MODEL 54eA | SECTION 3.0 |
| WIRING |
SECTION 3.0
WIRING
NOTE
The Model 54eA analyzer leaves the factory configured for use with the Model 499ADO sensor (ppm dissolved oxygen). If a 499ADO sensor is NOT being used, turn to Section 5.5 and con- figure the transmitter for the desired measurement (ppb oxygen, oxygen measured using a
Be sure to turn off power to the analyzer before wiring the sensor.
3.1 GENERAL
WARNING
Electrical installation must conform to the National Electrical Code, all state and local codes, and all plant codes and standards for electrical equipment. Electrical installation and wiring must be done by qualified personnel.
The five holes in the bottom of the instrument case accept
3.2 POWER, ALARM, AND OUTPUT WIRING
Refer to Figure
DANGER
Live voltages may be present.
Will cause severe injury or death.
Alarm contacts are dry (i.e., not powered) and are normally open. Refer to Section 1.0 for relay specifications.
For best EMI/RFI protection, shield the output cable and enclose it in an
Keep sensor and output signal wiring separate from power wiring. Do no run sensor and power cables in the same conduit or close together in a cable tray.
AC wiring must be 14 gauge or greater. Be sure to connect earth ground from the power cable to the nearby ground lug. A good earth ground is necessary for proper operation of the controller. Provide a switch or breaker to disconnect the analyzer from the main power supply. Install the switch or breaker near the analyzer and label it as the disconnecting device.
WARNING: RISK OF ELECTRICAL SHOCK
AC connections and grounding must comply with UL 508 or local electrical code. DO NOT apply power to the analyzer until all electrical connections are verified and secure.
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