Hummingbird Electronics' Cab Pressure Monitor provides real-time feedback to operators, letting them know when positive pressure in the cab is low. Low pressure in the cab can result in dust and other harmful materials entering the cab. The Cab Pressure Monitor has been engineered for simple installation and operation.
The Cab Pressure Monitor measures pressure in the cab and compares it with atmospheric pressure. When the pressure in the cab drops to a level that is not high enough to prevent dust and other materials entering the cab, a green light on the unit turns red. A normally low output goes high for 2 seconds allowing an alert to be sent via a vehicle tracking system. High pressure events are also monitored.
Using an internal rotary switch (or remotely via the optional serial interface), the Cab Pressure Monitor can be configured to alarm at low pressures between 10Pa and 90Pa (1mm to 9mm H20). Based on customer feedback, the cab pressure alarm is supplied pre-set to 50Pa (5mm H20) low pressure and 300Pa high pressure.
A precision sensor allows pressure to measured to a resolution of 0.1mm H20. Measured pressure is temperature compensated to allow operation over a wide range of temperatures. An extremely high sensor burst pressure of 5000Pa means that door slams will not affect the sensor.
• Multi voltage 12/24V
• Optional remote output to drive buzzer
• Optional RS232 for remote monitoring
• Red/Green LED indicates fail/pass
• Comes in a kit with everything you need for a quick installation
• Installer settable air-pressure threshold