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Ultrasonic Flow Sensors & Integrator (Calculator)
Features:
Simply operation
Integral wall and DIN-rail mounting bracket
Pulsed or M-Bus output options
Long life ultrasonic flow meter
Technical Overview
Ultrasonic flow sensors have no moving parts in the volume flow, this makes them almost wear free and
noiseless. They measure the flow by using the transit time principle, one ultrasonic signal is launched in the flow
direction and one against the flow direction. The flow rate is concluded by the delay time measured, this
information is then transmitted to the calculator by the way of electronic pulses.
The calculator uses the latest innovative technology to calculate heat usage from heating systems. With its
dynamic measuring cycle even the smallest energy consumptions are reliably collected. The large multifunction
display permanently shows the heat consumption total, and by using the button is it possible to scroll through
the display to show all data.
Tel:
E-mail:
+44 (0) 1732 861200 -
© 2012 Sontay Limited. All rights reserved
MW-U
sales@sontay.com -
Date of Issue: 12/03/2013
Web:
www.sontay.com
MW-U
Issue Number: 5.3
Page 1 of 8
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Summary of Contents for Sontay MW-U
- Page 1 Tel: E-mail: Web: +44 (0) 1732 861200 - sales@sontay.com - www.sontay.com © 2012 Sontay Limited. All rights reserved...
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Page 2: Specification
It can be programmed for the meter to be installed in the flow, but this must clearly be stated at the time of order. Tel: E-mail: Web: +44 (0) 1732 861200 - sales@sontay.com - www.sontay.com © 2012 Sontay Limited. All rights reserved... -
Page 3: General Information
The device is maintenance-free during the service life. Repairs can only be made by the manufacturer. Declaration of Conformity Sontay Ltd declares that this product with the number of the EC type examination certificate DE-08-MI004-PTB012 complies with the requirements of the EC directives 2004/22/EC (Measuring instruments directive) and 89/336/ EEC (electro-magnetic compatibility). - Page 4 Installation heat calculator Sontay recommends mounting the calculator on the wall. Do not mount the device at the pipe or attach it directly on the flow sensor. The mounting adapter at the backside of the calculator can be used for DIN-rail mounting or “reverse” for wall mounting.
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Page 5: Error Codes
However, should the symbol be displayed over a longer period of time you should contact Sontay. Error codes show faults detected by MW-MD. If more than one error... - Page 6 Operating Pressure, max. PN bar 16/25 Pressure loss at Qn bar 0,14 0,06 0,13 0,2 0,06 0,12 0,1 0,16 0,14 Weight 8 11 13 Tel: E-mail: Web: +44 (0) 1732 861200 - sales@sontay.com - www.sontay.com © 2012 Sontay Limited. All rights reserved...
- Page 7 Date month val. Input 1 Temperature difference Customer number Flow Input 1 device number Maximum flow Input 2 device number Instantaneous power Maximum power Tel: E-mail: Web: +44 (0) 1732 861200 - sales@sontay.com - www.sontay.com © 2012 Sontay Limited. All rights reserved...
- Page 8 Software version Whilst every effort has been made to ensure the accuracy of this specification, Sontay cannot accept responsibility for damage, injury, loss or expense from errors or omissions. In the interest of technical improvement, this specification may be altered without notice.
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