Selecting A Sensor Tip Cable; Table 6: Sensor Tip Selection Table - Tektronix TIVH Series User Manual

Selecting a sensor tip cable

Table 6: Sensor tip selection table

Most sensitive V/div
Sensor tip setting
WSQPIN2500X 2.5 V
WSQPIN1000X 1.0 V
SQPIN500X 500 mV
SQPIN100X 100 mV
MMCX250X 250 mV
50 mV
MMCX50X
MMCX10X 10 mV
1 On 1X range
2
On 2X range
3
(See page 35, Maximum differential input voltage vs. frequency derating graphs.)
TIVH Series Measurement System User Manual
CAUTION.
Avoid over-voltage conditions that can damage or degrade the sensor
head input termination by selecting the correct sensor tip cable. Selecting the
correct sensor tip cable attenuation factor is crucial to ensure that the sensor
head input termination is not degraded or damaged by an over-voltage condition.
Select the sensor tip cable that will provide the lowest attenuation possible for the
signal being measured.
When selecting a sensor tip cable for a particular application, consider the
following questions:
What is the maximum RMS/Peak Voltage at the test point being measured
(for example, under a fault condition)?
What is the minimum differential loading (input resistance) that my circuit
can tolerate?
How large of a signal do I want to display at one time on the oscilloscope?
What sensitivity do I need (for example, the minimum V/div setting)?
The following table will help you select the correct sensor tip. Start at the top of
the table and work down. Choose the first tip that meets all of your criteria.
Differential input specifications
1 Linear voltage range
±2500 V (5 kV
±1000 V (2 kV
±500 V (1 kV
±100 V (200 V
±250 V (500 V
±50 V (100 V
±10 V (20 V
Maximum
non-destruct voltage
2 (DC + pk AC)
) ±2500 V
P-P
) ±2500 V
P-P
) ±600 V
P-P
) ±600 V
P-P
) ±250 V
P-P
±250 V
)
P-P
) ±250 V
P-P
Operating information
Differential input
3 resistance
40 MΩ
40 MΩ
10 MΩ
10 MΩ
10 MΩ
10 MΩ
10 MΩ
19