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Instruction Manual

DS02

Miniature Variable Area Flowmeter and Switch 

- All Metal for high pressures - 

PKP Prozessmesstechnik GmbH

Borsigstraße 24

D-65205 Wiesbaden-Nordenstadt

Tel.: ++49-(0)6122-7055-0

Fax: ++49-(0)6122-7055-50

Email: [email protected]

Summary of Contents for DS02.1

Page 1: ...ual DS02 Miniature Variable Area Flowmeter and Switch All Metal for high pressures PKP Prozessmesstechnik GmbH Borsigstraße 24 D 65205 Wiesbaden Nordenstadt Tel 49 0 6122 7055 0 Fax 49 0 6122 7055 50 Email info pkp de ...

Page 2: ...device must have read and understood the operating instructions and in particular the safety instructions The liability of the manufacturer expires in the event of damage due to improper use non observance of this operating manual use of insufficiently qualified personnel and unau thorized modification of the device Proper Usage The variable area flowmeters of the DS02 series are used exclusively ...

Page 3: ...se a safety risk for operators Dangerous substances For dangerous media such as e g Oxygen Acetylene flammable or toxic substances as well as refrigeration systems compressors etc must comply with the relevant regulations beyond the general rules Qualified Personnel The DS02 devices may only be installed by trained qualified personnel who are able to mount the devices correctly Qualified personnel...

Page 4: ...scale and pointer mechanism 6 Process connection inlet Switch point adjustment scale A scale is applied to the device body to which the desired switch point can be adjusted Display scale On the device a display housing is mounted with integrated indicator scale and pointer movement The pointer on the scale indicates the current flow value DS02 Instruction manual 03 2020 page 4 ...

Page 5: ...fluence the magnetic field of the device Keep a space of minimum 100 mm to those materials e g steel changes in cross section branch offs or arcs in the pipe system impair measuring accuracy Ensure that the unimpeded flow sections are maintained in front of instrument 10 x nominal diameter behind the instrument 5 x nominal diameter Never reduce the pipe diameter immediately before the device in th...

Page 6: ... of flow Only install the flow monitor in one of the positions displayed in the drawing The medium must flow in the direction of the arrow from a low to a high scale value DS02 Instruction manual 03 2020 page 6 ...

Page 7: ...power The Reed contact integrated in the switching unit is very sensible to electrical over load Danger of overload is given by the following applications inductive load capacitive load lamp load Inductive Load Inductive loads consist e g of relay contactors solenoid valves motors electric engines etc WARNING Voltage spikes at shut down up to 10 times of nominal voltage Protective measures example...

Page 8: ...e directly connected to the input terminals of a PLC without problems RC Circuits as protective measures Boucherot cell Snubber In practice the following values of resistor capacitor cells give good results Nevertheless the values given in the following tables are only recommendations for general purposes But it cannot be guaranteed that for specific applications more adequate Boucherot cells may ...

Page 9: ...A 20 VA 2 SPDT 150 VAC DC 1 A 20 VA 125 VAC DC 1 A 20 VA 3SM Ex N O gas 30 V 0 101 A 0 76 W dust 30 V 0 25 A 0 75 W gas 30 V 0 101 A 0 76 W dust 30 V 0 25 A 0 75 W 3UM Ex SPDT DS02 2 1 2 1 N O 230 V 3 A 60 VA 125 V 3 A 60 VA 230 V 3 A 60 VA 2 SPDT 250 V 1 5 A 50 VA min load 3 VA 125 V 1 5 A 50 VA min load 3 VA 2X SPDT for SPS 250 V 1 A 60 VA 3SM Ex N O gas 30 V 0 101 A 0 76 W dust 30 V 0 25 A 0 75...

Page 10: ...t with connector acc to EN 175301 803 Normally Open NOC Change Over COC Switch position under no flow condition Switch position under no flow condition The ground pin is not used The ground pin is not used DS02 Instruction manual 03 2020 page 10 ...

Page 11: ...ge Over COC Switch position under no flow condition Switch position under no flow condition Switching contact with cable The individual cores of the cable are numbered according to the following connection dia gram Normally Open NOC Switch position under no flow condition DS02 Instruction manual 03 2020 page 11 ...

Page 12: ...tact with connector acc to EN 175301 803 Normally Open NOC Change Over COC Switch position under no flow condition Switch position under no flow condition The ground pin is not used The ground pin is not used DS02 Instruction manual 03 2020 page 12 ...

Page 13: ...nder no flow condition Switch position under no flow condition Switching contact with cable The individual cores of the cable are numbered according to the following connection dia gram Normally Open NOC Change Over COC Switch position under no flow condition Switch position under no flow condition DS02 Instruction manual 03 2020 page 13 ...

Page 14: ...r 2 Slide the switch contact to the flow value to be monitored Make sure that the arrow on the switch contact label is in exact alignment with the desired flow value on the body scale 3 Re tighten the switch contact housing set screws 1 using a screwdriver Observe the correct tightening torque of 0 4 Nm The set switch point corresponds to the switch off point of the switch contact by decreas ing f...

Page 15: ...t Switch contact is permanently switched Flow is too high or the switch contact is set too low Reduce the flow Adjust the switch contact to a higher flow rate Use the device at another measuring range Switch contact is permanently switched Float is stuck Disassemble and clean the device Switch contact is defective Remedy the cause of the defect short circuit overload Replace the switch contact The...

Page 16: ...enance work Visual inspection for dirt soiling Visual inspection for free movement of float Visual inspection for leaks from the device Check function of switch contact For detailed information on maintenance and cleaning of the device please refer to a separate manual Please ask for them if required Degree of protection IP Code Process connection Specification of connection material Degree of pro...

Page 17: ...is encapsulated in a continuously adjustable housing and thus protected from external influences When the float reaches the position of the Reed contact the switch will close With higher flows the float moves further upward until it reaches a built in float stop still keeping the switch closed This ensures a bistable switch function at any time An external pointing instrument is magnetically coupl...

Page 18: ...ly DS02 1 W101 5 60 ml min L1002 0 6 2 2 Nl min W102A 40 130 ml min L1006 1 7 6 0 Nl min W106 0 1 0 6 l min L1008 2 5 8 0 Nl min W11 0 2 1 2 l min L1012 3 12 Nl min W12 0 4 2 l min L1022 3 22 Nl min W13 0 5 3 l min L1024 7 24 Nl min W15 1 0 5 l min L1034 12 34 Nl min L1056 16 56 Nl min L1080 20 80 Nl min only DS02 2 W202 0 02 0 2 l min L2010 2 5 10 Nl min W206 0 2 0 6 l min L2020 5 5 20 Nl min W21...

Page 19: ...S 49 0 6122 7055 0 T 49 0 6122 7055 50 info pkp de www pkp de Switching capacity Type Size Contact function Angle plug IP65 M12x1 plug IP67 Cable connection 1 m IP67 DS02 1 1 4 1 N O 140 VAC 0 7 A 20 VA 200 VDC 1 A 20 VA 125 VAC 0 7 A 20 VA 125 VDC 1 A 20 VA 140 VAC 0 7 A 20 VA 200 VDC 1 A 20 VA 2 SPDT 150 VAC DC 1 A 20 VA 125 VAC DC 1 A 20 VA 3SM Ex N O gas 30 V 0 101 A 0 76 W dust 30 V 0 25 A 0 ...

Page 20: ...or operating densities deviating from the specified specifications increase the specified measuring error Special scales for different media and operating conditions are available on request The specified switching points are shut off points at falling flow rates Please note that the switch on points are higher due to the hysteresis For applications where pressure surges are to be expected please ...

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