Optris CTfast LT

Optris CTfast LT

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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.

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

General Specifications
Environmental rating	IP 65 (NEMA-4)
Ambient temperature1)	–20 °C ... 120 °C (130°C to LT02) (sensing head) 0 °C ... 85 °C (electronics)
Storage temperature	–40 °C ... 120 °C (sensing head) –40 °C ... 85 °C (electronics)
Relative humidity	10 – 95 %, non condensing
Vibration (sensor)	IEC 68-2-6: 3 G, 11 – 200 Hz, any axis
Shock (sensor)	IEC 68-2-27: 50 G, 11 ms, any axis
Weight	40 g (sensing head) / 420 g (electronics)

Electrical Specifications
Outputs / analog	0/4–20 mA, 0–5/ 10 V or thermocouple J, K
Output / alarm	24 V / 50 mA (open collector)
Optional	Relay: 2 x 60 V DC/ 42 V AC_eff; 0.4 A; optically isolated
Outputs / digital	USB, RS232, RS485, CAN, Profibus DP, Ethernet (optional)
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	1 m (standard), 3 m, 8 m, 15 m
Power Supply	8 – 36 V DC
Current draw	Max. 100 mA

Measurement specifications
Temperature range (scalable via programming keys or software)	–50 °C ... 975 °C
Spectral range	8 – 14 μm
Optical resolution (90 % energy)	LT15F 15:1 LT25F 25:1
System accuracy ^2),3) (at ambient temp. 23 ±5 °C)	±1 % or ±2 °C
Repeatability^2),3) (at ambient temp. 23 ±5 °C)	±0.5 % or ±0.5 °C
Temperature resolution (NETD)	LT15F 0.2 K^{2), 3)} LT25F 0.4 K^{2), 3)}
Response time	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/ Gain (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
Software	optris® Compact Connect
¹⁾ Whichever is greater ²⁾At object temperatures ≥20 °C ³⁾At time constant 100 ms and T_Obj 25 °C

Documents:

Filename Upload date Size

Optris CT LT Fast Datasheet 2019.3.25 5.3 MB

Optris CT LT Manual 2019.3.11 4.4 MB

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