DATREND Systems ES601-US, Руководство по эксплуатации

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ES601-US OPERATING MANUAL
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An example of an isolated signal input/output would be a transformer-coupled data connection, for example,
an Ethernet communications port on the DUT.
Overview/Chapter 2
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Page 14
• performing tests with the DUT power switch in the "ON" position and also in the "OFF" position
(ON/OFF test conditions);
• applying mains supply voltage to isolated signal inputs/outputs
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on the DUT, or connecting such
isolated signals to ground (IOS/IOG test conditions), and;
• connecting floating (ungrounded) metal parts on the DUT to ground (ME test condition).
During the test, ES601-US measures the lead leakage for each NC or single-fault SF condition in
combination with all STC enabled by the user. For each NC or SF condition, ES601-US records the
maximum leakage observed and the STC that produced the maximum leakage.
Patient leakage tests can be performed manually, but may be complex and time consuming to set up,
particularly if there are a large number of patient leads or supplementary test conditions to specify. To save
you time, ES601-US allows you to program and save such setups as automated test sequences, which are
further described in Section 2.1.12.
2.1.9 Lead-to-Lead Leakage Current
In this test, sometimes called an "auxiliary leakage" test, ES601-US measures the current that flows out of
one patient lead, through the human body load, and into all the other patient leads shorted together. As with
all leakage tests, lead-to-lead leakage is measured in microamps, while simulating a variety of test conditions
at the DUT.
In addition to specifying the individual test cases, the lead-to-lead leakage measurement requires the kind of
patient leads tested to be classified as "B” - body, "BF” - body-floating or "CF” - cardiac-floating. This is
done through the Group setup as described in the preceding section. Up to ten patient leads can be
arbitrarily partitioned into the five Groups provided by the test setup.
When testing lead-to-lead leakage, ES601-US can be configured to record the following AC and DC values
for each patient lead defined in the test setup:
Normal Polarity Normal Condition
Single-Fault Condition, Neutral Open
Single-Fault Condition, Ground Open (NP:NORM. COND.)
(NP:OPEN NEUT.)
(NP:OPEN GND.)
Reverse Polarity Normal Condition
Single-Fault Condition, Neutral Open
Single-Fault Condition, Ground Open (RP:NORM. COND.)
(RP:OPEN NEUT.)
(RP:OPEN GND.)