Apogee MQ-500是在相当一段时间内在消费者级别提供的第一个新的PAR仪表。Apogee的新的和改进的MQ-500改进了尊贵的MQ-200米which is pretty much the defacto PAR meter in the aquarium hobby.
远程PAR传感器完全防水,使其成为测量水族馆内的标准杆的理想设备。Apogee MQ-500的记录器/读取器实际上与其前身相同,只有几个略有差异。
在MQ-500 PAR仪表中,Apogee徽标略有更新,并用“备用名称”写的“仪器”。此外,MQ-500没有专用的阳光/ELEC模式来在阳光下或像MQ-200这样的人工(电动)照明下进行测量。
By far the biggest difference between Apogee’s MQ-200 and MQ-500 meters it the completely new sensor which is bigger, taller, and more importantly, more accurate and sensitive to the opposite ends of the PAR spectrum. The MQ-500 from Apogee has a much larger sensor area too, with approximately double the diameter of the MQ-200 sensor.
This increased surface area of the Apogee MQ-500 PAR Sensor is supposed to read more of the light, especially in the blue end of the spectrum, which is quite important in our windex-blue, LED lit aquariums.We tested the Apogee MQ-200 and MQ-500 side by side under different channels of LED colored light of a Radion and found quite a significant difference in measurements. The MQ-200 read higher especially under UV, Blue and Royal Blue channels of the Radion XR30w Pro 3rd Gen, slightly higher under white and green light, and only under red light did the newer MQ-500 give a higher PAR measurement.
Although the MQ-200 is not as sensitive in the narrower wavelengths of blue light as the spectrum gets closer to 400nm, apogee has actually offered测量后校正因子. These correction factors are necessary for using their Apogee meters under lighting with narrowband peaks of lighting, like those you would expect to see in LED-lit aquaria.
We’re still getting a feel for how the MQ-500 functions compared to the MQ-200 and we’ll revisit this device with a more in depth review. The moral of the story is that you can’t just get a meter and log its measurements as 100% accurate without a greater understanding of how these devices work, and how they respond to the wavelength of light you are measuring.