Eliwell amp controller EV782

Hello,
this is the first time I have done this so bear with me.
My company supply, repair and calibrate all types of instrumentation but mainly pressure and temperature. One of my customers is an ice cream manaucturer that has a Cattabriga machine with an Eliwell EV782 Amp controller on it. the controller has failed and I am having trouble finding a replacement as the manufacturer (Eliwell) stopped making these unit over 10 years ago.
does anyone have any suggestions on how to replace this model or know any companies who could help.

many thanks

alan
tel:0-2-9 -2-0-8-1-0-5-9-7

one of the replacements will do the job,not sure i know that model , is it a split unit with a slave unit or compact, think it will be a case of retrofitting,