Related Services Pressure Pressure gauges can be tested in many modes, such as differential, absolute and vacuum on all industry standard measurement scales Force & Tension Our mechanical force team utilizes class certified weights and load cells to calibrate weighing and counting scales from grams to aircraft and truck scales of 100,000 pounds with less than .01% accuracy. Electrical & Radio Frequency AVACS electronic calibration department calibrates, tests and certifies multimeters, power supplies, function generators, Oscilloscopes, spectrum analyzers and measuring instruments of all types and manufacture: 100v(ac or dc) and 1000 amps (ac or dc).