Temperature measurement
To measure the temperature point the IR sensor's opening towards the ob-
ject to be measured and press the key to measure the temperature.
Make sure that the measurement spot size is not larger than the object to be
measured. The currently detected temperature is shown in the LCD. To lo-
cate the hottest spots of an object, point the Testboy
outside the desired area. Then search for the hottest point by moving the de-
tector across the surface of the object in a zigzag pattern holding down the
temperature measurement key all the while until you find the warmest spot.
After releasing the temperature measurement key the temperature detected
will be shown in the display for approximately 60 seconds. During this time,
"HOLD" will be shown. The device will switch itself off to save batteries after
approximately 60 seconds.
Choose the unit you wish to be displayed (°C/°F) using the "AB" key. The la-
ser, when it is turned on, shows the mid-point of the measurement area ap-
proximately. This means you can easily make accurate readings. To activate
the laser, press the temperature measurement key and the "Down" key until
the laser is turned on. The LCD then shows the laser symbol. To turn the la-
ser off again, press the temperature measurement key and the "Down" key
again until the laser symbol disappears.
When taking measurements in a dark environment you can turn on the back-
ground illumination for the display using the buttons temperature measure-
ment and "Up".
®
Testboy
TV 325
Operation
®
TV 325 at a location
35