First of all, it is important to dene the measurement task and
to decide on one of these two measures:
A point measuring infrared ther-
mometer should be used if you know
where the critical point or the area to
be measured is positioned within your
application. The size of the measuring
object is important to dene which
lens is necessary.
It is therefore possible to monitor the
accurate temperature and optimize
processes – if necessary – before
quality problems arise.
Pyrometer congurator:
www.optris.com/pyrometer-selector
Which object surface?
The condition of the object surface
denes the measurement device
and wavelength to be used for
the application. The emissivity Ɛ
occupies a central position. The
choice of the right device is of great
importance especially for metals,
where the emissivity depends on
the temperature and wave length.
We are able to oer appropriate meas-
urement devices for most applications
throughout a wide product range.
The following explanation helps to
nd the right wavelength for your
application:
[°C]
■ 8 – 14 μm for non-metal surfaces
(Type of device: LT)
■ 0.5; 1.0; 1.6; 2.3 μm mainly for
liquid metals and metal surfaces
(Type of device: 05M; 1M; 2M; 3M)
■ 3.43 µm for thin plastic lms
like PE, PP and PS (Type of
device: P3)
■3.9; 4.24; 4.64; 7.9 μm for
special applications (Type of
device: MT; F2; F6)
■5.0 μm for glass surfaces
(Type of device: G5)
■ 7.9 μm for plastic foils and glass
surfaces (Type of device: P7/G7)
Short wavelengths reduce
measurement errors on
surfaces with low, unknown
or changing emissivity. This
occurs mostly with metals.
The diagram above shows
the measurement errors
across different wavelengths
if the emissivity is wrongly
adjusted by only 10 percent.
Infrared cameras should be used in
cases where more than one critical
area exists or the area cannot be
clearly dened. Critical areas can be
localized by the camera through the
demonstration of thermal images.
The areas can then be permanently
monitored by one or multiple xed
infrared thermometers.
2
Which temperature range?
The temperature is another factor to
decide on. The range should cover
all relevant temperatures of the appli-
µm
50 °C t o 400 °C
0 °C t o 710 °C
–50 °C t o 1030 °C
0500100015002000
Display of temperature over wavelength for the devices of the compact and the high performance series
(122 °F to 752 °F)
(32 °F to 1310 °F)
(–58°F t o 1886 °F)
200 °C t o 1500 °C
100 °C t o 1650 °C
200 °C t o 1650 °C
50 °C t o 3000 °C
Temperature in °C (°F)
cation. The measurement range of
the devices is between –50 °C and 3000 °C (–58 °F and 5432 °F).
(392 °F to 2732 °F)
(212°F t o 3002 °F)
(392°F t o 3002 °F)
(122°F t o 5432 °F)
25003000
P3
P7
LT
G7
G5
MT, F2, F6
05M, 1M, 2M, 3M
(5432) (4532) (3632) (2732) (1832) (932) (32)
For further information on non-contact temperature measurement see our brochure on basics
of IR temperature measurement:
www.optris.com/downloads-compact-series
innovative infrared technology
Which process velocity?
To achieve accurate temperature measurement it is
important to know how fast measuring objects are
moving in front of the sensor or how fast they change
temperature.
Our fastest infrared thermometer captures changes
within 1 ms.
Display of fast temperature changes over a period of time.
Integration of sensors?
Our temperature sensors can be installed as part of the
process with mounting brackets or anges.
Object size and measurement distance
IR thermometers use the radiation signal emitted by the
entire measurement spot. The size of the measurement
spot (S) largely depends on the device, the optics
selected and the distance between the sensor and
measurement object plane (D):
Measurement spot diameter (S) depending on the measurement distance
(D) with an IR thermometer
For a precise temperature measurement, the measurement spot needs to be smaller than, or the same size as
the object to be measured.
If the measurement spot is larger than the object, a temperature is calculated from the averaged heat radiation
signal from the object and its environment. In a colder
environment, it means that correspondingly, the temperature measurement value determined is too low.
