Wet Labs ECO FL, Руководство пользователя, Страница: 8 / 30

2 ECO FL User’s Guide (FL) Revision AN 4 June 2012
Optical Specifications for Fluorescence Meters
Specifications given below are typical. Linearity for all is 99% R
2
. Other ranges are available on
request.
Parameter EX/EM Sensitivity Range
Chlorophyll- a (Chl) 470/695 nm 0.02 µg/l 0–125 µg/l
Colored Dissolved Organic Matter (CDOM) 370/460 nm 0.09 ppb 0–500 pp
Uranine (UR) (fluorescein) 470/530 nm 0.05 ppb 0–400 ppb
Rhodamine (Rh) 540/570 nm 0.03 ppb 0–230 ppb
Phycocyanin (PC) 630/680 nm 0.03 ppb 0–230 ppb
Phycoerythrin (PE) 540/570 nm 0.03 ppb 0–230 ppb
1.2 Connectors
ECO -series digital fluorometers use a six-pin bulkhead connector. The pin functions for this
connector are shown below.
Pin Function
1 Ground
2 RS-232 (RX)
3 Reserved
4 V in
5 RS-232 (TX)
6 Analog out
WARNING
If you are going to build or use a non-WET Labs-built cable, do not use the
wire from pin 3 or the ECO meter will be damaged.
Input power of 7–15 VDC is applied to pin 4. The power supply current returns through the
common ground pin. The input power signal has a bi-directional filter. This prevents external
power supply noise from entering into
ECO FL, and also prevents internally generated noise
from coupling out on to the external power supply wire. Data is sent out the serial output pin.
1.2.1 ECO FLB, FLSB Connectors
ECO FLB and FLSB (units with internal batteries) have a second bulkhead connector that
comes with a jumper plug to supply power to the unit. The pin functions for this
connector are shown below.
Socket Function
1 V in
2 N/C
3 Battery out