BoltSafe Sensor CMS (Continuous Monitoring System), available from AMS Instrumentation and Calibration , is a specially designed sensor to monitor the residual bolt load in bolted joints. In this way, the uncertainty in achieving the desired residual bolt load can be removed. This will result in enhanced safety, dependable joints, better control and improved cost benefit both during installation and throughout the joint’s service life.
The BoltSafe Sensor CMS is shaped as a regular washer, used as a washer, and is available in standard sizes to fit both metrical and imperial bolts in sizes from M20 to M64 (corresponding 7/8” to 2 ½”). The design is rugged and able to withstand though environments.
The BoltSafe Sensor CMS employs an ASIC (Application Specific Integrated Circuit) in each unit, which performs all the signal conditioning, digital network connection and a selective identification number for each unit. This means that each BoltSafe Sensor will have its unique serial number for identification and traceability. The calibration of the sensors is done once, and there is no need for re-calibration throughout the lifetime of the sensor when used within the specification.
The BoltSafe Sensor CMS can be read one by one using the handheld instrument SM-200 BoltSafe Reader, or directly from a PC through the CM-1000 Network Adapter, or directly from a PDI-NT. The PDI-NT provides different output signals.
BoltSafe Sensors CMS have a cable installed for the purpose of interconnecting several sensors into a network and hence monitor the residual bolt load in a continuous manner from one connecting point. CMS washers are delivered with 1m cable as standard. Optional delivered with 3m, 5m, or 10m, always to be specified in the order.