Procal Solution

Scale name	Typical installed accuracy* (depending on ring diameter)	Scale pitch	Coefficient of thermal expansion at 20 ºC	Ring diameter	Readhead compatibility
RESM	(300 mm diameter) ±3.1 arc second (150 mm diameter) ±5.5 arc seconds (75 mm diameter) ±9.5 arc seconds	20 µm/40 µm	15.5 ±0.5 µm/m/°C	52 mm to 550 mm	VIONiC, TONiC, TONiC UHV, TONiC FS, QUANTiC
RESA30	(300 mm diameter) ±3.1 arc second (150 mm diameter) ±5.5 arc seconds (75 mm diameter) ±9.5 arc seconds	30 µm	15.5 ±0.5 µm/m/°C	52 mm to 550 mm	RESOLUTE, RESOLUTE UHV, RESOLUTE FS

Scale name	Typical installed accuracy* (depending on ring diameter)	Scale pitch	Coefficient of thermal expansion at 20 ºC	Ring diameter	Readhead compatibility
REXM20/REXT20	(≥ 100 mm diameter) ±1 arc second (75 mm diameter) ±1.5 arc seconds (≤ 57 mm diameter) ±2 arc seconds	20 µm	15.5 ±0.5 µm/m/°C	52 mm to 417 mm	VIONiC, TONiC, TONiC UHV
RTLA with optional FASTRACK	(≥ 100 mm diameter) ±1 arc second (75 mm diameter) ±1.5 arc seconds (≤ 57 mm diameter) ±2 arc seconds	20 µm	15.5 ±0.5 µm/m/°C	52 mm to 417 mm	RESOLUTE, RESOLUTE UHV, RESOLUTE FS

Scale name	Scale pitch	Coefficient of thermal expansion at 20 ºC	Disc outer diameter	Readhead compatibility
RCDM	20 µm/40 µm	~8 µm/m/°C	17 mm to 108 mm	ATOM, ATOM DX

Scale name	Scale pitch	Coefficient of thermal expansion at 20 ºC	Disc outer diameter	Readhead compatibility
RCDM	40 µm	15.5 ±0.5 µm/m/°C	Fixing options: Bolts: 38.4 mm to 120 mm Clamp: 31 mm to 120 mm For other sizes, contact Renishaw	ATOM DX