Altech Corp. has introduced a new series of Safety Rope Pull Switches that are designed to provide access to e-stop capabilities over the entire length of the rope. They are typically used to directly control power to the devices that provide motion to a conveyer or machine and can be set up to control local areas or zones.
The SRM has a metal body and is designed for use in more rugged applications like conveyor or machine systems. They are latching style switches that must be mechanically reset by the device on the switch. In addition to the reset button, some models are also equipped with a built-in push/pull e-stop button.
The proper tension on the rope must be maintained in order to set and reset the contacts. Both versions have built-in tension monitors, which can be viewed through an integrated inspection window.
The SRM also has a second viewing window that indicates the internal contact positions. Some versions of the SRM are available with a tension warning device that will send an output signal if the cable begins to slacken before the switch changes state.
Many SRM switches are available with a Quickfix rope mounting system, which saves a great deal of time attaching and adjusting the rope tension.