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14 MTX 1032-B - MTX 1032-C

Description of MTX 1032-C (continued)

Description

The MTX 1032-C probe has 2 differential channels.

A LED indicates that it is switched on.

The probe does not include its own display facilities; it is designed for

connection to the CH1 and CH2 inputs of the oscilloscope so that the

differential signal present on the +/- inputs can be viewed.

Furthermore, this probe has two switches for selecting 1/10 or 1/100 as

the attenuation coefficient.

For each differential channel, the front panel of the MTX 1032-C probe

includes:

• 2 BNC connectors for the +/- inputs

• 1 BNC for output to the oscilloscope

• 1 attenuation coefficient selection switch: 1/10, 1/100

The MTX 1032-C is a stand-alone unit powered by the 230 VAC

50 Hz / 60 Hz mains supply.

Functional

description

1. Power up the probe using the mains lead. Check that the

corresponding LED comes on.

2. Connect the probe's output

"I"

coaxial cable to input CH1 on the

oscilloscope.

3. Connect the probe's output

"2"

coaxial cable to input CH2 on the

oscilloscope.

4. Connect the red BNC lead to the positive input of the probe and the

black BNC lead to the negative input of the probe.

5. Capture the signal to be measured.

6. Select the appropriate attenuation coefficient for the signal to be

measured (1/10 or 1/100) using the probe switch.

The signal is then displayed on the oscilloscope screen.

7. When the measurements are finished, disconnect the leads. Switch off

the probe and then disconnect the oscilloscope.

Compensation of

1/10 probes

1. Set the attenuation coefficient of the MTX 1032-C probe to 1/10.

2. Connect the first 1/10 probe [ref. 3-(1)] to the positive input of the

MTX 1032-C probe and then capture the Probe Adjust signal.

3. Compensate the probe and then disconnect it from the Probe Adjust

output.

4. Connect the second 1/10 [ref. 3-(2)] to the negative input, capture

the Probe Adjust signal and compensate the probe.

5. Connect the two 1/10 probes simultaneously to the Probe Adjust

output to check that the adjustment is balanced: the amplitude of the

square signal is cancelled out.

To use the 1/10 probes of the MTX oscilloscope with the MTX 1032-C

probe, remove the sprung hook and fit the crocodile clamp.

Under-

compensated probe

Over-compensated probe

Compensated probe