VisiPro DO
Monitoring dissolved oxygen levels in volatile chemical and pharmaceutical environments requires absolute safety without compromising precision. The VisiPro DO transforms your hazardous area monitoring by securing both ATEX and IECEx certifications, ensuring total compliance and safety in explosive zones.
By eliminating the need for conventional amperometric measurement and replacing it with optical technology, the VisiPro DO does not consume oxygen during measurement, meaning it requires absolutely zero minimum flow or stirring. This stainless-steel probe is robust and easy to install, with a simple 2-wire connection and instantly track measurements ranging from 4 ppb up to 25 ppm. Whether you are blanketing tanks with nitrogen, purging lines, or inerting reactors, the VisiPro DO drastically simplifies your maintenance schedule while keeping your process control system seamlessly connected.
Applications of VisiPro DO include:
- Chemical Manufacturing: Ideal for hazardous area blanketing (Nitrogen) and inerting to prevent combustion
- Pharmaceutical Processing: Safe deployment during critical sparging and purging applications
- ATEX and IECEx Certification : Guarantees protection and compliance when deployed in explosive chemical and pharmaceutical environments
- Oxygen Luminescence Quenching: Zero polarization time required, thus allowing for rapid start-up and highly reliable readings
- Integrated Digital Transmitter: Direct 4-20 mA or digital HART 7.0 communication to your process control system with no extra hardware
- No Oxygen Consumption: Highly accurate even in stagnant fluids, entirely eliminating the need for process flow or stirring
Variants
Available in 120 mm and 225 mm lengths
Available with the ODO cap H0 for hygienic pharmaceutical applications or the ODO cap H2 for harsh chemical applications
Frequently Asked Questions
Yes. The VisiPro DO is the first optical dissolved oxygen sensor to carry both ATEX and IECEx certifications, making it completely safe for explosive environments like chemical and pharmaceutical plants.
The sensor features an integrated transmitter in its head, allowing for easy installation via a 2-wire connection that outputs a direct 4-20 mA standard signal or digital HART communication directly to your process control system.
No. Because the sensor uses optical luminescence quenching, it does not consume any oxygen during measurement, making it completely flow-independent.
The sensor is highly durable and can withstand process temperatures from -20 to 140°C, though it is designed to temporarily suspend DO readings when temperatures exceed 85°C to protect the optical elements.
Yes. Thanks to its smart integrated transmitter and wireless communication capabilities, relevant sensor data is stored in the head, allowing you to easily perform laboratory calibrations via a computer before field installation.


VisiTrace
VisiWater
Oxysens DO
Oxyferm FDA VP XL