Fluke 561 [8/16] Users manual

561

Users Manual

Batteries

(2)

(+)

Display

Function Buttons

Laser

Trigger

Battery

Cover

efh007f.eps

Figure 2. Infrared Thermometer

Display

The primary temperature display reports the current or last IR temperature read until the 7-

second hold time elapses.

The secondary temperature display reports current thermocouple temperature when a type-K

thermocouple is attached. When a thermocouple is not connected, the small temperature

display reports a choice of maximum, minimum, or difference between maximum and minimum

temperature.

You can toggle through the minimum, maximum, and difference IR temperatures anytime the

display is on. The MIN, MAX, and DIF temperatures are constantly calculated and updated

when the trigger is pressed. After the trigger is released, the MIN, MAX, DIF temperatures are

held for 7 seconds.

Note

When the battery is low, B appears on the display.

The last selection (MIN/MAX/DIF) is maintained on the secondary display even after the

Thermometer has been turned off, providing the batteries have not failed.