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					                          GOVERNMENT OF INDIA
                          DEPARTMENT OF SPACE
                       ISRO SATELLITE CENTRE (ISAC)
                     AIRPORT ROAD, VIMANAPURA POST
                           BANGALORE 560 017


TENDER NOTICE NO.22 DATED 03/03/2005


On behalf of President of India, Head, Purchase & Stores, ISRO Satellite Centre
(ISAC) Bangalore 560 017 invites sealed tenders for the supply of the following
items:
                                                                          TENDER
SL
          TENDER                                                            FEE
NO                                BRIEF DESCRIPTION                QTY
         REFERENCE                                                        INCL OF
                                                                           S.TAX

01.   ISIP 2004000430    DEHUMIDIFIER UNIT                       01 No.    218.00

02.   ISIR 2004000638    SWITCHING MATRIX 400 CHANNELS           01 No.    218.00
                                                                 As Per
03.   ISIR 2004001270    UNIMATIC BLIND RIVERT                   Docu-     218.00
                                                                  Ment
                         POWER SUPPLY                              04
04.   ISIR 2004001240                                                      218.00
                                                                  Nos.

05.   ISIR 2004001253    MINIATURE PRESSURE TRANSDUCER           10Nos.    218.00


DUE DATE FOR RECEIPT OF TENDER: 18TH APRIL 2005 AT 1600HRS.(IST)
TENDER OPENING DATE           : 19TH APRIL 2005 AT 1000 HRS.
                                    :2:


NOTE:

  1. Those who desirous of not utilizing the website shown at clause 16 can
      also buy the tender documents from Asst Purchase Officer, Purchase &
      Stores Division, ISRO Satellite centre, Airport Road, Vimanapura PO.
      Bangalore 560 017, India on payment of non-refundable tender fee as
      indicated above, on all working days between 1400Hrs to 1600Hrs.
  2. Tender fee shall be payable only in the form of bank draft drawn in favour
      of Accounts Officer, ISRO Satellite Centre, payable at Bangalore. No
      other mode of payment for tender fee is acceptable.
  3. Venders/firms name and tender no. shall be indicated on the reverse side
      of the Demand Draft.
  4. While requesting for tender documents, please do not superscribe tender
      number and due date on the envelope.
  5. Detailed specification, terms and conditions are furnished in the tender
      documents.
  6. DD should not be dated prior to the date of advertisement / Intimation /
      website. Separate requests and demand drafts shall be sent for each
      tender document.
  7. ISAC will not be responsible for non-receipt of tender documents/offers
      due to postal delay / loss in transit.
  8. Quotations received without payment of tender fee will be treated as
      unsolicited.
  9. Indian agents while quoting on behalf of their principals are requested to
      provide necessary authorisation letter from their principals
  10. The offer should be valid for the period of ninety days from the date of
      opening.
  11. Quotations received after the due date and time will not be considered.
  12. While submitting your offer please super scribe tender no. and due date
      on the envelope.
  13. If tender opening date happens to be a public holiday tender will be
      opened on the next working day.
  14. No request for the extension of the due date will be considered.
  15. Head, Purchase and Stores ISAC reserves the right to accept or reject
      any tenders in part or full without assigning any reasons thereof..
  16. Tender documents are also available on ISRO Web site www.isro.org. of
      Tender Notice No.22 dtd 03.03.2005. Interested tenderers may, at their
      option, download the tender documents from website and submit offers
      along with the prescribed tender cost (In terms of Bank Draft) as per
      details in the tender notification.
ISIP 2004000430


                              DEHUMIDIFIER UNIT
                                       QTY. : 01 No.
Specifications:
        Solid desiccant type Dehumidifier unit and complete system for applications of
online dehumidification of ducted systems directed onto a specimen in a clean room
environment of class 100,000. Dehumidifier unit shall be fully automatic factory-
assembled packages unit complete with inlet filter for process air, process motor, process
fan, volume control dampers at outlet, desiccant rotor drive assembly, reactivation
electrical heaters, inlet pre-filters for reactivation air, regeneration motors & fan,
thermostats, automatic built-in electrical panel with humidistat, total frame & panels
powder coated and supplied with lifting lugs.


                             PERFORMANCE REQUIREMENTS

1. Type                                : Solid desiccant based, rotating wheel type
                                         dehumidifier

2. Capacity                            : ≥ 1200 CMH @ 20°C and ρ= 1.2 kg/m3 standard
                                         air conditions.

