Omega Speaker Systems OS550 Series manual Figure C-2. Determining Emissivity with a Drilled Hole

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Appendix: Determining an Unknown Emissivity C

Method 4

1.Paint a sample of the object material with flat black lacquer paint.

2.Set the emissivity to 0.97 and measure and record the temperature of the painted portion of the sample material - Area Ain Figure

C-1. Make sure that the painted area of object material fills the FOV of the thermometer.

3.Aim the thermometer at another spot on the target - Area Bin Figure C-1.

4.Adjust the emissivity of the thermometer until the temperature reading equals the temperature found in Step 2.

Method 5

1.Use this method where practical to measure objects at temperatures above 500°F (260°C).

2.Drill a 1.5" (35 mm) diameter hole in a sample of the object material to a depth of 5" (127 mm). This hole closely resembles a blackbody (refer to Appendix A).

Drilled out

Area “A” Target

Area “B” Target

Figure C-2. Determining Emissivity with a Drilled Hole

3.Set the emissivity to 0.97 and measure and record the temperature of the hole in the sample material - Area Ain Figure C-2. Make

sure that the hole fills the FOV of the thermometer.

4.Aim the thermometer at another spot on the target as close as possible to Area A(Area Bin Figure C-2).

5.Adjust the emissivity of the thermometer until the temperature reading equals the temperature found in Step 3.

C-3

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Contents User’s Guide Servicing Europe Servicing North AmericaFor immediate technical or application assistance Model No Description This page is intentionally blank Unpacking Instructions Chapter General Description Chapter Maintenance General Description Introduction Thermometer Features 750 Parts of the Thermometer/Transmitter Sensor Head Installation Installing the Infrared Thermometer InstallationSensor Head Dimensions Sensor Head DimensionsMain Display Nema Housing with Mounting Brackets Dimensions OS550 Display Electronics DimensionsOEM Style Main Display with Mounting Plate OS550-BB Series Display Mounting DimensionsMounting Nut Dimensions OS550-MN Mounting Bracket Dimensions OS550-MBAir Purge Collar Dimensions OS550-AP Mounting Flange Dimensions OS550-MFUsing the Infrared Thermometer Using the Infrared Thermometer1 OS550 Series Cable Connection How To Power the ThermometerField of View Positions Operating The ThermometerDS = Field of View ChartsOS550 Series -3 FOV Spot DIA.* Spot DIA.* MM Distance Sensor to Object FT Measurement Techniques Using the Infrared Thermometer/Transmitter 11. General Operational Block Diagram Real Time Mode Active OperationReal Time Mode Visual Function Flow Chart Adjusting Emissivity Calculating Temperature Values Using the Alarm Functions To set the low alarm value OS552, OS553, OS554 To disable this mode, press the key again Icon disappears One Stop Bit Serial Printer Software Installation System Requirements Irtempsoft Connecting the IR-System to the PC Using the Infrared Thermometer/Transmitter Storing the Temperature Data on Command OS553, OS554 Erasing the Temperature Data from Memory Real Time Mode Active Recall Mode Passive OperationRecall Mode Reviewing the Last Parameters Using the Infrared Thermometer/Transmitter Reviewing Previously Stored Temperature Data OS553, OS554 Using the Infrared Thermometer/Transmitter Laser Sight Accessory Description Operating the Laser Sight Laser Sight Accessory Calibrating the Thermometer MaintenanceCleaning the Sensor Head Lens Maintenance Problem Solution Troubleshooting GuideProblem Minutes for the thermometer to stabilize Troubleshooting Guide Specifications Specifications are for all models except where notedOS552, OS553 Low alarm standard, with OS554 MA Analog Output MV/degree C or F Analog OutputVdc Analog Output Laser Sight Accessory OS550-LS Glossary of Key Strokes Glossary of Key Strokes Appendix How Infrared Thermometry Works a Thermal RadiationBlackbody Calculating Temperature Optics Field of View Metals Material Emissivity ε NonmetalsMethod Appendix Determining an Unknown Emissivity CWith masking tape fills the FOV of the thermometer Figure C-2. Determining Emissivity with a Drilled Hole Addendum Addendum to OS550/OS550-BB Manual Sensor Index Index WARRANTY/DISCLAIMER PH/CONDUCTIVITY Shop online at omega.com

OS550-BB Series, OS550 Series specifications

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