How to ?
Calibrating and using probes
Compensate the signal path
Use the following procedure to compensate the internal signal acquisition path. Perform this procedure if the ambient
temperature has changed more than 5 °C (9 °F) since you performed the last signal path compensation. Perform the signal path
compensation once a week. Failure to do so may result in the instrument not meeting warranted performance levels.
1. Power on and wait for the instrument to complete its warm up period before continuing with this procedure.
2. Disconnect any probes you have connected to the input channels.
3. Set the instrument to Menu mode.
4. Select Instrument Calibration from the Utilities menu.
5. Note any instructions that appear in the resulting control window.
6. Click Run SPC to begin the procedure. The procedure may take several minutes to complete.
7. Verify that the Status changes to Compensated after the procedure is complete. If the Calibration Status field indicates
anything other than Compensated, see Signal Path Compensation Status for information on the readout and recommended
action.
NOTE. When making measurements at vertical scale settings less than or equal to 5 mV, you should perform the signal path
compensation at least once a week. Failure to do so may result in the instrument not meeting warranted performance levels at
those volts/div settings.
Compensate active probes
NOTE. This online help file supports many oscilloscope models from Tektronix. This feature is only available on some models.
Use this procedure to optimize gain and offset accuracy at the probe tip for each active probe. Allow the instrument and probe to
warm up before performing this procedure. Then complete the following steps:
1. If you have not already done so, connect the probe to one of the vertical inputs on the instrument.
2. For DPO7000C and MSO/DPO5000B instruments only, connect the probe tip to the probe compensation (Fast Edge on
some models) outputs. Connect only one probe at a time.
3. For MSO/DPO70000C/DX instruments, connect the probe to the DC PROBE CAL output through the deskew fixture as
shown in the Z-Active Probe Deskew Fixture Instructions. These instructions are available from the Documentation Browser
on your instrument desktop; click the Documentation icon.
4. Select Probe Cal from the Vertical menu to open the Probe Setup control window.
5. Select the channel to which the probe is attached.
6. Click Compensate Probe to begin the procedure. The Probe Status indicator changes to Pass when the procedure is
complete. If the procedure does not pass, contact your local Tektronix service personnel.
7. Remove the connections from the terminals.
DPO70000SX, MSO/DPO70000DX, MSO/DPO70000C, DPO7000C, and MSO/DPO5000B Series 575
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