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Pyrometer optris CTfast LT for extremely quick temperature measurements
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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.

  • Temperature range:
    -50°C to 975°C
  • Spectral range: 8 to 14 µm
  • Response time: 6 ms at analogue interface

Applications:

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.

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.  

 

Measurement Specifications

  • Temperature range (scalable via programming keys or software): -50°C ... 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 ... 120°C 
    electronics: 0°C ... 85°C
  • Storage temperature: 
    sensing head: -40 ... 120°C 
    electronics: -40°C ... 85°C
  • Relative humidity: 10 - 95%, non condensing
  • Shock: IEC 60068-2-27 (25G and 50G)
  • Vibration:IEC 60068-2-6 (sinus shaped), IEC 60068-2-64 (broadband noise)
  • 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 , Modbus RTU, 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