Replacement Of The Optiox Sensor Cap; Interfering Substances Of The Inlab® Optiox Sensor - Mettler Toledo SevenGo pro Instrucciones De Montaje

8.5 Replacement of the OptiOx sensor cap

The sensor cap has a lifespan of 1 year once the first measurement is taken. The meter will display a message
"sensor cap expired" when the cap needs to be replaced.
Note
The OptiOx™ sensor contains an internal clock which counts down the 365 day life span of a new sensor
cap. The countdown begins once the OptiOx™ cap has been attached, the sensor connected to the device
and the first measurement or calibration carried out. This process cannot be undone once the first
measurement has been carried out.
1 Pull the expired sensor cap off the sensor without twisting. See fig. A.
2 Remove the existing O-rings from the sensor. See fig. B.
3 Use a lint-free cloth to remove any moisture from the sensor body. Make sure there is no moisture in the O-
ring grooves.
4 Use your finger to apply a layer of lubricant arount the O-ring grooves. Place the new O-rings on the sensor
(included in the delivery of a new sensor cap). Apply another thin layer of lubricant to the O-rings and
grooves. Do not transfer grease to the lens or sensor pins.
5 Gently wipe the lens with a clean cloth and allow it to dry thoroughly. Do not wet the lens area with water
or any other solution. Examine the lens for scratches or dirt.
6 Install a new OptiOx sensor cap onto the optical sensor by aligning the arrow on the cap with the index
mark on the sensor. See fig. C.
Without twisting, firmly press the cap onto the sensor until the cap is flushed with the sensor body. Make
sure that the O-rings are not pinched or rolled between the cap and sensor. See fig. D.
7 After replacing the OptiOx sensor cap, a vapor-saturated air calibration should be performed.
Note
Do not remove the OptiOx cap after installation until a cap replacement is necessary.
8.6 Interfering substances of the InLab® OptiOx sensor
Damage of the sensor!
Do not use the InLab
chloroform or methylene chloride.
Following substances may interfere with the dissolved oxygen measurement:
Alcohols greater than 5%,
Hydrogen peroxide (H
SevenGo (Duo) pro™/OptiOx™
CAUTION
®
OptiOx sensor in solutions that contain organic solvents, such as acetone,
O ) greater than 3%,
2 2
Maintenance​ ​ 31