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Honeywell C7195A Product Handbook
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Honeywell C7195A Product Handbook

Water flow sensor
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Table of Contents

WATER FLOW SENSOR
APPLICATION
The sensor is primarily designed to measure the Domestic
Hot Water (DHW) flow rate in domestic appliances as follows:
 Combi boiler
 Instanteneous Water Heater (IHW)
 Other systems such as applications where the
instanteneous DHW is produced from district heat
input.
General
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Technical
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C7195A
PRODUCT HANDBOOK
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EN2R- -9029 0101R2- -NE
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Summary of Contents for Honeywell C7195A

  • Page 1: Table Of Contents

    C7195A WATER FLOW SENSOR PRODUCT HANDBOOK APPLICATION The sensor is primarily designed to measure the Domestic Hot Water (DHW) flow rate in domestic appliances as follows:  Combi boiler  Instanteneous Water Heater (IHW)  Other systems such as applications where the instanteneous DHW is produced from district heat input.

  • Page 2: Description

    DESCRIPTION The C7195A is a mechanical water flow sensor (fig. 2.). Electronic A turbine rotates with water flow. The turbine supports a Controller magnet which rotates in front of a Hall effect sensor. This Hall effect sensor picks up the field of the magnet giving a pulsed output.The output is directly proportional to the water...

  • Page 3: Typical Applications

    TYPICAL APPLICATIONS The C7195A sensor is designed to measure the Domestic Hot Water (DHW) flow rate in appliances as follows:  Combi boiler (instanteneous or with small buffer)  Instanteneous Water Heater (IWH), gas or electric powered.  Other systems where DHW is produced instantaneously...

  • Page 4: Specifications

    SPECIFICATIONS Model C7195A water flow sensor Ambient temperature --20 ... + 85 _C Dimensions See fig. 11. Fig. 6. Not recommended mounting position Fluid Water for sanitary use Measuring range 2.1 ... 30 liter/min Permissible fluid temperatur 0 ... 80 _C Nominal output frequency f = Q x 7.0 (Q = flow rate in l/min;...

  • Page 5: Electrical Specifications

    C7195A 1029: see fig 8. C7195A 1037: see fig 9. Fig. 7. Electrical connection C7195A 1003/1011 Lead wire length C7195A 1003: 500 mm C7195A 1011: 1000 mm with 550 mm insulation tube C7195A 1029: 160 mm AWG24 UL1430 C7195A 1037: 250 mm Electrical code...

  • Page 6: Performance

    PERFORMANCE Design life 10,000 hour continious operation at 10 l/minute at 20 _C 7,000 hour continious operation at 10 l/minute at 45 _C 100,000 cycles operation (ON = 5 s/OFF = 5 s) at 10 l/minute at 45 _C. After life test accuracy must be within ±5% of measured value at first stage.

  • Page 7: General Considerations

    The waterflow to the inlet of the flow sensor should be undisturbed to meet the accuracy specifications. If a device causes significant flow disturbance at the inlet of the device, contact your Honeywell representative. EN2R- -9029 0101R2- -NE...

  • Page 8: Dimensional Drawing

    DIMENSIONAL DRAWING 12.5 “ 30.5 MODEL C7195A 1003 WATER FLOW SENSOR Max.Temp: 80 _C Max.Press.:1.72 MPa Made in Japan 30.5 >PPS< 9635 “ * Cable connection A 1029 Fig. 11. Dimensional drawing C7195 EN2R- -9029 0101R2- -NE...

  • Page 9: Standards And Approvals

    United Kingdom Byelaws and Regulations Certificate N0. 9711081, and can therefore be used in potable water applications. Other countries in general accept this certification. For more details please contact Standards and Appprovals department, Honeywell Combustion Control Center NL05. EN2R- -9029 0101R2- -NE...

  • Page 10: Ordering Information

    ORDERING INFORMATION Ordering Specification number A 9999 7 1 9 Water flow sensor Specification number Mechanical type (turbine) Fig. 12. Model number chart C7195A water flow sensor EN2R- -9029 0101R2- -NE...

  • Page 11: Associated Products

    W7073C series for Combi boiler application Temperature sensors T7335 series(NTC thermistor probes), many options available. Home and Building Control Combustion Controls Center Europe Honeywell BV Phileas Foggstraat 7 7821 AJ Emmen The Netherlands Tel: +31 (- - )591 695911 Fax: +31 (- - )591 695200 http://europe.hbc.honeywell.com...

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