June 25, 2015 - PR electronics introduces 7501 HART temperature transmitter that delivers HART 7 functionality with HART 5 compatibility and can be configured to measure 2, 3 and 4 wire RTDs, 13 different thermocouple types as well as bipolar mV and resistance signals, and it provides an analog output.
The field mounted Ex d explosion- and flame proof temperature transmitter has a local operator interface for easy programming, review and diagnostics of process values in the field.
A user can easily configure the transmitter from the front of the housing in any environment by simply touching the optical buttons – even when wearing gloves. The user can also perform advanced HART programming from the front, and as a result, significantly reduce the need for handheld communicators (HHC). The easy-to-read 60 mm high definition display provides a clear indication of the process magnitude, supported by a radial bar graph in real time.
The transmitter has three mounting options: on the temperature sensor, on a pipe, or on a bulkhead. Configuration is easy and logical with scrolling help texts and three optical buttons: up arrow, down arrow and OK. Thanks to the user-friendly PR Menu Guide, it is possible to configure the device in less than 1 minute.
Chief Technology Officer, Stig Lindemann says: “The optical buttons combined with the 10 mm explosion proof window is a patent-pending technology. It enables the user to access the LOI in all operating environments without opening the housing. The optical buttons are immune to interference of ambient light sources and false triggering caused by shadows and reflections and it dynamically adapts to accumulation of dust and moisture.”
