Equipping the electronic bale laboratory at the enterprise. Topic analysis of the state of measurements of the laboratory of instrumentation and a

perform both independently from start to finish, and collectively, when a team of specialists is engaged in the repair and adjustment of equipment.

The main tasks of the instrumentation and control service:

Routine maintenance of instrumentation and automation and periodic checks of their serviceability;

Preparation of requests for the replacement of worn-out devices,

cartogram processing,

Accounting and certification of automation equipment;

Performing installation and commissioning work.

The structure of the instrumentation and A service

Depends on the equipment of the enterprise with instrumentation and automation. At large enterprises with a large number of instruments, the operation service and the metrological supervision service are separated into independent units subordinate to the chief engineer.

At enterprises with medium automation equipment, an instrumentation and control workshop is organized, subordinate to the chief engineer of the enterprise. In addition, automation groups can be created in production workshops, the technical management of which is carried out by the instrumentation and A workshop. At enterprises with a low degree of automation, an instrumentation and A group is created at the department of the chief power engineer, instrumentation is serviced by workshop operation groups, and metrological supervision is carried out by specialized third-party organizations .

The I&C service should be equipped with:

Control devices and portable installations for testing and adjustment of instrumentation and automation;

Stands equipped with control devices for checking working devices and setting up automation equipment;

Materials and instructions for planned preventive and

capital repairs of instruments and equipment of automation systems.

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PP06 AT131.X1014 OS

1.3 The main tasks and structure of the site, laboratories-places of practice.

The main tasks of the instrumentation and automation laboratories at JSC NeFaz are to overhaul factory measuring instruments with their subsequent delivery for verification or calibration.

Instrumentation and control laboratories are part of the Central Laboratory of the CLM of NeFaz OJSC, headed by the chief metrologist - head of the CLM. Structurally, the TsLM is part of the USC Quality Service Management

The I&C laboratories include:

Laboratory for the repair and calibration of thermotechnical measuring instruments manometers, thermometers, TsRT-532 temperature controller, TRM-201 measuring temperature controller,

Laboratory for the repair and calibration of measuring instruments for electrical quantities ammeters, voltmeters, wattmeters, varmeters

Laboratory for the repair and calibration of flow and level measuring instruments gas and water meters, flow meters, level gauges, diphtonometers.

The Instrumentation and Control Department performs the most important work, such as the repair and verification of instruments, the operation of complex automation systems, etc. In addition, it conducts departmental metrological supervision of measuring equipment. Introduces new automation systems, carries out technical management of instrumentation and instrumentation operation groups in other workshops of the enterprise, organizes technical training for workers and engineers of the operation service.

The head of the shop is in charge of the instrumentation and control shop, and his deputies are the heads of the sections. As part of the administrative and economic group of the shop there is a warehouse of instruments (reserve and received for repair), spare parts, materials, as well as employees of accounting and time records and a rationing manager.

The operation site is headed by an engineer for the operation of instrumentation and A. The staff of the site consists of on-duty instrument fitters and electricians. As part of the staff on duty, there are groups for servicing automation systems and in production workshops, as well as operation groups by types of automation systems. At woodworking enterprises, the operating area is usually divided into groups: operation of automatic lines; operation of technological devices and control systems; operation of HDTV installations.

The area for repair and verification is usually called the laboratory of instrumentation and A. The laboratory performs preventive maintenance of instrumentation and A, repairs and verification of measuring instruments, mounts new instruments and automation systems, and performs electrical measurements. In the laboratory, there are groups specialized by type of work, and groups servicing instruments and automation systems. At woodworking enterprises in the laboratory, the following groups are distinguished: electric automatics; measuring instruments and regulators; electrical appliances; electrical measurements; heat engineering and technological devices; and locksmith-mechanical group.