Depending on the device, we oer dierent analog and
digital interfaces for data evaluation such as triggering,
alerting or saving of data.
Single-piece two-wire
sensor with electronics in
cable; high thermal sensiti
vity; smart LED display
2M3M
Single-piece sensor for
temp. measurements on
-
metal; electronics in cable;
smart LED display
Single-piece sensor for
temp. measurements on
metal; electronics in cable;
smart LED display
ThermopileInGaAsExt. InGaAsThermopileThermopileThermopile1M: Si / 2M: InGaAsExtended InGaAsThermopileThermopile (P7)
■
(behind electronics)
–20 ... 150 °C
(–4 ... 302 °F)
■
(behind electronics)
2ML: 250 ... 800 °C
(2ML: 482 ... 1472 °F)
2MH: 385 ... 1600 °C
(2MH: 725 ... 2912 °F)
■
(behind electronics)
3ML: 50 ... 350 °C
(3ML: 122 ... 662 °F)
3MH: 100 ... 600 °C
(3MH: 212 ... 1112 °F)
Temperature resolution
Optical resolution
Option: CF lens
Smallest spot (CF optics / add. CF lens)
Smallest spot (SF optics)
Sighting
Response time (90 %)
Accuracy
Analog O/P: 0-20 mA/4-20 mA/0-5 V/0-10 V/t/c (K/J)
Second analog output
USB / RS232 / RS485 / Probus / Ethernet
Peak / Valley / AVG / Advanced hold
T
Head min.
Amb
T
Head max.
Amb
T
Electronics max.
Amb
Functional inputs / number
External emissivity adjustment
External background temp. control / Trigger in-
put for reset of hold functions / Digital I/O pins
Simultaneous analog + digital O/P / Alarm O/P
as altern. to analog O/P / Additional alarm O/P
Voltage supply
Standard cable length options
4
0.1 K0.1 K0.025 K [>20 °C (>68 °F)]0.1 K0.1 K0.1 KLT15F: 0.2 K / LT25F: 0.4 K0.25 K0.1 K0.1 KL: 0.1 K / H: 0.2 KP3: 0.1 K / P7: 0.5 K
15:1 LT02: 2:1 / LT15 (H): 15:1 /
LT22 H: 22:1
■
0.8 mm @ 10 mm
(0.03 in @ 0.4 in)
■■■■■■■■■––
LT02: 2.5 mm @ 23 mm
(LT02: 0.1 in @ 0.9 in)
LT15 (H): 0.8 mm @ 10 mm
(LT15 (H): 0.03 in @ 0.4 in)
15:12ML: 40:1
2MH: 75:1
0.8 mm @ 10 mm
(0.03 in @ 0.4 in)
2MH: 1.5 mm@110 mm
(2MH: 0.06 in @ 4.3 in)
2ML: 2.7 mm@110 mm
(2ML: 0.11 in @ 4.3 in)
3ML: 22:1
3MH: 33:1
3ML: 1.5 mm @ 30 mm
(3ML: 0.06 in @ 1.2 in)
3MH: 1 mm @ 30 mm
(3MH: 0.04 in @ 1.2 in)
LT 22 H: 0.6 mm @ 10 mm
(LT 22 H: 0.02 in @ 0.4 in)
7 mm (0.3 in)7 mm (0.3 in)7 mm (0.3 in)7 mm (0.3 in)7 mm (0.3 in)7 mm (0.3 in)7 mm (0.3 in)7 mm (0.3 in)7 mm (0.3 in)7 mm (0.3 in)7 mm (0.3 in)7 mm (0.3 in)
LED aimingLED aimingLED aimingLED aimingLED aiming
25 ms14 ms150 ms150 ms10 ms150 msLT15F: 9 ms / LT25F: 6 ms100 ms1 ms1 msL: 120 ms / H: 80 msP3: 100 ms / P7: 150 ms
–20 °C (–68 °F)–20 °C (–68 °F)–20 °C (–68 °F)–20 °C (–68 °F)–20 °C (–68 °F)–20 °C (–68 °F)–20 °C (–68 °F)–20 °C (–68 °F)–20 °C (–68 °F)–20 °C (–68 °F)–20 °C (–68 °F)
ACCTFB / ACCTFBMH / ACCTFB2
Mounting bracket, adjustable in one axis
(M12x1 sensing head, massive housing,
mounting of CT sensing head + LaserSightingtool)
ACCTTAS
Tilt assembly for heads with optical
resolution ≥10:1
Optical accessories
ACCTMB
Mounting bolt with thread M12x1
ACCTRAIL
Rail mount adapter for CT electronics
ACCTMG
Mounting fork, adjustable in 2 axes, with
thread M12x1
ACCTCOV
Closed cover for CT electronic box
ACCTKF40B270 / ACCTKF40GE
KF40 flange for CT1M, 2M, 3M with B270
window (up to 10-7 mbar) /
KF40 flange for CTLT with Ge window (up
to 10-7 mbar)
ACCTTAM25
Thread adapter M12x1 to M25x1.5 incl.
