TI5000 DC Current Sensor Testing Device

Metrology Performance

Basic accuracy error

Zero point output error

Full range output error

Linearity error

Return difference

repeatability error

Influence Quantity Performance

Power consumption measurement

Zero drift

Thermal zero drift (needs to be equipped with a temperature control box)

Thermal sensitivity drift (needs to be equipped with a temperature control box)

Overload capacity

Power supply voltage impact test

Load change rate (needs to be equipped with a load box)

Other Performance

Measurement bandwidth (requires high-frequency constant current source)

Response time (requires pulse current source)

• The direct measurement method (standard source method) is used to test the DC current sensor.

• The standard measuring tool has two sets of built-in power supply and output measuring instruments, supporting simultaneous detection of two current sensors.

• The current loop realizes automatic crimping through pneumatic means, improving testing efficiency.

• Special test software: Users can customize the test plan, including zero point error, full-scale output error, linearity, hysteresis (hysteresis), repeatability error, accuracy, etc., to realize automatic testing of the measurement performance of the current sensor.

☆ Power Supply Impact Test And Power Consumption Measurement

• Built-in DC ±(5.0 V ~ 50.0 V) adjustable power supply can test the power supply impact of the sensor under test.

• A standard ammeter is connected in series to the power supply module loop to measure the no-load or full-load power consumption of the sensor under test.

• Optional high-frequency constant current source of 1 mA ~ 10 A, DC ~ 1 MHz and high-frequency voltmeter can be used to measure the frequency response bandwidth of the sensor.

• Note: The high-frequency voltmeter can choose a six-and-a-half-digit digital multimeter with a measuring frequency of 300 kHz or an eight-and-a-half-digit digital multimeter with a measuring frequency of 1 MHz.

• If the sensor being tested is a current output type, a high-frequency coaxial shunt needs to be connected for I/V conversion.• Note: The sensor bandwidth test defaults to a single sensor unit. If multiple sensors are measured at the same time, it needs to be customized.

• Optional equipment such as a pulse current source with a peak value of 500 A and a di/dt of 50 A/μs, a standard pulse shunt, and an oscilloscope can be used to measure the sensor response time by comparing the rise time of the standard signal and the sensor output signal.

• If the sensor being tested is a current output type, a high-frequency coaxial shunt needs to be connected for I/V conversion.

• Note: The sensor response time test defaults to a single epitope. If multiple sensors are measured at the same time, it needs to be customized.

• Typical values of short-term stability: 0.003% (class 0.01), 0.005% (class 0.02), 0.01% (class 0.05).

• It can effectively ensure good repeatability and consistency in batch testing of industrial products.

• The ripple content of the current source is less than 0.5%, which can effectively reduce noise interference and ensure the accuracy of test results;

• At the same time, it can avoid surge voltage or current caused by strong ripples to ensure safe operation of the equipment.

• DC current sensors have many detection items, including zero output error, basic error, linearity error, hysteresis, repeatability error, etc.

• Users can choose special testing software and refer to relevant procedures and specifications for sensor testing. Users can customize testing plans (including testing items and testing points, etc.), store, read, edit and manage the tested sensor product library. After automatic testing is completed, users can Test report export.

• Software functions can be customized according to customer needs and subsequent software upgrades can be supported.

Output Range

(10%~120%)*RG, using relay program-controlled commutation

Accuracy

Class 0.01

Class 0.02

Class 0.05

Short Term Stability

(%*RG/min)

0.003

0.005

0.01

Measurement Uncertainty (k=2)

(%*RD+%*RG) [1]

0.006 + 0.004

0.012 + 0.008

0.03 + 0.02

Display Digits

7-digit decimal

7-digit decimal

6-digit decimal

Adjust Fineness

0.001%*RG

0.002%*RG

0.002%*RG

Maximum Load Voltage

3.5 V

Ripple Coefficient

≤ 0.5%

Setup Time

≤ 3 s

Adjustment Method

Adjust the output current value through mobile measurement and control console and host computer software

Protective Function

Open circuit protection, overload protection, overheating protection

Note

[1]: RD is the reading, RG is the range, the same below.

Voltage measurement scope

± (10mV~12V)

Current measurement range

10 mA, 100 mA, 1 A, manual or automatic shifting

Current measurement scope

± (1 mA ~ 1.1 A)

Measurement uncertainty (k=2)

0.003%*RD + 0.002%*RG

display digits

7-digit decimal

Temperature Coefficient

5 ppm/°C @ (0°C~40°C)

Sensor Power Supply

Supply voltage

DC ± (5.0 V~50.0 V) adjustable

Maximum load capacity

1A

Measurement uncertainty (k=2)

Voltage/Current: 0.2%, Power: 0.5%

Protective function

Short circuit protection, overload protection, overheating protection

AC power supply (customized)

AC 220 V power supply can be added according to user needs

Note

Sensor units can be customized according to user needs

Frequency Range

DC, 10 Hz ~ 1 MHz

Short Term Stability

DC: 0.005%/min

Measurement Uncertainty

(k=2)

AC: 0.01%/min @ 10 kHz, 0.05%/min @ 100kHz, 0.1%/min@1MHz

Max Load Voltage

DC: 0.02%

Application

AC: 0.08% @ 10 kHz, 0.5% @ 100 kHz

Pulse type

Unipolar pulse

Measurement Uncertainty (k=2)

0.5%

Pulse Width

1 ms ~ 100 ms, adjustment step 0.1 ms

Rise/fall Rate

>50 A/μs

Max Load Voltage

9 Vpk

Application

Current sensor response time test

Nominal Output Voltage

1 V

Measurement Frequency Range

DC~1MHz

Resistance Annual Stability

18 ppm

AC/DC Difference

20 ppm @ 50 Hz, 25 ppm @ 100 kHz

Phase Difference

5 μrad @ 50 Hz, 500 μrad @ 100 kHz

Application

Convert secondary current signals from Type I/I sensors to voltage for bandwidth or response time testing

Maximum Power Consumption

Maximum power consumption is 4 kVA per 500 A current source

Preheat Time

30 minutes

Working Environment

Temperature: 0°C~ 40°C

Humidity: 20%R H ~ 85%R H, no condensing.

Others: No electromagnetic field interference

Storage Environment

Temperature: -20°C~ 70°C

Humidity: 10%R H ~ 95%R H, no condensing.

Communication Interface

RS232 x 1