Manual

144 GMC-I Messtechnik GmbH
17.3 Step types in a sequence
The various sequence steps are offered in order to create a test sequence. They depend on the connected test device and the
selected sequence type (device/IZY sequence). The sequence steps can be divided into the following types:
Measurements (analyzed automatically)
These sequence steps are measurements that run on the test device. They require one or several thresholds. The measurement can be
analyzed automatically by comparing the measured values with these thresholds. This step type can be used in device sequences and
in IZY sequences with a connected test device.
User-analyzed measurements
Like measurements with automatic analysis, the measurements run on the test device in these sequence steps. However, they do not
require thresholds, as the user conducts analysis at the end. This sequence step can also be used in device sequences and in IZY
sequences with a connected test device.
Manual input
This sequence step does not require a test device. An input screen is created in which the measurement task is described and a field
is shown for manual entry of the measured value. The measured value can be analyzed automatically by configuring the sequence step
with a threshold and an analysis criterion. This sequence step can only be used in IZY sequences.
Checks
This sequence step can be used to conduct checks in the connected test device that require a positive result in order to progress to
the following steps. The next step will not be executed in the case of a negative result. However, users can configure manual skip or
repeat check functions. The sequence step can be used in device sequences and in IZY sequences with a connected test device.
– Probe check for probe connector P1: Please perform a probe check after each test.
If probe P1 is used in a test sequence, it is imperative that a test step „probe check“ with PROBE: „Probe connector P1“ be per-
formed in the corresponding test sequence. Background: In addition to assuring that a probe is connected to probe connector P1,
the probe check verifies at connector P1 as to whether the probe fuse is in faultless condition.
– Fuse check AP* (for test instruments with application part jacks)
If the AP jacks are used in a test sequence (regardless of whether the connections are used for measuring or for implementing test
condition „AP > PE“ (application part to earth)), it is necessary to perform an additional test step „fuse check AP“ for verification
purposes. This test step is to ensure that the two AP fuses are faultless.
Attention!
Please observe the operating instructions of the respective test instrument.
Attention!
If there is a fuse defect in test probe P1 after having started the test, all
subsequent measurements which are performed with this measurement
path are erroneously rated as good!
Attention!
Performing measurements for which AP connections are used, while one
or both AP fuses are faulty, may lead to incorrect measured values.