2 mounting nuts
ACCTCF / ACCTPW
CF-lens or protective window (for LT) for
M12x1 sensing head
ACCTCFHT / ACCTPWHT for 1M, 2M, 3M
ACCTRAM
Right angle mirror for measurements 90° to the sensor
axis for sensing heads with optical resolution ≥10:1
6
ACCTCFE / ACCTPWE
CF-lens or protective window (for LT) with external thread
for air purge or massive housing
ACCTCFHTE / ACCTPWHTE for 1M, 2M, 3M
D08ACCTLST / ACCTOEMLST
Laser-Sightingtool (for CT )/ OEM Laser-Sightingtool,
635 nm, rotation symmetrical, for connection to CT electronics, power supply via CT electronic box or battery
+
ACCTPA + ACCTST20 20 (20 mm length) / ACCTST40 (40 mm length) / ACCTST88 (88 mm length)
Pipe adapter with M12x1 internal thread + Sighting tube with M12x1 external thread
Air purges and protective housings
innovative infrared technology
ACCSAP
Air purge collar (for heads with optical
resolution ≥10:1)
ACCTAPLCF
Air purge collar, laminar, with integrated
CF-lens (for LT)
Combinations
ACCTAPMH
Air purge collar for Massive housing (D06)/
CSmicro HS/ CThot/ CT P3/ CT P7
ACCTAPLCFHT
Air purge collar, laminar, with integrated
CF-lens (for 1M/ 2M/ 3M)
Massive housing of:
• compact, brass (D06ACCTMHB)
• anodized aluminium (D06ACCTMHA)
• stainless steel (D06ACCTMHS)
ACCTAPL
Air purge collar, laminar
• stainless steel version with CF optics
(D06ACCTMHSCF)
• stainless steel version for HT CF optics
(D06ACCTMHSCFHT)
ACCTAP / ACCTAP2
Air purge for CT heads (not for heads with
32 mm length)
ACCTAPL
Air purge collar, laminar
ACCTFB
Mounting bracket for
M12x1 sensing head
++
ACCTMG
Mounting fork
+
ACCTMB
Mounting bolt
==
Device adjustable in two
axes
==
ACCTAB
Device adjustable in two
axes
ACCTFB2
Mounting bracket for sensing head + Sighting tool
+
D06ACCTAPMH
Massive housing, stainless
steel
D08ACCTLST /
ACCTOEMST
OEM Laser-Sightingtool
ACCTAPMH
Airpurge, stainless steel
Sensing head with LaserSighting tool
Massive housing with air
purge
7
High performance series
Infrared thermometers with
highest optical resolution and
double laser
Base ModelCSlaserCSlaserCSlaserCTlaserCTlaserCTlaserCTlaserCT XLCTlaserCTlaserCTlaserCTratio