700924 Differential Probe 1400V / 100 MHz (DISCONTINUED) (DISCONTINUED)
The 700924 high voltage differential probe is an active voltage probe with high speed capabilities for measuring floating and high-speed differential signals in combination with single-ended input oscilloscopes. This differential voltage probe's attenuation ratio is switchable between 100:1 and 1000:1.
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Bandwidth |
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DC to 100 MHz |
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Attenuation |
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1000:1/100:1 |
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Max. Input Voltage |
: |
±1400 V (DC + ACpeak) or 1000 Vrms CAT III |
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Max. Differential Voltage |
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±1400 V (DC + ACpeak) at 1000:1 attenuation |
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Probe Power |
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Internal battery or probe power supply |
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B9852MJ power cable is sold separately |
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700924 Differential Voltage Probe
- Capable of Wide-Band, High-Voltage Floating Measurements
- Allows you to use a single-end input oscilloscope for wide-band differential input measurements
- Connect the probe to the input of a single-end input digital oscilloscope
- Two or more differential probes can be connected to measure signals with different ground levels on each channel
Applicable for all Digital Oscilloscopes or ScopeCorders.
With increases in the speed of measured signals in recent years, it has become necessary to make floating measurements over a wide frequency band. The 700924 differential probe lets you make wide-band (100 MHz) differential input measurements by just connecting the probe to the input of a single-end input digital oscilloscope.
Oscilloscope input amplifiers are normally single-ended. They do not provide accurate measurements when used in combination with a 10:1 passive probe for measuring the gate-to-source voltage of a switching power supply, or potential difference with a common mode voltage in elements such as Insulated Gate Bipolar Transistors (IGBTs).
Furthermore, there is a risk that current will enter through the oscilloscope ground line and damage the oscilloscope.
| Input type | Balanced differential input |
|---|---|
| Frequency band | DC up to 100 MHz (-3 dB) |
| Input attenuation ratio | Switched between 1/100 and 1/1000 |
| Input impedance | Approximately 4 MΩ, approximately 10 pF parallel |
| Gain accuracy | ±2% (common mode voltage: 400 V or less) ±3% (common mode voltage: 1000 V or less) |
| Maximum allowed differential voltage |
±350 V (DC + ACpeak) or 250 Vrms (1/100 range) ±1400 V (DC + ACpeak) or 1000 Vrms (1/1000 range) |
| Maximum common mode input voltage |
±1400 V (DC + ACpeak) or 1000 Vrms (both 1/100 and 1/1000 ranges) |
| Maximum input voltage | ±1400 V (DC + ACpeak) or 1000 Vrms (1/1000 range) |
| Common Mode Rejection Ratio (CMRR) | -80 dB (60 Hz), -50 dB (1 MHz) |
| Output voltage | ±3.5 V |
| Output impedance | Used with 1 MΩ input impedance |
| Power supplies | Dry cells, four R6P (SUM-3); when using the AC/DC adapter, use an output voltage of 6 V/200 mA or greater/center plus |
| Dry cell life | Approximately 2 hours under continuous use |
| External dimensions (approximate) | 207 mm x 83 mm x 38 mm¹ |
| Total length | Approximately 1.5 meters |
| Weight | Approximately 800 grams (excluding dry cells) |
| Approved standards | EMC: EN55011: 1991 + A1: 1997 + A2: 1996 EN50082-1: 1992 Safety: EN61010-1: 1993 + A2: 1995 EN61010-2-031: 1994 |
¹: 38 mm is listed as the maximum value.
Note: Dry cells and AC/DC adapter not included.
Model and Code
| Model Name | Code | Description |
|---|---|---|
| Differential probe | 700924 | DC to 100 MHz band |
Each 700924 differential probe comes standard with red and black pincher tips (one each).