E+H calls the RIA452 digital panel-mount display unit a universal unit that accepts virtually any measurement signal, and processes that information to provide programmable indication and output for a wide variety of process control applications in pump control and batch functions. The unit features a seven-digit, 14-segment, multicolored LCD monitor, universal inputs and up to eight relay outputs for pump control. Other features include digital status inputs for pump monitoring, min/max value memory, linearization table capability with 32 points, analog output, and freely programmable engineering units."Numbers and engineering units are displayed in white, bar graphs in yellow, over-range and under-range indicators in red, and the limit value flags and digital status inputs in green and yellow," says Jerry Spindler, business development manager for Endress+Hauser. The RIA452 can provide power directly to two-wire transmitters, and the scalable analog output offers many different ways of forwarding the input signal, such as zoom function, linearization, offset, inversion and signal conversion. An optional pulse output gives the user the option of transmitting integrated process values. This gives an OEM an attractive unit to offer customers, which can add value to the overall design. Being intrinsically safe, it can be used in hazardous areas if necessary and it is UL recognized. In addition, the limit-relay switches can be configured for operating modes that include minimum/maximum safety, alternating pump control and batch function, time control, gradient, and device and sensor malfunction."The unit even has a built-in power supply for loop-powered sensors, so extra devices aren't needed, saving cost and wiring," says Spindler. "The ability to save the programming and upload it to a PC reduces further programming of additional units for the same application. The initial programming also can be done on the PC with our free software and then transferred to the unit. For security, the programming can be locked with either a hardware key or a software code."