(Please note that the DG-500 Pressure Gauge has been discontinued as of November 1, 2017.  We will continue to recalibrate the DG-500.  We expect to continue to repair the DG-500 for at least 5 years. )

The DG-500 is a high resolution differential pressure gauge with simultaneous display of two independent measurement channels. The DG-500 can be used along with a computer and specialized software to record and graphically display pressure measurements from both channels, making it ideal for diagnosing pressure problems in buildings.

DG-500 Features

• Simultaneous display of 2 independent differential pressure channels. Bi-directional, precision pressure measurement up to 1,250 Pa (5″ w.c.)
• The DG-500 can display pressure readings in both Pascals and inches w.c.
• Auto-zeroing of both channels eliminates sensitivity to orientation and temperature, making it perfect for hand-held operation
• Four separate time-averaging modes (1, 5, 10 second & long-term) allow you to accurately measure fluctuating pressures
• Programmed to display velocity measurements using a Pitot tube (velocity units can be displayed in both feet per minute and meters per second)
• A HOLD button temporarily freezes the most recent display readings
• The DG-500 can be used along with a computer and specialized TEC data logging software (TECLOG) to record and graphically display pressure measurements from both channels.

(The DG-700 Pressure and Flow Gauge has been discontinued as of November 1, 2017.  We will continue to recalibrate the DG-700.  We expect to continue to repair the DG-700 for at least 5 years.  The DG-1000 Pressure and Flow Gauge is the replacement.)

The DG-700 Pressure and Flow Gauge is a multi-functional differential pressure gauge with 2 independent pressure sensors. In addition to providing high-resolution pressure measurements, the DG-700 is programmed to operate with other Energy Conservatory test devices to provide air flow measurements during building performance test procedures. The DG-700’s simultaneous display of two pressure channels and air flow measurement features make it ideally suited for a wide range of building performance applications including airtightness testing of buildings and duct systems, air handler flow measurements, building depressurization and combustion safety testing.

DG-700 Features

• Simultaneous display of 2 independent differential pressure channels
• Bi-directional, precision pressure measurement up to 1,250 Pa (5″ w.c.)
• The DG-700 can display pressure readings in both Pascals and inches w.c.
• Auto-zeroing of both channels eliminates sensitivity to orientation and temperature, making it perfect for hand-held operation
• Four separate time-averaging modes (1, 5, 10 second & long-term) allow you to accurately measure fluctuating pressures
• Programmed to display air flow readings for Minneapolis Blower Door and Duct Blaster systems, TrueFlow Air Handler Flow Meter and Exhaust Fan Flow Meter (air flow units can be displayed in cubic feet per minute, cubic meters per hour and litres per second)
• “Baseline” feature allows the user to measure and record a baseline pressure reading, and then display the baseline adjusted reading
• Specialized @50 and @25 test modes make it simple to conduct one-point airtightness tests of buildings and duct systems
• The Cruise Control feature allows you to control a Blower Door fan to maintain a constant 75, 50, 25 or 0 Pa building pressure without connection to a computer
• The DG-700 includes both a USB and RS-232 port that can be used along with a computer and specialized TEC software to conduct fully automated Blower Door tests (TECTITE software), and for data logging of pressure measurements from both channels (TECLOG software)
• Programmed to display velocity measurements using a Pitot tube (velocity units can be displayed in both feet per minute and meters per second).

(Please note that the DG-700 Pressure and Flow Gauge has been discontinued as of November 1, 2017.  All systems now come with a DG-1000 Pressure and Flow Gauge.)

Small houses or houses built to the more stringent energy savings standards have very small amount of leakage through the building envelope. A Minneapolis Duct Blaster® fan can be just the right size when regularly testing these energy efficient homes.

Another application for a Mini-Fan Blower Door System is individual apartment testing for multi-family buildings or when testing to LEED.

This complete kit includes the Duct Blaster fan and controller and the DG-700 Pressure and Flow Gauge. The lightweight Duct Blaster fan weighs just 7 pounds, but delivers enough air flow to test small homes or homes trying to achieve the highest airtightness testing standards. Provides quick and accurate airtightness measurements from 10 – 1,500 CFM. Compatible for both pressurization and depressurization testing. Cruise Control feature will automatically control the speed of the Duct Blaster fan during testing.

Components

• DG-700 Pressure and Flow Gauge and mounting board
• Duct Blaster fan and fan speed controller
• Door panel for the Duct Blaster fan
• Flow rings 1, 2 and 3 (Ring 4 is optional)
• Standard blower door aluminum frame with case
• Duct Blaster carrying case
• Three lengths of tubing

(Please note that the DG-700 Pressure and Flow Gauge has been discontinued as of November 1, 2017.  We will continue to recalibrate the DG-700.  We expect to continue to repair the DG-700 for at least 5 years.  All systems now come with a DG-1000 Pressure and Flow Gauge.)

