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The Differential Probe - SI-9002 extends the measurement power of oscilloscopes
to power semiconductor circuits. This Differential Probe provides any general
oscilloscope with high voltage differential input.
Using a built-in differential amplifier, it scales and converts the high voltage
differential input to a low voltage single ended BNC output. The differential
input is useful in measurements of power semiconductor circuits, as no
reference to ground is required. Both the positive and negative sides of
the balanced input possess high voltage differential input up to 700 volt,
and its sensitivity can extend down to 100 mvolt. With bandwidth and high
response speed, it is adequate for accurate dv/dt measurement in the fastest
switching circuits of thyristors, bipolar transistors, or power MOSFETS.
The Differential Probe - SI-9002 is small and light, so it can be used
in a very convenient way; just plug it into the input of, for example,
the Handyscope HS3. The wide bandwidth and the high
accuracy of this Differential Probe cater for a wide range of applications.
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| Differential Probe 1:20-1:200 - SI-9002 - Specification |
| Bandwidth | DC to 25MHz (-3dB) |
| Attenuation Ratio | 1:20 or 1:200 |
| Accuracy | ±2% |
| Rise Time | 14 ns |
| Input Impedance | 4 Mohm
5.5 pF each side ground |
| Input Voltage |
| Differential Range* |
| 1:20 | ±140 V (DC+Peak AC) or 140 Vrms |
| 1:200 | ±1400 V (DC+Peak AC) or 1000 Vrms |
| Common Mode Range | ±1400 V (DC+Peak AC) or 1000 Vrms |
| Absolute Max. Voltage * | ±1400 V (DC+Peak AC) or 1000 Vrms CAT III |
| Output |
| Swing (into 2k ohm load) | +/-7 V |
| Offset (typical) | <+/-5 mV |
| Noise (typical) | 0.7 mVrms |
| Source Impedance (typical) | 1 ohm @ 1 kHz, 8 ohm @ 1 MHz |
| CMRR (typical) | -80 dB @ 50 Hz, -60 dB @ 20 kHz |
| Ambient |
| Operating Temperature | -10 to 40 °C (14 to 104 F) |
| Storage Temperature | -30 to 70 °C (-22 to 158 F) |
| Operating Humidity | 25 to 85% RH |
| Storage Humidity | 25 to 85% RH |
| Power Requirements | Standard 4xAA cells
or regualted 9 VDC / 40mA mains adaptor** |
| Length of BNC Cable | 95 cm (37.4 inch) |
| Length of Input Leads | 45 cm (17.7 inch) |
| Weight (probe and PVC jacket) | 400 gram (14.1 ounce) |
| Dimensions |
| Height | 21 mm (0.8 inch) |
| Length | 170 mm (6.7 inch) |
| Width | 63 mm (2.5 inch) |
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| * |
Voltage limit is the lesser of the DC+Peak AC and RMS values. |
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a. |
The supplied voltage must be less than 12V and greater than 4.4V, otherwise the probe could be damaged or cant be operated properly. |
| b. |
polarity is + inside and outside. For wrong polarity, built-in circuit protects the probe, no danger or damage will occur. |
| c. |
When the voltage of the cells become too low, the power indicator on the panel will flicker. |
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