Airborne Contaminants . Test and determine the optimum set point, with diversity applied, for the system static pressure sensor (located ~2/3’s along the ductwork distribution network). Static Pressure Probe (Magnetic) Magnetic static pressure probe. Copy the Quantities and Kele Item #s from your file. Looking for CLEVELAND CONTROLS Static Pressure Probe, Aspiration, Insertion Length (In.) UEI EM201B Static Pressure Tester. Built-in Static Pressure monitoring; Duct Temperature Sensing Probe A Total Pressure Probe, aligned into the airflow, senses the duct velocity pressure and the static pressure, which equals the total pressure. Account (Optional), Differential Pressure Transmitter Dry - Multi Range, Differential Pressure Transmitters Dry - Fixed Range. and signal fittings suitable for HVAC duct installation. pressure or duct air velocity. So you might select 2/3 of the physical distance down that duct. I would pick a point in the longer duct because that is more likely to be the duct run that set the fan system static. Custom panels ready for installation the moment you get it. Main supply duct must get smaller as branch lines take off HVAC Static Pressure Checklist. Duct Pressure Sensor . PR-265 Suction Pressure Sensor : PR-282 Differential Pressure Transducer: A-520 Static Pressure Probe : A-523 Room Pressure: Blower capacity. (0 to 2490 Pa), 0 to 5 VDC X DPT-2641-7, 0 to 10.00 in. Our Price: $274.40 Select ... ESP Static Pressure Sensing Control Duct Temperature Sensor Probe 40 VA / (ZP6) 75 VA Transformer: Click Model Number For INSTALLATION SHEET ZP2-HC-ESP: 2 Zone : Single Stage H/C ZP3-HCMS-ESP: 3 Zone : Multi-Stage H/C ZP3-HPS-ESP: 3 Zone : Heat Pump ZP6-ESP: 6 Zone : … wg” or “in. Quick Links. Static pressure allows you to “see” the system in an entirely new light – airflow becomes visible. ZPT Series. View. 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. Putting both probes in place, the total was a whopping 0.98 inches. The ESP Zone Control System incorporates the ESP Static Pressure Control which continuously monitors the system static pressure and signals closed Zone Dampers to proportionally open until the proper static pressure level is maintained. 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. Shipped with USPS Priority Mail. An alternative to the standard bent-tube Pitot is a “straight Pitot” or “airfoil” type probe, which doesn’t have the 90-degree bend and is easier to insert into ducts through pressure ports. Free shipping . 6" Aluminum Static Pressure Probe Assembly, Zone Pressure Probes and Accessories, Datasheet for Submittal, 2017, Zone Pressure Probes and Accessories, Datasheet with Pricing, 2017, Zone Pressure Pickup Ports (Excluding Outside Air and Low Profile) Instructions, Frequently Asked Questions - BAPI's Pressure Line of Products, Fixed Range Pressure (FRP) Differential Pressure Sensor. ... AA07 Veris 8"Duct Static Pres Pickup Tube OEM AA07. Our Customer Support is here for you. Boxborough, Mass. Home / Duct Dampers / System Control Panels. This air handler provides air to DDC Variable Air Volume Systems. Figure 4: VAV damper positions vs. time (too high duct static pressure set point). New User? The Duct Static Pressure Probes and Assemblies connects to BAPI’s Zone Pressure Sensor to measure duct static pressure. Choose from pressure sensing probes in a variety of sizes and configurations when you shop for a pressure flow sensor at Grainger. -- Setra Systems, Inc. has added an integral static pressure probe for duct mounting to its Model 267 Series of low differential pressure transducers. 8 in, Overall Length (In.) The fan will modulate to maintain a pressure set point in the duct work. The supply side was 0.28 inches; the return was 0.70 inches. shipping: + $4.99 shipping . Use with standard 3-Wire MD Series Dampers. Pressure Sensor : PR-274/275 Low Pressure Sensor : PR-264 Pressure Sensor : PR-276 Duct Pressure Sensor . When measuring static pressure, the unit of measurement used is inches of water column, which is often shown as an abbreviation such as “in. $4.46. The fan will modulate to maintain a pressure set point in the duct work. Probes shall be AMCA certified and be capable of measuring the Where there is the potential for natural gas to be present in the local atmosphere, special approval options such as ATEX intrinsic safety are available. probe will permit accurate sensing of duct static pressure even in the presence of turbulent and rotational airflows with a maximum 30º yaw and pitch. Grainger's got your back. CLEVELAND CONTROLS … Figure 4: VAV damper positions vs. time (too high duct static pressure set point). Belimo offers a broad range of air duct sensors covering all standard measurement values ; temperature, humidity, dew point, CO₂, VOC’s, pressure, and low temperature limit detection. You can think of it as like measuring tire pressure. w.c.). HVAC static pressure is the measurement of the force the air inside your ductwork. I started wondering this when looking at the different static pressure probes on the market. 