Ron StageMaster

Safety Above All

Wireless, stage safety device for load monitoring as well as overload and underload detection from show installation thru dismantling

• Multi Load Cell: Up to 16 load cells per system (32 load cells capability is under development)
• Laptop based, real time load-map monitoring that can be overlaid on stage-plan layout (AutoCad etc.)
• Small dimensions provide low headroom loss and portability
• Real time, simultaneous load measurement including overload and underload detection of individual hanging points, summary of several points (groups), and of the entire structure
• Reports: Downloadable data log of months of continuous measurements, easily transferable to any database software
• Set point for alarming and/or stopping the hoists in overload or underload
• Battery life of 1500 hours on common disposable batteries, with optional 110/220VAC operation
• 5:1 and 10:1 safety factor
• 2t standard capacity. With range of capacities from 0.5t and higher
• R.F transmission range: Up to 450' / 150 meters

Hanging tons of sound and lighting equipment above spectators and performers is a serious matter.

Scientifically, each time there are more than two hoists on a beam, or more than three hoists in a structure, there will occur the phenomenon known as "statically indeterminate structure", which results in unpredictable load distribution. In most cases this will cause load imbalance, where some of the hoists may reach overload while others carry only a small part of the load.

Experimentally, it has been shown that a visually balanced structure is prone to have imbalanced load distribution, and some of the hoists might end up overloaded - in extreme cases even severely so.

Thus, overload situations might happen to the most experienced riggers, even if each hanging point's load is calculated and the calculation falls within the limitations of the nominal hoist and truss capacity. The actual load distribution on the truss is still unpredictable and cannot be calculated, or even estimated.

The solution to the need of ensuring safe installations and shows is real-time load monitoring and overload detection.

RON StageMaster is a wireless, multi load-cell, stage – safety device for load control and overload prevention. This top-of-the-line development is based on our 30 years experience in load monitoring and crane scale design and manufacturing.

This laptop based system is a user-friendly, real-time load-map monitor that can be overlaid on stage-plan layout ( e.g AutoCad). The user can assign a name to each predetermined group and easily redefine the group members as required. Doing so enables the user to simultaneously monitor 16 (soon 32) individual hanging points, summary of several points (groups) and of the entire structure. The system is configurable up to 16 (32) load cells per system and to more than one system per site.

RON StageMaster enables monitoring all the loads during installation and throughout the entire show, detecting overload and danger, zero, tare, sum, max and readout resolution for each load cell or any of the predetermined groups. The downloadable data log of weeks of continuous measurements is comprised of operator name, time, weight, danger, overload situations and the total cumulative weight for each group. It enables documentation of each show with detailed report and statistical analysis. The set points may be used for alarming and/or stopping the hoists in overload and underload situations.

RON StageMaster is user-friendly and easy to operate and configure for each project. The wireless communication between load cells and receiver enables fast, easy and neat installation. The load cells' small dimensions provide outstandingly low headroom loss as well as portability. The 1500 hours battery life on common disposable batteries with optional 110/220 VAC operation provides plug-and-forget advantage.