Related Manuals for Omega OS301A-USB Series
Summary of Contents for Omega OS301A-USB Series
- Page 1 User’ s Guide Shop online at omega.com e-mail: info@omega.com For latest product manuals: www.omegamanual.info OS301A-USB Series OS150A-2USB Series Infrared Temperature Sensors...
- Page 2 Fax: (203) 359-7700 e-mail: info@omega.com For Other Locations Visit omega.com/worldwide The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves the right to alter specifications without notice.
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Page 3: General Specifications
OS301A-USB Series infrared sensors measure the temperature of surfaces without contact. They provide this measurement as a linear 2-wire 4 to 20 mA output, which is compatible with almost any indicator, controller, recorder or data logger without the need for special interfacing or signal conditioning. - Page 4 MECHANICAL SPECIFICATIONS Construction Stainless Steel Dimensions Ø 27.6 x length 61 mm including cable glands Thread mounting M20 x 1 mm pitch, length 15 mm 4-20 mA Output Cable Length 1 m (standard), up to 30 m (optional) Weight with 1 m Output Cable 155 g USB Cable Length 1.8 m...
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Page 5: Model Numbers
MODEL NUMBERS... -
Page 6: Optical Chart
There is no maximum measurement distance in clear air. Distance: Sensor to object (inches) Distance: Sensor to object (inches) Optics (OS301A-USB Series) 19.7 39.4 Distance: Sensor to object (inches) Distance: Sensor to object (inches) 19.7... -
Page 7: Installation
The sensor must be installed in a location where energy from lamps, heaters and sunlight cannot be reflected from the target into the lens. The use of shields may help in this respect. For further information and assistance contact Omega. AMBIENT TEMPERATURE The sensor is designed to operate in ambient temperatures from 0°C to 70°C. -
Page 8: Power Supply
WIRING Check the distance between the sensor and the indicating/controlling device. If necessary, the sensor can be ordered with a longer cable attached. POWER SUPPLY Be sure to use a 24 V DC (22 mA) power supply. MECHANICAL INSTALLATION All sensors come with a 1m cable and a mounting nut. The sensor can be mounted on brackets or cut outs of your own design, or you can use the fixed and adjustable mounting bracket accessories which are shown below. -
Page 9: Air Purge Collar
AIR PURGE COLLAR The air purge collar below is used to keep dust, fumes, moisture, and other contaminants away from the lens. It must be screwed in fully. Air flows into the 1/8” BSP fitting and out of the front aperture. Air flow should be 5 to 15 litres/min. Clean or ‘instrument’... - Page 10 Windows Vista or newer • USB 2.0 port, Internet access (for software download) Installation Download the software from the Omega website Unzip and run setup.exe Follow the on-screen instructions NOTE: Do not connect the sensor to the PC before the software is installed.
- Page 11 From the Settings menu, go to Emissivity and Compensation. Emissivity Setting Enter the emissivity of the target. Target emissivity can be determined experimentally, or estimated using an emissivity table. For more information, contact Omega. Default setting: 0.95 Window Transmissivity When aiming the sensor through an IR-transmissive window, this setting should be adjusted to compensate for the presence of the window.
- Page 12 MODBUS OVER SERIAL LINE Interface Baud rate 9600 Format (bits) 8 data, No parity, 1 stop Reply delay 20 ms Supported Functions Read register 0x03, 0x04 Write single register 0x06 Write multiple register 0x10 List of Modbus Addresses The list below includes all available addresses: R = Read, W = Write Address Length (words)
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Page 13: Default Settings
Address Length (words) Description 0x11 Maximum Temperature 0x12 Filtered Temperature 0x13 Unfiltered Temperature 0x14 Sensor Temperature 0x15 Status (bits active high): Bit 0: Measurement error Bit 1: Sensor temperature low Bit 2: Sensor temperature high Bit 3: Object temperature low Bit 4: Object temperature high 0x17 Reflected Temperature... -
Page 14: Maintenance
In many cases, problems can be solved over the telephone. If the sensor is not performing as it should, try to match the symptom below to the problem. If the table does not help, call Omega for further advice. LENS CLEANING Keep the lens clean at all times. - Page 15 CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity;...
- Page 16 Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course! Shop online at omega.com TEMPERATURE M U Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies M U Wire: Thermocouple, RTD & Thermistor M U Calibrators & Ice Point References M U Recorders, Controllers &...