Wireless Sensor Checks Pressure of Marine A/C and Refrigeration

 

The CirrusSense TDWLB is reportedly the first pressure transducer in the world to use wireless Bluetooth technology and a patent pending design to connect pressure sensors to tablets and smartphones through the use of a free iOS app. The new CirrusSense sensor, certified as Bluetooth Smart, is suited for remote reading of refrigerant pressure/temperature in marine and RV applications. Its mobile app ("T-Direct TDWLB" on Apple iTunes) lets the user name each sensor, then program setpoints/alarms for multiple sensors, monitor readings, and graph activity over time – all from an Apple iPhone, iPad or computer. The CirrusSense uses patent-pending circuitry to provide a 12- to 18-month battery life and redundant sensing. The CirrusSense is available in two different compensated accuracies of 1 percent and 0.25 percent, with an external temperature sensing probe as an option for superheat measurement. 

 

"Boat owners and marine service techs have told us this will save time and money by preventing equipment damage, fish/food spoilage, unneeded service calls, downtime and premature refills," said Rob Matthes, President of Transducers Direct. "The pressure of any fluid can be monitored from vacuum to 10,000 psi. Boat owners or marina operators can read refrigerant pressures remotely, any time, without a service tech and the clumsy manifold gauges. The sensor also ends refrigerant leaks and blowback from manifold gauges, so it's EPA friendly. There's no gauge recalibration or adjustment. There has never been anything like this, and we'll be announcing expanded capabilities for this platform in coming months."

 

The U.S.-made CirrusSense TDWLB is all digital, eliminating mechanical components, wear parts, analog circuitry and setpoint drift. It is easily programmed and monitored through its app.

 

The sensor is EMI/RFI protected and sealed to IP-65 rating. Standard overpressure rating is 2X, with 4X optional. Burst pressure is 5X or 20,000 psi, whichever is less. The TDWLB is available with a variety of industry standard pressure-port connections. Replacement battery packs are available from Transducers Direct.