The 4231 is designed to safely analyze floating signals. The built in amplifier scales
and converts the high voltage differential input to a low, voltage single-ended BNC output,
compatible with any oscilloscope. The inputs are useful in measurements of power semiconductor circuits,
robotic drives, NC machines and the latest switching circuits.
-Switching Power Supply Design
-Motor Drive Design
-Electronic Ballast Design
-CRT Display DesignFeatures
-Up to +1400V (DC +Peak AC) Differential
and Common Mode
|Model 4231 Specifications|
|Bandwidth||DC to 25 MHz (-3dB)|
|Input Impedance||4 Mohm//5.5pF each side to ground|
| Input Voltage)**
-Differential Range-Common Mode Range
-Absolute Max. Voltage(Differential or Common Mode)
140 Vrms and +/- 140V(DC + Peak AC) @ 1/20
1000 Vrms and +/-1400V(DC + Peak AC)@ 1/2001000 Vrms and +/-1400V(DC + Peak AC) @ 1/20 & 1/200
1000 Vrms and +/-1400V(DC + Peak AC) @ 1/20 & 1/200 CAT III at 1/20 & 1/200
-Source Impedance (typical)
|+/- 7V( into 50 kohm load)
50 ohm (for using 1 Mohm input system oscilloscope)
|CMMR (typical)||-80dB @ 50 Hz, -60dB @ 20kHz|
|Ambient Operating Temperature||-10 to 40 degrees centigrade|
|Ambient Storage Temperature||-30 to 70 degrees centigrade|
|Ambient Operating Humidity||Up to 85% RH|
|Ambient Storage Humidity||Up to 85% RH|
|Power Requirements*||– Standard-4 x AA Cells , 9VDC/40mA Mains Adapter (Both Included)
-Options-USB Power cord Power leads
|Length of BNC Cable||37″|
|Length of Input Leads||17″|
|Dimensions||7 1/4″ x 2 3/4″ x 1″|
|Plugs 4mm Banana plugs||– Use with accessories below|
* a. The supplied voltage must be less than 12V and greater than 4.4V, or the probe could be damaged or will not operate properly.
b. polarity is “+” inside and “V” 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.
** (Input Voltage)The differential and common mode voltage range is the operating voltage range and the absolute voltage range is the safety voltage range.