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TECHNICAL SPECIFICATIONS1.0 INTRODUCTION

The Vacuum Drying System is used for drying test articles for Rocket

Engines under vacuum condition after flow characteristic testing with water. This

is to ensure that the test articles are free from water traces after the water flow

tests. The vacuum drying system mainly consists of 2 Nos. of Vertical Vacuum

Chambers I & II, Vacuum Pumping system, Heating System and Instrumentation &

control system. The vacuum drying operation is carried out in one chamber at a

time. The existing Thyristor Power controller, Instrumentation & Control system

has become obsolete and hence, the same has to be replaced with Digital control

& Instrumentation system. Schematic diagram of the Vacuum Drying System is

shown in Figure-1

2.0 SCOPE OF WORK

The scope of supplier includes Supply, Installation, and Testing & Commissioning

of Digital Control & Instrumentation system for the existing vacuum drying

system. The scope of supply also includes following major components.

Sl No. Item Description Qty

1. Pirani Vacuum gauges 3 Nos.

2. Capacitance Manometer Vacuum gauges 2 Nos.

3. ‘k’ type thermocouple temperature sensors 7 Nos.

4. PT-100 RTD type temperature sensors 4 Nos.

5. Thyristor Power Controller/ Regulator 2 Nos.

6.PLC system consisting of IO modules, PID controllers,

Temperature indicators/controller etc1 Lot

7. SCADA Control system with licensed software 1 Set

8. Temperature Transmitters for TC and RTD 11 Nos.

9. Industrial PC with rack mountable monitor 1 No.

10.MS Power coated panel for housing the Power & PLC

components1 No.

11. Power, Control & Instrumentation Signal Cables 1 lot

12.Electrical switchgears, push button stations, selector

switches1 set

13. Water flow switches & pressure switches 1 Set

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• The supplier shall supply the digital Control & Instrumentation system that

can control both of vacuum champers I & II in closed loop operation.

However, only one chamber will be operational at a time by selecting the

selector switch and SCADA system.

• The existing Vacuum chambers I & II with Quartz infrared lamps inside,

vacuum valves, vacuum pumping system shall be retained.

• Removal of the existing control system with panel (Dimensions: 2200 mm

X 1800 mm X 450 mm, weighing 450 kg), power, control & sensor

cables, Indoor 18 kVA & 42 kVA, 420V / 185V, Transformers (2 Nos.)

etc. The work includes mounting of new sensors, making interfaces for

new sensors to new panel, & laying of necessary interconnecting power

& instrumentation cables shall be the scope of the Supplier. The details

of list of components to be retailed/to be replaced as per Annexure – 1.

3.0 DETAILS OF EXISTING VACUUM DRYING SYSTEM

The Vacuum drying system mainly consists of

1. Two vertical vacuum chambers I & II, vacuum valves,

2. Thyristor controlled Heating system with Quartz infrared lamps inside the

vacuum chambers I & II.

3. A common vacuum pumping system

4. Instrumentation and control system with PLC with SCADA & PC operation

and data acquisition

3.1 EXISTING VACUUM CHAMBER - IVertically mounted vacuum chamber, fabricated out of AISI 304 stainless

steel material.

Dimension: 2000 mm diameter

1600 mm cylindrical height

2300 mm total height

Heating system

The chamber - I heating system consisting of 42 Nos. of Infrared lamps (1

kW each). The IR lamps are arranged in 3 rows, each row consists of 14

lamps. Each lamp is mounted inside a reflector box to radiate maximum heat

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to the job being dried. The operating voltage of the heating of the heating

system is limited to 170 V AC in order to avoid arcing problem in vacuum.

3.2 EXISTING VACUUM CHAMBER – IIVertically mounted vacuum chamber, fabricated out of AISI 304 stainless

steel material.

