Data Harvest EasySense Q 3 Manuel - Sayfa 4

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Sayfayı Yazdır
The yellow arrow (SCROLL) is used to scroll through menus on the LCD screen
or to browse measurements during data logging.
EasySense Q has no ON/OFF switch. To operate, press any of the buttons on the top
panel.

The built-in sensors

EasySense Q 3 has three built-in sensors and Q 5 has five. They are:
Built-in Sensors
Sound
Light level
Temperature
Barometric Pressure 0 to 110 kPa
Humidity
The information from the built-in sensors are shown on
the LCD display numbered from three onwards. Number
one and two are reserved for plug-in sensors - these will
not appear in the list unless there is a sensor plugged
into the input/inputs.
The sensors built-in to EasySense Q are analogue devices.
3) Sound Sensor
Used to measure the level of sounds. Responsive to both single sounds
(such as a whistle or handclap) and continuous background noise (such as
passing traffic, classroom noise).
4) Light Level Sensor
There are 2 ranges to choose from (see page 13 for altering the selected
range). The lower range (0 – 1 000 lux) is more responsive and therefore
more suitable for recording at indoor light levels. The larger range (0 –
100 000 lux) is more suitable for recording the light level outdoors.
5) Temperature Sensor
Used to measure the temperature of EasySense Q's environment.
Notes: For convenience the built-in temperature sensor is displayed on the same
scale as the plug-in temperature sensors. In fact EasySense Q can only be used in
an environment of 0 to 40°C, 0 to 95%RH (non-condensing).
The speed of reaction to a change in temperature will be delayed by
EasySense Q's plastic case.
6) Barometric Pressure Sensor Range: 0 to 110 kPa
(EasySense Q 5 only) For weather and pressure investigations.
Range
EasySense Q 3 EasySense Q 5
40 to 110 dBA
0 to 1 000 lux
0 to 100 000 lux
-30 to 110°C
0 to 100% RH
Range: 40 to 110 dBA.
Range 1: 0 to 1 000 lux
Range 2: 0 to 100 000 lux (0 – 100 klux)
Scale: - 30 to 110ºC
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3)
46.9 dBA
4)
69 1x
5)
26.8
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