Compact Non-Contact
Temperature Sensor
With Controllable Emissivity Setting
OS212, OS152, OS302 and
OS802 Series
†
Optional
U Temperature Range -20 to 500°C
(-4 to 932ºF)
U 2-Wire 4 to 20 mA Output Proportional
to Target Temperature
U 4 to 20 mA Input to Control
Emissivity Setting
U Optional Manual Emissivity Adjuster
U Field of View: 2:1, 15:1, 30:1 or
Close Focus
U Fast Response with High Stability
U Stainless Steel Housing, Sealed to IP65
U Quick and Easy Installation
U Optional Air/Water Cooled Housing, Air
Purge Collar, Laser Sighting Tool and
Mounting Brackets
OS212-LT
sensor head
shown with
optional OS210-PT
emissivity adjuster
(actual size).
The OMEGA® Infrared Series is a range of high
quality, low cost, compact sensors which measure the
temperature of inaccessible or moving objects and
materials. They measure temperatures from -20 to
500°C (-4 to 932ºF), accurately and consistently, with
an outstanding response time of 240 mS. OMEGA
sensors transmit the target temperature as a
4 to 20 mA output and offer a simple solution for most
non-contact temperature measurement applications.
The sensor’s emissivity setting can be adjusted
from 0.2 to 1.0 to cope with different target materials
and is controlled by a 4 to 20 mA input. This gives
the opportunity to adjust the emissivity setting
automatically from a programmable logic controller
(PLC). Alternatively the emissivity setting can be
adjusted manually using the OS210-PT. If the
4 to 20 mA input is left open or short-circuit the
emissivity setting defaults to 0.95.
†
Refer to accessory chart on J-3 for NIST calibration
ordering information.
J
J-1
Specifications
Distance: Sensor to object (inches)
Distance: Sensor to object (mm)
11.9
45.2
78.6
0.5
1.8
3.1
0 19.7 39.4
0
500 1000
Distance: Sensor to object (inches)
Distance: Sensor to object (mm)
11.9
0.5
0
0
5.0
0.20
100
3.9
D:S 15:1
OS152
Distance: Sensor to object (inches)
Distance: Sensor to object (mm)
11.9
28.6
45.2
0.5
1.1
1.8
0 19.7 39.4
0 500 1000
D:S 30:1
OS302
OS802
Spot
Dia
(in)
Spot
Dia
(mm)
Spot
Dia
(in)
Spot
Dia
(mm)
Spot
Dia
(in)
Spot
Dia
(mm)
Distance: Sensor to object (inches)
Distance: Sensor to object (mm)
11.9
0.5
0
0
5.0
0.20
100
3.9
12.5
0.49
200
7.9
OS802
Spot
Dia
(in)
Spot
Dia
(mm)
Distance: Sensor to object (inches)
Distance: Sensor to object (mm)
11.9
0.5
0
0
5.0
0.20
100
3.9
12.5
0.49
200
7.9
Distance: Sensor to object (inches)
Distance: Sensor to object (mm)
11.9
28.6
45.2
0.5
1.1
1.8
0 19.7 39.4
0 500 1000
D:S 30:1
OS302
OS802
Spot
Dia
(in)
Spot
Dia
(mm)
Spot
Dia
(in)
Spot
Dia
(mm)
Infrared Sensor Output: 4 to 20 mA
Accuracy: ±1% of reading or ±1ºC whichever is greater
Repeatability: ±0.5% of reading or ±0.5ºC whichever is greater
Emissivity: 0.2 to 1.0 via 4 to 20 mA input
Response Time t90: 240 mS (90% response)
Spectral Range: 8 to 14 μm
Supply Voltage: 24 Vdc (28 Vdc max)
Min Sensor Voltage: 6 Vdc
Max Loop Impedance: 900 Ω (4 to 20 mA output)
Input Impedance: 50 Ω
Mechanical
Construction: Stainless Steel
Dimensions: 103 L x 18 mm D (4.05 x 0.71")
Thread Mounting: M16 x 1 mm pitch
Cable Length: 1 m (3.3') longer lengths available to order
Weight: 95 g (3.4 oz) with cable
Environmental Rating: IP65
Ambient Temperature Range: 0 to 70ºC (32 to 158ºF)
Relative Humidity: 95% max non-condensing
Wiring Diagram and Distance: Spot Ratios
Tune Emissivity Adjuster Specifications
(OS210-PT)
Output: 4 to 20 mA
Supply Voltage: 24 Vdc (13V to 28 Vdc)
Display Format: 3.5 digit LCD
Display Units:
Emissivity: 0.2 to 1.0
Current: 4 to 20 mA
Adjustment: Pushbuttons (raise/lower/set)
