Grape Storage

By the time a beautiful cluster of grapes arrives at your local supermarket, it has been exposed to high levels of SO₂ (sulfur dioxide) to protect it from grape fungus and kill spiders. At the same time, it must be refrigerated and monitored at closely controlled humidity levels to preserve freshness for the market.

Unlike sample draw systems, Manning diffusion sensors monitor an entire facility continuously without concern for pump or filter maintenance, sample dilution or moisture in sample draw lines. Degradation inherent to sample draw systems is not a concern with the solid reliability of diffusion devices. This is especially apparent in facilities with continuous high moisture levels.

Manning Systems has met the challenge of packaging an ammonia gas sensor that will withstand the corrosiveness of sulfur dioxide and, at the same time, monitor only ammonia while ignoring all other gases in the area. The EC-F9-NH₃ electrochemical ammonia sensor with special modifications in a NEMA 4 stainless steel enclosure will perform season after season in these extremely hostile environments. Please discuss all grape storage applications with Manning Systems applications engineers.

Manning Systems latest innovation is its new family of gas sensing instruments with microprocessor-based SensorCheck™ technology. The revolutionary new SensorCheck™ technology monitors Manning Systems EC-F9-NH₃ ammonia sensor by testing it every 24 hours for electrical viability. If a sensor dries up or is disconnected, SensorCheck™ sends an indication that can be detected by a Manning Systems Gas Monitor or a PLC. For the new AirScan™ infrared family of sensors, every two seconds SensorCheck™ technology monitors the AirScan™ iR source and ensures that the dual channels are functioning properly. A notification signal will be transmitted if any of several performance parameters is not met. SensorCheck™ also monitors the incoming signal level from the source, as well as incoming voltage to ensure full signal strength.

Related products and technology

Manning Systems enclosures with optional ATMOS equipped^® technology (Adaptive Temperature and Moisture Optimizing System) feature the first enviro-adaptive technology available for gas sensors. Manning Systems electrochemical and infrared gas sensors with ATMOS equipped^® technology can automatically adapt to environments from -50°F to 100% humidity and washdown conditions, assuring industry leading performance in the harshest environments.

All Manning Systems sensors can be monitored by the GM-1 single channel gas monitor or the GM-10 or GM-4 multi-channel gas safety systems that provide an individual bargraph display of gas concentration for each channel, plus relay outputs for emergency response and ventilation control. The redundancy provided by a Manning Primary Safety System (MPSS) gives an extra measure of gas monitoring protection and peace of mind.

The new AirAlert™ 96d multi-channel gas monitoring system adds addressable RS-485 Modbus communication protocol to the broad line of Manning Systems readout/alarm units. A total of 96 gas sensors and relay modules can be linked to a single controller.

Manning Systems offers personal protection portables for the single- and multi-sensor toxic gas detector market. These innovative, low-cost portables are ideal for industrial hygienists, safety managers, petrochemical applications, fire departments, police and emergency responders at risk of exposure to toxic contaminants.