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PSR/PSE Paddle Switch
Brand: KOBOLD Instruments, Inc
The KOBOLD flow monitor types PSE and PSR are simple, reasonably-priced and reliable monitors of fluid motions.
Depending on the flow velocity/flow throughput, the baffle plate is deflected and it moves over the balance arm the permanent magnet into the operating range of the reed contact mounted outside the process fluid.
The leaf spring, which also serves as a support for the balance arm, forces the baffle plate back to its rest position when there is no flow.
KOBOLD baffle plate flow monitors are supplied completely assembled with pipe length up to nominal size 40. For bigger nominal pipe sizes the devices are supplied without pipe length for direct fitting and are screwed into standard T pieces or reducing pipes.
PTFE tape is used for sealing.
Specifications
Brand
Ambient Temperature Range
- Maximum
Applications
- Cooling Circuits
- Dry Running Protection for Pumps
- Lubrication Equipment
- Pipe Fracture Monitoring
- Prevention of Low Water Levels
Approvals & Certifications
- ATEX
- cCSAus
- CE
- Ex
- IEC Ex
BSP Connection
- G 1” Female
- G 1/2” Female
- G 1/4” Female
- G 1-1/2” Female
- G 1-1/4” Female
- G 3/4” Female
- G 3/8” Female
Cable Length
- 5 feet (1.5 metres)
Cable Material
- PVC
Electrical Contacts
- Bistable Reed Contact
- Changeover Contact
- N/C Contact
- N/O Contact
Electrical Rating
- Changeover Contact Standard: Max.
- Changeover Contact: 150 Vac / 0.3 A, Max.
- Changeover Contact: 40 Vac / 0.5 A, Max.
- N/O & N/C Contact Standard: Max.
- N/O & N/C Contact: 20 Vac / 2 A, Max.
- N/O & N/C Contact: 230 Vac / 0.18 A, Max.
- N/O N/C Contact & Changeover Contact (ATEX & IECEX): 60 Vac/dc, 2 A, 40 W, 20 VA, Max.
Enclosure / Body Material
- 304L Stainless Steel
- Brass 58
Environmental Protection
- IP65
Materials of Construction
- 304L Stainless Steel - Baffle Plate, Sleeve
- Glass-Fiber-Reinforced - Contact Tube
- Oxide Ceramic - Magnet
- Polymide - Contact Tube
Maximum System Pressure
- psi: 3,626 (kPa: 25,000, bar: 250)
Mounting Position
- Horizontal
NPT Connection
- 1” NPT Female
- 1/2” NPT Female
- 1/4” NPT Female
- 1-1/2” NPT Female
- 1-1/4” NPT Female
- 3/4” NPT Female
- 3/8” NPT Female
Pipe Connection
- 1” Pipe (DN 25)
- 1/2” Pipe (DN 15)
- 1/4” Pipe (DN 8)
- 1-1/2” Pipe (DN 40)
- 1-1/4” Pipe (DN 32)
- 2” Pipe (DN 50)
- 3” Pipe (DN 80)
- 3/4” Pipe (DN 20)
- 3/8” Pipe (DN 10)
- 4” Pipe (DN 100)
- 6” Pipe (DN 150)
- 8” Pipe (DN 200)
Process Temperature
- -10° to 110° C (14° to 230° F) - FPM-Seal
- -20° to 70° C (-4° to 158° F) - NBR-Seal
Seat / Seal Material
- FPM
- NBR
Sleeve Material
- 304 Stainless Steel
- Brass 58
Spring Material
- 301 Stainless Steel - Leaf Spring, Balance Arm
Switch Point Range
- Water: 2.5-4.8 to 383-533 LPM
Tolerance
- ± 15 % at 37° C (98.6° F)