Duct Static Pressure Sensor Installation

This is an indicator that the static pressure set point is too high 2.

Duct static pressure sensor installation.

Screw mount sensor directly to duct using self tapping screws provided. In ventilation systems static pressure is the pressure exerted by the air inside a building relative to the outside air pressure when exhaust fans are turned on. You might consider installing a sensor in both duct branches about 2 3 of the physical distance down the duct and then using the software to select the sensor that required the highest fan speed to meet set point. As duct static pressure increases the supply fan speed reduces.

The h port senses total pressure and the l port senses static pressure the difference between these signals is differential or velocity pressure. These sensor are normally used in conjunction with the vav 1000 2000 and 3000 series vav terminal controllers for individual zone control in hvac systems. All electric ddc duct static pressure control the controller uses a static pressure sensor located in the supply duct at the end of the longest run to modulate the supply fan to control duct static pressure. It senses static pressure through radially drilled holes near the tip and can be used in air flow velocities up to 12 000 fpm.

Static pressure sensor installation guide. This model is not position sensitive and may be installed in any convenient orientation. A 301 or a 302 static pressure tip is used. Drill hole in duct just large enough to accomodate built in pickup tube.

The angled tips shown have 4 insertion depth. Move slide switch to select desired pressure range. The duct static pressure probe assembly consists of a static pres sure probe a six inch piece of silicon rubber tubing a twelve inch piece of silicon rubber tubing two self drilling sheet metal screws and a pressure spike reducer. The mamac systems model pr276 duct static pressure transmitter incorporates sophisticated integrated circuits and a new micro machined glass on silicon gl si capacitance sensor to not only provide a high level fully conditioned and temperature compensated output but also to offer up to three 3 field selectable pressure ranges in one unit.

On a call for full pressure the fan runs at full speed. With over 1 8 million parts in stock kele makes it easy to avoid project delays. Each has four radially drilled 040 sensing holes. The static pressure sensor sps 2 is a differential pressure sensor designed to monitor the difference in pressure between the inside and outside of a building.

Figure 4 shows the system coming on around 6 00 am on tuesday april 5. Time too high duct static pressure set point. Positioning the duct static pressure probe assembly to get the best results requires a little planning. Kele carries duct static pressure sensors and pressure accessories to fit your specifications.