Model 3 110V System (with DG-700) Includes

• Model 3 Fan (300 CFM to 6,300 CFM)
• DG-7000 Pressure and Flow Gauge
• Aluminum frame and nylon panel designed to fit an 8 foot door
• Fan Control Cable
• USB communication cable

The Minneapolis Blower Door has long been recognized as the best designed and supported building airtightness testing system in the world. Combined with specialized accessories and testing procedures developed by The Energy Conservatory, the Minneapolis Blower Door is the system of choice for utility DSM programs, energy raters, HVAC contractors and weatherization professionals.  Complete with everything you need for fully automated Blower Door testing. Built-in Cruise Control allows you to automatically control the Blower Door fan to maintain a constant 75 Pa, 50 Pa, 25 Pa or 0 Pa building pressure without having the gauge connected to a computer. Our lightweight, rugged, injection molded fan housing has a 5 year “no questions asked” warranty. Precise, stable flow measurements without the need for gauge dampening. The Model 3 Fan provides quick and accurate flow measurements from 300 to 6,300 CFM (includes Flow Rings A and B). Optional Flow Rings C, D and E will measure down to 11 CFM. Variable fan speed control (solid state – cruise control compatible). Both 110V/60 Hz and 220V/50 Hz models. This Model 3 Minneapolis Blower Door system includes a single fan, the DG-700 pressure and flow gauge with Cruise Control, and the adjustable aluminum frame and nylon panel. Multi-fan Minneapolis Blower Door systems are also available (both 2 fan and 3 fan systems). Mini-fan Minneapolis Blower Door Systems that use the Duct Blaster® Fan are also available.

Lightweight, Durable Door Frame and Panel

The innovative design of our adjustable aluminum frame and durable nylon panel is the result of years of refinements based on the experience of thousands of users. There is no easier way to seal a Blower Door fan into a door opening.  Snap-together aluminum frame comes in a compact carrying case and sets up in seconds. Precision engineered cam lever mechanism securely clamps the nylon panel into the door opening. Adjusts to fit the largest and smallest residential door openings (custom sizes available). A built-in window allows you to monitor outside activity. Panels are also available with a hole sized for the Duct Blaster Fan as well as two and three Blower Door fan configurations.

Blower Door Accessory Case

Our padded accessory case comes with every Blower Door system and has loads of room for your gauges, manuals, tubing, speed controller and nylon panel. It even has a padded laptop computer pocket and file compartments for organizing literature, forms and other documents.

(Please note that the DG-700 Pressure and Flow Gauge has been discontinued as of November 1, 2017.  All systems now come with a DG-1000 Pressure and Flow Gauge.)

Three-fan kit includes

• Three Model 3 (110V) fans with Variable Speed Controllers and Flow Rings A and B
• Three DG-700 Pressure and Flow Gauges with mounting boards
• Adjustable Aluminum Frame with three cross-bars and carrying case (max height 96″, max width 48″)
• One Nylon Panel for door opening (one commercial triple hole panel)
• Two Accessory Cases to hold gauges, manual, tubing and other items
• TECTITE Express and TECLOG3 Software

The Minneapolis Blower Door System is available in multi-fan systems when testing commercial buildings in accordance with the Army Corps Standard, NEBB Standard or other protocols.

(Please note that the DG-700 Pressure and Flow Gauge has been discontinued as of November 1, 2017.  We will continue to recalibrate the DG-700.  We expect to continue to repair the DG-700 for at least 5 years.  All systems now come with a DG-1000 Pressure and Flow Gauge.)

System Includes

• Series B Duct Blaster® Fan
• DG-700 Pressure and Flow Gauge (10 – 1,500 CFM)
• Duct Blaster fan speed controller
• Three flow rings (optional Ring 4)
• Twelve feet of 10″ diameter flex duct
• Padded nylon carrying case
• Static pressure probe
• Sample roll of Premium DuctMask Temporary Register Sealing Tape
• TECBLAST test analysis software

The development of the Minneapolis Duct Blaster has revolutionized performance testing of forced air distribution systems for builders, HVAC contractors, and in a variety of utility programs.

The Duct Blaster is also used for code compliance for total duct leakage and duct leakage to the outside as in IECC 2009 and 2012.

The Minneapolis Duct Blaster is a calibrated air flow measurement system designed to test and document the airtightness of forced air duct systems in both houses and light commercial buildings. The Duct Blaster fan is connected directly to the duct system in a house, typically at a central return, or at the air handler cabinet. With the remaining registers and grilles temporarily taped off, duct airtightness is measured by either pressurizing or depressurizing the duct system and precisely measuring the fan flow and duct pressure. Duct airtightness measurements are used to diagnose and demonstrate leakage problems, estimate efficiency losses from duct leakage, and certify compliance with duct leakage standards such as California’s Title 24 Building Energy Efficiency Standards.

The lightweight Duct Blaster fan weighs just 7 pounds, but delivers enough air flow (an amazing 1,500 CFM) to test the leakiest duct systems. Provices quick and accurate airtightness measurements from 10 – 1,500 CFM. Compatible for both pressurization and depressurization testing. The Duct Blaster can be easily used in new construction applications where a Blower Door can’t be used (e.g. before sheet rock is installed).

The WiFi Link attaches to DG-700 and DG-500 gauges and creates a wireless network that can be picked up by any computer or mobile device with WiFi capability. Using our free WiFi Link compatible software, you can monitor and control the DG-700 gauge from anywhere in the house.

Our WiFi Link will work with the latest versions of TECTITE and TECLOG for PCs, TEC Gauge utility app for Apple and Android mobile devices and TEC Auto Test mobile app for iOS devices.

TECTITE and TECLOG users will now be free to put their laptop anywhere in the building while conducting a Blower Door test. The TEC Gauge app lets you remotely cruise your Blower Door or Duct Blaster® fan, or monitor combustion appliance zone pressures while walking around the house turning exhaust fans on and off.

The best part is that the TEC WiFi Link is compatible with all gauges with serial numbers 349 and higher. No need to buy a new gauge to add this exciting new technology to your testing and air sealing work.