The electroautomatics group repairs control systems for automatic lines, HDTV equipment, debugs new equipment. The group of measuring instruments and regulators carries out work on the preventive maintenance, repair and verification (according to the registration certificate) of instruments, prepares instruments and participates in state verification, and also manufactures new instruments and participates in the introduction and development of new equipment. This group should be staffed with specialists in various types of instruments - pyrometers, pressure gauges, flow meters, electrical measuring instruments, etc. With a large number of control and measuring instruments (technological, thermal engineering, electrical measuring, etc.) at the enterprise, the group may have a deeper differentiation by types of instruments. For example, teams (or units) for maintenance of manometric, pyrometric, electrical measuring instruments, flow meters, etc. can be allocated as part of a group.

The measurement group tests transformers, electrical wiring insulation, ground resistance, personal protective equipment against electric shock, illumination, etc.

The locksmith-mechanical group manufactures parts for devices and assembles automation systems. Work areas of operation, as well as workshop groups of automation, may be involved in repair and installation work.

The section of departmental supervision is headed by an engineer-metrologist. The main tasks of the site are: accounting and certification of measuring instruments located at the enterprise; development of verification schedules and provision of up-to-date presentation of instruments for state and departmental verification; conclusion of contracts with the bodies of metrological state supervision for the implementation of work on the supervision of measuring instruments (verification, repair); withdrawal from circulation of unusable devices; identifying the needs of production in measuring and control technology, processing applications and introducing new technology.

The metrology engineer has in his subordination technicians for accounting measuring instruments and maintaining technical documentation. In addition, the metrology engineer provides technical guidance to the work of the laboratory for the verification and repair of instruments. With a large amount of calibration work at the enterprise, a calibration laboratory can be organized (with the allocation of groups in it by type of instrument), subordinate to the metrologist.

The technical group includes engineers and technicians reporting directly to the head of the instrumentation and A department. The group develops projects for the automation of small process facilities, modernization of existing systems, develops new devices, and also provides technical supervision for installation and commissioning work performed by third parties.

The shop operation groups are subordinate to the head of the production shop in the administrative line, while the technical management of the groups is carried out by the head of the shop (service) of instrumentation and A. The group is led by an automation master. The group consists of electricians who maintain electrical equipment and automation systems in the workshop. In workshops that have a high degree of equipment with control and regulation devices, instrument fitters may be included in the maintenance group.

Workshop operation groups carry out technical supervision of instrumentation and automation. Troubleshoot and carry out routine repairs of automation systems. Repair, verification and installation of new devices and automation systems is carried out by the instrumentation and control workshop in accordance with the schedules and at the request of the technological workshops.

The staff of the instrumentation and A shop depends on the scope of work, the structure and specifics of the enterprise. At woodworking enterprises, the staff of the instrumentation and A shop is 15 ... 25 people. The number of engineers is 4 ... 6 people, including engineers: the head of the shop, the heads of the sections (foremen), the metrology engineer, the engineer for new technology, the instrument accounting technicians and the design technician. Support staff 1 ... 3 people (planner, accountant, standardizer, etc.).

Subject: Analysis of the state of measurements of the instrumentation and A laboratory at Ulan-Ude CHPP-2 Performed by: Bondarev Denis Nikolaevich Supervisor: Khamkhanova Darima Nimbuevna

Comments to ND regarding the reflection in the Proposal for the revision or it of means and methods of control for an additional increase (measurements) of the quality parameters of the requirements of individual items of products, metrological rules and ND norms No. (code) of the document Name ND 1 2 3 4 GOST R 543162011 National standard Russian Federation. Mineral natural drinking water. General specifications - Not required

Name of the methodology and scope Code and name of the ND regulating the methodology Comments on the current methodology Proposals for improving the methodology or conducting semetrological studies 1 2 3 4 5 RD-153-34. 1-27. 301 -2001 No comments - Testing laboratory of the PTO mode group Methodology for measuring the mass fraction of oil products in soil and soil samples by the fluorimetric method using the analyzer "Fluorat 02" MU 2293 -81; PNDF 16. 1: 2. 21 -98 No comments - FBUZ "Center for Hygiene and Epidemiology in the Republic of Belarus" Methodology for performing measurements r. H in waters by the potentiometric method; methodology for measuring the mass concentration of sulfate ions in samples of natural and waste water; methodology for measuring the mass concentration of chloride ions in drinking, surface and waste waters; method for measuring the content of suspended solids and the total content of impurities in samples of natural and treated wastewater. PNDF 14.1:2:3:4.121 -97 PNDF 14.1:2.159 -2000 PNDF 14.1:2.4.111 -97 PNDF 14.1:2.96 -97 PNDF 14.1 : 2.110 -97 PNDF 14.1:2:4.168 -2000 PNDF 14.1:2:4.50 -96 PNDF 14.1:2:3:4.179 -2002 RD 52.24.496 -2005 GOST R 51592 -2000 - Laboratory for the analysis of wastewater from the chemical workshop of the Ulan-Ude CHPP -2 No comments Proposed work executor

