The EsiWelma TW1-M electronic fuel flow meters for combustible gases have LNE-15272 rev. 1 type examination certificate dated 26/08/2009 attesting to conformity with international directives OIML R117 and R139. In keeping with the aforesaid directives, the TW1-M fuel flow meters can be supplied in two versions:- Standard version with electromechanical relay command output. – Non-sparking version with solid state relay command output, compliant with ATEX 94/9/EC directive and with ATEX EX nA IIC T4 X protection mode.
The display on the TW1-M electronic volumetric fuel flow meters shows:- Price in local currency.- Dispensed fuel (volume/weight). – – Unit price. Our fuel flow meters also include the volume – temperature compensation function, which consists of maximising the fuel dispensed into the vehicle tank, taking into account the ambient temperature so as not to exceed the acceptable pressure.
The electronic fuel flow meters can be supplied with one display (one-sided meter) or two displays (two-sided meter). The electronic fuel flow meters include the preset function of both price and fuel dispensed; they also interface with a remote PC (host) to provide dispensing data conforming to the protocol in use.