Series EDA Electronic Pressure Control

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The series EDA Electronic Pressure Control is a versatile compact package that can replace a separate gauge, two switches and a transmitter in a system. This can save money, installation time and panel space.

The package incorporates two SPDT relays that have the on and off points fully adjustable over the range for control or alarm use. The front face has LED indicators for switch status and a large backlight two-line display showing process value and indication units. Programming is easy with simple menu structure, two-line display and external programming buttons. The weatherproof housing is suitable for a range of applications with panel-mount, flush-mount or pipe-mount ability. Features include zero set, adjustable dampening, menu lock-out, peak and valley indication, removable terminal blocks, adjustable time delay and scalable transmitter output.

The display units include: psi, kg/cm², bar, in Hg, ft wc, kPa, MPa, %FS, in wc, mbar, cm wc, mm Hg, or oz/in² (choices depend on range). The test mode simulates input over the range without pressuring to easily test switches and transmitter output function. It features failsafe for sensor failure, over pressure, high temperature limit, low temperature limit or keypad short. The user chooses if the relay is de-energised, energised or no action. With the transmitter option, the user chooses an output of 3.6 mA, 22 mA or no action. The unit also has a selectable alternation of set points between the relays for even wear on duplex pump applications.