The Automex gravimetric fuel-flow meter is a modern device designed to be used on engine test beds to allow to obtain superbly accurate measurements of fuel consumption in a combustion engine. It consists of the two following modules:

• AMX 212F - an electronic controller unit with the operator's interface featuring two LED displays and a convenient membrane keyboard.
• AMX 240 - a unit containing an electromagnetic valve, a measurement container (gauge vessel) and a strain sensor.

The Automex gravimetric fuel-flow meter measures the fuel mass flow. The fuel mass flow rate is calculated as the fuel mass loss/measurement time ratio. The device can be used in the following three modes:

• Filling Up - the fuel-flow meter automatically fills up the fuel in the vessel.
• Measurement with Assigned Time - the measurement of fuel consumption is carried out within the time assigned by the operator, with measurements being taken in a cyclical manner.
• Measurement with Assigned Fuel - measurement results are displayed after the assigned amount of fuel has been used up, with measurements being taken in a cyclical manner.

The controlled fuel dosage and the measurement time are set by the fuel-flow meter's operator. None of these basic operating modes interrupt or affect the fuel flow to the diesel engine.
Using the Automex fuel-flow meter, you can display the following values:

• the average fuel consumption recorded during the last measurement;
• the average fuel consumption recorded since the measurement started;
• the fuel mass in the measurement container (gauge vessel);
• the time in which the assigned amount of fuel was used up;
• the fuel mass which was consumed within the assigned time.

The AMX 212F fuel-flow meter is designed to be useful for a range of purposes: either working as a stand-alone device or as a component which integrates seamlessly into various larger diagnostic systems.
The AMX 212F fuel-flow meter, when used as a stand-alone tool, lets you:

• operate it easily using the convenient keyboard;
• view your results on the two 5-digit LED displays;
• make configuration settings that closely reflect your needs;
• store all the settings in the device after turning the fuel-flow meter off.

When incorporated in a larger system and working under a controlling device, the AMX 212F fuel-flow meter can:

• communicate through the RS485 interface;
• change all the parameters accessible from the keyboard;
• display consecutive measurement results.

Technical Facts:

Minimal fuel flow	0.2 g/s
Minimal measurement accuracy	0.2 %
Sampling frequency	19.2 Hz
Fuel vessel capacity	900 g