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The passive probe ENVI is ideal for environmental testing and climate chamber measurements from -55°C to +155°C.
The world's first modern probe for this high-temperature range has a 400 V / 1250 V peak input voltage range, a 10:1 divider, and 350 MHz bandwidth, making it suitable for various applications.
Replaceable spring tips and various contact accessories ensure individual contact with high signal fidelity in different applications.
Because its BNC connector has divider readout (RO), the probe can be universally connected to any oscilloscope with a 1mω BNC input, including automatic scaling on the oscilloscope display.
All probes are calibrated at the end of production.
Factory calibration certificate is optional.
-55to 155 Environmental probe *PHT312-RO10 400Vrms(1,250 V transient overvoltage)
Key features:
1. Extremely wide operating temperature range
The core advantage of the ENVI high-temperature probe lies in its high-temperature performance. Both the probe and accessories can operate normally over the temperature range of -55°C to 155°C. The application range is as follows:
High-temperature process equipment such as metal furnaces and glass furnaces;
Extreme-temperature measurement;
Measurements in high-temperature environments such as automotive engines and brake systems.
2. Good high-frequency response characteristics
The probe has a bandwidth of 350 MHz and can respond quickly to signal changes. This means it can operate stably at high frequencies, making it suitable for application scenarios requiring fast sampling and data transmission.
3. High input voltage capability
The input voltage is 400 V and can reach a maximum of 1250 V, which enables the probe to adapt to a wider voltage range and meet application requirements in different environments. Its input impedance is 4.5 MΩ and input capacitance is 20 pF; these parameters make the probe's response to input signals more sensitive and stable.
4. Good stability and reliability
The ENVI high-temperature probe undergoes strict quality control and testing to ensure stable performance under harsh environments such as high temperature and high voltage. Its design uses advanced temperature isolation technology, which can effectively prevent temperature changes from affecting measurement accuracy.
5. Technical specifications
High-temperature range: -55℃ to 155℃
Bandwidth: 350 MHz
Input voltage: 400 V (up to 1250 V)
Input impedance: 4.5 MΩ
Input capacitance: 20 pF
Accessory temperature resistance: same as the probe, can withstand high temperatures from -55℃ to 155℃
The German PMK ENVI high-temperature probe, with its high-temperature performance, stable input characteristics, and broad application scenarios, is suitable for modern industrial and electronics applications. Whether for high-temperature industrial measurement, automotive electronic systems, or communication systems, this probe provides trustworthy measurement results with high performance and reliability. For precise measurement in extreme environments, the ENVI high-temperature probe is the appropriate choice.
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| Parameter | Value |
| Input Impedance (system) | 4.4 MΩ, ± 1 % |
| Cable Length | 2 m |
| Compensation Range | 10 pF ~ 25 pF |
| Order Number | 835-312-001 |
| Attenuation Ratio | 10:1, ± 2 % @ DC |
| Pollution Degree | 3 |
| Input Capacitance (system) | |
| Voltage Coefficient | 0.00025 % / V |
| System Bandwidth (-3 dB) | 350 MHz |
| System Rise Time (10 %-90 %) | 1 ns |
| Max Rated Input, CAT I | 400 V rms, 1250 V transient overvoltage |
| Max Rated Input, CAT II | 300 V |
| Input Coupling of Measuring Instrument | 1 MΩ AC / DC |
| Read-out Display | RO version with read-out display |
| Probe Weight | 93 g (probe only) |
| Probe Tip Diameter | 5 mm |