Mechanical
Construction: Polycarbonate with gasket, transparent lid
(PC) and quick release screws
Mounting: Surface
Dimensions: 65 H x 50 W x 35 mm D (2.56 x 1.97 x 1.38")
Weight: 72 g (2.5 oz)
Environmental
Rating: IP65
Ambient Temperature Range: 0 to 70ºC (312 to 158ºF)
Relative Humidity: 95% max non-condensing
Distance: Sensor to object (inches)
048
Spot
Dia
(in)
0.5
11.9
Spot
Dia
(mm)
0
Distance: Sensor to object (mm)
Distance: Sensor to object (inches)
0 19.7 39.4
Spot
Dia
(in)
0.5
11.9
Spot
Dia
(mm)
0
Distance: Sensor to object (mm)
2.4
61.9
100 200
OS212
1.8
45.2
500 1000
OS152
4.4
D:S 2:1
111.9
Distance: Sensor to object (inches)
0 19.7 39.4
3.1
D:S 15:1
78.6
Spot
Dia
(in)
0.5
11.9
Spot
Dia
(mm)
0 500 1000
Distance: Sensor to object (mm)
Power Supply
PWR+
PWR-
IP-
IP+
1.1
28.6
OS302
J-2
Display/Controller
+-
-
+
4 to 20 mA
4 to 20 mA = Target
Temperature
PLC
4 to 20 mA
-
+
SC 0 to 24V
4 to 20 mA =
Emissivity Setting
Distance: Sensor to object (inches)
0
Spot
1.8
D:S 30:1
45.2
Dia
(in)
0.5
11.9
Spot
Dia
(mm)
0
Distance: Sensor to object (mm)
OS802
Power Supply
3.9
0.20
5.0
100
+
-
7.9
0.49
12.5
200
To Order Visit omega.com/os212 for Pricing and Details
Model No. Optics Temperature Range Output with Adjustable Emissivity
OS212-LT 2:1 -20 to 100ºC (-4 to 212ºF) 4 to 20 mA
OS212-MT 2:1 0 to 250ºC (32 to 482ºF) 4 to 20 mA
OS152-LT 15:1 -20 to 100ºC (-4 to 212ºF) 4 to 20 mA
OS152-MT 15:1 0 to 250ºC (32 to 482ºF) 4 to 20 mA
OS152-HT 15:1 0 to 500ºC (32 to 932ºF) 4 to 20 mA
OS302-LT 30:1 -20 to 100ºC (-4 to 212ºF) 4 to 20 mA
OS302-MT 30:1 0 to 250ºC (32 to 482ºF) 4 to 20 mA
OS302-HT 30:1 0 to 500ºC (32 to 932ºF) 4 to 20 mA
OS802-LT Close-focus -20 to 100ºC (-4 to 212ºF) 4 to 20 mA
OS802-MT Close-focus 0 to 250ºC (32 to 482ºF) 4 to 20 mA
OS802-HT Close-focus 0 to 500ºC (32 to 932ºF) 4 to 20 mA
Comes complete with sensor head, 1 m (3.3') cable and operator’s manual.
Ordering Examples: OS212-MT, 2:1 optics, 0 to 250ºC (32 to 482ºF) temperature range, 4 to 20 mA output, adjustable emissivity.
OS302-HT, 30:1 optics, 0 to 500ºC (32 to 932ºF) temperature range, 4 to 20 mA output, adjustable emissivity. OCW-3, OMEGACARE
standard 2-year warranty to a total of 5 years.
Options (Not Field Installable)
Suffix Description
-WC For air/water cooled jacket (includes air purge collar) must be ordered with sensor; cannot be
retrofitted
-CE(*) Cable extended, for uncooled PE sensor, 30 m (98') max total cable length
-CEHT(*) Cable extended, high temperature, for cooled PE sensor, 30 m (98') max total cable length
1 m (3.3') cable is included as standard on every sensor. Extended cable is added to that length, add suffix to model number. Insert cable length
*
in meters.
SM
extends
J
Accessories
Model No. Description
OS210-PT Tune emissivity adjuster, 24 Vdc input, 4 to 20 mA output
OS210-FBS Fixed bracket for compact sensors
OS210-ABS Adjustable bracket for compact sensors
OS210-APSW Air purge collar for compact 2:1 sensors
OS210-APSN Air purge collar for compact 15:1, 30:1 and close-focus sensors
OS210-LSTS Laser sighting tool for compact sensors
CAL-3-IR† NIST-traceable calibration
Power Supplies
Model No. Description
PSR-24S Regulated power supply, US plug, 90 to 264 Vac input, 24 Vdc output, 400 mA,
screw terminals, UL
PSR-24L Regulated power supply, US plug, 90 to 264 Vac input, 24 Vdc output, 400 mA,
stripped leads, UL
PSR-24L-230 Regulated power supply, european plug, 230 Vac input, 24 Vdc output, 400 mA,
stripped leads, CE
TX8-100 Power/output cable, 30 m (100')
J-3
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