CT LT0 pages
optris® CT LT
FEATURES
Precise non-contact temperature measurement
from -50°C to 975°C
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,
Profibus DP, Ethernet
Installation of up to 32 sensing heads
CTex: Explosion proof version (ATEX)
General Specifications
Environmental rating
Ambient temperature
Measurement Specifications
Temperature range
(scalable via programming keys or
software)
IP 65 (NEMA-4)
-20°C to 180°C (130°C at LT02)
(sensing head)
0°C to 85°C (electronics)
-50°C to 975°C (LT22)
-50°C to 600°C (LT15)
-50°C to 600°C (LT02)
Spectral range
8-14 μm
Storage temperature
sensing head: -40 to 180°C (130°C at
LT02)
electronics: -20°C to 85°C
Optical resolution
(90% energy)
22:1 (precision glass optics)
15:1 (precision glass optics)
2:1 (with flat front window)
Relative humidity
10 - 95%, non condensing
CF-lens (optional)
Vibration (sensor)
IEC 68-2-6: 3 G, 11-200 Hz,
any axis
0.6 mm @ 10 mm (LT22)
0.8 mm @ 10 mm (LT15)
2.5 mm @ 23 mm (LT02)
IEC 68-2-27: 50 G, 11 ms,
any axis
System accuracy1),2)
(at ambient temp. 23 ±5°C)
± 1% or ± 1°C
Shock (sensor)
sensing head 40 g
electronics 420 g
Repeatability1),2)
(at ambient temp. 23 ±5°C)
± 0.5% or ± 0.5°C
Weight
Temperature resolution (display)
0.1°C
Electrical Specifications
NETD2),3)
0.05 K(LT22/LT15)
0.1 K (LT02)
Outputs/analog
Response time
150 ms (95 %)
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
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
Outputs/digital (optional)
USB, RS232, RS485 (optional), 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
1 m (standard), 3 m, 8 m, 15 m
Current draw
2)
max. 100 mA
Power Supply
whichever is greater
at object temperatures > 0°C, Ɛ = 1
3)
at time constant 200 ms and TObj 25°C
1)
8-36 V DC
Innovative Infrared Technology
"