Preliminary Set Up; Functional Check - Teledyne Lecroy Everywhereyoulook DL05-HCM Operator's Manual

60 V Common Mode Differential Probes

Preliminary Set Up

1. Connect the probe (without tips) to oscilloscope channel 1.
2. Turn on the oscilloscope and allow at least 20 minutes warm-up time before
performing the Verification Procedure.
3. Turn on the other test equipment and allow them to warm up for the
manufacturer's recommended time.
4. While the instruments are reaching operating temperature, make a photocopy of
the DLxx-HCM Probe Test Record and fill in the necessary data.

Functional Check

The functional check will verify the basic operation of the probe functions. Perform the
Functional Check prior to the Verification Procedure.
1. Return to the factory default settings:
a. Select File > Recall Setup from the menu bar.
b. Touch the Recall Default button.
2. Touch the C1 descriptor box to open the C1 dialog.
3. Verify that the correct probe is sensed and displayed on the probe dialog tab
behind the C1 dialog.
4. If the update firmware button is present, update the firmware.
Verification Procedure
A. Output Zero Voltage
1. Leave the probe connected to oscilloscope C1. Set:
a. C1 Vertical Scale to 200 mV/div
b. Horizontal Scale (timebase) to 1.0 µs/div
2. Turn on measurement P1 and set it to measure the mean of C1. Turn on statistics.
3. On the C1DLxx-HCM dialog (behind the C1 dialog), touch AutoZero.
4. Wait an additional 15 minutes, then clear sweeps on C1.
5. Record the value of P1: mean (C1) as "Output Zero" on the test record.
6. Verify that the value of Output Zero is less than the value on the test record.
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