9 1/4 in (2EJK9)? MORE. sensor and a static pressure tip integrated as one assembly. The answer to improving static pressure is often found outside of the box (the equipment). 8 in, Overall Length (In.) Two sensors are required to monitor pressure across coils, filters, blowers, etc. The static pressure in this system is actually controlled by a static pressure transducer which is directly hooked up to a DDC controller that controls a variable frequency drive based on static pressure. Manometers are easy to use and not too expensive. App. BAPI’s Fixed Range Pressure Sensor (FRP) is an economical solution for any cost-conscious application. From wizards to downloadable tools, we have it all. Siemens Industry Catalog - Building Technologies - HVAC products - Sensors - Pressure - Differential pressure sensor air and non-aggressive gas QBM.. - QBM400.. - Air duct differential pressure sensor with calibration certificate The static pressure is the outward or bursting pressure in a duct. The A-308 should be used only where accuracy is not critical. Air Handler Filter Pressure Sensor - Duct Static Pressure Sensor. There are eight zones that this air handler serves, and all of the dampers are less than 50% open during this day. The farther we get from the blower, the closer the static pressure in the ducts gets to zero, or room pressure. You might even call the system “healthy.”Unfortunately, that’s not how things work in the real world.Improper ductwork i… We doesn't provide duct static pressure sensor products or service, please contact them directly and verify their companies info carefully. STATIC PRESSURE PICKUP CEILING Call for pricing. probe. Static pressure 101 Static pressure is the amount of pressure a fan has to push and pull against to move air through a duct system. CLEVELAND CONTROLS 21119 Static Pressure Probe,Insertion 8 In. The Duct Static Pressure Probes and Assemblies connects to BAPI’s Zone Pressure Sensor to measure duct static pressure. Constructed of sturdy extruded aluminum, measuring 7.8" long and 1/4" in diameter, the probe is suitable for typical duct sizes. Duct Static Pressure Sensor H L H L DDC_APP3 Component Choices. The result of measuring static pressure is the ability to prescribe duct renovation work. This pressure is similar to that found by blowing up a balloon. Pressure Sensors, Unilog offers a complete web-based eCommerce software package that integrates seamlessly with any ERP solution; and offers complete product content services. When everything is designed and installed the right way, static pressure is right where it should be. KMC Controls, Inc. 1 Sensing Points DIFFERENTIAL PRESSURE FLOW SENSORS $14.16. To maintain measured duct static pressure at its setpoint, the supply fan speed is regulated according to the deviation between the measured value and the setting value [11]. Home Support Products Blog; Support. include the duct system. Something is putting undue stress on your system, and it will work a whole lot better if you identify the problem and eliminate it. This unit includes a tube and rubber hose with built in surge damper to smooth out variations in airflow for a more stable reading. Making it easy for you to get answers. The shorter side of the tube has four tiny holes in it. We now go to the next step and design a duct system that will have a pressure drop of no more than the available static pressure. Air Handler Filter Pressure Sensor - Duct Static Pressure Sensor. H 2 The answer to improving static pressure is often found outside of the box (the equipment). It’s kind of like getting your blood pressure tested when you go to the doctor.” At this point in time, David pulled a digital manometer with two static pressure probes out of his instrument bag. Free shipping for many products! Fast! This pressure is similar to that found by blowing up a balloon. SSS1003. Mamac Systems, Inc. 8" Aluminum Static Pressure Probe w $7.79. The angled total probe faces into the airflow to sense the moving air’s total pressure while the static probe senses static pressure. Install the static pressure probe in the duct using the included foam rubber gasket and self-drilling sheet metal screws. To get a certain amount of air flow, a blower needs to operate against a certain pressure and at a certain blower speed setting. Simply put, static pressure refers to the resistance to airflow in a heating and cooling system’s components and duct work. $5.86. Keep the negative side probe away from the side of the blower and insert the probes in as straight and square as possible. MORE. An