Analog compression testing machine specifications vary widely, but common features include a capacity range from a few kN up to several thousand kN (e.g., 300 kN or 3000 kN) and a maximum clearance between platens that can range from around 350 mm to over 700 mm. Key specifications also include the load measuring system, which features an analog dial with a minimum graduation or least count (e.g., 0.5 kN or 1 kN), as well as accuracy, typically within ±1%. Power requirements normally involve a 3-phase AC power supply