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Summary of Contents for PKP DS11
- Page 1 Instruction Manual DS11 Plastic variable area flowmeter with glass measuring tube 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 www.pkp.de...
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Page 2: Table Of Contents
Proper Usage The flowmeters of the DS11 series are used to monitor the continuous flow of liquids and gases. Any other use of the instrument is prohibited and outside the scope of application. Unless otherwise stated, the scales of the devices refer to air at 1.2 bar abs. At 20 °C or water. -
Page 3: Functional Description
Qualified Personnel The DS11 devices may only be installed by trained, qualified personnel who are able to mount the devices correctly. Qualified personnel are persons, who are familiar with assembling, installation, placing in service and operating these devices and who are suit- ably trained and qualified. -
Page 4: Limit Switches
For switching performance and electrical data refer to section "Technical data". Electrical connections: Connection of limit switch - 2-wire NAMUR (standard): 1 Lower limit switch to terminal 1 2 Upper limit switch to terminal 2 The connection box includes an EMC filter unit. DS11 Instruction manual 11/2021 page 4... - Page 5 When connecting to an EMC filter, the ground terminal must be connected to the back rail of the flowmeter. Connection of limit switch - 3-wire (transistor): bn - brown: supply voltage + bk - black: switch bu - blue: supply voltage - DS11 Instruction manual 11/2021 page 5...
- Page 6 The EMC filter unit and the back rail of the meter must be galvanically connected and grounded. An isolation switching amplifier with intrinsically safe circuit controls is necessary to operate the NAMUR limit switches. DS11 Instruction manual 11/2021 page 6...
- Page 7 For the proper initialisation after power up, the bistable NAMUR limit switch should pass through each of 1 and 2 once. 3-wire limit switch, transistor Independent of the float position and passage 2: signal ≤1 V Prerequisite: the float is outside the limit switch. Switching performance DS11 Instruction manual 11/2021 page 7...
- Page 8 Use a 3 mm pin to tighten the turnbuckle by turning 4 to max. 5 times in 120° • increments 3 in a clockwise direction. CAUTION! To avoid breakage, the measuring glass must be positioned centrically between the gaskets. Test the leak tightness by suitable measures prior to start-up. DS11 Instruction manual 11/2021 page 8...
- Page 9 The cables must be laid with a loop 3 upstream of the measuring device to prevent • water from getting into the housing. The cable feedthroughs 2 must be tightened. • Close the unused cable feedthroughs with blanking plugs 1 • DS11 Instruction manual 11/2021 page 9...
- Page 10 The limit switches with ring diameters of 15 mm / 0.6" as max. contact can only be used up to 60 l/h / 15.8 GPH water or 2400 l/h / 89.3 SCFH air (outer diameter of the measuring glass). DS11 Instruction manual 11/2021 page 10...
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Page 11: Maintenance And Care
4. To release the measuring tube, turn the retainer in the base of the device counter- clockwise. The tube can now be removed. To reinstall the tube, follow the above instructions in reverse order. DS11 Instruction manual 11/2021 page 11... - Page 12 0,5...5000 Nl/h air Description: Typical applications: The flowmeters DS11 operate according to the proven vari- Variable area flowmeters model DS10 are mainly used for able area principle. The flowing media moves a float upwards measuring and monitoring the flow rate of low- viscous liquid against gravity in a conical measuring tube.
- Page 13 1 mA passage from top to bottom 3 mA passage from bottom to top (monostabile or 3-wire contacts on request) PKP Prozessmesstechnik GmbH +49 (0) 6122-7055-0 • T +49 (0) 6122 7055-50 Borsigstr. 24 • D-65205 Wiesbaden info@pkp.de • www.pkp.de...
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