TR1002B high-voltage differential probes are suitable for all major oscilloscopes in the market, converting a floating signal to a low-voltage signal at the reference ground level, which can be safely and easily displayed by any reference ground level oscilloscope. The probe can be used at frequencies up to 25MHz for 1500V voltages and has high common-mode rejection, making it an excellent choice for non-georeferenced, floating, or isolated measurements. Angstrom oscilloscope differential probes are ideal for power testing, switching power supplies, inverters, motor drive control, switching power supply development, maintenance and evaluation.
Features:
• Safe floating measurements
• No damage to the oscilloscope and device under test
• Strong anti-interference ability
• Audible and visual alarm function
• 5MHz bandwidth limit function selection
• Good common-mode noise rejection
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High performance differential probeThe probe is certified for ISO17025 calibration and meets IEC61010 high voltage safety standards. The BNC interface conforms to military and automotive electronic protocols (such as CAN bus) and is suitable for the harsh EMC environment of aerospace and rail transportation. Educational institutions can be purchased in batches for power electronics experimental teaching and training a new generation of engineers with standard operating skills. |
Measuring advantagesThe differential probe optimized for GaN/SiC devices supports 100V/ns ultra-fast dV/dt change, and the aluminum nitride ceramic isolation medium withstands 1500V silicon carbide device double pulse test. Opto-coupled technology enables zero electrical connection between the front of the probe and the oscilloscope, allowing engineers to safely capture precise details of 10ns dead time. |
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CMRR Common Mode Rejection CapabilityCommon Mode Rejection Ratio (CMRR) refers to the ability of a differential probe to reject any signal common to two test points in a differential measurement. If the CMRR index of the differential probe is not good, the common mode voltage will be added to the differential voltage to cause measurement error. |
Bandwidth LimitThe probe bandwidth can be limited to 5MHz, which is close to the switching frequency of most switching transistors (FETs) in a switch-mode power supply (SMPS). The 5MHz filter eliminates high frequency content, noise and harmonics from the instrument to facilitate the characterization and testing of switch mode power supplies. |
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Noise testDifferential probe bottom noise measurement operation: use a special short-circuit accessory to connect the probe input, the oscilloscope selects the AC coupling mode, and the vertical gear is adjusted to the waveform accounting for 60-80% of the screen height. Setting the time base to 1ms/div ensures that a full cycle is captured and the average sampling mode is enabled. Adjust the trigger level to the bit line in the waveform and measure the effective value noise (Vrms) after verifying that the waveform is stable. |
| Model | TR1002B |
| Bandwidth (-3dB) | 25MHz |
| Rise time | ≤5ns |
| Precision | ±2% |
| Range selection (attenuation ratio) | 50X/500X |
| Maximum differential measurement voltage | 50X：±150V DC+ Peak AC 500X：±1500V DC+ Peak AC |
| Common-mode voltage | ±1500V DC + Peak AC |
| Maximum input voltage to ground | 600VCATⅢ 1000VCATⅡ Vrms |
| Input impedance | Single-ended to ground: 5MΩ±1% Between Inputs: 10MΩ±1% |
| Input capacitance | Single-ended to ground: ＜4pF Between the two inputs:＜2pF |
| CMRR | DC: ＞80dB 100KHz: ＞60dB 1MHz: ＞50dB 3.2MHz: ＞30dB 50MHz: ＞26dB |
| Noise level | 50X: ＜50mVrms 500V: ＜300mVrms |
| Overload indication voltage threshold | 50X: ≥150V 500V: ≥1500V |
| Bandwidth limit (5MHz) long | ≥-3dB@5MHz |
| Overload indicator | have(Red light) |
| Overload alarm sound | have(Optionally closed) |
| Auto-save function | have |
| Offset adjustable function | have(Adjust in test mode) |
| Terminal load requirements | ≥100kΩ |
| power supply | USB 5V/1A adapter |
| Safety meets standards | EN61010-1:2010 |
| EMC is compliant | EN61326-1:2013 EN61000-3-3:2013 |
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