Aircraft Spruce Australia
Melbourne, VIC Australia
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Fuel Warning System Non TSO
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Overview
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Float-action sensor in tank activates panel warning light when fuel supply is low. All-PBT unit, impervious to aviation fuel. Use AN 867-4 flange for mounting. Note: Bulb not included. See "Accessories" to order bulb. DISCOUNTS: 10% ON 6, 15% ON 12, 20% ON 50 |
Reviews
First, this is a difficult to find item so I am grateful to have found it. I like that you can orient the sensor to either open or close its internal switch based on the fuel level. The wires are of a good quality, their gauge is thinner than Im used to working with, and that may be unique to my experience. One note: the description lists this sensor as working for 120 volts, it should say it works for UP TO 120 volts, it also works on 12V, 24V and anything up to 120 Volts.
Installed one of these on an ultralight and I love it. Building another plane and will install one of these as a standalone backup to the main fuel gauge. Very good piece of equipment. Good value.
Sensor failed after only 25 hours. This caused an engine out. Have bought a second one as it fits my application.
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Fuel Warning Sensor
Q&A
Please note, Aircraft Spruce Australia's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Australia assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
Per the supplier: "No, the M7700 (part # 6905-400) is a side mounted level switch. The vertical mount comparable to this is our M7000." The M7000 is currently special order only. Please contact sales for pricing, lead time, and ordering information.
Per the supplier: Yes, you should use a thread seal compound on the M7700, but we cannot recommend one. You will need to select one that will work in your application and be compatible with the fluid and the M7700.
Per Vendor, Yes it will work with auto fuel.
Yes, the fuel warning system can be installed in an ultralight aircraft. A detailed manual is included for installation procedures.
The threaded section is 1/2" NPT.
The weight of the sensor is .09 lbs. The dimensions of this unit is 4.3" in length and 1.13" width of the nut part attaching end. This is the widest/tallest part of the unit. This unit has a 1/2" NPT threads.
Yes, 6905-400 can be installed from the outside of the tank. You will just need to make sure the float can fit through the hole.
No. This unit only does not have an FAA approval.
If the arrow is up it means it is normally closed. You can turn it upside down and the switch becomes normally open, and it is 120v.