3. Moisture removal rate required      : ≥ 10.1 kg/hr.
                                              or
4. Process air outlet conditions for available inlet air conditions

    Sl.       Available inlet conditions    Required outlet conditions
    No.
    01.       DBT of 24 °C             DBT ≤ 50° C
    02.       RH of 55 ± 5 %           RH ≤ 10 %
    03.       Air cleanliness class of Cleanliness of air stream shall be same as
              100,000 class            inlet conditions, i.e. 100,000 class. No kind
                                       of any contaminations shall be added to the
                                       air stream by this unit.

5. Static pressure required in the air
   stream outlet (Available static pressure)   : ≥ 500 Pa
6. Type of regeneration                         : Electrical regeneration with counterflow
                                                  arrangement of process and reactivation
                                         air
                                                 streams.

7.Regeneration temperature                      : ≤ 130° C

8. Rotor type                                   : High performance corrigated chemical type
                                                  honeycomb rotor having a life span of
                                         more
                                                 than 10 years

9. Process and reactivation section             : Positive sealing arrangement between
                                                process and reactivation sections shall
                                                permit independent airflow and shall not
                                                require balancing of process and reactivation
                                                airflows within the unit. Seals shall be made
                                                with high temperature withstanding silicon
                                                rubber/Viton with minimal wear and tear
                                                composition.

10. Outlet hose/duct size                       : φ 220 mm (approx.) and duct shall be
                                provided
                                                   in horizontal axis.

11. Max. Noise level unducted                   : ≤ 85 dBA


                                      REQUIRED FEATURES

          The dehumidifier unit shall be equipped with :

   (i)       Hours run counter to monitor the number of hours the system is operational.

   (ii)      Blocked filter alarms.

   (iii)     Rotor stopped alarms

   (iv)      Humidity control system with alarm and display.

   (iv)      Replaceable process and reactivation filters.

   (v)       Face damper of low leakage design and are operated by a proportional
             actuator.
    (vi)      Total frame and panels shall be powder coated in white colour as a clean
              room installation requirements. The total unit shall have very good aesthetic
              appealing finish.

    (vii)     The unit should have it’s own structural steel skid with adjustable feet and the
unit
              shall be able to move using forklift or by lifting lugs.


III.       ELECTRICAL REQUIREMNTS


    (i) Control panel shall be in-biult with the unit. It shall be factory mounted and
        wired with fan motors/MCBs, auxiliary controls, over-load protectors,etc. Starting
        and                 stopping of the unit shall be sequenced by a humidistat sensor.
        Manual off-auto switch shall also be provided on dehumidifier panel. All switch
        gear of either Siemens , L&T or similar Reputed make only. Pre-wired &
        pre-tested electrical control board ready for connection to mains.

    (ii) IEC protective class for unit                   : IP 44

    (iii) IEC protective class for electrical panel      : IP 54


    (iv) Winding insulation standard for fan motor
         and drive motor                           : Class F

    (v) High temperature cut-out                         : 140 ± 5 °C, adjustable from 130°C
    to
                                                          170°C

    (vi) Amperage rating for remote on relay and
         alarm contacts                                  : 5A, 250 VAC (Max.)


                         IV.     UTILITIES REQUIREMENTS

       (a) Total Electrical power requirements           : ≤ 24 kW

       (b) Electrical ratings                            : The unit shall be suitable to either
                                                           230V AC, 50 Hz single phase or
                                                           440V AC, 50Hz, 3-phase electrical
                                                           supply.

       (c) Space requirements                            : Approx. 1500 X 1000 X1200 mm
                                                                   (L) X (B) X (H)
                               OPTIONAL REQUIREMENTS
                (QUOTE SEPARATELY)

      (i)       DH unit with By-pass dampers of low leakage design and are operated by
                proportional actuator to provide upto 100% bypass capabilities.

      (ii)      Stainless steel metal casing instead of powder coated steel casing.


                             ACCEPTANCE TESTS

Vendor/supplier should carry out acceptance tests which will be witnessed by
     our Engineers at vendor’s site prior to shipments.


                                    WARRANTY

      The supplier should provide a minimum of 1 year warranty for poor performance,
      workmanship, material or components defects.




                    STATEMENTS AND REFERENCES

      (i)       Vendor should provide compliance statements in point-wise for our
                specifications along with quote.

      (ii)      Deviations if any from our specifications should be clearly mentioned with
                merits.

      (iii)     Product catalog/leaflet in original/xerox copy shall be enclosed along with
                quote.

      (iv)      Vendor should provide product heritage for similar kind of units supplied
                elsewhere and shall also furnish customer’s name, address with Tel No.
                and fax. No. if any along with quote.

                     It may be noted that the offer received without above
             details/informations
                     will be rejected.

