Infrared thermometers and thermal imagers - Optris products
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optris CTfast LT

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Pyrometer optris CTfast LT for extremely quick temperature measurements

The pyrometer optris CTfast LT is perfectly suited for especially quick measurements ,due to its extremely short response time of 6 ms. The unchoppered sensor allows a continuous temperature surveillance of fast processes in a spectrum of -50°C up to 975°C.

Important specifications

  • Temperature range:
    -50°C to 975°C
  • Spectral range: 8 to 14 µm
  • Response time: 6 ms at analogue interface
  • Price starts from $455.00 (plus VAT)

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Technical Details of the optris CTfast LT

 

Measurement Specifications

 

  • Temperature range (scalable via programming keys or software): -50°C to 975°C
  • Spectral range: 8 to 14 µm
  • Optical resolution (90% energy): 
    15:1 (LT15F)
    25:1 (LT25F)
  • System accuracy1)2) (at ambient temperature 23 ± 5°C): ± 1% or ± 2°C
  • Repeatability1)2) (at ambient temperature 23 ± 5°C): ± 0.75% or ± 0.75°C
  • Temperature resolution (NETD):
    0.2 K2)3) (LT15F)
    0.4 K2)3) (LT25F)
  • Response time4):
    analog output (90%): LT15F 9 ms, LT25F 6 ms
    digital output (50%): LT15F 4 ms, LT25F 3 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 to 120°C 
    electronics: 0°C to 85°C
  • Storage temperature: 
    sensing head: -40 to 120°C 
    electronics: -40°C to 85°C
  • Relative humidity: 10 - 95%, non condensing
  • Vibration: IEC 68-2-6: 3 G, 11-200 Hz, any axis
  • Shock: IEC 68-2-27: 50 G, 11 ms, any axis
  • Weight: 
    sensing head 40 g
    electronics 420 g

 

Electrical Specifications

 

  • Output / analog: 0/4 - 20 mA, 0 - 5 / 10 V or thermocouple J, K
  • Output / alarm: 24 V / 50 mA (open collector)
  • Output / digital: 0/10 V (10 mA) optional: relay: 2 x 60 V DC/42 V AC; 0.4 A; optically isolated
  • Digital interface (optional): USB, RS232 or RS485 , CAN, Profibus DP, Ethernet
  • 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: 1 m (standard), 3 m, 8 m, 15 m
  • 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

  • OPTCTLT15F: -50-975°C / 8-14 μm / 15:1 / 120°C / 1 m cable / 9 ms
  • OPTCTLT25F: -50-975°C / 8-14 μm / 25:1 / 120°C / 1 m cable / 6 ms

1) whichever is greater with dynamic noise compression
2) at object temperatures ≥ 20°C
3) at time constant 100 ms with smart averaging and Tobj 25°C
4) with dynamic adaption at low signal levels

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Areas of application for the pyrometer optris CTfast LT

The CTfast temperature sensor is ideally suited for temperature measurements of especially quick processes, e.g. the production of glass syringes during which the adherence process between the needle and the syringe can be optimally monitored and controlled.

The IR thermometer CTfast is also employed in the production of PET bottles, since during the compression of PET preforms, a certain temperature needs to be adhered to for ensuring the success of the process. The CTfast LT is a reliable assistant for this surveillance task requiring a punctiform measurement.

In the paper industry the device is employed as well, e.g. in printing machines for measurements of operating and paper temperatures.

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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.    

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