UNI-T UT-P08A 350MHz Passive Probe
Assembly Drawing and Technical Specifications
Assembly Components
The UT-P08A passive probe assembly includes the following parts:
- BNC-Adapter / BNC Adapter
- Massefeder / Ground Spring
- IC-Spitze / IC Tip
- Federhaken / Sprung Hook
- Einstellwerkzeug / Adjustment Tool
- Markierungsring / Marker Ring
- Masseleitung / Ground Lead
Manufactured in China.
Specifications
These specifications apply to a UT-P08A probe when installed on a compatible oscilloscope with a 1 MΩ input impedance. The instrument requires a warm-up period of at least 20 minutes and must be operated within specified environmental limits.
| Parameter | UT-P08A |
|---|---|
| Attenuation | 10X |
| Input Resistance | 10MΩ |
| Input Capacitance | 6.5pF - 14.5pF |
| System Bandwidth | DC ~ 350MHz |
| Compensation Range | 10pF - 40pF |
| Maximum Working Input Voltage | ≤ 600V pk |
| Safety | Conforms to IEC-61010 CAT II, 300V AC |
| Net Weight | < 55g |
| Cable Length | 120cm ± 1.5cm |
| Operating Temperature | -10°C - +50°C |
| Humidity | ≤ 85% (Relative Humidity) |
Maintenance: Compensation Adjustment
Before taking measurements, it is essential to check and adjust the probe's compensation to match the oscilloscope channel inputs. Most oscilloscopes feature a square wave reference signal output on the front panel for this calibration. Connect the probe to the signal source to display a 1kHz test signal on the oscilloscope. Ensure the probe is set to the X10 position for adjustment.
Working Voltage Derating Curves
The document includes graphical representations of the maximum working voltage derating as a function of frequency. These curves, titled "Maximum Working Voltage Derating Curve (VDC+Peak AC)", illustrate the reduction in allowable voltage for the 10X attenuation setting as signal frequency increases.
