Time Mode (Time); Transmission Mode: Measuring The Energy Throughput Of Glass Windows; Readings Outside Of The Measuring Range - VOLTCRAFT SLX-300 Notice D'emploi

i) Time mode (TIME)
j) Transmission mode: Measuring the energy throughput of glass windows
You can use the meter to measure the energy throughput of car windows or check the efficiency of glass windows in
buildings. You can also measure the intensity of a light transmitted through a pane of glass.
Incoming light
Proceed as follows:
• Turn the meter on and set the display to zero before taking a measurement. For details, see section d) "Setting
the sensor to zero (calibration)".
• Use the MODE button (1) to select "Transmission" mode.
• Point the sensor at the sun with the window open. Take a reading and press the
reading. The direct reading (O) will appear in the first line.
• Close the window, point the device through the window at the sun and take another reading.
• Write down the reading (M) in the first line. The transmittance coefficient (Q) will be displayed in percent on the
third line of the display.
• You can compare the two values manually to calculate the energy efficiency of the window.
Transmittance coefficient = transmitted radiation/incoming radiation × 100 %, (0 ≤ T ≤ 100 %)
Check the window at least once per year to monitor the efficiency.
k) Readings outside of the measuring range
"H I" indicates that the measured energy reading is outside the range of the meter.
• Press the MODE button (1) to select "TIME" mode.
• Press the S/UP button (3) to set the duration of the automatic measurement
cycle. The following measurement intervals are available: 30 seconds, 1, 2,
5, 10, 30 minutes.
Glass
Penetrated light
/HOLD (4) button to freeze the
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