Editorial Technical Reference

Temperature Probe

This page explains how Temperature Probe is classified within Chemical Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

The Temperature Probe is a critical component of the Industrial Chemical Crystallization Unit, responsible for precise temperature monitoring and feedback.

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

Product Specifications

Technical details and manufacturing context for Temperature Probe

Definition
The Temperature Probe is a critical component of the Industrial Chemical Crystallization Unit, responsible for precise temperature monitoring and feedback. It ensures optimal crystallization conditions by detecting thermal variations in the solution, directly influencing crystal growth rate, size, and purity. The probe is designed for use in chemical manufacturing environments where accurate temperature control is essential for product quality and process efficiency. It features a robust construction with materials such as Stainless Steel 316L, PTFE, and Platinum, ensuring corrosion resistance and reliability in harsh chemical media. The probe offers a measuring range of -50 to 150 °C, covering typical crystallization temperatures, with an accuracy of ±0.1 °C (Class A tolerance per IEC 60751). Response time is 1–5 seconds in water at 0.4 m/s, allowing for rapid detection of thermal changes. The probe diameter ranges from 6 to 12 mm, and insertion lengths from 100 to 500 mm, with custom lengths available. Process connections are available in NPT sizes 1/2 to 1 inch, conforming to ASME B1.20.1. Operating pressure is 1.0–1.6 MPa, and operating temperature for continuous operation is -40 to 150 °C. The ingress protection rating is IP65–IP68 (IEC 60529), suitable for washdown and immersion. Supply voltage is 9–36 V DC with reverse polarity protection, and the output signal is a two-wire loop-powered 4–20 mA (IEC 60381-1). The sensor element is a thin-film Pt100 (IEC 60751), and the sheath material is 316L stainless steel (ASTM A269). Weight ranges from 0.2 to 1.5 kg, depending on length and connection. All specifications are reference values; verify model-specific details with the manufacturer.
Working Principle
The probe detects temperature changes via its sensing element, which is a thin-film Pt100 RTD. The RTD's electrical resistance increases with temperature in a predictable manner. The probe generates an electrical signal proportional to the temperature, which is transmitted to the unit's control system. The control system uses this signal to regulate heating or cooling, maintaining the desired crystallization temperature. The probe's response time of 1–5 seconds ensures timely feedback, allowing for adjustments to prevent supersaturation or nucleation issues. The 4–20 mA output signal is standard for industrial process control, enabling integration with existing control loops.
Common Materials
Stainless Steel 316L, PTFE (Polytetrafluoroethylene), Platinum
Technical Parameters
ParameterTypical rangeNotes & selection driver
Measuring Range-50–150 °CCovers typical crystallization temperatures
Accuracy±0.1 °CClass A toleranceIEC 60751
Response Time1–5 sIn water at 0.4 m/sIEC 60751
Probe Diameter6–12 mmSelectable for process port
Insertion Length100–500 mmCustom lengths available
Process Connection1/2–1 NPTThread sizeASME B1.20.1
Operating Temperature-40–150 °CContinuous operation
Ingress ProtectionIP65–IP68For washdown and immersionIEC 60529
Supply Voltage9–36 V DCReverse polarity protected
Output Signal4–20 mATwo-wire loop poweredIEC 60381-1
Sensor ElementPt100 ΩThin filmIEC 60751
Sheath Material316LCorrosion resistantASTM A269
Weight0.2–1.5 kgDepends on length and connection

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 Part
    Converts temperature into an electrical signal.
    Material: Platinum (for RTD) or Nickel-Chromium (for Thermocouple)
  • Protective Sheath Part
    Provides chemical and mechanical protection for the sensing element.
    Material: Stainless Steel 316L
  • Connection Head
    Houses electrical terminals and provides environmental sealing.
    Material: Aluminum or Stainless Steel
  • Signal Transmitter
    Converts the RTD resistance into the 4–20 mA loop signal the control system reads.

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 10 bar
flow rate: 0 to 2 m/s
temperature: -40°C to +150°C
slurry concentration: Up to 40% solids by weight
Media Compatibility
✓ Aqueous solutions ✓ Organic solvents ✓ Molten salts
Unsuitable: Hydrofluoric acid environments
Sizing Data Required
  • Process temperature range
  • Required insertion length
  • Response time specification

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Drift or calibration loss
Cause: Thermal cycling, aging of sensing element, or contamination buildup on probe surface causing inaccurate temperature readings over time
Mechanical damage or breakage
Cause: Vibration-induced fatigue, improper installation stress, or physical impact compromising probe integrity or electrical connections
Maintenance Indicators
  • Erratic or inconsistent temperature readings compared to known process conditions
  • Visible physical damage such as bent probe sheath, cracked insulation, or corrosion at connection points
Engineering Tips
  • Implement regular calibration checks against traceable standards and install vibration dampeners or protective thermowells in high-vibration environments
  • Use proper installation techniques with correct insertion depth and sealing, and ensure electrical connections are protected from moisture and corrosive atmospheres

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
ASTM E1137/E1137M-20 (Standard Specification for Industrial Platinum Resistance Thermometers) IEC 60751:2008 (Industrial platinum resistance thermometers and platinum temperature sensors)

Quoted from the published standard.

Manufacturing Precision
  • Temperature Accuracy: ±0.1°C at 0°C reference
  • Response Time: 90% of final value within 5 seconds in stirred water bath
Quality Inspection
  • Calibration Verification against NIST-traceable standards at multiple temperature points
  • Immersion Test to verify stem conduction error and proper sensor placement

Manufacturers of Temperature Probe

6 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.

HENGKO
Shenzhen, Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Xiamen Maxwell Automation Limited
Fujian, CN
Founded 2011
CE
Listed on the company's own website · profile compiled by CNFX from public sources
China Pogo Pin Supplier
Jiangsu, CN
Also makes: Probes, Printed Circuit Boards, Test Fixture and 1 more
Listed on the company's own website · profile compiled by CNFX from public sources
Hefei Jingpu Sensor Technology Co., Ltd.
Anhui, CN
Listed on the company's own website · profile compiled by CNFX from public sources
SemiShareProber
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Xi'an Yunyi Instrument Co., Ltd.
Shaanxi, 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.
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Frequently Asked Questions

What is the measuring range of the temperature probe?

The measuring range is -50 to 150 °C, which covers typical crystallization temperatures. However, always verify the exact range for your specific model and application with the manufacturer.

What output signal does the probe provide?

The probe provides a two-wire loop-powered 4–20 mA output signal, conforming to IEC 60381-1. This is a standard industrial signal for process control.

What materials are used in the probe construction?

The probe is made with Stainless Steel 316L, PTFE, and Platinum. The sheath material is 316L stainless steel, which offers corrosion resistance. Verify material compatibility with your process chemicals.

What is the ingress protection rating?

The ingress protection rating is IP65–IP68 per IEC 60529, suitable for washdown and immersion. Confirm the rating for your specific model, as it may vary with the connection type.

Data Basis

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

Preliminary Technical Classification
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