The following News Item appeared in the October Edition of Rail Express Publication . . .

The new Sentinel Safety product range from PRM Engineering Services includes the latest generation Height and Slew Limiters to allow safe operation around powerlines and within confined spaces. Already in use by rail operators around Australia, the Sentinel Height & Slew range of products can be configured for height only, slew only or height and slew operation to suit your machine or site requirements.

The Sentinel Height and Slew limiters are perfect for the safe operation of excavators, loaders, skid steers and backhoes when working under overhead powerlines, in and around bridges and inside tunnels and can be installed on new and old machines alike. The Sentinel Height and Slew limiters have also been designed with rail operators in mind, with rail specific systems that meet the machine safety requirements of multiple rail authorities.

The Sentinel Height and Slew limiters have been used by rail authorities Australia wide for a several years and can be retrofitted to any machine with articulated booms. Based on these years of experience PRM Engineering Services has developed several features such as predictive height stopping to prevent overshoot, fail to safe motion stop valving, blade and offset boom stops to ensure the operator cannot inadvertently go over height or slew limits and optional password protected menus for supervisor restricted control of limiter related settings.

PRM has also recently released two new optional features; HV Powerline Detection and Automatic Attachment Recognition. By combining the functionality of our widely used Sentinel Height and Slew limiters with a patented Sentinel HV Aerial Module, the system can ensure safe operation around powerlines from the moment the machine is turned on. The system prevents the machine moving within the exclusion zone around powerlines and motion-cut valving prevents the machine from moving closer while allowing the operator to direct the machine away from the electricity source.

Automatic attachment recognition allows the system to recognise up to seven attachments and automatically adjust height settings for the system without operator input. Automatic attachment recognition reduces the risk of incorrect attachment selection and can be used with or without supervisor approval as required.

Brisbane-based PRM Engineering Services are passionate about safety and have a long-standing heritage of safety system design and installation since 2002. With experience in the rail and earthmoving industries, PRM Engineering Services have become integrators and developers of a number of unique safety and control systems that meet customer requirements. These projects have ranged in scope from customisations of height or slew systems through to full redesign of control systems for on-track rail vehicles. Ongoing local support has been provided by the PRM Engineering team during the testing, installation, and operational phases of the technology.

Along with our team of talented engineers, the PRM Group of companies can also assist with the installation or modification of electrical, hydraulic, and control systems for heavy machinery, enabling PRM Engineering Services to offer end-to end innovative and customised solutions to our wide range of customers.