REFLECTOR: GEMS sensor

[Dave Philipsen]

I've got a 12v GEMS sensor on my sump and it works just fine.  I believe that the nominal 12v system in aircraft is actually more like 13.8v just as it is in cars.  In fact, I think the alternator/vlt reg in my V is from a car.


-----Original Message-----
From: Alex Balic <velocity_pilot at verizon.net>
Sent: Thursday, June 25, 2009 1:08 PM
To: 'Velocity Aircraft Owners and Builders list' <reflector at tvbf.org>
Subject: Re: REFLECTOR: GEMS sensor

Hi Noel-

 

I had the exact same question when I got mine originally- called them, and
they said it will work up to I believe 19 volts or something like that- the
labeling is confusing for sure..

 

Alex

 

  _____  

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of gattenby at tulsaconnect.com
Sent: Thursday, June 25, 2009 1:00 PM
To: Velocity Aircraft Owners and Builders list
Subject: REFLECTOR: GEMS sensor

 

I ordered a "gems" sensor to use in the sump tank.

I ordered the 12v "wet" sink version.

The sent the 5v "dry" sink version.

The wet vs dry sink is a wiring issue - I'm not concerned.

The 12v vs 5v has made me ponder???

 

The specs on the sensor say 12v +/- 5% (that means 11.4 to 12.6 volts)

I know that automotive "12v" is more like 13 something.

What is aircraft 12v?

Did anyone use the 12v sensor and put an IC voltage regulator on it?

Or do you just hook it up to the "12v"

If I need a voltage regulator, a 3 pin 7805 is as easy to hook up as a 3 pin
7812.

 

What are the "flying guys" using?

 

Noel