Polatrak DEEP C METER 3000 Operation Manual Download | Manualshive

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CORROSION TESTING PROBE

Deepwater Corrosion Services Inc.

polatrak.com

|

+1 (713) 983 7117

|

Email: [email protected]

©2016 Deepwater Corrosion Services Inc. Specifications subject to change without notice

DEEP C METER 3000™

ROV-MOUNTED CP PROBE

OPERATION MANUAL

ROV-interfaced

cathodic protection

monitoring system

Rated for

depths up to

3,000 meters

Powered by

two nine-volt

batteries

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2
3
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Summary of Contents for DEEP C METER 3000

Page 1: ...ail sales stoprust com 2016 Deepwater Corrosion Services Inc Specifications subject to change without notice DEEP C METER 3000 ROV MOUNTED CP PROBE OPERATION MANUAL ROV interfaced cathodic protection monitoring system Rated for depths up to 3 000 meters Powered by two nine volt batteries ...

Page 2: ...components 6 5 1 Main body 6 5 2 Nose cone 6 5 3 Main body section 6 5 4 Tail unit 7 5 5 Reference electrode element 7 5 6 ROV II probe T handle mount 7 5 7 Flying lead 7 6 Spare parts and accessories 8 7 Calibration 8 7 1 Bucket calibration procedure 8 7 2 Underwater online calibration 9 8 Operation 9 9 Mounting on ROV 9 10 Taking CP potential readings 10 11 Data interpretation 11 12 Maintenance ...

Page 3: ...nges for bare carbon steel in seawater 10 Table 2 Troubleshooting quick guide 14 Table 3 List of spare parts 15 1 Overview The Deep C Meter 3000 is a complete ROV interfaced cathodic protection monitoring system The system has three basic parts The readout unit which is twin voltmeters housed in a stainless steel pressure housing The probe a twin element tip contact CP probe Polatrak model ROV II ...

Page 4: ...ut in a safe manner in accordance with the Health and Safety At Work Act and any other relevant legislation If required by the client Deepwater personnel will attend any site safety induction courses before carrying out work on site 4 Voltage readout unit components The readout unit has two major sub assemblies The pressure housing and the probe unit 4 1 Pressure housing 4 1 1 Housing body The pre...

Page 5: ... be in place whenever the mating connector is removed 4 1 4 Voltmeter module The voltmeter module is located within the pressure housing The voltmeter module contains two independent 3 digit LED voltmeters Default factory range is 1999 mV DC on both readouts A 9V alkaline battery powers each of the readouts On the face of the module is a photocell that switches each measurement circuit on when exp...

Page 6: ...e tail unit which houses the reference electrode female plugs and the connection cable with strain relief the reference electrode elements the compliant tee handle mount for manipulator mounting and the flying lead connection back to the readout unit 5 2 Nose cone 5 2 1 The nose cone assembly is screwed into the main body section The cone houses the replaceable contact tip and also has the female ...

Page 7: ...lectrodes 5 5 Reference electrode elements 5 5 1 Two plug in sintered silver silver chloride elements are included electrode elements are accurate to 5 mV See the operations and maintenance section for instructions on electrode replacement CAUTION Never handle electrode elements with bare hands or expose elements to any liquid other than water permanent damage may result 5 6 ROV II probe compliant...

Page 8: ... 9 Lens O ring 4 7 0 Calibration 7 1 Bucket calibration procedure 7 1 1 Fill a non metallic bucket or container with enough seawater or simulated seawater to completely submerge the probe unit 7 1 2 Place the probe in the bucket with the tip pointing up so the body fills with seawater The entire probe must be immersed including the tip 7 1 3 Clean the zinc coupon with a file or sandpaper to remove...

Page 9: ...adings are not within 10 mV the probe unit is out of calibration The survey can continue until the ROV can be brought back to the surface if both readings are recorded 8 0 Operation 8 1 Mounting on ROV 8 1 1 Find a good location on the vehicle to mount the display unit and attach the articulated mount Typically the display unit should be in view at the same time as the probe unit to maximize effic...

Page 10: ...e 8 1 9 Ensure that the tip is sharp 8 1 10 Remove the lens cover from the instrument 9 0 Taking CP potential readings 9 1 Stab the tip contact probe onto the point on the structure where the reading is required when a good contact is made the reading on the displays will show a steady reading CAUTIONS Avoid stabbing painted or coated surfaces whenever possible Try to take readings on bare steel o...

Page 11: ...tive Error Remake contact verify Measure two other points around the component 10 2 Removal from ROV 10 2 1 When equipment is removed from the ROV wash thoroughly with fresh water and allow to dry Soak the ROV II probe unit in fresh water for at least one hour Replace lens cover on Deep C Meter and return to storage case provided Note For brackish or fresh water please consult Peterson s Nomogram ...

Page 12: ...ry sharp point to enable easier readings through coatings This point can also easily cut or poke through human skin Please handle with care 11 3 Electrode element replacement 11 3 1 Remove the probe unit from the ROV and un mate the connector Install the blank plug provided onto the exposed flying lead connector Next determine which element is bad 11 3 2 Perform a bucket calibration described in s...

Page 13: ...careful not to cover the copper pin Please refer to the MSDS in appendix before handling sealant All appropriate Personal Protective Equipment PPE shall be worn including safety glasses and gloves as a minimum 11 3 11 Plug the new electrode into the connector 11 3 12 Check that all connectors are fully mated then carefully put the electrodes back into the housing and re attach the tail unit and no...

Page 14: ...e of the lens and the inner groove closest to the internal surface of the lens The inner groove is designed for one round O ring to be seated next to one backup ring square cross section The outer groove contains a single round O ring 11 4 10 Replace all O rings and backup rings NEVER REUSE O RINGS 11 4 11 Make sure new O rings are properly installed and seated confirm that the backup ring is not ...

Page 15: ... nose cone Readings are not steady and continue to change Batteries are low Replace batteries Poor structure contact Re stab to ensure contact One reading suddenly goes less negative Connector is flooded Check connectors Lead wire flying lead is nicked Inspect and repair replace as necessary Displays are blank Not enough light to photocell Increase light intensity and re direct to center of lens B...

Page 16: ...ion Required Spares DCM0003 3000 Pressure housing 1 0 DCM0001 Meter mount 1 0 MLT0014 Lens 1 0 GSK0009 Lens O Ring 2 4 GSK0008 Lens backup ring 1 2 FAS0104 Lens retaining screw 4 1 MFR0015 Lens cover 1 0 UWC0003 Bulkhead connector 1 0 UWC0019 Bulkhead dummy plug 1 0 ROV0016 ROV II probe nose assembly 1 0 ROV0004 Contact tip 1 3 DCM0008 Main connector 1 0 MLT0045 Replaceable Silver Silver chloride ...

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