Hello. My name is Dave Joseph and I’m industry manager for the chemical, pulp and paper, and metals and mining industries at Rosemount Analytical. I want to share some news about how you can improve pH sensor maintenance and make your life easier.
If you see someone carrying a plastic tray with small multicolored bottles of liquid at work, there’s a good chance they’re going off to work on pH sensors (unless you happen to be in a bar or a plane…). The standard calibration for pH sensors is to immerse the sensor in two different buffers to prove that the sensor works and to calibrate the sensor’s response. This works great but may not be too convenient if the sensor is located where it’s really hot or wet or noisy or, well, you get the point. Our new smart sensors have a chip inside that stores all calibration data, which allows the sensor to come pre-calibrated from the factory. Subsequent calibrations (as needed) can be done in a lab or workshop and the sensor is easily moved from place to place since the cable connection is a VP quick disconnect. Pull sensors from the field, calibrate them in the lab, and return them to service on the next visit.
Smart sensors will be available on nearly all our pH models and will replace the preamplifier that is typically required to process the mV signal from the pH sensor. The latest analyzers, including models 1056, 1057 and 6081, are smart-aware, but the beauty of the smart design is backwards compatibility — other analyzers can use the smart sensors to measure pH just like before, but when connected to a newer analyzer, the additional smart features are activated.
Early adopters have liked the smart sensors so much that we offer a benchtop calibrator that incorporates a 1056 analyzer and has everything you need for periodic calibration of sensors.
Next time, I’ll talk about how the smart sensors help you manage sensor diagnostics and schedule periodic maintenance.
New technologies in airless ovens offer a more flexible, cost-saving choice over traditional air-bath ovens. The airless oven enables the GCs to perform well in environments with changing temperatures. Air-bath ovens rely on plant or compressed air to heat the analytical oven to a constant and optimal temperature – which means a temperature above the dewpoint and optimized for component separation. Airless ovens don’t require expensive air sources, and consequently, consume less power. This means that the GC can be mounted closer to the sample point, reducing sample line run lengths, and ultimately, saving money, reducing the volume of sample required, and in installations requiring heated lines, reducing utility requirements. In fact, an airless oven can reduce overall operating costs by up to 70 percent. In addition, they take up less space than air baths. Reduced space and energy requirements make them well suited for a number of process applications.
Analyzer shelters can be one of the most substantial expenses associated with your analytical solution. There are three choices – analyzer house, a three-sided shelter or sunshield, and a field-mounted gas chromatograph with no shelter.
Regardless of what kind of analyzer shelter you select for your process application, one tip for reducing the total cost of ownership is to re-evaluate the upgrade path. Rather than replacing the entire analyzer house when a new chromatograph is necessary, you can instead install a new non-temperature-sensitive field-mountable gas chromatograph into your existing shelters. This substantially reduces costs and implementation expenses.
The right analyzer is always unique to your application, but it can have a tremendous impact on capital expenses and long-term operating costs. By considering these options, you can greatly impact the bottom line.