Signal Converter / Transmitter for Sanitary Flow Meters

Product Specifications

Technical details and manufacturing context for Signal Converter / Transmitter

Definition

The Signal Converter / Transmitter is a critical electronic component used in sanitary flow meters. It receives raw measurement signals from flow sensors—typically magnetic, ultrasonic, or Coriolis elements—and converts them into standardized output signals such as 4-20 mA, 0-10 V, or digital protocols like HART or Profibus. These signals are then transmitted to monitoring or control systems for process automation in hygienic applications. The device amplifies and conditions low-level electrical signals, applies calibration and linearization algorithms, and converts them to industry-standard output formats. It maintains signal integrity and isolation, ensuring reliable data transmission. The converter is housed in a 316L stainless steel enclosure with PTFE/PFA seals and epoxy-encapsulated electronics, offering ingress protection rated IP65–IP67 (IEC 60529). It operates on a supply voltage of 12–36 V DC, with reverse polarity protection, and supports input and output signals of 4–20 mA with HART protocol. Accuracy is ±0.1% of span, and response time is ≤100 ms with adjustable damping. The device can handle process temperatures from -40 to 150 °C (sensor dependent) and an operating temperature range of -40 to 85 °C for electronics. Isolation voltage is 1500 V AC (input to output, per IEC 61010), and load resistance ranges from 0 to 600 Ω at 24 V supply. Weight varies from 1.2 to 2.5 kg depending on housing. All values are reference ranges; verify model-specific specifications with the legal manufacturer or supplier.

Working Principle

The Signal Converter / Transmitter receives low-level electrical signals from flow sensors, typically magnetic, ultrasonic, or Coriolis elements. It amplifies and conditions these signals, applies calibration and linearization algorithms, and converts them to standardized output formats such as 4-20 mA, 0-10 V, or digital protocols like HART/Profibus. The device transmits the converted signals via wired or wireless interfaces while maintaining signal integrity and isolation. It includes adjustable damping to filter noise and ensures accurate transmission to control systems.

Common Materials

316L Stainless Steel, PTFE/PFA Seals, Epoxy Encapsulated Electronics, Sapphire/Glass Windows

Technical Parameters

Parameter	Typical range	Notes & selection driver
Input Signal	4–20 mA	HART protocol supported
Output Signal	4–20 mA	HART protocol supported
Supply Voltage	12–36 V DC	Reverse polarity protected
Accuracy	±0.1 %	of span
Operating Temperature	-40–85 °C	Electronics only
Process Temperature	-40–150 °C	Sensor dependent
Ingress Protection	IP65–IP67	NEMA 4X equivalentIEC 60529
Housing Material	316L	Stainless steelASTM A240
Weight	1.2–2.5 kg	Depending on housing
Response Time	≤100 ms	Adjustable damping
Isolation Voltage	1500 V AC	Input to outputIEC 61010
Load Resistance	0–600 Ω	At 24 V supply

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 surface-mount components
A/D Converter
Converts analog signals to digital for processing

Material: Integrated circuit chip
Microprocessor
Executes calibration algorithms and signal processing

Material: Microcontroller chip
Output Driver
Generates standardized output signals

Material: Power transistors and op-amps
Housing Part
Protects electronics and provides sanitary mounting

Material: 316L stainless steel
Electrical Connector Part
Provides power and signal connections

Material: Stainless steel with gold-plated contacts
Signal Isolation Stage
Galvanically separates the sensor side from the output side so ground loops and spikes cannot corrupt the reading.

Applied To / Applications

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

Sanitary Flow Meter

View system integration details

Manufacturers of Signal Converter / Transmitter

Manufacturer profiles associated with Signal Converter / Transmitter.

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Frequently Asked Questions

What output signals does this signal converter support?

It supports standardized output signals such as 4-20 mA (with HART protocol) and 0-10 V, as well as digital protocols like HART or Profibus. The specific output options depend on the model; verify with the manufacturer.

What is the accuracy of this signal converter?

The accuracy is ±0.1% of span. This is a reference value; actual accuracy may vary with the specific model and application, so confirm with the supplier.

What are the environmental limits for operation?

The electronics can operate in temperatures from -40 to 85 °C, while the process temperature range is -40 to 150 °C (sensor dependent). The housing offers ingress protection IP65–IP67 (IEC 60529). Always verify these limits for your specific installation.

Is the signal converter isolated from the process?

Yes, it provides isolation voltage of 1500 V AC between input and output, per IEC 61010. This helps protect control systems from electrical interference. Confirm isolation ratings with the manufacturer for your application.

Data Basis

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

Preliminary Technical Classification

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pressure:	0 to 10 bar
flow rate:	0.1 to 100 m³/h
temperature:	-40°C to +85°C
slurry concentration:	Up to 15% solids by weight

Signal Converter / Transmitter

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards