TEC DG-700 - DG-700 Servicing and Maintenance; Gauge Calibration and Servicing; Low Battery and Battery Replacement; Troubleshooting and Resetting the DG-700

Chapter 1 Feature Summary
1.4 Input/Output Ports on the DG-700

1.4.a USB and Serial Communication Ports:
The DG-700 contains both a USB and a DB-9 serial communication port, 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.
- Automated Blower Door testing requires the TECTITE, TECTITE Express or TECLOG2 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.
- Data logging of pressure measurements requires the TECLOG2 software (available from
www.energyconservatory.com), and a communication cable (either USB or 9 pin serial) to connect the DG-700
to a user supplied laptop computer.

1.4.b Fan Control Output Jack:
The fan control output jack provides a speed control signal which is used to control a Blower Door or Duct Blaster
fan during an automated Blower Door test, or with the Cruise Control feature. A fan control cable is used to connect
the fan control output jack to the communication jack on the side of the fan speed controller.

1.4.c AC Power Input Jack:
The AC power input jack can be used with an optional AC power supply to provide a long term power source for the
gauge (to be used when data logging). The gauge is normally powered by 6 AA batteries located in the rear battery
compartment. When the AC power supply is plugged in, the power supply bypasses the batteries in the battery
compartment. See Chapter 7 for AC power supply specifications. Note: Always turn off the gauge before plugging
in the AC power supply.
AC Power Input Jack
Serial
Communication
Port
Fan Control
Output Jack
USB
Communication
Port
Communication Jacks
(Blower Door and
Duct Blaster Speed
Controllers)
4
Operating Instructions
for the DG700