The 600 series S-type load cells include nickel-coated alloy steel and stainless steel variants. Models 615 and 616 are suitable for harsh environments and frequent wash-down, and are sealed to IP66. For even higher resistance to ingress, Models 619 and 620 are rated to IP67 and IP68 respectively. The 600 series is ideally suited to process applications requiring weighing capabilities from 50 kg up to 5000 kg. S-type load cells are also frequently used to convert mechanical scales to electronic operation, allowing vendors to enhance existing weighing instruments quickly and easily without incurring the high costs of designing a completely new product.