叶绿素计常见问题

我需要下载什么电缆数据到my computer?
The MC-100 uses a standard mini USB to USB cable to download information onto the computer, one is included with purchase. The included cable is all that is needed to connect the meter to a computer. Once connected the meter comes up like a flash drive in a folder.
我应该多久重新校准一次传感器？
每次打开设备时，在设备进行测量之前，都需要进行校准。校准过程检查样品室是否干净（通过确保信号强度足以进行测量），并为仪表提供100%的透射率基线。
Is this a SPAD meter?
No, this is not a Minolta SPAD Meter; however, the MC-100 can be set to output SPAD units instead of concentration (µmol of chlorophyll per m-2或叶绿素含量指数（CCI）单位。
这表是用什么单位计量的？
MC-100上的默认设置以叶绿素含量指数（CCI）为单位进行叶片测量。MC-100的主要优点是能够将仪表的输出设置为以叶绿素浓度单位（µmol m）显示-2). There are concentration output settings for 22 specific plant species and a separate conversion setting for use with any species that is derived from the average of all 22 species. For reference and comparison purposes, the Apogee meter can also be set to output relative units in CCI or SPAD.
How do I adjust the contrast on the screen?
要使显示的文字变暗，请按住向上箭头。要使显示的文字变亮，请按住向下箭头。
What should I do if I hear beeping when pressing buttons on my meter but the screen isn't displaying anything?
The most likely issue with the meter is that the screen contrast has been adjusted单击此处for instructions to correct the issue. If the problem remains, please contact technical support.
What is the smallest leaf I can measure with this sensor?
The meter measures chlorophyll concentration over two areas.
  1. 64 mm2(circle with 9 mm diameter)
  2. 20 mm2（直径为5 mm的圆）-带视野缩小器
What should I do if my meter has inconsistent readings?
MC-100扩散器（样品室中的白色圆盘）上的水分或碎屑是导致读数不一致的常见原因。如果需要清洁，最好使用水或异丙醇和软布或棉签去除有机沉积物。切勿在扩散器上使用研磨材料或清洁剂。清洁时请小心，以免意外拆除扩散器。
如果我的电表不能工作或不能通电，我该怎么办？
第一步是尝试更换电池。MC-100由9v电池供电。如果这不起作用，请尝试执行主复位，方法是卸下9伏电池，按住电源开关30秒，重新插入电池并接通电源。如果您收到错误代码，请参阅手册的故障排除和客户支持部分。
I received an error code on my meter. How do I fix the error?
Error codes and their corresponding fixes can be found on theTroubleshooting and Customer Support section of the manual.
如何校准仪表？
MC-100需要在装置通电后进行第一次测量时进行校准。要校准仪表，请依次选择“运行”、“测量”和“校准”。在按下测量臂之前，检查样品室是否干净，然后按住测量臂进行校准。重要提示：继续按住手臂直到屏幕显示“释放手臂”。当仪表校准时，屏幕将显示“校准”。等待！状态：忙碌”。校准扫描完成后，屏幕将显示“calibration”（校准）。等待！状态：松开手臂“此时，松开手臂。仪表现在已校准并准备进行测量。
My species isn't listed in the MC-100. Will the meter still work for me?
是的，MC-100有一个通用的设置，其中有一个公式适合所有数据（该公式是MC-100中列出的22种物种的平均值）。此设置可在菜单中找到“通用”。
For what species does the MC-100 directly determine chlorophyll concentration?
The MC-100 has equations for the following species: Rice, Wheat, Soybean, Barley, Pepper, Tomato, Pea, Kohlrabi, Lettuce (cultivar Waldman's Green), Lettuce (cultivar Buttercrunch), Corn, Sorghum, Quaking Aspen, European Birch, Paper Birch, Crimson King Maple, Norway Maple, Japanese Maple, Boxelder, Crab Apple, Purple Leaf Sand Cherry, Lilac, and Forsythia.
If your species is not listed above, the meter has a generic setting that uses an equation made to fit to all data (the equation is an average of equations for the 22 species). This setting can be found in the menu as "GENERIC".
How do I convert from µmol m-2to mg m-2?
读数单位为µmol m-2can be converted to units of mg m-2by multiplying by 0.9. The reverse conversion from mg per m-2至µmol m-2可以乘以1.11。
How does the MC-100 work?
The MC-100 uses LEDs that emit specific wavelengths in the red and infrared ranges. The detector analyzes the ratio of the two wavelengths to determine chlorophyll concentration index. This index is then converted using equations derived by scientists at Utah State University to output chlorophyll concentration in µmol m-2叶表面的。有关MC-100如何工作的详细信息可以在manual, by viewingApogee Chlorophyll Meter Quick Overview, or by viewingMC-100 Chlorophyll Meter in Depth.
如何使用视野缩小器？
  1. To use the reducer you must calibrate the meter without the reducer installed. Installing the reducer prior to calibration will result in an error message to clean the sample chamber. Note: Field of view reduction errors were less than 5 % for all leaves tested using the steps below.
  2. 小心地安装异径管，轻轻地将其压入样品室的仪表体侧
  3. You are now ready to make measurements on smaller leaves. *Note: If the meter turns off steps 1 thru 2 will need to be repeated before making a new measurement.
  4. 要拆下异径管，请小心地用针压下泡沫垫圈，然后从样品室中取出异径管。
Relative Indices - CCI and SPAD

Many hand-held chlorophyll meters used by researchers output a relative index that is non-linearly related to chlorophyll content; Chlorophyll Content Index (CCI) and Special Products Analysis Division (SPAD) are two common indices used by these meters. Measurements made using a meter that outputs a relative index are not equal to the actual chlorophyll concentration in a leaf, therefore, doubling the reading displayed on the meter does not equal a doubling of chlorophyll concentration in the leaf. While it is possible to convert the relative indices to chlorophyll concentration using experimentally determined equations for you specific plant species, Apogee’s MC-100 Chlorophyll Concentration Meter measures chlorophyll concentration directly and can also provide readings in both CCI and SPAD index.

SPAD指数CCI指标