Dimension: 700 mm diameter

600 mm cylindrical height

850 mm total height

Heating system

The chamber - I heating system consisting of 18 Nos. of Infrared lamps (1 kW

each). The IR lamps are arranged in 3 rows, each row consists of 14 lamps. Each

lamp is mounted inside a reflector box to radiate maximum heat to the job being

dried. The operating voltage of the heating of the heating system is limited to 170 V

AC in order to avoid arcing problem in vacuum.

3.3 EXISTING VACUUM PUMPING SYSTEM

A dry vacuum pump is used to evacuate the vacuum chamber to a minimum

vacuum level of 10 mbar inside the chamber.

VACUUM PUMP DETAILS:

Type Dry Pump

Pumping speed 91.5 m³/hr

Ultimate Vacuum 3 x 10-2 mbar

Maximum continuous inlet pressure 1013 mbar

Power Supply 3-Phase, 50 Hz, 415 V

Make Edwards,UK

Model QDP 80 Edwards Drystar

Power @ ultimate pressure 3.6 kW

Inlet/ outlet Flange ISO 100/ ISO 63

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3.4 EXISTING VACUUM VALVES

a. An electro pneumatically operated right angle valve V5 of 3” size is provided in

the evacuation line. The opening and closing of valve is interfaced with RTD

temperature measuring instrument.

b. Two nos. of electro pneumatically operated proportional control valves (PCV1, 6”

& PCV2, 3”) are provided in the evacuation line to control the vacuum level

inside the chamber – I and II based on the set values from 10 mbar to

1000 mbar. This will open/close based on signal from vacuum controller. This

valve has I/P convertor and accepts 4-20mA from the vacuum controller which in

turn operates on signal from capacitance type vacuum gauge to control vacuum

level inside the chamber.

3.5 EXISTING HEAT EXCHANGER WITH CONDENSATE COLLECTOR

The inlet and outlet of heat exchanger will have “k” type T/C temperature sensor

to measure the inlet and outlet temperature of gases coming from the chamber and

one more T/C temperature sensor is provided at the outlet of the vacuum pump.

This T/C will give a feedback signal to electro pneumatic isolation valve, V5 in the

evacuation line to open/close depending on the temperature of hot air coming from

the heat exchanger.

3.6 VACUUM MEASUREMENT (SUPPLIERS SCOPE)

Vacuum measurement is made by means of active gauge controller of Edwards

/ PIEFFER/ ALCATEL make which will accept three nos. of pirani gauge heads.

Pirani gauge will have a measuring range from 1000 mbar to 10 mbar while

capacitance manometer will have a measuring range from 1000mbar to 1mbar. Out

of three pirani gauge heads one gauge head is mounted near to the inlet of pump

while other gauge heads are mounted on the Chamber - I & Chamber - II.

Two nos. of capacitance type absolute pressure gauge sensors having

measuring range from 1000 mbar to 1 mbar are to be provided. Out of 2 sensor

heads, one sensor head is mounted on the chamber – I and other on the chamber –

II. This provides signal to PLC which in turn provides signal to proportional control

valves (PCV1/ PCV2, existing at Purchasers site) to control vacuum inside the

chamber I or chamber II.

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3.7 HEATING SYSTEMS

Heating system for Chamber – I (existing): Heating system has Infrared Lamps

(Halogen lamps, PHILIPS make) of about 42 nos. of 1 kW each. Each lamp is

mounted inside a reflector box to radiate maximum heat to the components.

Heating system for Chamber – II (existing): Heating system has of Infrared Lamps

(Halogen lamps, PHILIPS make) of about 18 nos. of 1 kW each. Each lamp is

mounted inside a reflector box to radiate maximum heat to the components.

The power to the heater is to be smoothly controlled by Thyristor power

controller/Regulator of Makes AEG, Schneider, Siemens, Eurotherm (Supplier’sscope) which operates in closed loop with a signal from temperature sensor. The

Microprocessor based temperature programmable controller shall take feedback

from Thermo couple temperature sensor provided in the chamber. Moreover one

over temperature indicator & controller and two nos. of digital temperature indicator

are also required in the Digital control system panel.

