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DPT Torsion Paddle Flowmeter/Monitor
Brand: KOBOLD Instruments, Inc
The patented KOBOLD torsional paddle flow meter type DPT operates according to the diaphragm plate principle. For the first time, a flat torsion spring simultaneously acts as a mount for the paddle and as an elastic force.
The device thus operates with almost no wear. The paddle comprises a diaphragm plate and a lever arm. When the diaphragm plate is moved by the flow in the flow direction, the lever arm is deflected by the force of the leaf spring.
This angular motion is transferred non-contacting through the casing wall by a magnet to a Hall-effect sensor with no losses. Different measuring ranges and instrument sizes are realized with the geometry of the lever arm, the diameter and shape of the diaphragm plate as well as the height and thickness of the leaf spring.
Calibration nozzles can also be press-fitted to adapt the measuring ranges. The signal from the Hall-effect sensor is displayed by different electronic means and serves to monitor the volume flow.
Specifications
Brand
Accuracy
- ± 3 % of Full Scale
Ambient Temperature Range
- Maximum
Applications
- Chemical & Pharmaceutical
- Drinks & Semi-Luxury Food Industry
- Heavy Goods Industry
- Mechanical Engineering & Capital Equipment
BSP Connection
- G 1” Female
- G 1/2” Female
- G 1-1/2” Female
- G 2” Female
- G 3” Female
- G 3/4” Female
- G 3/8” Female
Display
- 3-Segment LED
- 5-Digits
Electrical Connectors
- M12 x 1 Plug Connector
Electrical Contacts
- 2 Normally Closed Contacts
- 2 Normally Open Contacts
Enclosure, Body Material
- 316Nb Stainless Steel
Environmental Protection
- IP65
Flow Rate
- 5 to 30 LPM to Water
- 850 to 1900 LPM to Water
Materials of Construction
- Calibration Nozzles: 316Ti Stainless Steel
Mounting Position
- Horizontal
Nominal Pressure
- psi: 40 (kPa: 276, bar: 2.76)
NPT Connection
- 1” NPT Female
- 1/2” NPT Female
- 1-1/2” NPT Female
- 2” NPT Female
- 3” NPT Female
- 3/4” NPT Female
- 3/8” NPT Female
Output
- 0-10 Vdc
- 30 Vdc / 5 A
- 4-20 mA
- 5 A Resistive Load
- 500 ohms Min.
- Maximum
Output Format
- PNP or NPN Semiconductor
- Relay/Changeover Contact
Power
- Power Supply: 24 Vdc
Process Temperature
- 80° C (176° F)
Seat / Seal Material
- Brass Version: NBR
- Stainless Steel Version: FPM
Spring Material
- Paddle, Spring Strip: 316Ti Stainless Steel
Supply Voltage
- 100-240 Vac ± 10 %
- 10-40 Vdc
- 18-30 Vac
- 24 Vdc ± 20 %
- 3-Wire Technology, Approximately 100 mA
Temperature Range
- Maximum