                                   ************************
ISIR 2004001253


SPECIFICATIONS FOR PRESSURE TRANSDUCER AND SIGNAL
CONDITIONER

I(a). Pressure Transducer – Titanium casing

Type of transducer                    Dynamic
Pressure range                        0 – 500 psi
Resonant frequency                    > 4MHz
Sensitivity                           < 0.5mV / psi
Non-linearity                         </- 0.5% of FSO
Zero measurand o/p                    <± 10m Vmax
Size                                  <dia.12mm x 16mm length
Mounting                              To be weldable
Case material                         Titanium alloy – Ti6AI4V
Supply voltage                        10 – 15 V DC
Quantity                              Quote in slabs of 5 nos. up to 20
                                      Nos Minimum order quantity to be
                                      mentioned by Vendor

I(b) Signal Conditioner

Type                                  Fully differential, signal ground isolated
                                      from case ground
Compatibility                         To be fully compatible with above
                                      transducer
Excitation Voltage                    To provide suitable excitation to the
                                      transducer
Output                                Single ended with one side connected
                                      to ground
Output range                          ± 5.0V
Display                               4 ½ digit display of pressure in psi, bar
                                      and mV
Control switch                        Zero adj. and gain adj.for calibrating
                                      transducer
Supply voltage                        2230 VAC, ±10%, single phase, 45 –
                                      65 Hz.
Quantity                              One No
Accessories                           Any other standard accessory may be
                                      quoted
ISIR 2004001270



UNIMATIC BLIND RIVERT

                                     QUANTITY

1. NAS 1919C 05S 02U             -    10,000 Nos.

2. NAS 1919C 05S 03U             -    3,000 Nos.



NOTE: TEST REPORTS OF MECHANICAL PROPERTIES (SINGLE SHEAR AND \

      ULTIMATE TENSILE) TO BE SUBMITTED ALONG WITH QUOTATION.
ISIR2004001240


SINGLE-OUTPUT 2000WATTS GPIB POWER SUPPLY

The required de power supply should have

•   Proven reliability, high efficiency and low noise operation
•   Option for programming the dc output and the protection
     Circuits either from the front panel or using industry standard
     SCPI commands via the GPIB
•   VXI Plugs & Play drivers for easy integration
•   Control option with analog signals for output voltage and current
•   Fan-speed control to minimize acoustic noise
•   Low ripple and noise
•   Accurate built-in measurement system should be for both current
    and voltage measurements
•   Provide over-voltage and over-current protection
•   Remote programming and sensing as built in feature


DC outputs
   Voltage / Current:0 to 120 V / 0 to 18A

Load regulation
    Voltage <0.002% + 4mV

Line regulation
     Current <0.005% + 1 mA

Ripple and noise(20Hz and above)
     Voltage <1.9mV rms/16 mV p-p
     Current <12 mA rms

Programming accuracy
     Voltage = 0.04% + 120 mV
     Current = 0.11% + 12 mA
Readback accuracy at 25º C
     Voltage = 0.05% + 180 mV
     Current = 0.1% + 18 mA

Resolution
     Voltage = 30 mV
     Current = 4.5 mA
     OVP = 215 mV


Transient response = 0.9msec to within 10mV for a change in output
current form full load to 50% load or vice versa.

Output Voltage Programming Response Time : within 195 msec for
full rate load form 10% to 90% or vce versa.

Command Processing Time : 20ms (Time to change in o/p voltage
after digital date is received by the supply)

DC floating Voltage : ± 240Vdc between output terminals and
Chassis ground

OutputCOmmon mode Noise Current :0.5mA rms, 4mA peak-to peak.

Weight , 32 kgs
Size to fit within a rack size of 5.5 in x 17 in x 25.5 in
Input = 230±10% Vac, 50Hz (approx)

Warranty : Minimum One year

Documentation : User Manual, Service Manual, Calibration
Certificate.
ISIR 200400638


Specifications for switching matrix

  1. 400 channels of 2 pole
  2. GPIB interfaceable
  3. Break before make
  4. Cross talk <-65 db at 1 MHZ
  5. Switching speed <1 msec
  6. Brake before make
  7. Trigger sources external trigger
  8. Operating Maximum voltage 250VDC
                         10
  9. Path isolation 10    ohms
  10. Rear connections
  11. Display dual line fluorescent
  12. Jitter <50 microsecs
  13. Integrates easily to DMM
  14. Full channel display
  15. Working with National instruments cards and Equipments
  16. Works under Labview software
  17. Maximum current 1 A
  18. mat able with 50 pin ITT male connector
  19. With all necessary supporting soft ware and hardware
  20. 1 year warranty extension
Block Diagram for testing Continuity , Cross continuity check, and
            Insulation measurement of Solar Panels




                                         300 wires from satellite
 PC                                      through ITT connector




                            Switching matrix
         HP
         METER

				
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