Manual Stanley FMHT0-77422 (page 7 of 194) (All languages)

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3 Button

• Used to change temperature units from Fahrenheit to

Celsius.

• When setting emissivity (

), high alarm value (HAL),

or low alarm value (LAL), press this button to

decrease the value to be set.

4 MODE Button

• Each time you pull the trigger (for > 1 sec) to take

measurements, the thermometer records the maximum

(MAX), minimum (MIN), the differential (DIF) between the

maximum and the minimum, and the average (AVG) of

all readings taken during this pull. These data are stored

in memory and can be recalled with the MODE button

until you pull the trigger (> 1 sec) once more. When you

pull the trigger (> 1 sec) once more, all these data will

be erased from memory and the thermometer will start

a new recording.

• When you pull and hold the trigger, the reading on

the main display will update every second with the

temperature of the target surface, and when you release

the trigger, the last reading is locked until you take new

measurement or the thermometer turns off automatically.

• You can press the MODE button to display the maximum

(MAX), average (AVG), minimum (MIN), difference

(DIF), low alarm value (LAL) and high alarm value

(HAL) sequentially on the bottom display. The process is

illustrated in Figure A.

NOTE:

• To read value correctly, please observe the bottom display

carefully to see whether the negative sign „-” and the

decimal point appear.

• After you disconnect the battery from the thermometer for

a while, all the settings will be restored to default values

and all the recorded measurement data will be erased

from memory.

How to Set the Thermometer

Setting the High Alarm and Low Alarm

1. After the thermometer has been turned on, press and hold

down the MODE button until the symbol ashes, then

release the button.

2. Press the MODE button until LAL appears and ashes,

now the present low alarm value is being shown on the

bottom display.

3. Press the

button to decrease or the button to

increase the low alarm value.

NOTE: Press and hold down the

or button for

fast adjustment.

4. After setting the low alarm value, press the MODE button.

HAL ashes and the high alarm value is shown on the

bottom display. Use the same method of Step 3 to adjust the

high alarm value.

5. If the temperature of target surface reaches or is lower

than the low alarm value,

icon will appear and

ash and the built-in buzzer will beep and the LCD will

momentarily turn blue when you press and hold the trigger.

If the temperature of target surface reaches or is higher than

the high alarm value, icon will appear and ash and

the buzzer will beep and the LCD will momentarily turn red

when you press and hold the trigger.

6. At any time, you can press and hold down the MODE button

to exit setting mode.

NOTE:

• Alarm accuracy is ± 1°C (or ± 2°F).

• The low and high alarm values can be set only within the

thermometer’s measurement range.

• The high alarm value must be higher than the low

alarm value.

Emissivity/ Setting Emissivity

Emissivity describes the energy-emitting characteristics of

materials. Most (90% of typical applications) organic materials

or non-shiny surfaces have an emissivity of 0.95 in the

default setting. Inaccurate readings will result from measuring

shiny or polished metal surfaces. To compensate, cover

the surface to be measured with masking tape or at paint.

Allow the tape or paint to reach the same temperature as the

surface it is covering. Then measure the temperature of the

covered surface.

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Stanley FMHT0-77422 Manual

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