Chapter 2 Vertical System Setting RIGOL
DS4000E User’s Guide 2-9
connectors according to the probe calibration prompt message.
4) Adjust the distance between the RP7150 probe tips. Connect the positive
probe tip to the signal at the moddile of the calibration board and connect
the negative probe tip to both sides of the signal line.
5) Press OK and the oscilloscope starts to calibrate the probe.
Note: Please connect the probe calibration signal to the specified channel
according to the probe calibration prompt message. If the active probe is
connected to CH1, CH3 or CH4, the probe calibration signal should be connected
to CH2 via the clibration board. If the active probe is connected to CH2, the
probe calibration signal should be connected to CH1 via the calibration board.
5. Probe Info
Press Probe Info to view information about the probe currently connected,
such as the manufacturer, model, serial number and the date of last calibration.
6. Bias Voltage
The oscilloscope provides the bias voltage adjustment function for active probes.
This function is used to adjust the signal under test that exceeds the input
dynamic range of the probe amplifier to an appropriate range to ensure the
integrity of the signal under test. Press Bias Voltage and turn the
multi-function knob
to adjust the DC bias voltage. The range is from -12 V
to +12 V.
Tek Probe
1. Probe Type
Probe Type displays “Tek Probe”; for example, when Tek (Tektronix) P6245
probe is connected.
Note: When a Tek probe is used, the oscilloscope sets the channel input
impedance automatically according to the model of the probe actually
connected.
2. Mode
Press Mode and turn the multi-function knob to select the probe model
corresponding to the probe actually connected. You can press this softkey
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