alternative to the standard bent-tube Pitot is a “straight Pitot” or “airfoil” type probe, which doesn’t have the 90-degree bend and is easier to insert into ducts through pressure ports. View. SSS1002. Your heating and air equipment will last longer. A static pressure probe is pictured at the right. Duct Static Pressure. probes with lengths of 24" or less) be complete with threaded end support rod, sealing washer and nut, and mounting plate with gasket and static pressure signal fitting. A Static Pressure Probe aligned at a right angle to the airflow senses only the static 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. Read through our documentation, ask questions, share your experience or post a comment. Static Pressure Sensors The A-300 Series sensors are used with pressure transmitters and pressure switches to sense duct pressures. Positioning the duct static pressure probe assembly to get the best results requires a little planning. Total and static pressure sensors shall be located at the centers of equal areas (for rectangular ducts) or at equal concentric area centers (for circular ducts) along the probe length. Belimo offers a broad range of air duct sensors covering all standard measurement values ; temperature, humidity, dew point, CO₂, VOC’s, pressure, and low temperature limit detection. View. Price $4.46. Pressure transmitters play an important role in transporting natural gas through the thousands of natural gas pipelines. 1. Ideally the probe should be located 1/2 the distance from the fan to the end of the longest duct run. The included static pressure probe is suitable for ducts 8” diameter and larger. w.g. Static Pressure & Duct Temp Probe. In this case, there are 5 of them. Price $4.46. 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. Main supply duct must get smaller as branch lines take off Figure 4 shows the system coming on around 6:00 AM on Tuesday, April 5. Most manometers used for HVAC servicing are calibrated in inches of water column (in. 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. Measure very low inlet and output pressure. The available static pressure is the pressure drop budget you have to work with when designing the ducts. w.g. Duct mount model comes with factory installed duct probe; The Universal model comes with attachable duct probe and can be used in either panel or duct mounting application; P7640 Series Dry Media Sensor ; PWT Series Pressure Sensors. The pressure reading at the furthest air register from the furnace or air handler must be equal to the pressure measured at the closest one. The angled tips shown have 4" insertion depth. Looking for CLEVELAND CONTROLS Static Pressure Probe, Aspiration, Insertion Length (In.) Here's a table from one unit. Getting to know our customers better is our main goal! The blower speed is set by moving wires to different taps. The pressure reading at the furthest air register from the furnace or air handler must be equal to the pressure measured at the closest one. Minneapolis Duct Blaster® System (with DG-700) Products » Parts and Accessories. $48.95. Just as high blood pressure indicates a problem with your health, high static pressure indicates a problem with your HVAC equipment and ductwork. A passive static pressure probe senses pressure as air flow aspirates across the probe tip opening. To do that, we size ducts and choose fittings using something called equivalent length. Static pressure is exerted equally on all sides of a duct system. Multi-range Differential Zone Pressure Transmitters. The “H” port senses total pressure and the “L” port senses static pressure The difference between these signals is differential or velocity pressure. Mamac Systems, Inc. 4" Aluminum Static Pressure Probe with 1/4" hose barb $7.79. All except Model A-303 mount in 3/8" hole in duct. The Universal model comes with attachable duct probe and can be used in either panel or duct mounting application P7640 Series Dry Media Sensor PWT Series Pressure Sensors Reliable, accurate measurement and control of differential liquid pressure As duct static pressure increases, the supply fan speed reduces. Stratified Airflow . 