HELPFUL OPERATING HINTS
Errors in Chlorine readings are often caused by improper operation the analyzer. If analyzer readings do not
agree with test result listed below are some typical problems which can cause this.
TIP PROTECTOR NOT REMOVED: Make sure the Tip Protector is removed from the sensor before operating
or calibrating the instrument.
If the above steps do not result in proper operation, proceed follows:
PREVIOUSLY LOOSENED MEMBRANE CAP : This is another frequent cause of improper operation. Once a
membrane cap is installed and loosened, it will never operate properly again, even if tightened. Once
loosened, the membrane cap must be replaced with a new one. See SENSOR MAINTENANCE.
INSUFFICIENT STIRRING RATE : Is another cause of improper operation. If the natural rate of flow is not
rapid enough a Remote Stirrer must be used.
IMPORTANT: Make sure the sensor is located so that it will always remain submerged.
ELECTROLYTE LEAKAGE: The sensor will operate if it is not absolutely full. It is a good idea, however, to
check it periodically and fill it if necessary. If it is necessary to fill the electrolyte reservoir, check the following:
Check the membrane. Sometimes a sharp object will puncture the membrane causing a pinhole too
small to be seen. Replace membrane if necessary. See SENSOR MAINTENANCE.
Check the electrolyte fill screw. It should be tight and there should always be an O-ring under it for
ALGAE AND OTHER GROWTHS ON SENSOR : Algae and other growths may develop on the tip in certain
applications. These growths may interfere with accuracy and should be removed. See SENSOR
The sensor supplied with the instrument is, for all practical purposes, interference free.
Refer to external wiring diagram. (Fig. 3)