Omega OSP SERIES - Manual (Page 29)

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10.6 Buzzer On/Off
If the Alarms option is installed, it is possible to switch the buzzer on or off. This page allows the set-up of the acoustic
signal.
e
Set
°C
Lock
e
Set
°C
Lock
When the “Buzzer” is switched -Off- the alarm conditions will be announced only with the relevant -HAL- or -LAL-
message on the display.
10.7 OSP 500/800 decimal point selection
N OTE : THIS FEATURE WORKS ON OSP 500 OR OSP800 WITH FIRMWARE FROM VERSION 4.001.
It is possible to display the temperature measured with a decimal digit.
The following procedure is used to enable the operating mode.
" Switch the instrument off.
" Keep pressed <*>+<SEL> keys and switch the unit on by pressing the <Trigger> key. The temperature
measurements will be displayed with the decimal digit.
Repeat the above procedure to disable the operating mode.
10.8 Ambient Temperature Compensation (TAM)
This function is used to compensate the measure from the ambient temperature.
Targets which have low emissivity will reflect energy from their surrounding environments, which is going to add to their
own emitted energy. If the temperature of the surrounding environment is the same value as the internal temperature of
the unit, there is no need to consider this value as it is automatically and continually measured. However, in some
industrial situations the surrounding environment (machines, furnaces, or other heat sources) has a much higher value
than the one of the internal of the unit temperature. The table below "Effect of TAM on Accuracy" underlines these effects
on measurement accuracy, with and without the use of the Ambient Temperature Compensation mode.
The Ambient Temperature Compensation mode should be used whenever the stated following points are true :
1. The target has a low emissivity.
2. Temperatures of objects facing targets are much hotter than the temperature of the unit.
3. An increased measurement accuracy is required
Actual Target
Temp.
Emissivity Ambient Temp. Indicated Temp.
w/o TAM
Indicated Temp.
w/ TAM
°C °F °C °F °C °F °C °F
100 200 0.8 25 80 100 200 100 200
100 200 0.8 40 100 102 203 100 200
100 200 0.8 150 300 120 250 100 200
100 200 0.6 150 300 160 321 100 200
Note : The internal temperature of IR thermometer is assumed to be 25 °C (80 °F)
• Press the <SEL> key until one of the following indications is displayed :