Optris CT LT20, Smallest infrared pyrometer, 22:1, temperature range [-50 .. 975°C]

The pyrometer OPTRIS CT LT  is equipped with one of the world’s smallest infrared sensors with a high optic resolution for precise non-contact temperature measurement. Additionally, it offers a high variability due to selectable analog outputs as well as several digital interfaces in the electronics box.

Features:

• One of the smallest infrared sensors worldwide with 22:1 optical resolution
• Rugged and usable up to 180°C ambient temperature without cooling
• Separate electronics with easy accessible programming keys and LCD backlit display
• Selectable analog output: 0/4-20 mA, 0-5 V, 0-10 V, thermocouple type K or J
• Optional USB, RS485, RS232 interface, relay outputs (2 x optically isolated), CAN-Bus, Profi bus DP, Ethernet
• Installation of up to 32 sensing heads
• Optional Explosion proof version (ATEX): CTex

Compact Connect Software

Real-time data, full device parametrization, suitable for IR Thermometers of Optris CS, CSmicro Series and CT Series

• No additional cost
• No limitation in licensing
• Modern software with intuitive user interface
• Complete parametrization of sensors via Software
• Setup of multiple sensors in different windows
• Data recording for detailed analysis and documentation

Optional accessories: see below You might also like

Measurement Specifications

• Temperature range (scalable via software):
  -50°C … 975°C (LT22)
  -50°C … 600°C (LT15)
  -50°C … 600°C (LT02)

• Spectral range: 8 to 14 µm
• Optical resolution (90% energy):
  22:1
  15:1
  2:1

• CF-lens (optional):
  0.6 mm @ 10 mm (LT22)
  0.8 mm @ 10 mm (LT15)
  2.5 mm @ 23 mm (LT02)
  
  
• System accuracy  *1) *2) (at ambient temperature 23 ± 5°C): ± 1% or ± 1°C
• Repeatability  *1) *2) (at ambient temperature 23 ± 5°C): ± 0.5% or ± 0.5°C
• Temperature resolution (display): 0.1 K
• NETD *2) *3):
  0.05 K (LT22/LT15)
  0.1 K (LT02)
  
  
• Response time (95%): 150 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 software): 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 … 180°C (130°C at LT02)
  electronics: -20°C … 85°C  *4)
  
  
• Storage temperature:
  sensing head: -40°C … 180°C (130°C at LT02)
  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 40g, 
  electronics 420 g

Electrical Specifications

• Output / analog:
  channel 1: 0/4 – 20 mA, 0-5/10 V, thermocouple J, K
  channel 2: sensind head temperature (-20°C – 180°C 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 ACeff; 0.4 A; optically isolated
• Output / digital (optional): USB, RS232, RS485 (optional), 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

OPTCTLT02: -50-600 °C / 8-14 μm / 2:1 / 130°C / 1 m cable

OPTCTLT15: -50-600 °C / 8-14 μm / 15:1 / 180°C / 1 m cable

OPTCTLT15CF: -50-600 °C / 8-14 μm / 15:1 / 180°C / 1 m cable; with CF optics: 3 mm @ 50 mm (head length: 32 mm)

OPTCTLT20: -50-975 °C / 8-14 μm / 22:1 / 180°C / 1 m cable

OPTCTLT20CF: -50-975 °C / 8-14 μm / 22:1 / 180°C / 1 m cable; with CF optics: 2.5 mm @ 50 mm (head length: 32 mm)

Notes:

• *1) Whichever is greater
• *2) At object temperatures > 0°C, Ɛ = 1
• *3) At time constant 200 ms and TObj 25°C
• *4) The LCD displays capacity may be limited at ambient temperatures below 0 °C.
  
  

Suggested Applications

 
Optris Calculator App

One tool, all devices

The Optris Calculator App combines the spot size calculator for IR pyrometers and the optics calculator for Optris IR cameras. It calculates the spot size for each device at any given distance.