Flow Meter Transmitter | Electronics/Transmitter Component

Product Specifications

Technical details and manufacturing context for Electronics/Transmitter

Definition

The electronics/transmitter is a component used in flow meter systems. It receives raw electrical signals from flow sensors, such as magnetic, ultrasonic, or turbine sensors, and processes them through amplification, filtering, and linearization circuits. The processed signals are then converted into standardized output signals, typically 4-20 mA, 0-10 V, or digital protocols like HART, Modbus, or Profibus, for transmission to PLCs, SCADA systems, or other monitoring and control equipment. This component is essential for accurate flow measurement and integration into industrial control systems. It is designed for use in machinery and equipment manufacturing, particularly in process automation. The transmitter's housing is typically made of stainless steel or aluminum alloy, and it includes a printed circuit board with integrated circuits and other electronic components. It features reverse polarity protection, operates on a 24 V DC supply (24 ±10%), and provides a 4-20 mA output signal compliant with IEC 60381-1. Accuracy is ±0.1% of full scale (FS) per IEC 60770-1. The operating temperature range is -40 to 85 °C for electronics, with process temperature up to 120 °C for remote mount configurations. Operating pressure is 1.0 to 1.6 MPa, and ingress protection is IP65 to IP67 per IEC 60529. The enclosure material is 316L stainless steel (optional Hastelloy C-276), and weight ranges from 1.2 to 2.5 kg. Response time is ≤100 ms per IEC 61298-2, with adjustable damping up to 60 s. Electrical connection is M20×1.5 per IEC 60079-0, and process connection is G1/2 per ISO 228-1. Always verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The transmitter receives low-level electrical signals from flow sensors, which are proportional to flow rate. These signals are conditioned through input circuits, amplified to usable levels, and processed by analog-to-digital converters (ADCs) or digital signal processors (DSPs) for accuracy and linearity correction. The processed data is then converted back to analog or digital output signals that represent the measured flow rate with high precision and stability. The output signal is standardized for compatibility with control systems.

Common Materials

Printed Circuit Board (PCB), Integrated Circuits (ICs), Electronic Components (resistors, capacitors, transistors), Housing (typically stainless steel or aluminum alloy), Connectors (electrical terminals)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Supply Voltage	24 ±10% V DC	Reverse polarity protected
Output Signal	4–20 mA	HART protocol availableIEC 60381-1
Accuracy	±0.1 % FS	Including linearity and hysteresisIEC 60770-1
Operating Temperature	-40–85 °C	Electronics only; sensor limits may differ
Process Temperature	-40–120 °C	Higher with remote mount
Ingress Protection	IP65–IP67	IP67 for submersible applicationsIEC 60529
Enclosure Material	316L	Optional Hastelloy C-276ASTM A240
Weight	1.2–2.5 kg	Depends on housing and options
Response Time	≤100 ms	Adjustable damping up to 60 sIEC 61298-2
Electrical Connection	M20×1.5	Cable gland or plug connectorIEC 60079-0
Process Connection	G1/2	Other threads availableISO 228-1

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Signal Conditioning Circuit
Amplifies and filters raw sensor signals to usable levels

Material: PCB with electronic components
Microprocessor/DSP Part
Processes signals for linearization, temperature compensation, and calibration

Material: Integrated circuit
Output Driver
Converts processed signals to standardized output format

Material: PCB with output transistors/ICs
Power Supply Module
Regulates and distributes power to all electronic components

Material: PCB with voltage regulators and capacitors
Communication Interface
Enables digital communication and configuration via protocols

Material: PCB with communication ICs and connectors
Analog-to-Digital Converter Optional
Digitises the conditioned sensor signal before linearisation and compensation.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Flow Meter

View system integration details

Manufacturers of Electronics/Transmitter

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Frequently Asked Questions

What is the supply voltage requirement?

The supply voltage is 24 V DC with a tolerance of ±10%. The device is reverse polarity protected.

What output signals are available?

The standard output is 4-20 mA, compliant with IEC 60381-1. HART protocol is available as an option.

What is the accuracy of the transmitter?

The accuracy is ±0.1% of full scale (FS), including linearity and hysteresis, per IEC 60770-1.

What are the temperature limits?

The operating temperature for electronics is -40 to 85 °C. Process temperature can be up to 120 °C with remote mount configuration.

Data Basis

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Preliminary Technical Classification

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pressure:	0 to 100 bar
flow rate:	0 to 10 m/s
temperature:	-40°C to 85°C
slurry concentration:	0 to 30% solids by weight

Electronics/Transmitter

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