This model is not position sensitive and may be installed in any convenient orientation.
Duct static pressure sensor installation.
Drill hole in duct just large enough to accomodate built in pickup tube.
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.
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.
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.
All except model a 303 mount in 3 8 hole in duct.
This is an indicator that the static pressure set point is too high 2.
There are eight zones that this air handler serves and all of the dampers are less than 50 open during this day.
Each has four radially drilled 040 sensing holes.
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.
Kele carries duct static pressure sensors and pressure accessories to fit your specifications.
The h port senses total pressure and the l port senses static pressure the difference between these signals is differential or velocity pressure.
Positioning the duct static pressure probe assembly to get the best results requires a little planning.
Static pressure sensor installation guide.
With over 1 8 million parts in stock kele makes it easy to avoid project delays.
A 301 or a 302 static pressure tip is used.
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.
It senses static pressure through radially drilled holes near the tip and can be used in air flow velocities up to 12 000 fpm.
Move slide switch to select desired pressure range.
On a call for full pressure the fan runs at full speed.
As duct static pressure increases the supply fan speed reduces.
Vav damper positions vs.
The angled tips shown have 4 insertion depth.
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.
Time too high duct static pressure set point.
