Adjustments
Adjustments
Use the following procedures to make adjustments to the THDP & TMDP Series p robes. (For probes with serial numbers
C019999 and below, see note and table that follow.) These procedures describe how to make adjustments to the
specifications listed below.
NOTE. Only probes with serial numbers C020000 and above have internal adjustments. (See Table 14.) Probes with serial
numbers C019999 and below that require adjustments (other than offset zero) must be returned to Tektronix for service.
Table 14: THDP & TMDP Series probe adjustments
Specification Adjustment method u sed Probe serial n um ber
Offset zero
External; user probe controls All serial numbers
Gain accuracy Internal; adjustments on PCB Serial numbers C020000 and above
DC CMRR Internal; adjustments on PCB Serial numbers C020000 and above
LF compensation
Internal; adjustments on PCB Serial numbers C020000 and above
AC CMRR Internal; adjustments on PCB Serial numbers C020000 and above
NOTE. The adjustments in the probes are preset at the factory for best overall performance. However, you may follow these
procedures to check the probe characteristics and optimize them if necessary.
WARNING. These procedures require you to remove a reusable label from the back of the probe. Yo u must replace
the label after you complete the probe adjustments. Failure to do so may subject the user to high voltages present in
the probe during measurements.
39 THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual
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