700924
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.
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-end. 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).
700924
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 list as the maximum value.
Note: Dry cells and AC/DC adapter not included.
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