Adjustment Procedure; Introduction; Test Equipment Required - LeCroy ZS1000 Instruction Manual

Adjustment Procedure

8 Adjustment Procedure

INTRODUCTION

You can use this procedure to adjust the ZS1000 probe to meet the war-
ranted specifications. This procedure should only be performed if the
probe fails to meet the Performance verification tests for Output Zero or
Offset Accuracy.
Gain which affects LF attenuation accuracy cannot be adjusted during
routine calibration. Probes which fail LF frequency accuracy during per-
formance verification must be returned to the factory for rework.
If the probe cannot be adjusted to meet the Performance verification lim-
its, repair may be necessary.
To assure probe accuracy, check the calibration of the ZS1000 every
1000 hours or once a year if used infrequently. Before calibration, thor-
oughly clean and inspect the probe as outlined in the Care and Mainte-
nance section.
To assure the probe will meet the published specifications over the
entire temperature range, adjustment must be performed in a controlled
ambient environment with temperature of 23 °C ±5 °C.
Caution
The adjustment procedure will require removal of the probe control cir-
cuit cover. This cover is part of the ESD protection system of the
ZS1000. To protect the probe, you should perform the entire procedure
on a static dissipating work surface. Wear an antistatic wrist strap and
follow standard static control procedures.

TEST EQUIPMENT REQUIRED

Table 8-1 lists the test equipment and accessories (or their equivalents)
that are required for complete calibration of the ZS1000 Probe. Specifi-
cations given for the test equipment are the minimum necessary for
accurate calibration. All test equipment is assumed to be correctly cali-
brated and operating within the specification listed. Detailed operating
8–1
ZS1000-OM-E Rev C