2017 V2
Below you will see the dial of a Fluke 116 Multimeter, although not all meters are identical the symbols used should be similar.
Hover your pointer over the various settings of the meter for more information, click on them for instructions on their use.
This setting is for measuring the AC voltage of a power source, for example the mains electrical supply.
This setting is used for measuring a DC power source, for example a battery.
TO AVOID ELECTRIC SHOCK, INJURY OR DAMAGE TO THE METER ISOLATE POWER FROM THE CIRCUIT BEFORE TESTING RESISTANCE.
The resistance setting of the Multimeter is used for measuring the electrical resistance of a circuit. This setting can be used to measure the resistance of thermistors, switches and fuses.
TO AVOID ELECTRIC SHOCK, INJURY OR DAMAGE TO THE METER ISOLATE POWER FROM THE CIRCUIT BEFORE TESTING CONTINUITY.
The continuity setting of the Multimeter is used as a quick way to check switches and fuses are open or closed circuit. It is not intended to measure resistance (see Resistance setting).
Using the temperature setting of the meter requires a K Type adapter and a suitable thermocouple probe, such as the one used with the Flue Gas analyzer.
Millivolts
The millivolt setting is used in the same way as the AC and DC volt settings.
Current
This setting is for measuring small currents its main use is to check flame rectification currents.
The Capacitance test can be used to check pump or fan capacitors. The Diode test is used to check diodes in things like bridge rectifiers.
What is a Multimeter?
A multimeter in this context is a hand held device for measuring the various electrical characteristics of a circuit.
Why is it called a "Multimeter"?
Originally there was a separate meter for each reading, voltage, resistance, capacitance and so on. The Multimeter combines all these tools onto one box.
What is it for?
The Multimeter is required for many tasks in our daily work. While fault finding it enables checking of component resistance, supply voltages and enables completion of important safety checks.
