optris CTlaser LT0 pages

More Precision.
FEATURES

optris® CT laser LT

- Low and high temperature measurements of smallest
spots up from 0.9 mm

Non-contact temperature measurement with
precise aiming from -50°C to 975°C

- NEW: Double laser aiming marks real spot location
and spot size at any distance
- Optics 75:1 with selectable focus
- CT laser F (fast) for scanning of fast moving low
temperature objects up from 9 ms response time
- Usable up to 85°C ambient temperature without
cooling and automatic laser switch off at 50°C
- Selectable analog outputs 0/4-20mA, 0-5/10V,
thermocouple type K or J
- Optional plug in digital interfaces USB, RS232,
RS485, CAN or Profibus DP
General specifications
Environmental rating

Measurement specifications
IP 65 (NEMA-4)

Storage temperature

Temperature range (scalable via
programming keys or software)

-50 - 975°C

electronics: 0 - 85°C

Ambient temperature

sensing head: -20 - 85°C (50°C with laser ON)

Spectral range

8 - 14 µm

sensing head: -40 - 85°C
electronics: -40 - 85°C

Relative humidity

IEC 68-2-6: 3 G, 11 - 200 Hz, any axis

Shock (sensor)

IEC 68-2-27: 50 G, 11 ms, any axis

Weight

75:1 CT laser
50:1 CT laser F

10 - 95%, non condensing

Vibration (sensor)

Optical resolution (90% energy)

CF1 0.9 mm @ 70 mm
CF2 1.9 mm @ 150 mm
Selectable focus (CT laser)

1)

sensing head 600 g

CF3 2.75 mm @ 200 mm
CF4 5.9 mm @ 450 mm

electronics 420 g

SF 16 mm @ 1260 mm

Electrical specifications

System accuracy
(at ambient temperature 23 ±5°C)

±1% or ±1°C2),3)(CT laser)
±1.5% or ±1.5°C2),3) (CT laser F)

channel 2: sensing head temperature (-40 85°C as 0 - 5 V or 0 - 10 V), alarm output

Repeatability
(at ambient temperature 23 ±5°C)

±0.5 % or ±0.5°C2) (CT laser)
±1 % or ±1°C2) (CT laser F)

Alarm output

Open - collector (24 V / 50 mA)

Temperature resolution (NETD)

0.1°C / 0,5°C (with CT laser F)

Optional

relay: 2 x 60 V DC/42 V ACeff; 0.4 A; optically
isolated

Response time (90% signal) 4)

Outputs/digital (optional)

USB, RS232, RS485, CAN, Profibus DP,
Ethernet

Outputs/analog

channel 1: 0/4 - 20 mA, 0 - 5/10 V,
thermocouple J, K

mA max. 500 W (with 5 - 36 V DC)
Output impedances

mV min. 100 k W load impedance
thermocouple 20 W

Inputs

programmable functional inputs for external
emissivity adjustment, ambient temperature
compensation, trigger (reset of hold
functions)

Cable length

3 m (standard), 8 m, 15 m

Current draw

max. 160 mA

Power supply

8 - 36 V DC

Laser 635 nm

1mW, ON/OFF via electronic box or software

9 ms (CT laser F)
120 ms (CT laser)

Emissivity/Gain (adjustable via
programming keys or software)

0.100 - 1.100

Transmissivity/Gain (adjustable via
programming keys or software)

0.100 - 1.000

Signal processing (parameter adjustable peak hold, valley hold, average;
via programming keys or software,
extended hold function with
respectively)
threshold and hysteresis
1)
different spotsizes for CTlaser F (D:S = 50:1)
2)
whichever is greater
3)
at object temperatures >0°C, Ɛ =1
4)

with dynamic adaption at low signal levels