The Henry G. Dietz Co. is introducing a new ventilation monitor, the Dietz Model 190-PDI.. The monitor has a depth of 3.25-in. and can be concealed in a wall. The exposed 10- 10-in. panel is polished stainless steel and is flush with the wall surface. It is provided with a digital display that reads pressure of vacuum with a resolution of 0.001-in. W.C. when supplied with a range of 0-0.5-in. W.C. It features repeatability, low hystersis, accurate operation over a broad temperature range, and insensitivity to vibration and increasing common mode line pressure.
The front panel has a green LED that is activated when the pressure/vacuum is above the set point. When pressure/vacuum drops below the set point a red LED and an alarm are activated. The alarm can be silenced by pressing a switch on the front panel. When the pressure/vacuum is again increased above the set point, the alarm is reset to indicate a loss of the pressure vacuum.
The Henry Dietz Co., Inc.
Long Island City, NY