Emerson 399VP, Combination pH/ORP Sensor instruction manual Section Wiring, Scl

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MODEL 399VP pH/ORP SENSOR

SECTION 3.0

 

WIRING

SECTION 3.0.

WIRING

Figures 3-2 thru 3-23 provide the diagrams for wiring the 399VP sensor to various analyzer/transmitters.

1.If the cable needs to be extended, use a high quali- ty cable available from Rosemount Analytical. Refer to Figures 3-2 through 3-23 for the appropriate junc- tion box part number and the corresponding wiring details.

NOTE

If the extension cable is too long, either loop up the excess cable or cut and terminate each conductor neatly. 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.

NOTE

When extending the mV signal from the sensor through a remote junction box to the analyzer, 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.

The Model 399VP is used with a Variopol coax 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, dam- aged or scraped by rough, sharp edges or surfaces.

DANGER

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

TABLE 3-1. Remote Junction Box and Extension Cable Part Numbers

 

Model

Remote Junction

Extension

 

 

 

Box PN

Cable PN

 

 

54

23555-00

9200273*

 

 

81

23555-00

9200273*

 

 

1003/1023

23309-03

9200000

 

 

1050/1060

23309-03

9200000

 

 

1054

23309-04

9200273*

 

 

1054A/B

23309-04

9200273*

 

 

1055

23555-00

9200273*

 

 

1181

23309-03

9200273*

 

 

2054

23309-04

9200273*

 

 

2081

23309-04

9200273*

 

 

3081/4081

23555-00

9200273*

 

 

SCL

 

 

2700

 

 

 

 

 

 

*Note that PN 9200273 is a raw cable. It can also be purchased with wires already prepared (PN 23646-01) for quicker installation.

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Contents Combination pH/ORP Sensor Hazardous Area Installation Essential InstructionsTable of Contents Model 399VP pH/ORP SensorList of Figures List of TablesPhysical Specifications Section Description and SpecificationsFeatures and Applications Graph A. Pressure/Temperature Limitations For Model 399VPMounting Accessories optional Ordering InformationMounting Section InstallationUnpacking and Inspection Mounting GuidelinesSensor Dimensions FLOW-THROUGH Installations Model 399VP Shown in Various Flow Through InstallationsInsertion Installations Model 399VP Shown in LOW Flow Cell Assembly PNSubmersion Installations Adapter PNSensor Shown in Handrail Mounting Assembly PN JET Spray Cleaner PN Used with Model 399VP Section Wiring SCLWire and Connector Pin Functions Model 54 Wiring Model 81 Wiring through Remote Junction Box 13. Model 1054 Wiring 17. Model SCL-P/Q Wiring 41055107 41055108 23. Preparation of Extension Cable PN Sensor Preparation Recommended two-point buffer calibration procedureSection START-UP and Calibration Recommended pH Sensor Standardization268 264 260 General Section MaintenanceAutomatic Temperature Compensator PH Electrode Cleaning ORP Platinum Electrode CheckSection Troubleshooting Problem Probable Cause RemedySection Return of Material GeneralReturn of Materials Request Sensor or Circuit Board onlyEUROPE, Middle EAST, and Africa Americas HeadquartersASIA-PACIFIC Additional Sales OfficesWarranty Specifications subject to change without notice