Annual maintenance of control and instrumentation systems at PRPD for the year 2022 and 2023

Amount

Dismantling and blanking, transportation, cleaning, calibration, reassembling and testing, reinstallation and streaming in back to process of Pressure Gauges and Switches

Dismantling and blanking, transportation, cleaning, calibration, reassembling and testing, reinstallation and streaming in back to process of Flow Indicator

Dismantling and blanking, transportation, cleaning, calibration, reassembling and testing, reinstallation and streaming in back to process of Level Switches and Sensor.

Dismantling and blanking, transportation, cleaning, calibration, reassembling and testing, reinstallation and streaming in back to process of Panel Indicator

Dismantling and blanking, transportation, cleaning, calibration, reassembling and testing, reinstallation and streaming in back to process of Conductivity Sensor and Indicator

Dismantling and blanking, transportation, cleaning, calibration, reassembling and testing, reinstallation and streaming in back to process of Temperature Sensor and Indicator

Dismantling and blanking, transportation, cleaning, calibration, reassembling and testing, reinstallation and streaming in back to process of Side Glass Indicator

Dismantling and blanking, transportation, cleaning, calibration, reassembling and testing, reinstallation and streaming in back to process of Pressure, Level, Flow, Temperature and Humidity Transmitters

Dismantling and blanking, transportation, cleaning, calibration, reassembling and testing, reinstallation and streaming in back to process of Turbine Flow meter, Magnetic Flow meter, Mass Flow meter, Screw type Flow meter, Rotameters

Trouble shooting, Diagnosis , Rectification, Replacement of faulty cards/components Testing /calibration and evaluation of Pressure, Level, flow and Temperature Transmitters.

Trouble shooting, Diagnosis , Rectification, Replacement of faulty cards/components Testing /calibration and evaluation of Pressure, Level, Flow and Temperature Switches.

Trouble shooting, Diagnosis , Rectification, Replacement of faulty cards/components Testing /calibration and evaluation of Pressure Gauges.

Trouble shooting, Diagnosis , Rectification, Replacement of faulty cards/components Testing /calibration and evaluation of Solenoid valve

Trouble shooting, Diagnosis , Rectification, Replacement of faulty cards/components Testing /calibration and evaluation of Pressure Regulating Valve and Filter Regulating cum Lubrication unit

Replacement / and laying of SS tubes involving cutting, debburing, bending & swaging of ferrules up to tubes of ½” OD (labour cost only)

Functional Testing, Leak testing, Replacement of faulty O-rings, solenoid coils of pneumatic and hydraulic manipulator blocks

Functional testing, tuning / alignment, repair / replacement of limit switches of Motor operated valves

Replacement of faulty Instrument Isolation Valves and 3-way manifolds

Laying of perforated GI cable trays for signal cables and control cables up to 150x100mm size (Labour cost only)

Laying of Signal cables and Control Cables up to 37 core (Labour cost only)

Fabrication of Single sided PCB Which includes Layout, Cutting of PCB laminates, Plating, Cleaning etc.

Fabrication of Double sided PCB Which includes Layout, Cutting of PCB laminates, Plating, Cleaning etc.

Periodic monitoring, testing and calibration of Electronics Cards. Making test setup with test equipment, like, meters, power supplies, current, voltage, frequency generators etc. for testing and troubleshooting of various types of electronic cards/modules. Wiring of test consoles (with data acquisition) and its reconfiguration for different types of tests/experiments. Preparation drawings and reports.

Troubleshooting and testing of various power supplies (including proprietory ones) and make it conform to design requirements after performing minimum acceptce tests. Involves preparation of test setup, reverse engineering, fault tracing, rectification, testing and periodic moitoring of Power Supplies to generated data for condition based maintenance.

Cleaning, Trouble shooting, fault rectification, checking of inter-lock and control relay logics at Main/Local control panels of control & instrumentation systems.

Assembly of electronic components on electronic cards/PCBs involving soldering, de-soldering final cleaning and masking etc.

Preparation of panels for assembly of cards involving installation of electronic bins, soldering of connectors, bin level wiring , dressing, glanding, termination etc.

Installation of switches, lamps, Push button switches, meters/indicators, terminal blocks etc including internal wiring, glanding and termination.

Simulation and Calibration of all process parameters in various plant systems involving simulation of analog inputs and digital inputs form field, tuning/calibration at control panels and validation of parameters to its corresponding range of engineering units at DAS

Maintenance of Junction boxes involving cleaning, tightining of screwed terminal blocks at required torque, circular connectors, Glands , visual inspection of soldered terminals & required soldering for terminals etc.

Periodical Cleaning and painting of outdoor cable trays, instrument mounting structures and supports

Maintenance and troubleshooting of Network systems,Involving crimping of RJ45 connectors,splicing of OFC cable,rectification of power supplies,installation of temporary network , software installation and code development for web servers.

Maintenance of physical protection system involving periodic cleaning painting healthiness check of ACS,Surveillance of CCTV Camera, DAS, GTMS & CTAMS.

Maintenance of Fire Detection and Alarm system, Public Address System, involving troubleshooting of fault, periodic cleaning and testing of the systems

E.KRISHNAN