption       45VA

Using Condition:

Environment temperature:    10℃～30℃

Relative humidity            45%～75%

Outside magnetic intensity    ≤0.025mT

Frequency range            45HZ～65HZ

Test Current:

Range                      1Ma～120A

Error                      ±0.02% (50Ma…120A)(relative measurement value)

                           ±0.05% (1…50Ma) (relative range full-scale value)

Current display            1Ma…120A (1A, 10A, 100A)

Error                     ±0.02% (relative measurement value)

Test Voltage

Range                    50V～480V (automatic range switch)

Error                    ±0.02% (50V…480V)(relative measurement value)

                         ±0.05% (5V…50V)(relative range full-scale value)

Power Measure Error

Active power            ±0.02% (relative measurement value) 50V…480V, 0.05A…120A

Reactive power          ±0.05% (relative measurement value) 50V…480V, 0.05A…120A

Apparent power          ±0.05% (relative measurement value) 50V…480V, 0.05A…120A

Test Power Factor (PF=P/S) Error        0.05%

Display range                         -1～+1

Measuring Modes         

4 wire active / reactive / cross-connected reactive

3 wire active / reactive / cross-connected reactive

2 wire active / reactive

Energy Pulse Input

Frequency                0.5Khz

Voltage                   24V

Measurement Range of Input

Rated voltage             50V…480V

Rated current             0.001A…120A

Output                             TTL pulse, load ＞2kW

                                   High frequency pulse output: F=500Khz

                                   Low frequency pulse output: F=10HZ

Dimensions                         131mm×432mm×470mm

Weight                             16kg