Rigol RP1005C Current Probe, DC-10 MHz, 300A Peak

This device can be directly connected to a BNC input connector of a waveform measuring instrument, and by clamping on a conductor to be measured, allows the current waveform to be easily captured.

Please note - This device must be used with the Rigol RP1000P Current Probe Power Supply.
 

RP1005C Parts Overview

Rigol RP1005C current probes can detect the current flowing through the conductor and convert it to voltage that can be displayed on and measured by the measuring instrument.

1. Slide Switch

It is used to open and lock the current sensor. You are recommended to lock the current sensor when measuring the conductor to be measured to avoid danger. For RP1003C and RP1004C, there are OPEN, FREE and LOCK indications on one side of the slide switch. The on/off status of the current sensor is related to the position of the slide switch.

• When the slide switch is at the OPEN position, the current sensor is open and at this point, the conductor to be measured can be connected to the current sensor;
• When the slide switch is at the FREE position, the current sensor is closed but not locked;
• When the slide switch is at the LOCK position, the current sensor is locked and at this point, the UNLOCK indication is covered (cannot be seen).
• For RP1005C, there are LOCK and UNLOCK indications on the slide switch. The current sensor is locked when the LOCK indication is displayed on the slide switch (the UNLOCK indication disappears).

2. Current Sensor

It is used to clamp the conductor to be measured and carries out the actual current measurement. It is a precision assembly including a molded component, a ferrite core and a Hall effect element. It may be damaged if subjected to sudden changes in ambient temperature, or mechanical strain or shock, and therefore great care should be taken in handling it.

3. Demagnetizing Switch

It is used to demagnetizing the core if it has been magnetized by switching the power on and off, or by an excessive input. Always carry out demagnetizing before measurement. The demagnetizing process takes about one second. During demagnetizing, the current probe outputs a demagnetizing waveform.

4. Zero Adjustment Dial

Use the zero adjustment dial to correct for the effect of a DC voltage offset or temperature drift on the device. When beginning measurement, after demagnetizing always carry out zero adjustment to adjust the baseline to zero.

5. Coarse Adjustment Trimmer (only applicable to RP1003C and RP1004C)

When adjustment is not possible within the range of zero adjustment dial, use a nonconductive screwdriver to (such as ceramic screwdriver) to adjust the baseline to the adjustable range of the zero adjustment dial via the coarse adjustment trimmer; then, use the zero adjustment dial to adjust the baseline to zero.
 
6. Output Connector

This connector can be directly connected to the BNC input terminal of the measuring instrument (such as oscilloscope or recorder), or be connected to other measuring instrument via BNC-to-Banana plug adaptor or similar adaptor. At this point, the current waveform of the conductor under measurement is output at a constant gain.

Note:

• For RP1003C and RP1004C, 0.1V/A on the output connector is the gain when the input impedance of the measuring instrument is 1MO; the corresponding gain is 1/2×0.1V/A=0.05V/A when the input impedance of the measuring instrument is 50Ω.
• For RP1005C, 0.01V/A on the output connector is the gain when the input impedance of the measuring instrument is 1MO; the corresponding gain is 1/2×0.01V/A=0.005V/A when the input impedance is 50Ω.

7. Power Plug

Connect the power plug to the corresponding receptacle of the power adaptor to supply power to the current probe terminator. Note: To avoid electric shock, do not touch the portion beyond the protective barrier during use.