Ultrasonic fuel level sensor Fluid-Trac

[pecanflyboy]

A company called SSI offers a line of ULTRASONIC fluid/fuel  level sensors called Fluid-trac.

I had a nice URL pasted here, but the system won't let me post it until I've had two successful messages.  So, google SSI Technologies, Level Sensors, Fluid-trac.

They offer a 2 wire (Resistive Emulation ), and a 3 wire (Voltage Output) sensor.  Since they are both about the same price ($95), I'd like to know which would work best with the Dynon EMS's.

The 2 wire (Resistive Emulation), replaces the standard 30-240ohm resistive float, reed-switch tube, or capacitive tube senders.  The output sink current is 20-200mA, and an emulated resistance of 30-240 ohms.

The 3 wire (Voltage Output) has a wider variety of input and output options to interface with microprocessor-controlled gauges or instrumentation.  It can be programmed to have a ratio-metric output to drive 12V electronic guages.    It can also be factory programmed to provide Non-Ratiometric voltage output (0.5 to 4.5V) for interfacing with control modules, PLC controllers, digital inst, or DAQ systems.  Supply voltage of 10 - 32 VDC.  Voltage output, Ratiometric or Non-Ratiometric, 0.5 - 4.5VDC.

So, my question is which unit will work better with the EMS? 

If the answer is the 3-wire, how should I have it programmed?  Ratiometric or Non-Ratiometric, and in what range?

I’ve tried to provide as much technical information as possible, in a brief format.  Please check out their website for more information.

Jimmy

 

[dynonsupport]

The resistance emulating ones won't work, since they need 12V and we only are 5V.

The voltage ones should work, on spec. No promises though, but we try to give reasonable advice based on the info available. We only read 0-5V, so anything higher than that will rail out, but it appears they are limited to 4.5V.

The voltage can be used on our D10/D100 series as a "capacitive" probe. Ie, there are two inputs that can be set to work in that mode - the main fuel level inputs. The D10/D100 series GP inputs can't take pure voltage inputs. On SkyView, any of the "C" types of EMS inputs can be used (there are 3 of them, per the SkyView Installation Guide).

You don't need the non-ratiometric probes since we'll do all calibration inside the EMS.

 

[pecanflyboy]

Thank you. Great response.

So, ratiometric 0-5VDC.

 

[pecanflyboy]

The resistance emulating ones won't work, since they need 12V and we only are 5V.

I'm unable to order the voltage output.  However, the Resistive Emulation is available in both the 2 wire and the 3 wire from USMarineProducts.com for $95.

2Wire:
http://www.ssi-sensors.com/wp/wp-content/uploads/2011/11/FT_AN1_2Wire_Product_Overview_03.pdf

3Wire:
http://www.ssi-sensors.com/wp/wp-co...ac_3Wire_Liquid_Level_Sensor_Resistive_02.pdf

The two wire is advertised as a direct, plug and play, replacement for a float gauge.  The three wire get's it's power from a 12V battery supply.  Why won't one of these work on the Dynon EMS.  If they will, which one is better?

 

[dynonsupport]

So we weren't aware of the 3 wire resistive style last time. The two wire still won't work, because it needs something which behaves like a gauge electrically.

The 3 wire resistive one, on spec, should work though. No promises of course - we don't have experience with them ourselves.

 

[pecanflyboy]

So we weren't aware of the 3 wire resistive style last time. The two wire still won't work, because it needs something which behaves like a gauge electrically.

The 3 wire resistive one, on spec, should work though. No promises of course - we don't have experience with them ourselves.

Thank you for the response. Based on the technical information, I suspected the 3-Wire would work, as well. I'll give it a shot, and report back.

Jimmy