Pyrometer optris CThot LT for high ambient temperatures

The pyrometer optris CThot LT has been developed for the most extreme conditions in high-temperature areas and is acclaimed for its especially high temperature resistance. Employment of the inrared thermometer in ambient temperatures of up to 250°C (482 °F) without additional cooling poses absolutely no problems.

Due to the mentioned features, the IR pyrometer is especially suited for applications in driers, in tempering for metal and glass industries, in the processing of plastics and textiles, and in the semiconductor production. By request, the IR thermoemters are available in an explosion-safe design with ATEX certificate.

Important specifications

• Temperature range:
  -40°C to 975°C
  (-40 °F to 1787 °F)
  
• Spectral range: 8 to 14 µm
• Response time: 100 ms
• Starting at $755
  

Technical Details of the optris CThot LT

Measurement Specifications

• Temperature range (scalable via programming keys or software):
   -40°C ... 975°C (-40 °F ... 1787 °F)
  
• Spectral range: 8 to 14 µm
• Optical resolution (90% energy): 10:1, 2:1
  
• System accuracy¹⁾ (at ambient temperature 23 ± 5°C [73.4 ±41 °F]):
   ± 1% or ± 1.5°C²⁾ (± 2.7 °F)²⁾
  
• Repeatability¹⁾ (at ambient temperature 23 ± 5°C [73.4 ±41 °F]):
   ± 0.5% or ± 0.5°C²⁾ (± 0.9 °F)²⁾
  
• Temperature resolution (NETD): 0.25 K
  
• Response time: 100 ms
  
• Emissivity / Gain (adjustable via programming keys or software):
   0.100 - 1.100
• Transmissivity (adjustable via programming keys or software):
   0.100 - 1.100
• Signal processing (parameter adjustable via programming keys or software, respectively): 
  peak hold, valley hold, average, extended hold function with threshold and hysteresis
  

General Specifications

• Environmental rating: IP 65 (NEMA-4)
• Ambient temperature: 
  sensing head:
  -20°C ... 250°C (-4 °F ... 482 °F) 
  electronics:
  0°C ... 85°C (32 °F ... 185 °F)
  
• Storage temperature: 
  sensing head:
  -40 ... 250°C (-40 °F ... 482 °F) 
  electronics:
  -40°C ... 85°C (-40 °F ... 185 °F)
  
• Relative humidity: 10 - 95 %, non condensing
• Shock: IEC 60068-2-27 (25 G and 50 G)
  
• Vibration:
  • IEC 60068-2-6 (sinus shaped)
  • IEC 60068-2-64 (broadband noise)
• Weight: 
  sensing head:
  40 g (1.4 oz) (without high mass housing)
  electronics:
  420 g (14.8 oz)
  

Electrical Specifications

• Output / analog:
  channel 1: 0/4 - 20 mA, 0 - 5/10 V, thermocouple J, K
  channel 2:
  sensing head temperature (-40 ... 250°C [-40 °F ... 482 °F] as 0 - 5 V or 0 - 10 V), alarm output
  
• Output / alarm: 24 V / 50 mA (open collector)
• Optional: relay: 2 x 60 V DC/42 V AC_eff; 0.4 A; optically isolated
• Output / digital (optional): USB, RS232, RS485, Modbus RTU, Profibus DP
• Output impedances: 
  mA max. 500 Ω (with 8-36 V DC)
  mV min. 100 kΩ load impedance
  thermocouple 20 Ω
• Inputs: programmable functional input for external emissivity setting /ambient temperature compensation, trigger (reset of hold functions)
• Cable length: '
  3 m (standard), 8 m, 15 m (3.3 ft [standard], 9.8 ft, 26.2 ft, 49.2 ft)
  
• Power supply: 8-36 V DC
• Current draw: max. 100 mA

Versions

Part number: temperature range / spectral range / optics / max. ambient temperature / cable length / response time

• OPTCTLT02H: -40 ... 975°C (-40 ... 1787 °F) / 8-14 μm / 2:1 SF /
  250 °C (482 °F) / 3 m (9.8 ft) high temperature cable
• OPTCTLT10H: -40 ... 975°C (-40 ... 1787 °F) / 8-14 μm / 10:1 SF /
  250 °C (482 °F) / 3 m (9.8 ft) high temperature cable

¹⁾ whichever is greater
²⁾ at object temperatures ≥ 20°C (77 °F)

Areas of application for the pyrometer optris CThot LT

Due to its unique stainless steel measuring head, capable of resisting temperatures of up to 250°C (482 °F), the infrared thermometer optris CThot LT can be universally employed for the measurement of non-metallic surfaces in hot surroundings.

It is suitable for use in driers and ovens, tempering facilities of metal and glass industries, plastics and textile processing, and semiconductor production.

Additional downloads (manuals and STEP files) for the pyrometers of the compact series

Infrared software optris Compact Connect included

The temperature analysis software optris Compact Connect has been developed specifically for the extensive documentation and analysis of temperature measurement data of our stationary infrared thermometers. It is license-free and included in every pyrometer shipment.