Signal Transmitter/Amplifier for Oxygen Sensors

Product Specifications

Technical details and manufacturing context for Signal Transmitter/Amplifier

Definition

The signal transmitter/amplifier is a critical electronic component used in oxygen sensor and analyzer systems. It receives weak electrical signals from the sensing element, amplifies them to usable levels, and transmits the processed signals to monitoring or control systems. This component ensures signal integrity, reduces noise, and provides proper interfacing between the sensor and external equipment. It is designed for industrial environments and is typically housed in a corrosion-resistant stainless steel enclosure (316L) with ingress protection ratings from IP54 to IP65. The device operates on a supply voltage of 9–36 V DC and accepts a standard 4–20 mA input signal, providing an isolated 4–20 mA output for PLC or DCS systems. Key performance parameters include an accuracy of ±0.1% FS (per IEC 60770), a temperature coefficient of ±0.01%/°C over -20 to 70 °C, and an operating temperature range of -40 to 85 °C (per IEC 60068-2-1). The isolation voltage is 1500 V AC (per IEC 61010), and the load resistance is 0–600 Ω for a 24 V supply. The response time is ≤10 ms for a 10–90% step change. The device weighs between 0.2 and 0.5 kg depending on housing and options. Materials include a printed circuit board, semiconductor components, and copper conductors. This product is a component intended for integration into larger systems; it is not a standalone analyzer. All listed values are reference ranges and must be verified for the specific model and application with the legal manufacturer or supplier. Standards mentioned are procurement references and do not imply certification or compliance of any particular unit.

Working Principle

The signal transmitter/amplifier receives low-level analog signals from oxygen sensing elements. It amplifies these signals using operational amplifier circuits, applies signal conditioning such as filtering and linearization, and converts the signal to appropriate output formats like 4–20 mA, 0–10 V, or digital protocols. The processed signal is then transmitted to control systems while maintaining signal accuracy and isolation. The device ensures that the weak sensor signal is boosted to a level suitable for long-distance transmission and interfacing with PLCs, DCS, or other monitoring equipment. It also provides electrical isolation between input, output, and power to prevent ground loops and protect downstream electronics.

Common Materials

Printed Circuit Board, Semiconductor components, Copper conductors

Technical Parameters

Parameter	Typical range	Notes & selection driver
Input Signal	4–20 mA	Standard process current loop input
Output Signal	4–20 mA	Isolated output for PLC/DCS
Supply Voltage	9–36 V DC	Wide input range for industrial use
Accuracy	±0.1 % FS	Includes nonlinearity, hysteresis, repeatabilityIEC 60770
Temperature Coefficient	±0.01 %/°C	Max drift over -20 to 70 °C
Operating Temperature	-40–85 °C	Storage and operation rangeIEC 60068-2-1
Isolation Voltage	1500 V AC	Input to output to powerIEC 61010
Load Resistance	0–600 Ω	Max for 24 V supply
Response Time	≤10 ms	10–90% step response
Ingress Protection	IP54–IP65	Housing protection for industrial environmentsIEC 60529
Housing Material	316L SS	Corrosion-resistant stainless steelASTM A240
Weight	0.2–0.5 kg	Depends on housing and options

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

Operational Amplifier IC
Primary signal amplification circuit

Material: Semiconductor
Signal Conditioning Circuit
Filters and processes raw sensor signals

Material: PCB with electronic components
Output Driver
Converts amplified signal to standard industrial output format

Material: Transistor/MOSFET components
Electrical Isolation
Keeps sensor side, output side and supply galvanically apart so no ground loop forms.

Applied To / Applications

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

Oxygen Sensor/ Analyzer

View system integration details

Manufacturers of Signal Transmitter/Amplifier

Manufacturer profiles associated with Signal Transmitter/Amplifier.

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Frequently Asked Questions

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

The typical input signal is a 4–20 mA current loop, which is standard in industrial process control. This range is used to represent the sensor's measurement range.

What output signals are available?

The device provides an isolated 4–20 mA output, which is suitable for interfacing with PLCs or DCS systems. Other output formats may be available depending on the model, but the listed specification is 4–20 mA.

What is the isolation voltage rating?

The isolation voltage is 1500 V AC between input, output, and power, as referenced in IEC 61010. This helps prevent ground loops and protects connected equipment.

What is the operating temperature range?

The operating temperature range is -40 to 85 °C, as per IEC 60068-2-1. This allows the device to be used in a wide range of industrial environments.

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
other spec:	Signal Input Range: 0-10V or 4-20mA, Output Range: 4-20mA, Accuracy: ±0.1% FS
temperature:	-40°C to 85°C

Signal Transmitter/Amplifier

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards