STANDARD OPERATING PROCEDURE – THERMOGRAPHY USING FLUKE TIS40 THERMAL IMAGER

 OBJECTIVE:

To establish a procedure for Thermography activity.

 

POLICY:

 

Taking thermography by using digital FLUKE TIS40 THERMAL IMAGER accurately by following standard procedure.

 

RESPONSIBILITY:

 

Shift Engineer

 

PROCEDURE:

 

Power On and Off:

 

·        To turn on or turn off the Imager, push and hold  for >3 seconds.

·        Remove sensor cap and place the sensor perpendicular to the light.

 

Note

All thermal imagers need sufficient warm-up time for the most accurate temperature measurements and best image quality. Although most imagers are fully warmed up in 3-5 minutes, it is always best to wait a minimum of 10 minutes if the most accurate temperature measurement is important to your application. When you move the Imager between environments with large differences in ambient temperature, more adjustment time can be required. The Imager includes a calibration on-demand feature that causes a calibration event to occur when you press O once briefly during operation. This feature provides the best accuracy and avoids disruption of a timing-sensitive image capture by the next automatic calibration.

 

 

 

Controls for Image Capture:

 

The two-part trigger is located in the standard trigger position for a pistol-grip device. The larger, green trigger is the primary trigger. The smaller, black trigger is the secondary trigger. In normal operation (video is off), the function of the primary trigger is to capture a thermal image for possible storage to memory by the user. When video is on, the primary trigger is the start/stop for video recording. The secondary trigger operates the laser on supported models.

 

Control Buttons:

 

The function and cursor buttons are the primary controls. These buttons move the cursor through the menu structure to set the features. Controls and Adjustments

·        User-selectable temperature scale

·        Language/localization selection

·        Time and date settings

·        Emissivity selection

·        Reflected background temperature compensation

·        Transmission correction

·        User-selectable hot spot and cold spot, and center point on the image

·        Expand/contract measurement box with MIN-AVG-MAX

·        Color alarms

·        User-selectable backlight setting

·        Graphic information display (selectable)

 

In general, push buttons:

 

1. to set the change and go back to the live view.
2. To set the change and go back to the previous menu.
3. To cancel the change and go back to the live view. ►◄▼▲ to move the cursor and highlight an option. In live Manual Mode, the arrow buttons are always active to adjust Level and Span.

 

Memory:

Push  to go directly to the preview images of stored files.

 

WARNING

To prevent eye damage and personal injury, do not look into the laser. Do not point the laser directly at persons or animals or indirectly off reflective surfaces.

 

Image Capture

 

Point the Imager at the target object. Make sure that the object is in focus. Pull and release the primary trigger. This will capture and freeze the image. To cancel the captured image, pull the primary trigger again or F3 to return to the Live view. Depending on the selected file format settings, the Imager shows the captured image and a menu bar. The menu bar lets you save the image, edit some image settings, and add voice annotation or IR-PhotoNotes™ digital photos.

 

Temperature Measurement:

 

All objects radiate infrared energy. The quantity of energy radiated is based on the actual surface temperature and the surface emissivity of the object. The Imager senses the infrared energy from the surface of the object and uses this data to calculate an estimated temperature value. Many common objects and materials such as painted metal, wood, water, skin, and cloth are very good at radiating energy, and it is easy to get relatively accurate measurements. For surfaces that are good at radiating energy (high emissivity), the emissivity factor is ≥90 % (or 0.90). This simplification does not work well on shiny surfaces or unpainted metals as they have an emissivity of the actual temperature.

 

REVISION GUIDE:

Any change in the systems will need a change in the SOP.