Parameters of parts, assemblies, Name of products, production and technological section, (process, processes, finished product, product technology (with their name), equipment) controlled by measurements 1 Measurement requirements Measurement range Add. Uncertainty of the requirements of measurements to the performance (accuracy class) of measurements Characteristics, according to RD, Actual. The name of the measuring instrument The need to determine the position of the measuring instrument does not meet the measuring instruments that meet the specified requirements with the measurement of the requirements in column 10 for the accuracy of the parameters column 4, 5, 6 measurement requirements for measurements (tests, control) 2 3 4 5 6 7 8 9 10 Steam temperature behind the boiler (0 -300) °C 0.5 Every 2 hours - 24 hours KSP-2 4 Steam temperature behind the GPP (0 -300) °C 0.5 Every 2 hours - 24 hours Checkpoint-1 KSP-2 4 0, 5 Every 2 hours - 24 hours RP-160 4 - 24 hours KSU-2 RP-160 4 Water temperature in drain pipes Boiler No. 1 Boiler No. 2 Boiler No. 3 Boiler No. 4 Steam consumption behind the boiler (0 -300) °С (0 -220) t/h Feed water consumption (0 -200) t/h 0.5 Every 2 hours Continuous blowdown flow (0 -8) t/h h 0.5 Every 2 hours - 24 hours RP-160 4 0.5 Every 2 hours - 24 hours KSU-2 RP-160 4 Steam pressure in the drum (0 -4) m. Pa

Specifications of products subject to ND testing, regulating the test procedure (code, name) Requirements for testing equipment in ND (reproduction range of modes and test conditions). Accuracy characteristics 1 2 3 Water temperature 91°С 0 -100°С - (-50)-180°С ± 0.5°С Type and technical characteristics of the test means used. Availability Test equipment that meets the requirements of RD (name, type) Need for additional equipment for testing equipment 4 5 6 Resistance thermometer ТСМ Requires resistance ТСМ 50 M additional 50 M meets 2 pcs 0 -180°С ND requirements 2 pcs in stock

Characteristics of emissions Actual position with measurements Name of the technological process or measurement of production Methodology Name of the content Emission standard of the th site, (means) of the harmful substance of the workshop. Measurement point. The type of substance by or by whom approved the substance selection. of the applied SI technical document Component composition of the sample 1 Pool of clarified water (waste water) 2 Chlorides Sulfates Iron 3 4 300 100 0, 1 weighted background +0. 25 fluorine 0.05 5 spectrophotometer balance laboratory. electron. , Measuring range Harmful attestation status Accuracy Periodic method (yes, no). Code and Substances The term of the measurement is the name of the RD, according to certification. the content of the implementation of the defining methodology. Established harmful measurement requirements for the Limit value of the substance according to (according to the measurements and the error of the method plan) the content of the measurements of the components s 6 PNDF 14. 1: 2. 11097; PNDF 14. 1: 2. 1592000; PNDF 14. 1: 2: 4. 1682000; 7 8 178.19 9 10 ± 0.5% 98.67 0.045 PNDF 14.1: 2.96-97; 3, 08 PNDF 14. 1: 2. 50 -96; 0, 049 drying cabinet Laboratory for the analysis of chemical wastewater once per workshop certificate of attestation No. 97-12 dated 03.07.2012, valid until 03.07.2015

Number of MS, people, including engineers Name of specialized subdivisions of MS Date of approval of the Regulations on MS of Verifiers Workers Total number of SI at the enterprise Types of work performed by other services Available 1 Generation of Buryatia UUTETS-2 2 January 27, 2011 g Additional required Available Additional required 3 4 5 6 7 8 9 10 161 Master Engineer One metrologist verifier 1 2 1 -

