What is a pyrometer and what does it do?
The pyrometer is one of the first indicators of trouble in the engine. If an injector clogs, a cylinder or piston cracks, or an electronic injector has a problem; a pyrometer will note the change. The reason a pyrometer will call attention to engine problems faster is that a pyrometer measures the internal thermo-dynamics of an engine. The benefits are longer engine life, better fuel consumption, lower emissions and an indication of malfunctions before damage occurs. To determine your safe exhaust temperature, run a well-tuned engine at full RPM and horsepower on the inertia dynamometer or under a loaded pull. Note the exhaust temperature and subtract 200*. This is your safe maximum exhaust temperature. This temperature may be exceeded for a short period and will not cause serious damage. Stay in the upper on third of your temperature range as much as possible. Operation in the lower range isn’t as critical as exceeding the maximum range. The thermocouple is the power source of the who
