Optris CT G5 infrared non-contact temperature sensor

Optris CT miniature sensing head

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Optris CT G5 Miniature Infrared Pyrometer

The Optris CT G5 is a miniaturised pyrometer with programmable electronic box for applications which is specifically designed to measure the temperature of glass in a wide variety of applications in the range 100 to 1650°C, including flat glass and glass containers.

The sensor has the smallest sensing head available in the world at just 14mm diameter x 28mm long and allows the sensor to be installed in the applications where space is at a premium. The separate electronics enclosure provides a full range of outputs and inputs as standard including Voltage, mA and Thermocouple. It is also possible to incorporate an interface card which provides simple integration into your existing process control equipment. Options include Ethernet, Profibus, RS485 and USB interface and Compact Connect software.
Calibration as well as a full range of accessories are available for the Optris Compact infrared pyrometers.


Accurate temperature measurement of flat glass, glass containers (bottles and jars), light bulb manufacturing, car glass production and manufacturing of photovoltaic cells from 100°C to 1650°C
Very small sensing head of 14 mm diameter and 28 mm long fits anywhere and is usable up to 85°C ambient temperature without cooling
Response times up from 80ms
High flexibility through selectable analogue outputs or various digital interfaces at the electronic box

General Specifications

Environmental rating: IP 65 (NEMA-4)
Ambient temperature: Sensing head:-20°C to 85°C Electronics: 0°C to 85°C
Storage temperature: Sensing head:-40°C to 85°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 42g electronics 420g

Measurement Specifications

Temperature range (1): (scaleable via programming keys or software) 100°C – 1200°C (G5L) 250°C – 1650°C (G5H)
Spectral range: 5.2μm
Optical resolution CT (90 % energy): 10:1 (G5L) 20:1 (G5H)
System accuracy: ±1% or ±2°C at ambient temperature (1)
Repeatability: ±0.5% or ±0.5°C at ambient temperature (1)
Temperature resolution: 0.1°C (G5L) / 0.2°C (G5H)
Response time: 80 ms (G5H) / 120 ms (G5L) (90%) (2)
Emissivity/Gain : 0.100 – 1.100 (adjustable via 0-5 V DC input or software)
Transmissivity : 0.100 – 1.100 (adjustable via software)
Signal processing: peak hold, valley hold, average; extended hold function with threshold and hysteresis
Software: optris Compact Connect

1) Whichever is greater

Electrical Specifications

Output/analogue: Channel 1: 0/4 – 20 mA, 0-5/10V, thermocouple J or K, alarm. Channel 2: sensing head temperature (-20 to 85°C as 0 – 5V or 0 – 10V), alarm output
Output/alarm: 24 V/50 mA (open collector)
Optional Alarm Output: relay: 2 x 60 V DC/42 V AC; 0.4 A; optically isolated
Outputs/digital (optional): USB, RS232, RS485, CAN-Bus, 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 inputs for external emissivity adjustment, ambient temperature compensation, trigger (reset of hold functions)
Cable length: 3m (standard), 8m, 15m
Current draw: max. 100mA
Power Supply: 8-36 V DC

Optical Specifications






CompactConnect Software

Compact Connect Software