
J-115
Fiber Optic Sensors
For Use with DP1511, DP1521 
and DP1531 Monitors 
⻬ ±1.0%Accuracy  
⻬ Emissivity Adjustment 
⻬ Unaffected by 
Electrical Noise
⻬ Usable in Vacuum
Chambers at up to 
10-7Torr
OS1513 General 
Purpose Sensor
⻬ 10 msec Time Constant 
⻬ 160 to 1535°C 
(320 to 2800°F) 
Temperature Range
⻬ 0.020" at 6" Minimum 
Spot Size Available
OS1533 High 
Speed Sensor
⻬ 0.3 msec Time Constant 
⻬ 425 to 1370°C 
(800 to 2500°F) 
Temperature Range in 
Subranges of No More 
than 2:1 (exam) 400-800°
⻬ 0.010" at 3" Minimum
Spot Size Available
OS1513/OS1533 Series
Starts at
$
1715
The OS1513 and OS1533 fiber 
optic detectors are designed to be 
used specifically with the DP1511, 
DP1521 and DP1531 monitors and 
are appropriate for a variety of 
applications. 
These fiber optic detectors are 
capable of temperatures 
measurements from 160 to 1535°C 
(320 to 2800°F).
These detectors are designed to be 
used with the appropriate monitor 
when conventional line of sight 
infrared measurements are not 
possible. The advantages of these 
fiber optic sensors include the ability 
to bypass opaque obstacles and to
DP1531 19" single channel 
high speed monitor, $4995, 
sold separately.
Custom Assemblies Available
⻬ Small Spot Sizes Down to 0.004"
⻬ Temperatures to 427°C (800°F) at Pressures 
to 30,000 PSI
⻬ Ceramic/Metal Tip Probe for Induction Heating 
Where Probe is Close to Surface
⻬ Polymer Bolt Probe for Extrusion Applications
⻬ Ejector Pin Probe for Injection Molding
OS1513-L1-R1-4, 
$1775, shown smaller 
than actual size.
Mounting bracket 
included.
DP1511 general purpose 
single channel monitor, $3040, 
sold separately, see page J-121.
OMEGACARESMextended warranty program is available for models 
shown on this page. Ask your sales representative for full details 
when placing an order. OMEGACARE
SM 
covers parts, labor and
equivalent loaners.

J-116
J
Specifications
Ambient Temperature:
10 to 50°C (50 to 122°F)
Accuracy: ±1.0% rdg 
Repeatability: ±0.5% rdg 
Spectral Response:
0.91 to 2.3 microns
Time Constant: 10 msec, 
OS1513; 0.3 msec, OS1533
Dimensions: 6.4 H x 10 W x 13 cm L 
(2.5 x 4 x 5")
Weight: 1.8 kg (4 lb) 
Fiber Optic Cable: Glass or quartz fiber
with heavy duty stainless steel jacket 
standard, 0.020"/0.070 cable Dia., 
149°C (300°F) ambient max
To Order 
(Specify Model Number)
Base Temperature Spot Size @ Cable
Model No. Price Range Target Dist Length
OS1513-L1-R1-4 $1775 540 to 1090°C 0.020" @ 6" 1.2 m 
General Purpose 1000 to 2000°F (4')
OS1513-L1-R2-1 1715 160 to 340°C 0.075" @ 6" 0.3 m 
General Purpose 320 to 650°F (1')
OS1513-L1-R3-4 1775 260 to 540°C 0.22" @ 8" 1.2 m 
General Purpose 500 to 1000°F (4')
OS1513-L1-R4-4 1775 760 to 1535°C 1.0" @ 26" 1.2 m 
General Purpose 1400 to 2800°F (4')
OS1533-L1-R5-4 2400 675 to 1370°C 0.10" @ 12" 1.2 m 
High Speed 1250 to 2500°F (4')
OS1533-L1-R6-5 2420 815 to 1370°C 0.040" @ 6" 1.5 m 
High Speed 1500 to 2500°F (5')
OS1533-L1-R7-4 2700 425 to 870°C 0.010" @ 3" 1.2 m 
High Speed 800 to 1600°F (4')
Comes with connection cable to a monitor, mounting bracket, and operator’s manual. 
Consult OMEGA for ordering and pricing on custom OS1513 or OS1533 fiber optic systems. 
Notes: Other temperature ranges and spot size @ target distance and vacuum 
bushing available; consult factory. 
The OS1513/OS1533 fiber optic sensor do not operate
stand-alone. Must be used in conjunction with DP1511, 
DP1512 or DP 1531 monitors.
Ordering Example: OS1533-L1-R7-4, high speed 
sensor with temperature range of 425 to 870°C, spot 
size of 0.010" @ 3", and 1.2 m (4') cable, $2700.  
OCW-3, OMEGACARESMextends standard  
2-year warranty to a total of 5 years ($350), 
$2700 + 350 = $3050.
reach into closed areas for viewing. 
They can take measurements 
unattainable by conventional infrared 
pyrometers, as they are unaffected 
by media in the environment, such 
as smoke, water vapor, etc. 
The OS1513 and OS1533 are 
recommended for measurements in 
high energy fields or of small objects, 
down to 0.004" in diameter. For 
remote mounting of the electronics 
out of hazardous environments, the 
fiber optic lens and cable may be 
remotely mounted up to 9 m (30') 
from the infrared detector head. They 
can also be used in vacuum chamber 
applications, where the fiber optic 
assembly can be placed in vacuums 
to 10-7Torr. Also available is a 
backlighting capability, where a 
beam of light illuminates the target, 
providing accurate indication of 
the target area.
Important factors which determine 
the fiber optic assembly best suited 
for your application are: the distance 
from the fiber optic lens to the 
surface being measured, the size 
of the object being measured; the 
temperature range being measured; 
the ambient temperature around the 
fiber optic cable; the length of the 
fiber optic cable; how the surface is 
being heated; and the atmospheric 
conditions between the sensor and 
the product. 
Typical Fiber Optic Probes shown. 
L2, L3 and L4 are custom assemblies, 
Consult OMEGA for details.  
L1 shown with optional bifurcated 
cable for backlighting.
L1
L4
L2
L3
Available Probe Types 
L1 Lens Probe (Standard) 
L2 Ceramic/Metal Tip 
L3 Polymer Bolt 
L4 Ejector Pin Probe
Backlight source,
see OS1500-BLS for specifications.
OS1512 infrared detector shown 
with the DP1500 monitor.
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