optris
®
CT LT
TECHNICAL DATA
Precise non-contact
temperature measurement
from –50 °C to 975 °C
(–58 to 1787 °F)
Features:
• One of the smallest infrared sensors worldwide with 22:1 optical resolution
• Rugged and usable up to 180 °C (356 °F) 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, Probus DP, Ethernet
• Installation of up to 32 sensing heads
• CTex: Explosion proof version (ATEX)
General specications
Environmental rating IP 65 (NEMA-4)
Ambient temperature –20 °C to 180 °C (–4 °F to 356 °F)
Storage temperature – 40 °C to 130 °C (–40 °F to 266 °F) (sensing head)
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 (1.4 oz) (sensing head) /
(130 °C (266 °F) to LT02) (sensing head)
0 °C to 85 °C (32 °F to 185 °F) (electronics)
– 40 °C to 85 °C (–40 °F to 185 °F) (electronics)
420 g (14.8 oz) (electronics)
Electrical Specications
Outputs / analog Channel 1: 0 / 4 – 20 mA, 0 – 5 / 10 V, thermocouple J, K
Output / alarm 24 V / 50 mA (open collector)
Optional Relay: 2 x 60 V DC/ 42 V AC
Outputs / digital USB, RS232, RS485, CAN, Profibus DP, Ethernet
Output impedances mA max. 500 Ω (with 8 – 36 V DC)
Inputs Programmable functional inputs for external
Cable length 1 m (standard), 3 m, 8 m, 15 m
Channel
2: sensind head temperature (–20 °C to
180 °C (–4 °F to 356 °F) as 0 – 5 V or 0 – 10 V),
alarm output
; 0.4 A;
optically isolated
(optional)
mV min. 100 kΩ load impedance thermocouple 20 Ω
emissivity adjustment, ambient temperature
compensation, trigger (reset of hold functions)
(3.3 ft (standard), 9.8 ft, 26.2 ft, 49.2 ft)
eff
Measurement specications
Temperature range
(scalable via programming
keys or software)
Spectral range 8 – 14 μm
Optical resolution
(90 % energy)
CF-lens (optional) 0.6 mm @ 10 mm (with LT22) (0.02 in @ 0.4 in)
System accuracy
ent temp. 23 ±5 °C) (73 ±9 °F)
Repeatability
temp. 23 ±5 °C) (73 ±9 °F)
Temperature resolution (display) 0.1 K
2), 3)
NETD
Response time 150 ms (95 %)
Emissivity/ Gain
(adjustable via programming
keys or software)
Transmissivity/ Gain
(adjustable via programming
keys or software)
Signal processing (parameter
adjustable via programming
keys or software, respectively)
Software optris
1)
Whichever is greater
2)
At object temperatures >0 °C (> 32 °F), ε = 1
3)
At time constant 200 ms and T
1), 2)
1), 2)
(at ambient
(at ambi-
–50 °C to 975 °C (LT22) (–58 °F to 1787 °F)
–50 °C to 600 °C (LT15) (–58 °F to 1112 °F)
–50 °C to 600 °C (LT02) (–58°F to 1112 °F)
22:1 (precision glass optics)
15:1 (precision glass optics)
2:1 (with flat front window)
0.8 mm @ 10 mm (with LT15) (0.03 in @ 0.4 in)
2.5 mm @ 23 mm (with LT02) (0.1 in @ 0.9 in)
±1 % or ±1 °C (±1 % or ±1.8 °F)
±0.5 % or ±0.5 °C (±0.5 % or ±0.9 °F)
0.05 K (LT22 / LT15)
0.1 K (LT02)
0.100 – 1.100
