The Pulse Output Device (POD) converts the rotary motion of Liquid Controls flow meters into a high resolution, unscaled pulse stream that equal the volumetric measurements of the meter.
The Pulse Output Device mounts directly to the front cover of the flow meter in place of the packing gland. The motion of the meter’s blocking rotor is magnetically coupled through a stainless-steel wall to the electronics compartment of the POD. This eliminates the dynamic seal of the packing gland and isolates the electronics from the process fluid in the meter.
Pulse Output Device Features
- Glandless Drive: No dynamic seals to fail and leak.
- Unscaled Pulse Output: Easily adapts to remote totalizers, batch controllers, computers, PLC’s, and other pulse receiving devices.
- No Amplifier/Signal Conditioner Required: Simplifies integration with monitoring devices and control equipment, including the Truck III and Vega T electronic registers.
- Material Integrity: All wetted parts are 316 Stainless Steel or equivalent.
- Environmental Standards Compliance:
- Weights & Measures
- NEMA 4X
- Class I, Div. 1 & 2, Groups C & D
- DNV 11 ATEX 01600X
- IECEx DNV 11.0012X
- Pressure Ratings: 350 PSI (24 BAR) working pressure; Burst pressure exceeds 1,750 PSI (121 BAR).
- Weatherproof Design: UL/CSA Type 4X and IP66.
- Connectivity: ½” NPT conduit port with a removable screw terminal block.
- Output: High Resolution, Square Wave, Single or Dual Channel Pulse Output.
Specifications
- Voltage: 9 to 30 VDC; POD5 is 5 VDC.
- Current Supply: 50 mA maximum.
- Output Signal Resolution: 100 pulses per channel per revolution, unscaled.
- Waveform: Square Wave; Single channel output (channel A or channel B); Quadrature channel output channel A and channel B.
- Pulse Timing: Nominal 50% on and 50% off.
- Pulse Rise/Fall Time: <5 μs.
- Operating Temperature Range: -40 to 176 °F (-40 to 80 °C).
- Humidity Range: 0-100 %, noncondensing.
- Output Capacity: Current sinking 100 mA maximum in “ON” state; V+ supply @ 2.2 KΩ in “OFF” state.
- Optional Feature: Open Drain FET (Field Effect Transistor).
- FET Rating: 30 VDC maximum (drain to source voltage).
- Shock Resistance: 50 G’s for 10 ms.
- Vibration Tolerance: 1 G at 10-150 Hz.
- Electromagnetic Compatibility (EMI, RFI, etc.):
- EU Directive 2004/108/EC (EMC)
- IEC 61000 series
- ISO 7637-2
- Pulse Transmission Distance: Up to 5,000 feet (1,524 meters).
- Flow Direction: Operates in bidirectional flow applications.