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IP65 Temperature Measurement Instruments Arc Furnace Temperature Measurement Device

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IP65 Temperature Measurement Instruments Arc Furnace Temperature Measurement Device

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Brand Name : Hongxin

Place of Origin : China

Price : Negotiable

Payment Terms : T/T,Western Union,D/P,D/A,L/C

Output Signal : 4-20mA / RS485

Power Supply : AC 220V / DC 24V

Response Time : Less than 1 second

Installation Type : Panel mount / Wall mount

Application : Furnace temperature and process monitoring

Operating Temperature : -20°C to 60°C

Protection Rating : IP65

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Temperature Measurement Instruments Used for Arc Furnace

Temperature is one of the most critical parameters in metallurgical furnace control. SAF and EAF require temperature measurement at multiple points including furnace chamber temperature, flue gas temperature, cooling water temperature, and molten steel/hot metal temperature.

1. Thermocouple

Type Measuring Range Features Applications
Type K -200~1300℃ Good linearity, low cost, moderate oxidation resistance Furnace chamber temperature, flue gas temperature
Type S 0~1600℃ High accuracy, good stability, high cost High-temperature melt measurement, long service life
Type B 0~1800℃ Excellent high-temperature stability, no compensation wire needed High-temperature furnace zone, corundum tube protection
Tungsten-Rhenium 0~2000℃+ Extremely high melting point (3300℃), 3x better oxidation resistance than Pt-Rh Ultra-high temperature melt (molten steel, hot metal)

2. RTD / Resistance Temperature Detector

Model Measuring Range Features Applications
Pt100 -200~600℃ High accuracy, good stability, excellent linearity Cooling water temperature, flue gas temperature (medium-low temp), transformer oil temperature
Pt1000 -50~500℃ Higher sensitivity, fast response Hydraulic station oil temperature, bearing temperature monitoring

3. Infrared Thermometer / Thermal Imager

Type Measuring Range Accuracy Features Applications
Handheld IR Thermometer -30~1000℃ ±1% or ±1℃ Portable, fast spot measurement Routine inspection, equipment surface temperature
Online Thermal Imager 0~1500℃ ±2% or ±2℃ Fully sealed, dust/water/EMI resistant Metallurgical furnace lining erosion monitoring, furnace temperature field distribution
Intrinsically Safe Mining Thermal Imager -20~700℃ ±2% or ±2℃ Explosion-proof certified, suitable for hazardous areas Gas zone, explosion-proof equipment monitoring
FalconTM EAF Measurement System 1500~1850℃ (Type C) ±10℃ Automated unmanned operation, fastest combined O2/temp measurement

4. Temperature Transmitter

Type Input Signal Output Signal Features Applications
Wired Temperature Transmitter Thermocouple/RTD/mV 4~20mA High accuracy, fast response Conventional wired monitoring systems
Wireless Temperature Transmitter RTD/T/C/mV/ohms WirelessHART® No cable required, reliability >99%, dual-chamber housing

5. Temperature Instrument Selection Reference

Temperature Measurement Scenario Recommended Instrument Selection Reason
Furnace chamber temperature (<600℃) Pt100 assembled RTD High accuracy, good stability
Furnace chamber temperature (600~1300℃) Type K thermocouple Good linearity, cost-effective
Furnace chamber temperature (>1300℃) Type S/B thermocouple High temperature resistance, good stability
Molten steel/hot metal temp (1200~1800℃) Tungsten-Rhenium thermocouple / Falcon system EMI resistant, high temp resistant, automated measurement option
Cooling water/oil temperature Pt100 RTD / Bimetal thermometer Matching measurement range, low cost
Furnace body surface/lining temp field Online IR thermal imager Non-contact, full-field temp measurement, lining erosion diagnosis
Vibrating/humid environments Wireless temperature transmitter No cables, maintenance-free, high reliability


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Arc Furnace Temperature Measurement Device

      
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