PDFlo™ PDSR1 & PDSR2, Flocorp-Spur Gear Sensor

The PDFlo™ PDSR1 is a single hall effect sensor that is compatible with PDFlo Positive Displacement Flow Meters. This sensor detects the rotation of the flow meter’s gears and emits a frequency signal proportional to flow. The output signal is a square wave pulse which has a duty cycle of approximately 50%. The PDSR1 has signal outputs that are protected with a self- resetting fuse. This fuse has a 50mA nominal trip point. When a trip occurs, turn off power to the sensor and remove output load to reset fuse. The PDSR1 is supplied with a sinking (non-powered) output or a sourcing (powered) frequency output.

The PDFlo PDSR2 is a dual hall effect sensor that is compatible with PDFlo Positive Displacement Spur Gear Flow Meters. This microprocessor-based sensor can detect both uni- and bi-directional flow. The sensors’ mode of operation is determined by an output selection switch located inside the housing. The PDSR2 detects the rotation of the flow meter’s gears and emits a frequency signal proportional to flow. The output signal is a square wave pulse which has a duty cycle of approximately 50%. The signal outputs are protected with a self-resetting fuse. This fuse has a 50mA nominal trip point. When a trip occurs, turn off power to the sensor and remove output load to reset fuse. The PDSR2 is supplied with a sinking (non-powered) output or a sourcing (powered) frequency output.

Specifications

PDSR1

Supply Voltage	+ 10 to 28 VDC
Supply Current	8mA@ 12VDC, 12mA @ 24 VDC
Duty Signal	50% ± 15%
Minimum Signal	0.5 Hz
Frequency Output	Flow dependent, up to 2,000 Hz
Driving Capacity	50mA Max resistive load
Output Impedance	~ 40 Ohm - analog switch and self- resetting fuse
Temperature Range	-40ºF to 185ºF (-40º to 85ºC)
Classification	General Purpose: PDSR1- -GP; Explosion Proof: PDSR1- -XP

PDSR2

Supply Voltage	+ 10 to 27 VDC
Supply Current	18mA@ 12VDC, 25mA @ 24 VDC
Duty Signal	50% ± 15%
Minimum Signal	0.5 Hz
Frequency Output	Flow dependent, up to 2,000 Hz
Driving Capacity	50mA Max resistive load
Output Impedance	~ 40 Ohm - analog switch and self- resetting fuse
Temperature Range	-40ºF to 185ºF (-40º to 85ºC)

Download Datasheet: PDFlo™ PDSR1 & PDSR2, Flocorp-Spur Gear Sensor

Ref: FLo-corp.com