GE DS200TCEAG1BSF Gas monitor

The waveforms shall be verified according to this procedure at least once per shift. If ESD stress testing is performed in consecutive shifts, waveform checks at the end of one shift may also serve as the initial check for the following shift. Longer periods between waveform checks may be used if no changes in waveforms are observed for several consecutive checks. Simpler waveform checks (Section 5.5.2) may be used with longer period between waveform checks as described in this section. For example, Section 5.5.2 tests may be done daily with tests according to Section 5.5.1 done monthly. The test frequency and method chosen shall be documented. If at any time the waveforms no longer meet the specified limits, all ESD stress test data collected subsequent to the previous satisfactory waveform check shall be marked invalid and shall not be used for classification.

If the tester has multiple pulse generation circuits

then the waveform for each pulse generation circuit shall be verified with a positive clamp socket test fixture board. The recommended time period between verification tests is once per shift. However, a rotational method of verification may be used to ensure all pulse generation circuits are functioning properly. For instance, on day 1, pulse generation circuit 1 would be tested. On day 2, pulse generation circuit 2 would be tested and on day 3, pulse generation circuit 3 would be tested, until all circuits have been tested, at which time circuit 1 would again be tested. The recommended maximum interval between tests of any one pulse generator is two weeks. However, if a pulse generation circuit fails, then all ESD stress tests subsequent to the previous satisfactory waveform check of that pulse generation circuit shall be marked invalid and shall not be used for classification.

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