Syscon Corp., a D.C.-based developer and manager of computer software systems and microprocessor products, had record earnings and revenues in its first quarter.

For the three months ended Feb. 28, Syscon had profits of $440,000 (16 cents a share), including a loss due to contract litigation and more shares outstanding, compared with $494,000 (21 cents) last year. Revenues grew to $16.4 million from $14.5 million.

E.I.L. Instruments Inc. of Sparks, Md., recorded profits of $403,400 for its first half compared with $330,632 last year. Earnings per share in both periods were 28 cents because more shares were outstanding in this reporting period, company officials said.

Revenues were $12 million compared with $10.2 million last year.

For the quarter ended April 30, E.I.L. had earnings of $236,800 (16 cents) compared with $272,900 (22 cents). Revenues grew to $6.4 million from $5.7 million.

E.I.L. manufactures and distributes testing and measuring equipment.

Bethesda-based Survival Technology's earnings declined in its third quarter, the firm reported yesterday. Profits were $51,000 (2 cents a share) compared with $268,000 (10 cents) last year, although sales increased to $4.9 million from $4.6 million.