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This Policy is Under Development. If questions please contact Area Manger.
Purpose
Purpose
The purpose of this trouble-shooting guide is to assist you in the minimum requirements diagnosing Thermocouple probes on Flogistix compressor packages.
Procedure
Procedure
This procedure applies to all units that are currently in service in the field, at a repair shop, and in storage yards.
Before any work is performed a JSA must be completed according to Flogistix procedure along with any customer requirements before any work is started.
To properly diagnose thermocouple wires and Thermocouple Probes you must have an understanding how Thermocouple wire and Probes work.
A Thermocouple is an electric device consisting of two dissimilar conductors forming electrical junctions at differing temperatures.
A thermocouple produces a temperature-dependent voltage as a result of the thermoelectric effect, and this voltage can be interpreted to measure temperature.
There are two types of thermocouple wires that have been used in Flogistix panels, “J’ Type and “K” Type.
The current thermocouple being used in the LOGIX panel is the “K” type thermocouple wire.
The Flogistix panels that used the “J” Type thermocouples were some of the first LOGIX panels that were built.
Here are the differences between the "K" type and "J" type Thermocouples wires.
J Type: Red (-) & White (+) colored wires
Temperature range of -40 F to 750 F
K Type: Red (-) & Yellow (+) colored wires
Temperature range of -330 F to 2460 F
The correct thermocouple wire must be used for the type of panel being used. The PLC programing determines the type thermocouple.
If “J” Type thermocouples are used on Panels set up for “K” Type thermocouples the temperatures will read a higher temperature than the actual temperature being read.
If "K" type thermocouples are used on Panels set up for "J" Type thermocouples the temperatures will read a lower temperature than the actual temperature being read.
If the ends of the thermocouple wires are connected together on either “J” or “K” type thermocouples, they should read the ambient temperature at the point of where the end of the wires are located.
If a thermocouple circuit becomes an open circuit, the temperature will show a default temperature of 32,786 degrees on the touchscreen display.
If it is set to be a temperature shutdown it will give a fault for high temperature.
A good way to check this by going to the Trending feature on the display and look at the temperature. If the temperature goes from normal then goes straight to a high temperature its cause could be an open circuit
Responsibilities
Responsibilities
Management - Management is responsible for implementing, supporting, and enforcing the requirements of this procedure to their respective locations/area.
EHSS - Responsible to assist in the implementation of this procedure and to review for effectiveness.
Employees, Contractors, Vendors, ETC. - Are responsible to follow the following requirements outlined in this procedure and ask for assistance
Scope
Scope
Hazards
Hazards
Employees should be aware that units could contain flammable and toxic gasses. Potential for the possible hazards of gas ignition or fire, hot surfaces & fluids, rotating equipment. Risk of possible concentration of H2S. Hazardous gases could be in the units pressure vessels, cooler, or associated piping and risk of inhalation of hazardous gas fumes. Environmental spill of compressor oil and possible production fluids
Safety
Safety
All Personal Protective Equipment (PPE) for normal Field Mechanical duties apply for this procedure. Four Gas Monitor, which is outlined in the Flogistix EHSS Manual, PPE Section 8, Procedure 8.3 This procedure applies to all units in service in the field, at a service shop, or in any storage yard.
Insure Flogistix personnel have proper safety certification as required by the Flogistix Customer.
Insure Flogistix personnel adhere to all Customers safety practices.
Proper use of required tools
Spills and Disposal
Spills and Disposal
All spills shall be handled immediately according to MSDS recommendations and the employee's level of training
Flogistix Service Technicians performing this task will properly dispose of any waste liquids or solids. Disposal of any fluids or solid waste will be disposed of properly according to Flogistix policy. Disposal of any fluids will be done at an approved or designed waste location. Disposal of solid waste from a compressor shaft seal change such as, oily rags, ETC, will be disposed of according to the local regulations regarding the disposal of oil soaked rags.
Training
Training
All employees shall be initially trained on the following topics:
Employee Personal Protective Equipment (PPE)
Lock Out Tag Out (LOTO) procedure according to Flogistix policy
MSDS Online System
Emergency and First Aid procedures
Methods and Observations that may be used to detect the presence or release of a hazardous chemicals or gas in the work place
Tools & Equipment Required
All employees performing Preventative Maintenance shall be required to have the listed tools to perform job tasks:
All required PPE according to Flogistix Safety Policy
Lock Out Tag Out LOTO items to properly perform LOTO procedure according to Flogistix policy
Basic Hand Tools
Approvals
Field Service approved by:
Date:
Engineering approved by:
Date:
EHSS approved by:
Date:
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