5 BIG REASONS TO SWITCH TO OPTICAL DO MEASUREMENT
For many years, the biotech industry had relied on polarographic technology for dissolved oxygen (DO) measurement. Now, optical measurement of oxygen (a relatively recent development) is a more preferred method because it’s highly accurate, simplifies processes and provides much easier handling.
To help you understand the technology, Mettler Toledo broke down five reasons to switch to optical DO measurement.
5 reasons to use optical measurement
1. Simpler technology.
In polarographic sensors, the sensor assembly after any servicing must be conducted carefully to avoid issues that can negatively affect measurement. In optical sensors, on the other hand, the only replaceable item is the part that houses the fluorophore.
2. No need for polarization.
While polarographic sensors must be polarized (attached to a voltage supply) before being used, optical sensors do not contain an electrolyte, so polarization is not required.
3. Easier maintenance.
Polarographic sensors require a significant amount of maintenance. This isn’t the case for optical sensors. These only have one consumable part, which needs to be replaced approximately once a year.
4. Predictive diagnostics.
Not only do Mettler Toledo’s optical sensors have comparable diagnostic algorithms implemented, but the algorithm uses the fluorophore consumption rate since the last calibration and adjusts itself appropriately. That means the diagnostics becomes more reliable over time.
5. Greater measurement stability.
Measurements from polarographic sensors drift from the true DO value over time. Optical measurement technology drifts far less — resulting in a more reliable sensor signal and in a virtually non-drifting sensor.
It’s time to switch to optical DO measurement
Want to learn more about optical measurement? We offer a full range of consulting services for process control equipment, instrumentation, sub-assembly, design and fabrication, engineering, calibration and certification.
To find your perfect process control instrument, give us a call at 1.800.333.7519 or contact us online.