What is pulse output on a water meter?
When it comes to water meters, a pulse output is simple SPST (single pole, single throw) dry contact reed switch. The switch is normally open. Certain meters allow for a choice of which dial to use for the pulse output, thus determining the volume of water that is represented by a pulse.
What is pulse in flowmeter?
Pulse flow meter refers to a type of flowmeter that can express flow in pulse form. The common pulse flow meter is the turbine flowmeter. The turbine flowmeter outputs pulse signals and is suitable for use with computer control systems such as secondary displays, PLCs, and DCS.
What is the flow rate on a water meter?
Meter Capacity Chart
| Meter Size (IN) | Maximum Flow Rate (GPM) |
|---|---|
| 1 | 50 |
| 1 1/2 | 100 |
| 2 | 160 |
| 3 | 500 |
What does pulse output mean?
In the case of an electricity meter, a pulse output corresponds to a defined amount of energy passing through the meter (kWh/Wh). For single-phase domestic electricity meters (e.g. the Elster A100c) each pulse usually equals one Wh (1000 pulses per kWh).
Why is the pulse output accuracy better than analog output?
That’s because it’ll give you more accuracy between the device and the flow computer. The computer will calculate the volume using the flow rate because the pulse from the device will depict only the flow rate most of the time. Analog will provide only low accuracy in your application.
What is a pulse output?
How do pulse flow meters work?
Magnets embedded in the paddlewheel blades spin closely past an all-important pick-up switch buried inside the sensor body. As the magnet passes the pickup switch, the switch closes and opens (pulses) in direct proportion to the frequency of the passing magnets, more water means more pulses.
How do you calculate flow rate from flow meter?
Figure 1. Flow rate is the volume of fluid per unit time flowing past a point through the area A. Here the shaded cylinder of fluid flows past point P in a uniform pipe in time t. The volume of the cylinder is Ad and the average velocity is ¯¯¯v=d/t v ¯ = d / t so that the flow rate is Q=Ad/t=A¯¯¯v Q = Ad / t = A v ¯ .
What is pulse input?
The pulse input module receives pulsating inputs from instrumentation and human interface subsystems in electronic form, counts them (serial to parallel conversion) into its computer equivalent (counter form), and passes the counter value to the processor over the bus for further processing.
