Editorial Technical Reference

Field Sensors

This page explains how Field Sensors is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Devices installed at process locations to measure physical variables and transmit data to control systems.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Field Sensors

Definition
Field sensors are measurement devices deployed directly at process points within industrial systems to monitor variables such as temperature, pressure, flow, level, and composition. They convert physical phenomena into electrical signals that are transmitted to controllers for monitoring, regulation, and optimization of industrial processes. These sensors are typically housed in stainless steel with ceramic sensing elements or silicon-based semiconductors, and polymer seals ensure environmental protection. They operate over a measuring range of 0–100 mm (custom ranges available), with an accuracy of ±0.5% FS (better than ±0.25% optional) per IEC 60770. The output signal is 4–20 mA (HART protocol available) per IEC 60381, and the supply voltage is 9–36 V DC with reverse polarity protection. Operating temperature ranges from -40 to 85 °C (extended -40–125 °C optional) per IEC 60068-2-1, and operating pressure is 1.0–1.6 MPa. Ingress protection is IP65–IP67 (IP68 available for submersible) per IEC 60529, with a response time of ≤10 ms per IEC 61298-2. Process connection is G1/2 per ISO 228-1, wetted parts are 316L stainless steel (Hastelloy C optional) per ASTM A240, and weight is 0.2–0.5 kg depending on configuration. These sensors are used in various industrial processes for monitoring and control. When selecting a field sensor, verify model-specific values and standards with the legal manufacturer or supplier, as the listed parameters are reference ranges. Proper installation and calibration are essential for accurate measurement. Maintenance signals include drift, erratic readings, or failure to communicate, which may indicate sensor degradation or process issues. The boundaries of operation are defined by the specified ranges; exceeding them can lead to inaccurate readings or sensor damage.
Working Principle
Field sensors operate by detecting changes in physical properties such as temperature, pressure, vibration, and converting these changes into standardized electrical signals (4-20mA, 0-10V, digital protocols) that can be transmitted over distances to control systems for processing and decision-making. The sensing element responds to the physical variable, and the signal conditioning circuitry converts the response into a proportional electrical output. This output is then transmitted via the output signal interface to a controller, which uses the data for monitoring, regulation, and optimization. The sensor's accuracy and response time are critical for real-time control. The operating principle relies on the physical property change being within the specified measuring range and environmental conditions. For example, a pressure sensor uses a diaphragm that deflects under pressure, changing the resistance or capacitance of the sensing element. The sensor must be properly installed and calibrated to ensure accurate conversion. The output signal can be analog or digital, depending on the protocol used. The sensor's performance is influenced by temperature, pressure, and other environmental factors, so the specified operating ranges must be respected.
Common Materials
Stainless steel housing, Ceramic sensing elements, Silicon-based semiconductors, Polymer seals
Technical Parameters
ParameterTypical rangeNotes & selection driver
Measuring Range0–100 mmCustom ranges available
Accuracy±0.5 % FSBetter than ±0.25% optionalIEC 60770
Output Signal4–20 mAHART protocol availableIEC 60381
Supply Voltage9–36 V DCReverse polarity protected
Operating Temperature-40–85 °CExtended range -40–125 °C optionalIEC 60068-2-1
Ingress ProtectionIP65–IP67IP68 available for submersibleIEC 60529
Response Time≤10 msFor step inputIEC 61298-2
Process ConnectionG1/2Other threads availableISO 228-1
Material (Wetted Parts)316LHastelloy C optionalASTM A240
Weight0.2–0.5 kgDepends on configuration

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
  • Sensing Element
    Detects and converts physical phenomena into electrical signals
    Material: Strain gauge, thermocouple, or piezoelectric crystal
  • Signal Transmitter
    Amplifies and conditions raw sensor signals for transmission
    Material: Electronic circuitry with semiconductor components
  • Protective Housing
    Shields internal components from environmental conditions
    Material: Stainless steel or industrial-grade polymer
  • Process Connection Part
    Provides mechanical interface to process equipment
    Material: Stainless steel or brass
  • Electrical Connection
    Terminal for power and signal wiring
    Material: Copper terminals with polymer insulation

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Field Sensors.

Applied To / Applications

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

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 100 bar
flow rate: 0 to 10 m/s
temperature: -40°C to 85°C
slurry concentration: 0 to 30% solids
Media Compatibility
✓ Water-based fluids ✓ Oil-based fluids ✓ Natural gas
Unsuitable: Highly corrosive acids (e.g., concentrated sulfuric acid)
Sizing Data Required
  • Process media type
  • Required measurement accuracy
  • Communication protocol compatibility

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Signal Drift
Cause: Sensor calibration degradation due to environmental factors (temperature fluctuations, humidity, vibration) or electronic component aging, leading to inaccurate readings over time.
Physical Damage
Cause: Exposure to harsh conditions (corrosive chemicals, extreme temperatures, mechanical impact) or improper installation causing sensor housing breach, wiring damage, or sensing element failure.
Maintenance Indicators
  • Inconsistent or erratic readings compared to known process conditions or redundant sensors
  • Visible physical damage (cracks, corrosion, loose connections) or audible alarms from monitoring systems indicating sensor fault
Engineering Tips
  • Implement regular calibration schedules and environmental protection (e.g., enclosures, vibration dampening) based on manufacturer specifications and operating conditions
  • Use proper installation techniques (correct mounting, cable management, sealing) and install redundant sensors in critical applications for cross-verification and failover capability

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 10816-1:2017 (Vibration measurement and evaluation of machines) ANSI/ISA 12.12.01-2015 (Electrical equipment for hazardous locations) CE Marking (EU compliance for safety, health, and environmental protection)

Quoted from the published standard.

Manufacturing Precision
  • Measurement Accuracy: +/-0.5% of full scale
  • Temperature Stability: +/-0.1°C over operating range
Quality Inspection
  • Environmental Stress Screening (ESS) for durability
  • Calibration Verification against NIST-traceable standards

Manufacturers of Field Sensors

2 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

DEGSON
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Shandong Renke Control Technology Co., Ltd.
Shandong, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

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Frequently Asked Questions

What physical variables can field sensors measure?

Field sensors can measure temperature, pressure, flow, level, and composition, as well as other variables like vibration. The specific variable depends on the sensor type and configuration. The listed parameters include measuring range, accuracy, and output signal, which should be verified for the intended application.

What output signals are available?

The standard output signal is 4-20 mA, which is common in industrial applications. HART protocol is available for digital communication over the same wires. Other protocols may be available depending on the model. The output signal standard is IEC 60381.

What is the operating temperature range?

The standard operating temperature range is -40 to 85 °C, with an extended range of -40 to 125 °C optional. This is per IEC 60068-2-1. Ensure the sensor is used within the specified range to maintain accuracy and avoid damage.

How should I verify the specifications for my application?

The specifications listed are reference ranges. You must verify model-specific values and standards with the legal manufacturer or supplier. Consider the process conditions, such as pressure, temperature, and media compatibility, and confirm that the sensor meets your requirements.

Data Basis

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

Preliminary Technical Classification
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