3.8 INSTRUMENTATION & MEASUREMENT

The Digital Control System shall have provision to monitor the pressure,

temperature parameters and controls the vacuum drying system operation by

commanding the solenoid valves, pneumatic valve and control valves. The

operations shall be carried out in Manual mode and or Auto mode where the

operations are carried out in a predefined sequence of time. Also the measurement

parameters like vacuum pressure, temperature and command status for flow

switch, pressure switch, and status indicators are to be logged in the computer.

The Digital control system shall be a standalone PLC based control system in

which operations are carried out through SCADA (Supervisory Control and Data

Acquisition) system. The data shall be logged in high configuration Industrial PC

with rack mountable monitor and from which SCADA is operated and PLC is

programmed.

Separate mimic pages shall be provided to operate the Vacuum Drying

Chambers I & II. Computers shall be loaded with only licensed software & other

software. All the command system chains for control valve and status of pneumatic

valves to be realized with isolators and outputs to be acquired in PLC based data

acquisition system. Requirements of command system are given below.

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The supply of PLC Controller, I/O modules, power modules, communication

modules, SCADA station, power suppliers and other accessories if any are under

the scope of the Supplier. The development of SCADA as per the requirements,

installation, commissioning, laying of electrical and instrumentation cables, routing

of cables in cable tray from Vacuum drying chambers to the Digital Control system

panel is under the scope of the Supplier.

Valves (Existing at Purchaser’s site and to be retained)Proportional Control valves : 2 Nos.

Pneumatic valves : 7 Nos.

Solenoid valves : 2 Nos.

Sensors/gauges (Supplier’s scope)Vacuum gauge (Pirani type) : 3 Nos.

Vacuum gauge (Capacitance type) : 2 Nos.

Thermocouple temperature sensor : 7 Nos.

RTD type temperature sensor : 4 Nos

4.0 SPECIFICATION OF SENSORS/GAUGES

4.1. Pirani vacuum gauges (3 Nos.)

EDWARDS make active pirani vacuum gauge, model No: APG100 or

PIEFFER/ ALCATEL make of the following specification.

Mass : 85 gms

Internal volume : 5 cc

Enclosure : IP40

Measurement range : Atmosphere to 10-3 mbar

Power consumption : 1 W

Output signal : 0 to 10 V DC

TIC Instrument controller

Electric supply : 90 to 264 AC, 50 Hz

Power consumption : 3 head TIC 55 VA

Analogue output : 0-10 V DC, The TIC has two built-incommunication protocols, RS232and RS485

Interface of sensor : DN 16 ISO -KF

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4.2. Capacitance type vacuum gauges (2 Nos.)

Apart from pirani gauge, smart type vacuum pressure transmitter of YOKAGAWA

make, Model No: EJX 610A or INFICON make, Model No: CDG025D-DN16 ISO-KF

375-001 or equivalent make of following specification shall be provided.

Type : SMART Vacuum Transmitter(Capacitance type)

Measurement range : 1000 mbar to 1 mbar

Service medium : Air/ GN2

Output : Two wire 4 -20 mA withsuperimposed Digitalcommunication HART protocol.

Power supply : 12 to 40 V DCIndication : 41/2 digits LCD – Local Alpha

Numeric Digital Display inengineering unit.

Protection : Weather proof

Zero & span : Zero & span are to be adjusted fromthe Hand held HART communicatorand provision for local adjustment.To be set anywhere within the rangelimits

Failure mode alarms : High Alarm ≥ 21.0 Ma,Low Alarm ≥ 3.6 mA

Accuracy : ± 0.1% of Calibrated Span(Including the effect of Linearity,hysteresis & Repeatability) for spanless than 10:1

stability : ± 0.1 % of URL for 24months or ≤ ±0.02 of URL for 60 months

Interface of sensor : DN 16 ISO –KF

4.3. RTD type temperature sensor (4 Nos.)

4- wire PT-100-RTD is used for temperature measurement in the range of 0 to 300°Cwith accuracy of ± 3°Cincluding sensor. The output of transmitter is 4 to 20 mA. TheSpecifications of PT 100-RTD sensor is given as below.

Type : Platinum RTD (PT100)

Quantity : 4 Nos.

Sensing Element : Platinum

Temperature Range : 0 - 300°C

Resistance at 0°C : 100.0 ± 0.25 ohms

Accuracy Class : Class ‘B’

Basic Sensor Error : ± 2°C of 0 - 300°C

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Insulation resistance : > 20 MΩ

Thermal response : < 2 sec

Lead Configuration : Connectors / 4 wires

Sensor Configuration : Probe type

Interface of sensor : DN 16 ISO-KF

4.4. Thermocouple temperature sensor (7 Nos.)

Type : K-type

Temperature Range : 0 - 300°C

Resistance at 0°C : 100.0 ± 0.25 ohms

Accuracy Class : Class ‘B’

Basic Sensor Error : ± 2°C of 0 - 300°C

Insulation resistance : > 20 MΩ

Thermal response : < 2 sec

Lead Configuration : Connectors / 4 wires

Sensor Configuration : Stainless steel Sheathed, Flexible,Diameter- 3 mm, length-3 m(Job temperature sensor)

Interface of sensor (4 types of

interfaces for total 7 Nos. of

sensors)

1) Stainless steel flange,Dimension: Ø 165 mm, thick: 12 mm,P.C.D–145 mm, No. of Ø 9 mm holes -8 Nos.on P.C.D (for one sensor)

2) Stainless steel flange,Dimension: Ø 110 mm, thick: 12 mm,P.C.D – 90 mm, No. of Ø 9 mm holes - 4 Nos.on P.C.D (for one sensor)

3) Stainless steel flange,Dimension: Ø 145 mm, thick: 12 mm,P.C.D – 125 mm, No. of Ø 9 mm holes- 4 Nos.on P.C.D (for 2 sensors)

4) Stainless steel DN 25 ISO-KF(for 3 sensors)

4.5. Temperature transmitter

Rosemount make, (Model No: 3144P) or equivalent make shall be used for thesystem integration and data acquisition. The specification of temperaturetransmitter is given below

Digital Accuracy : (+ 0.10°C / +0.18°F) for PT 100 RTD

Stability : + 0.1% of reading

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Input : 4-wire RTD

Output : 4-20 mA/ HART protocol

Supply Voltage : 24 V dc

5.0 SPECIFICATION OF DIGITAL CONTROL SYSTEM:

The specification of Digital control system to be supplied is given below. By operating the

Vacuum drying system with Digital Control system, thermo vacuum drying of test articles

shall be carried out. Industrial PC with rack mountable monitor should be provided to

control field element and for data acquisition.

5.1 Salient Features of Control System

Standalone PLC based control system

Cycle Time : 100 msec

MIMIC updating within 1 sec

Command generation with 500 msec interval

Conditional based logics and Safety Interlocks

Preferred Makes: Siemens/ Schneider/ Allen Bradley / ABB / Eurotherm

5.2 Analog Input Module

a) Analog input cards shall be provided to accept 0-10V DC, 4-20 mA,

b) No. of channels: 4/ 8/16 per module.

c) Resolution : >14 bits

d) Input Impedance:

• ≥ 1 M ohms for voltage input

• ≤ 250 ohms for current inpute) Overall Accuracy: Better than ± 0.2 %

f) Conversion Time: < 75 msec

g) Electrical Isolation:

• Input to PLC > 250 VRMS

• Isolation Resistance: Input to PLC & channel to channel > 5 M ohms

5.3 Analog Output Module

a) No. outputs: 4/ 8/16 per module

b) Output Signal:4-20 mA optionally configurable for 0-10 V

c) Resolution:≥ 12 bits

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d) Conversion time for all channels: <100 msec

e) Overall Accuracy:≤± 0.5 %

f) Load Resistance:< 500Ω

g) Electrical Isolation: Output to PLC & channel to channel >250 VRMS

5.4 Digital Input Module

a) No. of inputs: 8/16/24/32 per module.

b) Input voltage (Nominal): 24 V DC

c) Input voltage (Maximum): 30 V DC

d) Switching Threshold

• Low : < 5V

• High : > 10V

e) Input Resistance : > 2 KΩ

f) Switching Delay : < 5 msec

g) Input Current : < 10 mA

h) Isolation :

• Input to PLC : > 250 VRMS

• Group to group (groups of 4/8/16): 150 VDC to be provided.

5.5 Digital Output Module

a) No. of Outputs : 8/16/24/32

b) Type : Transistor

c) Output Voltage : 24 V DC (nominal)

d) Minimum Voltage : 20 V DC

e) Maximum Voltage : 30 V DC

f) Overload Protection : to be providedg) ON/OFF Switching Delay : < 3 msec

h) Continuous Current Per Output : > 0.5 A

i) Electrical Isolation :

• Output to PLC : ≥ 250 VRMS

• Group to group (groups of 4 or 8): to be provided.

The PLC shall do the following operations

Reading of signal from sensor

Output Setting

On-line diagnostics

Execution of application program in Auto Mode/ manual mode

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Communication between I/O modules & processor

Software PID loops.

Closed loop control operation

• Necessary communication interfaces and protocols to be provided to

communicate between the PLC and PC. Life time license to be provided

for PLC and SCADA software. The data has to be stored and retrieved

and processed to view the data in print out format for various

operations carried out as time Vs parameters.

• Temperature has to be controlled within a specific duration. Program to be

provided such that it should be with user friendly menus to vary the set

value and time through SCADA. Alarm indicators along with hooter are to

be provided for over temperature limit. Control accuracy for temperature

should be better than ±10°C of the set value for the temperature sensors

for chamber/ Article. Hooter/ Alarm for Over temperature shall be provided.

• PLC shall have PID loops to control the temperature inside chamber in

closed loop using temperature sensor measurement as feedback.

• Vacuum pressure also to be controlled by PLC based PID in closed loop

with vacuum measurement as feedback. Necessary interlocks & alarms to

be provided.

• The control accuracy should be better than ±5 mbar of the set value.

Alarm indicators are to be provided.

• All the application softwares should be developed by the supplier and

source code to be provided for future modification

• Application software shall be developed by the party as per the requirement

for control operation of vacuum drying system.

• Mimic pages in SCADA should be developed as per the schematic diagram

by the supplier.

5.6 Control console

The Digital control console should be provided with following features:

1. Manually operated push button switches for pumps, valves with indicator lamps.

2. Process logic controller.

3. Mimic diagram with status indication of valves, pumps, heaters, pneumatic

supply and water supply.

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4. Alarm and indication lamps for cooling water, Command gas utility failure,

temperature with reset push button.

5. Temperature programmer controller.

6. Digital temperature indicator controller with thermocouple temperature sensor for

over temperature protection.

7. Digital temperature indicators with thermocouple temperature sensor for

chamber – 1 & Chamber – 2.

8. Digital temperature indicator controller with thermocouple temperature sensor at

outlet of heat exchanger for over temperature protection.

9. Emergency stop switch shall be provided in the Digital control panel.

5.7 Monitoring Station & Software

1. Industrial PC with rack mountable type 19” monitor with Intel core i7 processor,

8 GB RAM, 1TB Storage, PCI slot, PCI Express slot etc for SCADA operations

are to be placed in the supplied panel itself.

2. Keyboard and mouse interface shall be provided for the monitoring station.

3. PLC programming software.

4. Application software.

5. SCADA software.

6. Data logging & Data processing software.

7. 1kVA online UPS for control system power supply.

