The NRM series high-voltage probes are mainly used in high-frequency and high-voltage fields, such as DC high-voltage power supplies, X-ray power supplies, electrostatic precipitator power supplies, medical power supplies, CT or PECT drive power supplies, and various pulse high-voltage power supplies for measurement. The high-voltage probes can not only meet the requirements of harsh spatial electric field interference, but also be used in a wide temperature environment.
Overview
Product characteristics
1. Equipped with a standard BNC interface it can be directly connected to an oscilloscope.
2. Using imported resistive-capacitive devices it has a compact size and high bandwidth.
3. Adopting symmetrical full shielding measures to reduce proximity effects (stray capacitance) while ensuring consistency and stability in testing.
4. After compensation for high and low frequencies the linearity of the frequency band is good.
5. The voltage division ratio ranges from 1000:1 to 10000:1 and is compatible with various oscilloscopes.
6. High voltage probe bracket can be optionally selected for easy integration.
Models
| Item | NRM-1 | NRM-2 | NRM-3 | NRM-4 | NRM-5 | NRM-6 | NRM-7 | NRM-100 | NRM-12 |
| DC/Pulse voltage (kV) | 40/60 | 40/60 | 40/60 | 40/60 | 60/100 | 60/100 | 60/100 | 100/150 | 25/32 |
| 1k:1 Bandwidth (MHz) | 120 | 110 | 25 at | 140 | 120 | 110 | 140 | 110 | |
| 2k:1 Bandwidth (MHz) | 90 | 80 | 10k:1 | 100 | 90 | 80 | 100 | 100 | |
| Risetime (ns) 1k:1 | 3 | 3.3 | 14 | 2.5 | 3 | 3.3 | 2.5 | 3.5 | 3.3 |
| Cable Impedance (Ω) | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| DC Accuracy (%) | ＜0.15% | ＜0.15% | ＜0.15% | ＜0.15% | ＜0.15% | ＜0.15% | ＜0.15% | ＜0.15% | ＜0.15% |
|
AC Accuracy 2Hz-1000Hz (%) |
＜1% | ＜1% | ＜2% | ＜1.5% | ＜1% | ＜1% | ＜1.5% | ＜1.5% | ＜1.5% |
| AC Accuracy 1KHz-1MHz (%) | ＜1.5% | ＜1.5% | ＜3% | ＜2% | ＜1.5% | ＜1.5% | ＜2% | ＜2% | ＜2% |
| 1MHz - Max Band/2 Accuracy (%) | ＜5% | ＜6% | ＜5% | ＜5% | ＜5% | ＜7% | ＜8% | ＜7% | ＜5% |
|
Input R/C (MΩ/pF) |
400/13 | 400/13 | 400/10 | 400/8 | 400/12 | 400/12 | 400/8 | 600/15 | 300/7 |
| Cable Length (m) | 4.5 | 9 | 30 | 4.5 | 4.5 | 9 | 4.5 | 4.5 | 4.5 |
| Standard voltage ratio | 1000:1 | 1000:1 | 10000:1 | 1000:1 | 1000:1 | 1000:1 | 1000:1 | 2000:1 | 1000:1 |
|
Length (cm) |
44 | 44 | 44 | 44 | 47 | 47 | 47 | 57 |
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