Probe Compensation; Low-Frequency Compensation - Tektronix 2212 User Manual

Initial Setup
Probe Compensation
Low-Frequency Compensation
Misadjustment of probe compensation is a possible source of measure-
ment error. The attenuator probes are equiped with compensation
adjustments. For the best measurement accuracy, you check probe
compensation before making measurements (see Figure 2-1).
Use the following procedure to check and compensate the probes.
Step
1.
Switch the instrument on and obtain a baseline trace.
Step 2. Connect the two supplied 10X probes to the CH 1 OR X and
CH 2 ORY input connectors.
Step 3. Connect the probe tips to the PROBE ADJUST connector and
the probe ground leads to scope ground.
Step 4. Press the AUTO SETUP button.
Step 5. Set:
Step 6.
Step 7.
Step 8.
Step 9.
Vertical MODE ........................ CH
1
CH 1 VOLTS/DIV .................... 0.1 V
CH 2 VOL TS/DIV .................... 0.1 V
Vertically center the PROBE ADJUST square wave signal.
If necessary, adjust the Trigger LEVEL control to obtain a stable
display on the positive SLOPE.
Check the square-wave display for overshoot and rolloff
(see Figure 2-1). If necessary, use a small-bladed screwdriver or
alignment tool to adjust the compensation on the probe for a
square front corner on the square wave displayed.
Select the CH 2 Vertical MODE to turn CH 2 on in the display.
Repeat step 6 and 7 for the probe on the CH 2 input connector.
2212 User Manual
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