Newer DG-700 and DG-500 gauges contain both a USB (located on the left in the picture) and a DB-9 Serial Communication Port (located in the center of the picture), either of which can be used to create a 2-way communication link between the gauge and a computer. This communication link can be used (along with TEC software) to conduct automated Blower Door tests and to data log both pressure channels.
- Fully automated Blower Door testing requires a DG-700 gauge, TECTITE software, a Blower Door fan speed controller with a communication jack (standard equipment since September 2004), a fan control cable, and a communication cable (either USB or 9 pin serial) to connect the DG-700 to a user supplied laptop computer. (If using a TEC WiFi Link, no communication cable is necessary.)
- Data logging of pressure measurements requires the TECLOG software, and a communication cable (either USB or 9 pin serial) to connect the DG-700 or DG-500 to a user supplied laptop computer.
In order for the Digital Gauge to communicate with your computer using a USB port, drivers must be installed. You will know if the drivers have not been installed when you plug in the Digital Gauge into your computer, run TECTITE and you see a message that says that the Gauge is not communcating with TECTITE. The driver file needs to be installed anytime you change computers.