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SP-765SS Series Sensor Manual service@pyxis-lab.com | +1 (866) 203-8397 21
Figure 2 1 pH High Calibration
4.2.3 4-20mA Span
The default oxidizer 4-20mA span for ST-765SS Series probes is as follows.
ST-765SS-FCL 4mA=0ppm Free Chlorine / 20mA = 5ppm Free Chlorine
ST-765SS-CLO
4mA=0ppm Chlorine Dioxide / 20mA = 5ppm Chlorine Dioxide
Tap 4-20mA SPAN to change the free chlorine or chlorine dioxide value corresponding to the 20mA output
to a lower value as seen in Figure 20 . *NOTE* The 4-20mA Span feature allows users to REDUCE the upper
20mA output scale only. You cannot INCREASE the upper limit of the sensor beyond the range of the
sensor.