No. Type of measurements 1 2 1 Information about the presence of a license of the State Standard of the Russian Federation for the right Organization that carries out repair, verification (calibration) of measuring instruments Enterprise, verification (calibration) of measuring instruments (MS) Number and date Number of the enterprise, organization that repairs the certificate of those being verified Nomenclature of measuring instruments of the State Standard, base organization MS accreditation measuring instruments, by whom (calibrated) or etc.) issued, the period of repaired measuring instruments of validity 3 4 5 6 7 Pressure and vacuum measurements 2 Pressure and vacuum measurements 22 Exemplary pressure gauge MO 1227 1 Deadweight piston pressure gauge MP-60 104 FGU "Buryat Center for Standardization , metrology and certification” 9 Pressure measurements RP-160, KSU-2, KPU 140 41 Level measurement RP-160, KPU 140, KP 140 Ulan-Ude CHPP-2 Instrumentation and A laboratory Pressure and vacuum measurements Ulan-Ude CHPP-2 Laboratory of instrumentation and A 23 Measurements, flow, capacity, level, flow parameters No. 34 -3. 69/2 -07 Ulan-Ude CHPP-2 From January 27, 2011 Instrumentation and Control Laboratory Valid until January 27, 2016

Proposals for the main claims to the number of elimination Plant. Year of workmanship and SI for shortcomings and the manufacturer of the release of a technical enterprise to improve the quality of the characteristics of SI No. pp. MI name, type, factory designation Accuracy class ND measurement range on MI 1 2 3 4 5 6 7 8 9 10 1 KSP-2 0.5 0 -300°C 0 -600°C GOST 8, 280 -78 1992 36 Obsolete Replacement with new generation devices GOST 8, 280 -78 1992 80 Obsolete Replacement with new generation devices 2 KSM-2 0.5 0 -100°С 0 -180°С 0 -200°С (-50)-100°С 3 KSU-2 0.5 0 -5 m. A GOST 8, 280 -78 1991 54 Obsolete Replacement with new generation devices 4 RP-160 0.5 0 -5 m. A 0 -200°C 0 -300°C GOST 8, 280 -78 1994 63 Obsolete Replacement with new generation devices 6 KPU-140 0.5 0 -5 m. A 0 -200°С 21 B-TO. E 1989 82 Obsolete Replacement with new generation devices 7 KP-140 0.5 0 -5 m. A 21 B-TO. E 1993 10 Obsolete Replacement with new generation devices

Item No. SI name, type, factory designation GOST, TU for SI Manufacturer Available Available Add. , PCS. at the enterprise for the period up to __ 1 1 2 2 3 4 40 - PMT 59 6 - PMT 59 M 5 40 - 40 TU 4226 -063 -13282997 -05 JSC "Teplokontrol" plant GOST R 50746 -2000 3 4 PMT 69 L

Manufacturer No. Name of MI Type, model 1 2 Calibrator 3 Fluke 725 Brief technical characteristics Cost Country Company 4 5 6 7 Fluke 725 allows you to simulate, generate and measure a number of parameters, including voltage, current, resistance, frequency, and from 136000 r. any of Fluke's 29 precision pressure and pressure modules, and test and calibrate thermistors and thermocouples. USA Demand Justification of the need to purchase measuring instruments of this type 8 9 1 No analogues of domestic production

№ Name of the standard Type, factory designation 1 2 3 Pressure standards and standard pressure measuring instruments - pressure transmitters of the Air series; - Metran series pressure calibrators, etc.; - deadweight manometers; Metrological stand - pressure controllers Standard measuring instruments for verification, calibration, repair of output signal sensors: - pressure calibrators of the pressure series and secondary devices Metran; - multimeter Agilent 34401 A, - measure of electrical resistance MS 3007 or MS 3006 A set of functional devices Table, rack and chair. Name of MI (with indication of types) for the Manufacturer of verification (calibration) of which standards are needed 4 5 Metran - The need of the enterprise to purchase or lease, pcs. 6 Purchasing 1 piece

This job description has been translated automatically. Please note that automatic translation does not provide 100% accuracy, so there may be minor translation errors in the text.


