YSI IQ SensorNet FDO Sensor - Manual (Page 44)

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Indexes FDO
®
70x IQ ...
EC833x Sensor could not be calibrated,
sensor blocked for measurement
Cause: instable signal
* Check temperature adjustment
* Check calibration conditions (see operating manual)
* Repeat calibration
EC933x Calibration error, measurement disabled
Cause: Sensor cap is missing, leaky, depleted, or defective
* Clean sensor and space between cap and sensor according to
op.instructions
* Screw on sensor cap securely
* Repeat calibration
* Replace sensor cap
EI133x Operational voltage too low
* Check installation and cable lengths, Follow installation instructions
* Power supply module(s) overloaded, add power supply module(s)
* Check terminal and module connections
* Defective components, replace components
EI233x Operational voltage too low, no operation possible
* Check installation and cable lengths, Follow installation instructions
* Power supply module(s) overloaded, add power supply module(s)
* Check terminal and module connections
* Defective components,
replace components
ES133x Component hardware defective
* Contact service
Message code Message text