73
Chlorophyll
Phycocyanin
Phycoerythrin
Temp (°C)
RFU
μg/L
RFU
μg/L
RFU
μg/L
30
14.0
56.5
11.4
11.4
37.3
104.0
28
14.6
58.7
13.1
13.1
39.1
109.0
26
15.2
61.3
14.1
14.1
41.0
115.0
24
15.8
63.5
15.0
15.0
43.0
120.0
22
16.4
66
16.0
16.0
45.0
126.0
20
17.0
68.4
17.1
17.1
47.0
132.0
18
17.6
70.8
17.5
17.5
49.2
138.0
16
18.3
73.5
19.1
19.1
51.4
144.0
14
18.9
76
20.1
20.1
53.6
150.0
12
19.5
78.6
21.2
21.2
55.9
157.0
10
20.2
81.2
22.2
22.2
58.2
163.0
8
20.8
83.8
22.6
22.6
60.6
170.0
TAL Sensor Calibration
A 1- or 2-point calibration can be completed for all channels on the TAL-PC and TAL-PE sensors.
A 1-point calibration, typically completed in clear deionized or distilled water, is simply a re-zeroing of the sensor.
This calibration does not reset the second point entered during the previous 2-point calibration. The consequence is that error will
be alleviated at and near zero, but more error can accumulate in the measurement the farther away from zero the measured value
is. The amount of error is dependent upon how much the second point drifts, which is not always equivalent to how much the zero
point drifts.
For many users, especially those with sites where pigment is rarely detected and values are at or near zero most of the time, the far-
from-zero accumulation of error is a non-issue. For others, it is best to perform a 2-point calibration using a Rhodamine WT solution.
NOTE:
The ProDSS Total Algae Sensors (both PC & PE) must be used with the Extended Sensor Guard [Item# 626740]
which is sold separately.
Rhodamine WT Dye Solution Preparation
(continued)
Sensors, Calibration, and Maintenance