Instructions for the position " Head of the laboratory of instrumentation and automation", presented on the website, complies with the requirements of the document - "DIRECTORY of qualification characteristics of workers' professions. Issue 87. Housing and communal services of settlements. (Taking into account the applications approved by: order of the State Committee of Ukraine on Housing and Communal Services of 09.07.2004 N 132, order of the State Housing and Communal Services of Ukraine on 22.11.2004 N 210, order of the Ministry of Housing and Communal Services of 08.12.2009 N 387, order of the Ministry of Housing and Communal Services of Ukraine on December 23, 2010 N 464), which was approved by the order of the State Committee for Construction, Architecture and Housing Policy of Ukraine on June 14, 1999 N 144. Agreed by the Ministry of Labor and Social Policy of Ukraine. The status of the document is "valid".

Preface to job description

0.1. The document comes into force from the moment of its approval.

0.2. Document developer: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

0.3. Document approved: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

0.4. Periodic verification of this document is carried out at intervals not exceeding 3 years.

1. General Provisions

1.1. The position "Head of the laboratory of instrumentation and automation" belongs to the category "Managers".

1.2. Qualification requirements - complete higher education in the relevant field of study (master or specialist). Postgraduate education in management. Work experience by profession: for a master - at least 2 years, for a specialist - at least 3 years.

1.3. Knows and applies:
- resolutions, orders, orders of higher authorities;
- regulations, instructions and other guidance regarding measuring instruments;
- laboratory equipment and rules for its operation;
- regulatory and technical documentation (standards, specifications and rules for the technical operation of trams and trolleybuses;
- basics of labor legislation;
- rules and norms of labor protection, industrial sanitation and fire protection.

1.4. The head of the laboratory for instrumentation and automation is appointed to the position and dismissed by order of the organization (enterprise / institution).

1.5. The head of the laboratory for instrumentation and automation reports directly to _ _ _ _ _ _ _ _ _ _ .

1.6. The head of the laboratory of instrumentation and automation controls the work of _ _ _ _ _ _ _ _ _ _ .

1.7. The head of the laboratory for instrumentation and automation during absence is replaced by a duly appointed person who acquires the appropriate rights and is responsible for the proper performance of the duties assigned to him.

2. Description of work, tasks and job responsibilities

2.1. Carries out control over the operation and maintenance of technical accounting of measuring instruments.

2.2. Organizes work on testing new measuring instruments.

2.3. Develops and implements standards (methods) for performing measurements, establishing a rational range of parameters that are measured, standards for measurement accuracy.

2.4. Draws up schedules of state checks for exemplary devices.

2.5. Carries out for the needs of the subdivision of the development of non-standard measuring instruments.

2.6. Takes measures to provide workplaces with technical equipment, necessary materials and documentation.

2.7. Participates in the work on studying the market of materials, reducing the cost of production (work).

2.8. Monitors compliance by laboratory workers with industrial and labor discipline, their compliance with rules and regulations on labor protection.

2.9. Supervises laboratory staff.

2.10. Knows, understands and applies the current regulatory documents relating to its activities.

2.11. Knows and fulfills the requirements of regulatory acts on labor and environmental protection, complies with the norms, methods and techniques for the safe performance of work.

3. Rights

3.1. The head of the laboratory of instrumentation and automation has the right to take actions to prevent and eliminate the occurrence of any violations or inconsistencies.

3.2. The head of the laboratory of instrumentation and automation has the right to receive all social guarantees provided for by law.

3.3. The head of the laboratory for instrumentation and automation has the right to demand assistance in the performance of his duties and the exercise of rights.

3.4. The head of the laboratory of instrumentation and automation has the right to demand the creation of organizational and technical conditions necessary for the performance of official duties and the provision of the necessary equipment and inventory.

3.5. The head of the laboratory of instrumentation and automation has the right to get acquainted with the draft documents relating to his activities.