5.8 MS Power Coated Panel

The panel is shall be made of MS Power coated sheet made which houses allElectrical switch gears, Thyristor Power regulators, PLC I/O modules, indicationlamps, current and voltage meters, energy meter and overall process mimicdiagram with indications and necessary panel cooling fans.

5.9 Safety interlocks and alarms to be incorporated in control system panel

1. A door switch is available in both chambers I & II, so that Isolation valve and

lamp heater will not operate when the top lid is in open condition. This is

achieved by using a door switch on the chamber flange.

2. An interlock is provided between air Admittance valves V1, V2, V3 & V4 and

isolation V5 valve such that isolation valve will not open when the air Admittance

/vent valve in open position.

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3. A over temperature controller with thermocouple temperature sensor shall be

provided to sense the over temperature and give signal for heater power supply

to switch off.

4. A digital temperature indicator controller with thermocouple temperature sensor

shall be provided at the outlet of the heat exchanger to sense the over

temperature and give signal for isolation valve to close.

5. Proportional control valve shall open/close to maximum/ minimum level based

on signal from vacuum pressure gauge through its set point and thus will

achieve the desired vacuum level inside the chamber.

6. Water flow switch and pressure switch are to be provided in the cooling water

line to switch off the system in case of reduced water flow/water failure or

pneumatic supply failure.

7. Solenoid operated isolation valve, EPV7 between heat exchanger and

condensate trap will open this is achieved through PLC.

5.10 Alarms (Hooter with light indicator):

The following alarms with hooter & light indicator are to be provided in the system.

a. Alarm for over temperature inside the chamber.

b. Alarm for high temperature at the pump inlet.

c. Alarm for low water flow/ low water pressure in case of water failure.

d. Alarm for low Pneumatic pressure.

5.11 Manual mode operations (to be enabled):

Manual mode of operation shall be enabled in the new control system as givenbelow by overriding the Automatic sequence mode of operation of the vacuumdrying system.

• Manual mode/ Auto sequence mode selection switch.

• Switch for selection of Chamber I or II for heating and vacuum drying operation.

• Manual switch for starting vacuum pump.

• Setting of required Vacuum level and temperature manually on the Vacuum &

Temperature controller.

• Manual switch for Electro pneumatic valves.

5.12 Auto mode operation required:

• Manual mode / Auto mode selection switch on the front panel.

• Main Miniature Circuit Breaker, MCB on /off switch

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• Alarm/ Indicator system for all the utilities like water pressure (< 0.5 bar g), air

pressure (< 7 bar g) etc.

• Selector switch for local or remote mode to operate the system either from the

front panel or through PC

6.0 PRE DELIVERY INSPECTION & TESTING AT SUPPLIER’S SITE

The Digital Control system, Controllers, PLC, PID etc. shall be subjected to

necessary Electrical checks, Electronic calibration / tests etc. at Supplier’s

site and shall be witnessed by Purchaser’s Representative. After

satisfactory completion of the above activities “Pre-Delivery Inspection

Report” shall be released, jointly by Supplier & Purchaser’s

Representative. Upon release of Pre-Delivery Inspection Report, Purchaser

will issue “Purchaser’s delivery clearance”. The Supplier shall transport the system

from their factory to IPRC.

7.0 INSTALLATION, COMMISSIONING AT PURCHASER’S SITE

Required skilled / unskilled labourers for installation & commissioning also should

be deployed by the supplier.

After the completion of erection of the system, the supplier has to commission the

system and carry out performance tests in the presence of Purchaser’s Engineers.

The commissioning and acceptance includes the following:

• The electrical circuits are to be energized to ensure satisfactory operation of

Digital Control System and Thyrister Controller, PLC etc.

• The heating system in the vacuum chambers I & II should be tested to

prove the specified requirements. The test article of weight 100 kg should be

heated to 120o C in 30 minutes. The function of controller has to be

demonstrated at site.

• Vacuum chambers I & I I are to be evacuated to required level of

operating vacuum, 100 mbar & 10 mbar by vacuum pump within 30 minutes.

• All safety interlocks, switches and alarms in the system are to be operated

under simulated conditions to ensure satisfactory functioning

• All the spares, consumable items, etc. required for commissioning should be

arranged by supplier. Special tools, devices and equipments required for

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satisfactory installation & commissioning to meet the stipulated specification &

performance should be brought by the supplier.

8.0 TRAINING

After completion of installation and commissioning, training for the operations &

maintenance of Digital Control system of Vacuum Drying System is to be given to

IPRC’S Engineers for a period of 3 days which includes

Mechanical/Instrumentation/Electrical system.

9.0 SPARES

Spares required for trouble free operation & maintenance of the Digital control

system to be listed down by the Supplier with price break up.

PREFERRED MAKES

SlNo. Name of Component Makes

1. Active pirani vacuum gauge EDWARDS APG100/PIEFFER/ALCATEL

2. Capacitance type vacuum gauges smart type vacuumpressure transmitter

YOKAGAWA EJX 610A /INFICON CDG025D-DN16ISO-KF 375-001

3. Temperature transmitters Rosemount make 3144P orequivalent

4. Programmable Logic Controller with SCADA Siemens, Schneider, AllenBradley, ABB, Eurotherm

5. Thyristor Power Regulator/Controller AEG, Schneider, Siemens,Eurotherm

6. MCCB, MCB, Contactors & Push buttons, selectors etc Legrand, Siemens, ABB,Schneider,

7. FRLS Power & Control cables Polycab, Finolux, LAPP,Gloaster, CCI, RPG, RR Kable

8. Instrumentation Signal cables TEMPSENS or equivalent

SPECIAL CONDITIONS FOR SUPPLY, INSTALLATION, COMMISSIONING& TESTING OF DIGITAL CONTROL SYSTEM FOR VACUUM DRYING

SYSTEM (60 kW)

1. PRE BID MEETING

Within 2 weeks from date of floating of tender, it is proposed to brief all

interested bidders on the requirements of this work at IPRC, Mahendragiri and

the exact date will be intimated after tendering. Bidders interested to participate

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in the pre-bid meeting shall communicate their willingness in writing to Head,

Purchase & Stores immediately on receipt of this document. Tender of a firm

which is not attended the pre-bid meeting shall be considered for disqualification.

• Guarantee/WarrantyThe Digital Control system shall be guaranteed/ warranted for satisfactory

performance over a period of 18 months from the date of dispatch from the

vendor’s factory or 12 months from the date of commissioning at the

purchaser’s site, whichever is earlier. System program modification / update if

any during the Guarantee/warranty period is under the scope of the Supplier.

Supplier should furnish a Performance Bank Guarantee (PBG) for 10% of the

purchaser order value for the same till the expiry of the guarantee period.

• DocumentationThe following documents (3 copies, in English both softcopy & hard copy) should

be provided by the supplier at different stages specified thereupon:

.1. Along with Techno commercial bid (Part-I): The following documents shall

be provided:

A complete technical description along with schematic and wiring diagrams,

drawings & catalogues of the Digital Control system quoted.

Deviations, if any, from the tender enquiry specification shall be explicitly

spelt out. Otherwise it will be presumed that the offer is as per tender

specification.

The company profile of the vendor highlighting the following:

i. Status as to whether the vendor is a Control system manufacturer,

trader, dealer, stockiest, agent, etc.

ii. Infrastructural facilities such as factory area, machineries, equipments,

material handling devices, instruments, tools, tackles, etc owned by

the vendor.

iii. Previous experience: Bidder shall submit evidence of previous experience

in the form of Purchase order for Digital Control system for Vacuum Drying

System or any other Machinery supplied elsewhere.

iv. Clientele: specifying the clients to whom the vendor has supplied similar

Digital control system indicating their address, telephone, fax, email,

contact person, etc.

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Note: The bidder strictly should not indicate the price break-up details in Techno-Commercial bid (Part-I), otherwise the bid will be summarily rejected.

2.2 Along with Price bid (Part-II)The bidder shall indicate the price break-up details for each of the components

of Control system, sensors, panel, cables, etc and installation, testing &

Commissioning charges, spares price, freight, taxes & duties, packing &

forwarding charges, etc. only in the Price bid (Part-II).

2.3 Upon satisfactory completion of Pre Delivery Inspection of the Digital Controlsystem: “Pre-Delivery Inspection Report” shall be released, jointly by

Supplier & Purchaser’s Representative. Upon release of Pre-Delivery

Inspection Report, Purchaser will issue “Purchaser’s delivery clearance”. Only

upon receipt of the same, the vendor shall proceed with delivery of the Digital

Control system.

2.4 Along with the Consignment: The following documents should be provided

I. Instruction manual for Installation, operation, service / maintenance

(including trouble-shooting) of Digital Control system.

II. Instruction manuals (in English) for control system & controllers

II. Instruction manual for PLC software and hardware

III. Wiring diagrams of the Instrumentation system

V. Installation CD for PLC softwares

VI. Guarantee certificate.

VII. Wiring diagrams of the Electrical system including panel.

3. Packing & Forwarding:

The Digital Control system and accessories shall be packed in proper containerand secured rigidly to ensure safe transportation without any damage fromSuppliers site to IPRC.

4. Completion period:

Completion period shall be 6 Months from the date of Purchase Order.

**************

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Annexure - 1LIST OF EQUIPMENTS TO BE RETAINED/ REPLACED

MECHANICAL

Sl.No.

Item Description To be Retained To be Replaced

1. Vertically mounted Vacuum Chamber – I √ --

2. Vertically mounted Vacuum Chamber – II √ --

3. Dry Vacuum pump √ --

4. Heat Exchanger √ --

ELECTRICAL

Sl.No.

Item Description To be Retained To be Replaced

1. 72 Nos. of 1kW IR lamp for Chamber - I √ --

2. 30 Nos. of 1kW IR lamp for Chamber - II √ --

3. 42kVA, 420V/185V Transformer -- √

4. 18kVA, 420V/185V Transformer -- √

5. 100Amp, MCCB -- √

6. Ammeter, Voltmeter, Energy meter -- √

7.Panel and accessories like selector switches,Push buttons, Indication lamps, fuses etc.,

-- √

8. Thyristors and its control panel -- √

9. Power & control cables feeding to panel -- √

INSTRUMENTATION

Sl.No.

Item Description To be Retained To be Replaced

1. Electro Pneumatic Valves (7 Nos.) √ --

2. Solenoid valves (2 Nos.) √ --

3. Proportional Control valves (6’’ size, 4 - 20mA) √ --

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4. Proportional Control valves (4’’ size, 4 - 20mA) √ --

5. Pirani Gauges (3 Nos.) -- √

6. Capacitance Manometers (2 Nos.) -- √

7. k- Type thermo couples (7 Nos.) -- √

8. PT-100 RTD type temperature sensors (4 Nos.) -- √

9. EDWARDS active gauge controller (1 Nos.) √ --

10. Instrumentation & Sensor Cables -- √

11. Temperature programmer controller (2 Nos.) -- √

12. Over Temperature indicator controller (2 Nos.) -- √

13. Digital temperature indicator (4 Nos.) -- √

14. Vacuum controller (2 Nos.) -- √

15.Exchanger outlet temperature indicatorcontroller (1 Nos.)

-- √

16.Exchanger inlet temperature indicatorcontroller (1Nos.)

-- √

17.DRY pump Exhaust temperature indicator

(1 Nos.)-- √

20

Chamber - 1 Heater Configuration Diagram

Chamber - 2 Heater Configuration Diagram