Installation & User Guide
Notes for troubleshooting:
If the green LED does not light up, first ensure that the power button is depressed. If the button is depressed,
try cycling power by pressing the power button (to turn the power off) and pressing the button again (turning the
system back on). If the unit still does not show the green LED, please contact Qualitrol for help
If the amber LED does not light up, wait 3 more min to ensure the system is fully booted and has had a chance
to communicate with the cellular tower. If the LED still does not illuminate, try to move the QGateway to a
different location to improve cellular strength (review cellular tower location(s) identified in the site survey
section).
If a red LED illuminates, this could indicate low battery. Please allow the unit 4-6 hours in sunlight to charge to
an operational level and check again. If the red LED remains illuminated, please contact Qualitrol for help. The
unit can be slowly charged under incandescent light.
Installing DGA-LT1 Monitor
NOTE:
If the desired valve is not 1
” NPT, then the appropriate hardware adapter must be installed. DGA LT1
orders
can be configured with a 2” x 1” reducer bushing as an optional accessory. See Figure 18. Note that
the pipe sealant is not shown in Figure 18 and is required for sealing.
Figure 18: Drain Valve showing 2" to 1" adapter
The DGA-LT1 requires positive oil pressure at the drain valve for installation. To prevent atmospheric air from
entering the transformer, the DGA-LT1 should not be installed under vacuum conditions.
DGA-LT1 Installation check list
1. Ensure the transformer drain valve is closed.
2. Confirm headspace pressure gauge is zero or positive.
3. Position a container and an oil absorbent pad as needed under the valve to collect oil.
