Freezers

Food storage freezers are usually one of the more stable environments for applying gas sensors. The room typically stays at a constant temperature and food products are packaged and palletized, although product packaging, chemicals for cleaning, sealants, battery off-gasing, etc. can cause a build-up of contaminants over time from lack of ventilation.

A diffusion-type system has great advantages in cold or wet environments. There is no danger of pumping water back to a central analyzer or the possibility of diluting the ammonia sample, as would be typical of a sample draw system installed in a wet environment. Ice formation in the sample draw tubing can block the return lines and totally disable the system.

Electrochemical sensors monitor ammonia refrigeration coils without false alarms down to the 15-20 ppm trip level. This "low level" monitoring is essential to the safety of personnel and product. Mannings Systems AirScan™ iR infrared sensor is used for halocarbon refrigerant sensing without false trips.

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 housed in environmentally protected enclosures to insure stable performance in freezers.

Related products and technology

The Manning Primary Safety System (MPSS) is a total, turnkey solution for the detection of toxic gas leaks showing gas safety status of an entire industrial facility at a single glance. It provides a "hardened" gas safety equipment system utilizing dedicated MPSS electrochemical and infrared sensors connected in realtime to GM-10, GM-4 or GM-1 dedicated central gas alarm monitors – all protected by a single uninterruptible power system. Multiple relays trigger key emergency safety control of equipment shutdown functions and allow Emergency Responders to easily assess an ammonia or other gas leak situation - even in the event of computer viruses, operating system crashes or human error.

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.