Positive Displacement flow meter with Pulse output

A Positive displacement flowmeter is a flow metering instrument that directly measures the clean liquid total flow rate by periodically filling and discharging the fluid volume in a precision measuring chamber. It is mainly used to measure clean liquid such as diesel, fuel, crude oil, lubricants, chemical raw materials, and food grade fluids, especially suitable for situations where liquid measurement accuracy is strictly required.

Its core advantage lies in high measurement accuracy (0.2% ~0.5%), unaffected by changes in fluid viscosity, and no need for upstream and downstream straight pipe sections during installation.

Traditional PD flow meters often use mechanical pointer to display cumulative flow. With the increasing demand for automation, pulse output positive displacement flow meters have emerged. Its advantage lies in the real-time conversion of flow signals into electrical pulse signals (such as PNP or NPN pulse), which facilitates integration with control systems such as PLC and DCS, enabling remote data transmission, instantaneous flow calculation, batch control, and automated management, greatly improving the intelligence level and control efficiency of process industries.

PULSE OUTPUT TRANSMITTER

4.1 Overview

The BGF series transmitter is a rotary shaft angular displacement sensor that, when used with our company's positive displacement flow meters, can convert the flow of the measured medium into electrical pulse signals for remote transmission. It is an explosion-proof transmitter.

4.2 Technical Specifications - Common Features

• 1. Non-contact, square wave output, reliable signal transmission
• 2. Signal frequency proportional to flow rate
• 3. Operating ambient temperature: -10°C to 60°C
• 4. Explosion-proof rating: ExdⅡBT5
• 5. Output adapter size: Explosion-proof type, internal thread G1/2"
• 6. Cable entry bore size: Explosion-proof type Φ11
• 7. High precision, anti-vibration, especially suitable for quantitative filling applications

4.3 BGF-I Transmitter Technical Specifications

1. Operating voltage: DC12V ± 10% 2. Output signal: • Voltage pulse high level > 9V • Voltage pulse low level < 0.5V 3. Three-wire system (positive power, signal, power ground)

4.4 BGF-II Transmitter Technical Specifications

1. Operating voltage: DC24V ± 10% 2. Output signal: • Voltage pulse high level > 20V • Voltage pulse low level < 1V 3. Three-wire system (positive power, signal, power ground)