0.100 – 1.100
Peak hold, valley hold, average; extended hold
function with threshold and hysteresis
®
Compact Connect
25 °C (77 °F)
Obj
Power Supply 8 – 36 V DC
Current draw Max. 100 mA
Optris GmbH · Ferdinand-Buisson-Str. 14 · 13127 Berlin · Germany
Tel.: +49 (0)30 500 197-0 · Fax: +49 (0)30 500 197-10 · E-mail: info@optris.com · www.optris.com
optris
Optical specications
53.8
(2.12)
(3.94)
11.6
(0,46)
100
(3.94)
100
16.6
(0.65)
200
(7.87)
102.5
(4.04)
200
(7.87)
S5 (0.20)
D 0
(0)
Optics CT LT SF, D:S = 15:1
6.5
S
(0.26)
D 0
(0)
Optics CT LT SF, D:S = 22:1
®
CT LT
151.3
(5.96)
300
(11.8)
21.7
26.7
(0.85)
(1.05)
300
400
(11.8)
(15.7)
200
(7.87)
400
(15.6)
35
(1.38)
500
(19.7)
251.3
(9.89)
500
(19.7)
43.3
(1.70)
600
(23.6)
302.5
(11.9)
600
(23.6)
51.6
(2.04)
700
(27.6)
353.8
(13.9)
700
(27.6)
59.9
(2.36)
800
(31.5)
405
(15.9)
800
(31.5)
(2.69)
(35.4)
68.2
900
mm
(in)
mm
(in)
Optics CT LT CF, D:S = 2:1 (far eld = 2.5:1)Optics CT LT SF, D:S = 2:1
S7 (0.28)5 (0.20)
D 0
(0)
Optics CT LT CF, D:S = 15:1 (far eld = 1.5:1)
76.5
(3.01)
1000
(39.4)
(mm)
(mm)
S7 (0.28)4 (0.16)
D 0
(0.0)5 (0.20)
Optics CT LT CF, D:S = 22:1 (far eld = 1.5:1)
10
(0.39)
0.8
(0.03)
10
(0.39)
3.1
(0.12)
20
(0.79)
(0.10)
(0.91)
4.7
(0.19)
15
(0.59)
2.5
5.4
9.5
13.7
17.8
20.3
(0.80)
35
(1.38)
(0.70)
60
(2.36)
24.2
(0.95)
40
(1.57)
mm
(in)
mm
(in)
mm
(in)
mm
(in)
(0.21)
(0.37)
(0.54)
23
30
40
(1.18)
(0.34)
(0.79)
(1.57)
8.6
12.5
(0.49)
20
(0.98)
50
(1.97)
16.4
(0.65)
25
30
(1.18)
6.5
10.9
15.2
19.6
S
D 0
(0.26)
(0)
(0.43)
110
(4.33)
(15.2)
220
(8.66)
(0.77)
330
(13.0)
23.9
(0.94)
440
(17.3)
Versions with built-in CF lenses
6.5
S
(0.26)5 (0.20)4 (0.16)
D 0
(0)
25
(0.98)
40
(1.57)
3.4
(0.13)
50
(1.97)
5.4
(0.21)
60
(2.36)
8.4
(0.33)
75
(2.95)
13.3
(0.52)
100
(3.94)
Dimensions
Sensing head
(standard)
Sensing head
(built-in CF
lenses)
28.3
(1.11)
550
(21.7)
18.3
(0.72)
125
(4.92)
32.6
(1.28)
660
(26.0)
23.2
(0.92)
150
(5.91)
37
(1.46)
770
(30.3)
28.2
(1.11)
175
(6.89)
41.3
(1.63)
880
(34.6)
33.1
(1.30)
200
(7.87)
45.7
(1.80)
990
(39.0)
mm
(in)
mm
(in)
50
(1.97)
1100
(43.3)
mm
(in)
mm
(in)
Optics CT LT CF, D:S = 22:1 (far eld = 1.5:1)Optics CT LT CF, D:S = 22:1
Electronics
S
(0.26)
D 0
S7 (0.28)
D 0
(0)5 (0.20)
6.5
(0)
4.4
(0.17)
25
(0.98)
3.8
(0.15)
3.2
(0.13)
40
(1.57)
0.6
(0.02)
(0.39)
2.3
(0.09)
50
(1.97)
4.4
8.2
12
15.8
19.6
23.4
(0.17)
(0.32)
(0.47)
(0.62)
(0.77)
10
15
20
25
(0.98)
15.5
(0.61)
125
(4.92)
30
(1.18)
19.9
(0.78)
150
(5.91)
(1.38)
4.1
(0.16)
60
(2.36)
(0.59)
(0.26)
(2.95)
(0.79)
6.7
11.1
(0.44)
75
100
(3.94)
mm
(0.92)
(in)
mm
35
40
(in)
(1.57)
24.3
28.7
(1.13)
200
(7.87)
mm
(in)
mm
(in)
(0.96)
175
(6.89)
Specications are subject to change without notice · CT LT-E2018-08-A
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