Emerson Process Management instruction manual Section Wiring Model TF396

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MODEL TF396

SECTION 3.0

 

WIRING - MODEL TF396

SECTION 3.0

WIRING — MODEL TF396

Figures in this section provide the guidelines for wiring the TF396 sensor to various analyzers/transmitters.

To determine which wiring guideline to use, locate the model number of the analyzer/transmitter to be installed.

1.If the cable needs to be extended (maximum distance from sensor to analyzer is 250 ft), use a high quality eleven conductor double shielded instrument cable available from Rosemount Analytical.

NOTE

If the cable is too long, loop up the excess cable. If the cable has to be shortened, cut and terminate each conductor neatly and make sure that the overall (outermost) drain wire is not shorted out with either of the two inner drain wires (shields).

2.Signal cable should be run in a dedicated conduit (preferably an earth grounded metallic conduit) and should be kept away from AC power lines. For your convenience, a wire nut kit is furnished (in a plastic bag wrapped around the cable).

NOTE

For maximum EMI/RFI protection when wiring from the sensor to the junction box, the outer braid of the sensor should be connected to the outer braided shield of the extension cable. The outer braid of the extension cable to the instrument must be terminated at earth ground or by using an appropriate metal cable gland fitting that provides a secure connection to the instrument cable.

Wiring. The Model TF396 has a mating cable with built-in preamplifier and is offered with a shielded cable. The cable should be handled carefully and kept dry and free of corrosive chemicals at all times. Extreme care should be used to prevent it from being twisted, damaged or scraped by rough, sharp edges or surfaces. Please refer to Figures 3-1 through 3-3 for wiring Model TF396.

DANGER

DO NOT CONNECT SENSOR CABLE TO POWER LINES. SERIOUS INJURY MAY RESULT.

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Contents Combination pH Sensor Hazardous Area Installation Essential InstructionsModel TF396 List of Figures Number TitleList of Tables Section Description and Specifications Features and ApplicationsMinimum Process Conductivity 75 µS/cm nominal 100 µS/cm Accessories First Time Installation Guide Ordering InformationSection Installation Unpacking and InspectionMounting Flow Through and Insertion Mounting4TF39604 B 40396P05 4TF39603 Jet Spray Cleaner PN LOW Flow Cell PNSection Wiring Model TF396 41055102 40508114 Instrument Configuration for USE with Model TF396 Recommended two-point buffer calibration procedureSection Start UP and Calibration Sensor PreparationSection Maintenance Automatic Temperature CompensatorElectrode Cleaning Ro and R1 Values for Temperature Compensation ElementsWarranty Repair NON-WARRANTY RepairSection Return of Material GeneralReturn of Materials Request Sensor or Circuit Board onlyWarranty Return of MaterialSpecifications subject to change without notice