In technical and engineering writing, preciseness is a key value. At times, imprecise language or writing can produce disastrous results. Thus, it is often best to use simple tools, like an introductory commas, to help clarify technical writing.
The intro comma comes after a dependent clause.
Example
After she ran out of oxygen in the tank, she could not finish the experiment.
Also understand that using an intro comma just will make comprehension easier for your readership. See some examples below.
Example 1: No comma
Because of the refrigerant properties and design differences the charges will differ as well as the equipment and other design criteria.
Clarity with comma
Because of the refrigerant properties and design differences, the charges will differ as well as the equipment and other design criteria.
Example 2: No comma
Depending on the process of generation of CO2 emissions from a cryogenic tunnel freezers may overstate
the emissions by double counting them once at the generation site and once at the discharge site.
Clarity with comma
Depending on the process of generation of CO2 emissions from a cryogenic tunnel, freezers may overstate
the emissions by double counting them once at the generation site and once at the discharge site.
Example 3: No comma
With stoichiometric fuel control the mechanism is flexible and will be able to automatically adjust fuel delivery for E10 to E85 mixtures.
Clarity with comma
With stoichiometric fuel control, the mechanism is flexible and will be able to automatically adjust fuel delivery for E10 to E85 mixtures.
Example 4: No comma
On the HP xw8600 workstation port 1 is the port furthest from the air vents.
Clarity with comma
On the HP xw8600 workstation, port 1 is the port furthest from the air vents