SS2100 TDLAS H
2
S Gas Analyzer BA02191C
3-6 Endress+Hauser
Refer to Figure 1–5 on page 1–9, Figure 1–6 on page 1–11 and Figure 1–7 on
page 1–12 for the protective and chassis ground locations.
To connect electrical power to the H
2
S analyzer
1. Open the analyzer electronics enclosure door. Take care not to
disturb the electrical assembly inside.
2. Run conduit from the power distribution panel to the conduit hub on
the analyzer electronics enclosure labeled for power input.
3. Pull power wire and terminate on respective terminals. Refer to the
wiring diagrams in .
4. For AC systems, pull ground, neutral and hot wire into the
electronics enclosure.
For DC systems, pull ground, plus and minus wires.
5. Strip back the jacket and/or insulation of the wires just enough to
connect to the power terminal block.
6. For 120 VAC or 240 VAC single phase power connections, attach the
wires to the power terminal block by connecting the neutral wire to
the terminal marked “DT4” and the hot wire to the terminal marked
“L1,” as shown in Figure 3–2 on page 3–7. Connect the ground wire
to the safety ground terminal marked with the symbol.
Hazardous voltage and risk of electric shock. Failure to
properly ground the analyzer may create a high-voltage shock
hazard.
Conduit seals should be used where appropriate in compliance
with local regulations.
Because the breaker in the customer-provided power distribution
panel or switch will be the primary means of disconnecting the
power from the analyzer, the power distribution panel should be
located in close proximity to the equipment and within easy reach
of the operator, or within 10 feet of the analyzer.
An approved switch or circuit breaker rated for 15 amps should be
used and clearly marked as the disconnecting device for the
analyzer.
Connecting power to L1 also powers the solenoids, if included.
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