Pacific Scientific Co.: The Newport Beach manufacturer of electrical and safety equipment posted a profit of $9.5 million, or 85 cents a share, for 1994. That compared to earnings of $8.3 million, or 77 cents a share, for 1993, which included a gain of $1.1 million from an accounting change. Revenue rose 20% to $234.7 million from $195.6 million. For the fourth quarter, profit rose 43% to $3.3 million, or 29 cents a share, from $2.3 million, or 21 cents a share, for the same period a year earlier. Three-month sales were up 17%, to $66.1 million from $56.3 million.