3.6. The head of the laboratory of instrumentation and automation has the right to request and receive documents, materials and information necessary for the performance of his duties and instructions of the management.

3.7. The head of the laboratory of instrumentation and automation has the right to improve his professional qualifications.

3.8. The head of the laboratory of instrumentation and automation has the right to report all violations and inconsistencies identified in the course of his activities and make proposals for their elimination.

3.9. The head of the laboratory of instrumentation and automation has the right to get acquainted with the documents defining the rights and obligations of the position held, the criteria for assessing the quality of performance of official duties.

4. Responsibility

4.1. The head of the laboratory of instrumentation and automation is responsible for non-fulfillment or untimely fulfillment of the duties assigned by this job description and (or) non-use of the rights granted.

4.2. The head of the laboratory of instrumentation and automation is responsible for non-compliance with the rules of internal labor regulations, labor protection, safety, industrial sanitation and fire protection.

4.3. The head of the laboratory for instrumentation and automation is responsible for disclosing information about the organization (enterprise/institution) that is a trade secret.

4.4. The head of the laboratory of instrumentation and automation is responsible for non-fulfillment or improper fulfillment of the requirements of the internal regulatory documents of the organization (enterprise / institution) and the legal orders of the management.

4.5. The head of the laboratory of instrumentation and automation is responsible for offenses committed in the course of his activities, within the limits established by the current administrative, criminal and civil legislation.

4.6. The head of the laboratory of instrumentation and automation is responsible for causing material damage to the organization (enterprise / institution) within the limits established by the current administrative, criminal and civil legislation.

4.7. The head of the laboratory of instrumentation and automation is responsible for the misuse of the granted official powers, as well as their use for personal purposes.

Organization of the repair service of instrumentation and automation.

Depending on the structure of the enterprise, the area for the repair of instrumentation and control equipment, as well as the area for operating instrumentation and automation, refers to instrumentation shop or metrology department .

The Chief Metrologist Service (SGM) carries out a set of measures for metrological support, metrological control, repair and production of measuring instruments, aimed at ensuring the unity and required accuracy of measurements.

Main tasks services of the chief metrologist are:

ensuring the unity and required accuracy of measurements, raising the level and improving the technique of measurements and control;
ensuring verification and repair of measuring instruments used in the divisions of the enterprise and third-party organizations in the provision of services in accordance with the scope of accreditation;
improving the quality and competitiveness of measuring instruments produced by the enterprise;
metrological support for the development, production, testing and operation of measuring instruments manufactured by the enterprise.

The service of the chief metrologist includes: verification and calibration laboratory and instrumentation repair laboratory.

Verification laboratory andcalibration performs work on organizing the primary verification of devices manufactured by the enterprise, verification of metering devices, sensors and their sets, pressure and temperature control devices, as well as primary converter devices, etc., according to the scope of accreditation.

Instrumentation and control laboratory carries out work on the repair of devices and automation installed at the enterprise. The laboratory carries out: input control of all instruments and equipment received for repair and verification; repair of instrumentation, instruments and automation units; repair of control systems; testing, repair, adjustment and adjustment of microprocessor controllers and electronic computing units; maintenance, testing, repair, adjustment and adjustment of units and devices of controlled electric drives (REP) both at the place of their installation and in laboratory conditions; maintenance and repair of primary primary converter devices.

The laboratory includes:

Repair section for microprocessor controllers, which provides repair, testing, adjustment and adjustment of microprocessor controllers and electronic computing units in the laboratory

Area for testing, repair, adjustment and adjustment of pressure, flow and level instruments; analytical instruments; instruments for measuring physical and chemical parameters; electrical measuring and electronic devices;

Instrumentation repair section, which performs repairs of instrumentation, instruments and automation units in laboratory conditions, etc.

Workplaces for the repair of instrumentation and automation are equipped with the necessary bench equipment for high-quality and prompt repairs of the entire fleet of instruments and automation in operation.

The repair section of the instrumentation and automation equipment is managed by the head of the section or a senior foreman. The staffing of the site depends on the range of operated means of control, measurement and regulation, as well as the amount of work performed. At large enterprises with a wide range of instrumentation and control equipment, the repair section includes a number of specialized repair units: temperature measurement and control devices; pressure, flow and level instruments; analytical instruments; instruments for measuring physical and chemical parameters; electrical measuring and electronic devices.

