can be on/off or proportional. Pistol grip remote controls are held, as the name suggests, in one hand like a pistol. There is a trigger used for proportional control of a valve or as a deadman switch in conjunction with thumbsticks on the main body. The face plate can include a variety of functions, such as buttons, switches, joysticks/thumbsticks, and graphical display screens. The sides of the device can also house functions, typically auxiliary. The pistol grip has more functionality than a handheld transmitter, but not as much as a belly pack. The most flexible transmitter is the console box, which the operator straps on around their neck, shoulders, and/or waist, depending on the harness, with the transmitter resting against the operator’s stomach. A console box can have multiple different functions through buttons, switches, and joysticks/thumbsticks. They can also incorporate high-resolution, sunlightviewable display screens. Console box transmitters are ideal for machines with more – and more complex – functions. The number of inputs/outputs needed can narrow transmitter selection to one type, but some applications can be covered by more than one option. In this case, operator familiarity or preference is typically the decision-making factor. For example, both a handheld and a console box transmitter are suitable for some applications, but if the cabin has levers rather than buttons, the belly pack is the better choice. Keep in mind, operator preferences can vary by country and device operation time. In choosing between models from different suppliers, look at size, weight, ergonomics, customization and branding capabilities, local supply and service, and ruggedness as the differentiators. Ruggedness refers to the device’s ingress protection ratings and ability to withstand drops and vibration. Many OEMs looking to optimize operations and improve operator comfort and safety have already implemented remote controls. Usage is widespread and operator acceptance is high. OEMs weighing whether it’s time to move controls beyond the cab would be wise to consider the low barriers to entry and abundant benefits of radio remote controls. For further information please visit: https://www.danfoss.com/en/ www.hpmag.co.uk HYDRAULICS & PNEUMATICS September 2024 17
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