APT3500 Smart Pressure Transmitter
Operation Manual M3500-EO1G
67 DUON System Co., Ltd.
APPENDIX III
Special Condition for Safe Use
INSTALLATION
ATEX
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Line connection method and length should be suitable for the corresponding
flameproof specification.
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Power approved to Transmitter should not exceed rating.
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To avoid problems that may occur in power connection to Transmitter, the
backward diode was used. However, in the event of power connection to
wrong place, the backward diode may lose its function.
[Connection of backward diode]
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Parts connected to Transmitter additionally should definitely obtain
authorization on regional classification and gas classification.
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Cable entrance device should obtain certification for pressure-resistance and
flameproof, and be suitable for working condition.
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Unused wire connection should be blocked properly with plugs.
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Housing ground should always follow “Local Electrical Codes”. The most
efficient grounding is direct connection to earth with minimal impedance.