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DFS2 Doppler Flow Switch
INSTRUCTION
MANUAL
DFS2
DOPPLER FLOW SWITCH
(With rate indicator)
UK / Europe Office
Tel: +44 (0)845 9000 601
Fax: +44 (0)845 9000 602
info@omniinstruments.co.uk
www.omniinstruments.co.uk
Australia / Asia Pacific Office
Tel +61 (0)282 442 363
Fax +61 (0)294 751 278
info@omniinstruments.com.au
www.omniinstruments.com.au
Instruction Manual 2009
Rev 3
USA / Canada Office
Tel +1-866-849-3441
Fax +1-866-628-8055
info@omniinstruments.net
www.omniinstruments.net
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Summary of Contents for Omni Instruments DFS2
- Page 1 Instruction Manual 2009 Rev 3 DFS2 Doppler Flow Switch INSTRUCTION MANUAL DFS2 DOPPLER FLOW SWITCH (With rate indicator) UK / Europe Office Australia / Asia Pacific Office USA / Canada Office Tel: +44 (0)845 9000 601 Tel +61 (0)282 442 363...
- Page 2 DFS2 Doppler Flow Switch Doppler Flow Switch - DFS2 Introduction The Doppler Flow Switch - DFS2 measures the velocity of fluids in pipelines using a totally non-intrusive principle. NB! It is intended for use with sewage, pulps, mining slurries, and other fluids which contain in excess of 0,1% suspended solids or bubbles.
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Page 3: Power Input
• If used for pump protect either power the DFS2 from the pump circuit or close reset contact allowing normal flow conditions to be established before T2 timer times out. - Page 4 Instruction Manual 2009 Rev 3 DFS2 Doppler Flow Switch Adjustments Range Selection : (refer JP1) Range 1 (0 – 2 m/s) :- Jumper in position “1” Range 2 (0 – 6 m/s) :- Jumper in position “2” Setting Low Flow Trip Point : Move slide switch “S1”...
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Page 5: Mounting The Transducer
Mounting the Switch The DFS2 electronics is housed in a water resistant housing, which should be mounted in a location where the ambient temperature is within the range stated in the specifications i.e. -10°C to 50°C. -
Page 6: Troubleshooting
Instruction Manual 2009 Rev 3 DFS2 Doppler Flow Switch Trouble Shooting Relay Operates With No Flow Possible Cause - Trip points set too low - Vibration on pipe Corrective Action - Adjust trip points above 0 m/s - Relocate transducer... -
Page 7: Specifications
Instruction Manual 2009 Rev 3 DFS2 Doppler Flow Switch Specifications Measuring Range 0.3 to 2.0 m/s (1) 0.3 to 6.0 m/s (2) Set Points 0 to 100% of Range Timer Delays 0 to 60 seconds Output 1 Relay - 1Amp SPDT...