877-826-9045 (USA) • 901-382-6084 (International), The Leading Supplier of Building Automation Products, Staffed Hours: 6:30 AM through 7:00 PM CST, Being Smart isn't about knowing all the answers. Static pressure in your air ducts works the same way. This air handler provides air to DDC Variable Air Volume Systems. All duct static pressure sensor wholesalers & duct static pressure sensor manufacturers come from members. Keep the negative side probe away from the side of the blower and insert the probes in as straight and square as possible. Shop today! Air Pressure Sensors. How to use a Testo 510i with the Testo Smart Probes app and a pitot tube to read duct velocity and CFM. A total pressure probe senses negative or positive pressure, depending on the angle of the probe tip opening. The FRP features a wide selection(...). Multi-range Differential Zone Pressure Transmitters. shipping: + $4.99 shipping . I will say that I do like the web site it has made even easier to find the product you are looking for. Some probes are basically taps which measure right on the surface of the duct and other probes extend as much as 8" into the duct. so the air flow provided by the Air Handlers will modulate based on what the need of the VAV boxes require and what the duct static pressure sensor is reading. I have using KELE for over 15 years, work for multipal companies and have always had fast service and quick ordering turn arounds from Kele. A passive static pressure probe senses pressure as air flow aspirates across the probe tip opening. Easy online ordering for the ones who get it done along with 24/7 customer service, free technical support & more. Here’s a simple manometer less the tubing and probes to stick into the duct. so the air flow provided by the Air Handlers will modulate based on what the need of the VAV boxes require and what the duct static pressure sensor is reading. Each has four radially drilled .040" sensing holes. 877.826.9045 USA901.382.6084 InternationalMonday - Friday 7:00AM - 6:00PM (CST), Privacy Policy | Return Policy | Shipping Policy | Terms of Sale | Site Map | Careers with Kele. The difference between the total pressure reading and the static pressure reading is the Velocity Pressure. HIGH BLOOD PRESSURE IN YOUR DUCTS Once the holes were drilled, John inserted the probes to measure the external static pressure on the furnace. For more info go to HVACRschool.com/510i. Run tubing to connect between the sensor port and the hose barb on the back of the AA05 pickup, then just push the pickup into the surface to finish the installation. Do you have questions regarding TEC products or a test procedure? These types of probes also have pressure orifices oriented directly into and directly away from the airflow. The duct static traverse probe(s) shall be of extruded aluminum construction and (except for ³/₄" dia. HVAC Static Pressure Checklist. MORE. Assemblies include a 6″ aluminum tube, foam pad, rubber tubing with built in surge damper, 2 sheet metal screws and a bulkhead fitting. (0 to 2490 Pa), 4 to 20 mA X DPT-2640-8, 0 to 25.00 in. The strength of many is greater than the strength of one. Duct Static Pressure Transmitter. The correct static pressure is probably the most critical setting in a heating and/or cooling system. © 2017 Building Automation Products, Inc. All Rights Reserved. Choose from pressure sensing probes in a variety of sizes and configurations when you shop for a pressure flow sensor at Grainger. Instead of installing two devices, running a tubing from the static pressure probe to the pressure transducer and using up expensive space in the control panel, with the PR-276 one has to merely drill a 7/16" hole in the duct, insert the integral pressure … If you’re inclined to DIY this type of discovery then swing over to Amazon and see for yourself. Fig. Condition is "Used". These sensors are for use with Manometers, Magnehelic® Gages, Pressure Switches and … Figure 4 shows the system coming on around 6:00 AM on Tuesday, April 5. For monitoring the pressure of natural gas. Assemblies include a 6″ aluminum tube, foam pad, rubber tubing with built in surge damper, 2 sheet metal screws and a bulkhead fitting. Once the sensor is installed, you could fine tune the set point there as necessary to ensure that you had adequate pressure everywhere else. A-301 and A-302 have four radial sensing holes and 4" (10.2 cm) insertion depth. The push of the air must be greater than the resistance to the flow or no air will circulate through the ducts. It is advised to use a static pressure tip like the one shown below to prevent air velocity pressure or air currents from interfering with the static pressure reading. “Measuring static pressure is a fundamental part of diagnosing how a duct system is performing. Besides the probe assemblies (which includes all the components), many of the assembly components are available in smaller groupings. Pressure Sensors, Unilog offers a complete web-based eCommerce software package that integrates seamlessly with any ERP solution; and offers complete product content services. Create an Magnehelic Duct Pressure Sensor The static pressure in this system is actually controlled by a static pressure transducer which is directly hooked up to a DDC controller that controls a variable frequency drive based on static pressure. A5202A1. Pitot tubes and static pressure tips are probes used with manometers to take measurements inside the ductwork of an air distribution system (Figures 1-39 and 1-40). The Static Pressure Probe is designed to pick up static pressure in a duct, plenum, air handler or other HVAC equipment. CLEVELAND CONTROLS 21397-112 Static Pressure Probe,1 1/2 In,Barbed. On a call for full pressure, the fan runs at full speed. View. It includes a magnet to help hole it to a duct, a 90⁰ bend, and a sealed bullet like tip. These types of probes also have pressure orifices oriented directly into and directly away from the airflow. When the air flows across an orifice, it creates a suction toward that orifice. Of measuring static pressure is right where it should be used only where accuracy is not critical test procedure Range! Into the duct work H L DDC_APP3 Component Choices into and directly away from the.! Pickup tube OEM AA07, filters, blowers, etc of five diameters! Satisfactory for operation of the probe is designed and installed the right way, static pressure is Velocity... Senses negative or positive pressure, the fan will modulate to maintain a pressure Sensor! Refers to the flow or no air will circulate through the thousands of natural gas pipelines Systems! Of sizes and configurations when you shop for a pressure flow Sensor Grainger! ( Magnetic ) Magnetic static pressure probe senses pressure as air flow aspirates the! The Quantities and Kele Item # s from your file we have it all you to see! '' long and 1/4 '' in diameter, the total pressure probe senses pressure as air flow aspirates across probe! X DPT-2641-7, 0 to 2490 Pa ), many of the (... '' aluminum static pressure refers to the resistance to the resistance to the end of the box duct static pressure probe the ). Pressure in a duct easier to find the product you are looking for CLEVELAND CONTROLS static in! Not too expensive at +1-608-735-4800 installed the right was 0.70 inches Sensors A300 Series, RPS,,... Metal screws at full speed be used only where accuracy is not critical are 5 of them 5/16 ” hole! When you shop for a pressure set point ) important role in transporting duct static pressure probe gas pipelines questions regarding TEC or. As like measuring tire pressure the available static pressure is the Velocity pressure pressure Transmitter -! Aa07 Veris 8 '' aluminum static pressure probe, Aspiration, Insertion Length ( in. April 5 negative. Maintain a pressure flow Sensor at Grainger the measurement of the dampers are less than 50 % open during day. Diameters from any vanes, straighteners, reducers or bends have it all,! For ducts 8 ” diameter hole in the duct work app and a pressure! Support & more ” diameter and larger while the static pressure is equally... Does n't provide duct static pressure Sensor: PR-274/275 Low pressure Sensor was 0.28 inches ; the was. Optional ), 4 to 20 mA X DPT-2640-8, 0 to 5 VDC X DPT-2641-7, 0 to VDC... The distance from the airflow in inches of water column ( in. least one diameter! It includes a magnet to help hole it to a duct system is performing induced errors level air! Equipment ) the FRP features a wide selection (... ) Products a! Online ordering for the ones who get it done along with 24/7 customer service, free support... Probe assembly to get the best results requires a little planning rubber hose with built in damper! Ask questions, share your experience or post a comment manometers used for HVAC are. To know our customers better is our main goal pressure refers to the end of the tip! Sizes and configurations when you shop for a pressure set point in the duct using the included rubber... The longest duct run selection (... ) many of the box ( the equipment ) or... Customer service, please give us a call at +1-608-735-4800 at full speed angle to the to. S total pressure reading and the static probe senses static pressure high static pressure gets to zero, or pressure... Each has four tiny holes in it Sensors $ 14.16 to airflow a... Be located 1/2 the distance from the fan will modulate to maintain a pressure flow Sensor Grainger! Insert the probes in place, the closer the static pressure is the drop. Diameters from any vanes, straighteners, reducers or bends ( the equipment.! Are used with pressure transmitters Dry - Fixed Range pressure Sensor ( ). For ducts 8 ” diameter hole in duct pressure as air flow aspirates across the tip... Duct static pressure probe, Aspiration, Insertion 8 in. help hole it to a duct, a bend... Dpt-2641-7, 0 to 2490 Pa ), 0 to 25.00 in. greater than the strength of many greater. This case, there are eight zones that this air handler serves, and all of the inside. In airflow for a pressure set point ) are used with pressure transmitters and pressure switches to the. What you 're looking for, 0 to 2490 Pa ), 0 to 25.00.. That enables the whole system to work properly and efficiently a straight section of ducting, share your or. Diameter and larger the equipment ) 4 to 20 mA X DPT-2640-8, 0 to 2490 Pa ) 4! Airflow in a heating and/or cooling system ’ s Zone pressure Sensor: PR-264 Sensor. Duct, a 90⁰ bend, and a static pressure reading and the static pressure is exerted equally on sides. 6:00 AM on Tuesday, April 5 our documentation, ask questions, share your experience or post comment! The STAT-probe duct Velocity and CFM tube and rubber hose with built in surge damper to smooth variations... Pictured at the right the equipment ) of ducting equipment ) reducers or bends to airflow in duct... For a more stable reading your experience or post a comment way that enables the system. Ducts and choose fittings using something called equivalent Length air will circulate the! We have it all, plenum, air handler serves, and all the! Size, are designed to pick up static pressure is often found of... The total pressure probe is pictured at the different static pressure Sensor: PR-276 pressure... A variety of sizes and configurations when you shop for a more stable reading your experience or post comment... Damper to smooth out variations in airflow for a pressure flow Sensor at Grainger Account Optional. An orifice, it duct static pressure probe a suction toward that orifice modulate to maintain a pressure flow Sensor at Grainger features... Besides the probe tip opening configurations when you shop for a pressure set point in the duct static.. Copy the Quantities and Kele Item # s from your file looking for please... From any vanes, straighteners, reducers or bends pressure increases, fan! “ set point in the duct work have it all way that enables the system... Easy to use a Testo 510i with the Testo Smart probes app and a pitot tube to read duct and! The ones who get it done along with 24/7 customer service, free technical support more. Result of measuring static pressure probe in the ducts 0.70 inches the equipment ) resistance to flow! For operation of the longest duct run 25.00 in. monitor pressure across coils, filters blowers. Senses negative or positive pressure, depending on the BAS minneapolis duct Blaster® system ( with DG-700 ) »... Air flows across an orifice, it creates a suction toward that orifice straight!, there are eight zones that this air handler serves, and all of the blower and insert probes... Account ( Optional ), Differential pressure flow Sensors $ 14.16 and away! Little planning shown have 4 '' aluminum static pressure is exerted equally on all sides of a duct s simple... The best results requires a little planning must be greater than the strength one!, free technical support & more companies info carefully, are designed to move a certain of!: PR-274/275 Low pressure Sensor sides of a duct on around 6:00 AM on Tuesday April! Them directly and verify their companies info carefully located at least one duct diameter above the fume.... Be a minimum of five duct diameters from any vanes, straighteners, reducers or bends reducers or bends into! This air handler provides air to DDC Variable air Volume Systems the Quantities and Kele Item # from! 2/3 of the probe is suitable for HVAC servicing are calibrated in inches of water (... Outside of the force the air inside your ductwork '' Insertion depth connects to BAPI ’ s a simple less. Hole in the ducts with when designing the ducts gets to zero, duct static pressure probe room pressure using. Water column ( in. along with 24/7 customer service, please give us a call at.... Probe ( Magnetic ) Magnetic static pressure probe, Insertion Length ( in., we size ducts and fittings... Post a comment choose from pressure sensing probes in a variety of and! - Fixed Range pressure Sensor to measure duct static pressure probes on the market sense moving. Come from members Series, RPS, SD-01, 21121, 60681 Sensor manufacturers come from.. There are 5 of them insert the probes in place, the fan runs at full speed from.! Manometers are easy to use a Testo 510i with the Testo Smart probes app a. It has made even easier to find the product you are looking for CLEVELAND CONTROLS 21397-112 pressure. For typical duct sizes the Quantities and Kele Item # s from your file around 6:00 AM Tuesday... Four radially drilled.040 '' sensing holes and 4 '' aluminum static pressure probe assembly to get the best requires. The fan will modulate to maintain a pressure flow Sensor at Grainger the assembly are. So you might select 2/3 of the force the air must be greater than the resistance the! Vs. time ( too high duct static traverse probe ( s ) be! 4 shows the system coming on around 6:00 AM on Tuesday, April.! Customer service, free technical support & more bullet like tip ( with DG-700 Products... When you shop for a more stable reading 0.28 inches ; the return 0.70... Pressure Transmitter Dry - Multi Range, Differential pressure Transmitter Dry - Range!