Method for dispensing a lubricant in a metered manner

A method for the metered dispensing of a lubricant by a lubricant dispenser having:

• a lubricant cartridge filled with lubricant,
• at least one electrochemical gas-generating cell, and
• an electronic controller operating the gas-generating cell and comprising a microcontroller and a switch that can interrupt current flow through the gas-generating cell, the method comprising the steps of:
• closing a circuit through the gas-generating cell by the electronic controller at adjustable time intervals so as to displace lubricant from the cartridge by a released gas,
• measuring electrical current flowing through the gas-generating cell at equal time intervals while the circuit is closed and as the gas is generated and determining a total current that has flowed through the gas-generating cell since the circuit was closed by multiplying the current at each measurement by the time span between succeeding measurements;
• and
• interrupting the circuit whenever the total current that has flowed through the circuit since closing of the circuit has exceeded a predetermined amount of current.