The main tasks of the site are the repair of instrumentation and control equipment, their periodic verification, certification and submission of instruments and measures in due time to the State verification bodies.

Depending on the scope of repair work, the following types of repairs are distinguished: current, medium, capital.

The current repair of instrumentation and control equipment is carried out by the operational personnel of the instrumentation and control section.

Medium repair involves partial or complete disassembly and adjustment of measuring, regulating or other instrument systems; replacement of parts, cleaning of contact groups, assemblies and blocks.

Overhaul regulates the complete disassembly of the device or regulator with the replacement of parts and assemblies that have become unusable; calibration, production of new scales and testing of the device after repair on test benches with subsequent verification (state or departmental).

Instrument verification- determination of the compliance of the device with all the technical requirements for the device. Verification methods are determined by factory specifications, instructions and guidelines of the State Committee for Standards. Metrological supervision is carried out by checking the means of control, measurements, metrological revision and metrological examination. Metrological supervision is carried out by a single metrological service. State verification of instruments is carried out by the metrological service of the State Committee of Standards. In addition, individual enterprises are given the right to conduct departmental verification of certain groups of devices. At the same time, enterprises that have the right to departmental verification are issued a special stamp.

After satisfactory verification results, an impression of the verification mark is applied to the front of the device or glass.

Measuring instruments are subjected to primary, periodic, extraordinary and inspection verifications. The terms of periodic verification of instruments (measuring instruments) are determined by the current standards (Table 1).

Table 1. Frequency of verification of measuring instruments

Working devices	Who does verification	Verification frequency
Differential pressure gauges-flowmeters accounting and commercial		1 time per year
Differential pressure gauges-flowmeters technological		1 time per year
Pressure devices according to the list		1 time per year
Technical pressure gauges		1 time per year
Instruments for measuring pressure, rarefaction, difference and pressure; process level gauges		1 time in one or two years
Liquid thermometers		1 time in four years
Logometers, millivoltmeters		1 time in four years 1 time in one or two
Other temperature devices		years 1 every two years

Note: HMS - state metrological service, Navy - departmental metrological service.

Organization of the workplace of the instrumentation and automation fitter

Mechanics of instrumentation and automation, depending on the structure of the enterprise, perform both repair and maintenance work.

The task of operating instrumentation and automation equipment installed at production sites and workshops is to ensure uninterrupted, trouble-free operation of control, signaling and regulation devices installed in panels, consoles and individual circuits.

Repair and verification of instrumentation and automation equipment is carried out in the instrumentation and automation workshops or the metrology department in order to determine the metrological characteristics of measuring instruments.

The workplace of the instrumentation and automation fitter involved in the operation of the equipment has boards, consoles and mnemonic diagrams with installed equipment, devices; table-workbench with a source of regulated alternating and direct current; test fixtures and stands; in addition, the workplace must have the necessary technical documentation - installation and circuit diagrams of automation, instructions from instrument manufacturers; personal protective equipment for work in electrical installations up to 1000 V; voltage indicators and probes; devices for checking the operability of measuring instruments and automation elements.

Sanitary and living conditions must be maintained at the workplace: area per workplace of an instrumentation and automation fitter - at least 4.5 m 2, air temperature in the room (20 ± 2) ° С; in addition, supply and exhaust ventilation should work, the workplace should be adequately lit.

For each device in operation, a passport is entered, in which the necessary information about the device, the date of commencement of operation, information about repairs and verification are entered.

A card file for measuring instruments in operation is stored at the site engaged in repair and verification. Certificates for exemplary and control measures of measurements are also stored there.

To carry out repairs and verification at the site, there must be design documentation regulating the repair of each type of measuring equipment, as well as its verification. This documentation includes standards for medium and major repairs; consumption rates of spare parts and materials.

Storage of funds received for repair and repaired and verified should be carried out separately. For warehousing there are appropriate racks; the maximum allowable load on each shelf is indicated by the corresponding tag.

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