Signal Transmitter/Converter for Flow Measurement

Product Specifications

Technical details and manufacturing context for Signal Transmitter/Converter

Definition

The Signal Transmitter/Converter is a critical electronic component within flow measurement systems. It receives raw electrical signals from flow sensor elements such as turbine, ultrasonic, or electromagnetic sensors, processes these signals, and converts them into standardized output formats typically 4-20 mA, 0-10 V, or digital protocols like HART, Modbus, or Profibus. These outputs are suitable for transmission to PLCs, SCADA systems, or other industrial control equipment. The device ensures that flow rate measurements are accurately represented and communicated to monitoring and control systems. It is designed for use in machinery and equipment manufacturing, particularly in industrial process control applications. The transmitter/converter typically includes a printed circuit board (PCB) with electronic components such as ICs, resistors, and capacitors, housed in an aluminum or stainless steel enclosure with electrical terminals for connections. Key parameters include input and output signals of 4-20 mA, a supply voltage of 24 V DC ±10%, accuracy of ±0.1% of full scale, operating temperature range of -40 to 85 °C, storage temperature range of -40 to 100 °C, humidity range of 0-95% RH (non-condensing), ingress protection rating of IP65 to IP67 per IEC 60529, isolation voltage of 1500 V AC per IEC 61010, response time of ≤100 ms for a 90% step change, load resistance of 0-600 Ω for current output, and weight of 0.5-1.5 kg depending on housing material. These values are reference ranges and must be confirmed for the specific model and application. The working principle involves receiving low-level electrical signals, amplifying and conditioning them through internal circuitry, applying calibration and linearization algorithms, and outputting standardized industrial signals. This component is essential for reliable flow measurement and control in industrial environments. Always verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The transmitter/converter receives low-level electrical signals from flow sensor sensing elements. These signals are amplified and conditioned through internal circuitry, which includes filtering and signal shaping. Calibration and linearization algorithms are applied to correct for sensor non-linearities and ensure accurate representation of flow rate. The processed signal is then converted into a standardized output format, such as 4-20 mA current loop or digital protocols, suitable for transmission to control systems. The device also provides isolation between input, output, and power to prevent interference and ensure safety. The output signal accurately represents the flow rate measurement, enabling monitoring and control systems to respond appropriately.

Common Materials

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

Technical Parameters

Parameter	Typical range	Notes & selection driver
Input Signal	4–20 mA	Standard analog input from sensors
Output Signal	4–20 mA	Standard analog output for control systems
Supply Voltage	24 ±10% V DC	Typical industrial DC supply
Accuracy	±0.1 % FS	Includes linearity, hysteresis, repeatability
Operating Temperature	-40–85 °C	Extended range for industrial environments
Storage Temperature	-40–100 °C	Non-operating storage limits
Humidity Range	0–95 % RH	Non-condensing
Ingress Protection	IP65–IP67	Dust-tight and water-resistantIEC 60529
Isolation Voltage	1500 V AC	Input/output/power isolationIEC 61010
Response Time	≤100 ms	For 90% step change
Load Resistance	0–600 Ω	Maximum for current output
Weight	0.5–1.5 kg	Depends on housing material

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, filters, and linearizes raw sensor signals

Material: PCB with electronic components
Microprocessor/ASIC
Processes signals and implements calibration algorithms

Material: Semiconductor silicon
Output Driver Circuit
Generates standardized output signals (current, voltage, or digital)

Material: PCB with power transistors and components
Power Supply Module
Provides regulated power to internal circuits

Material: PCB with voltage regulators and capacitors
Housing/Enclosure Part
Protects internal electronics from environmental factors

Material: Aluminum alloy or stainless steel
Isolation Stage
Separates input, output and power sides so field noise cannot cross into the measurement.

Applied To / Applications

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

Flow Sensor

View system integration details

Manufacturers of Signal Transmitter/Converter

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Frequently Asked Questions

What is the typical input signal for this transmitter/converter?

The typical input signal is 4-20 mA analog from flow sensors, but it may also accept other low-level signals depending on the model. Always check the datasheet for specific input requirements.

What output protocols are supported?

Standard outputs include 4-20 mA, 0-10 V, and digital protocols like HART, Modbus, or Profibus. The exact protocols depend on the model and configuration.

What is the operating temperature range?

The operating temperature range is -40 to 85 °C, with storage temperature from -40 to 100 °C. Ensure the device is used within these limits to maintain performance.

How do I verify the accuracy and standards compliance?

Accuracy is ±0.1% of full scale, and standards like IEC 60529 for ingress protection and IEC 61010 for isolation are referenced. Confirm these values and compliance with the manufacturer for your specific model.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0 to 100 bar
flow rate:	0 to 1000 L/min
temperature:	-40°C to 85°C
slurry concentration:	0 to 30% solids by weight

Signal Transmitter/Converter

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards