550ACD Electro Pneumatic Converter Order
A catalogue order for the DIN-connected 550 build, without private labelling.
Controlair Type Transducer 550-A-C-D configuration, standard EAA nameplate
What The Customer Needed
The buyer wanted the miniature body for a crowded valve gallery but also needed the instrument to be removable without opening a terminal box, because the shutdown window on that plant is short.
How It Was Built
The 550 miniature body with the DIN 43650 connector gives both: it fits where a full-size transducer does not, and it isolates electrically with one screw.
What The Photographs Show
Each unit was calibrated with its connector fitted so that the shipped assembly is the assembly that was tested. The batch photographs show the finished units before packing.





How It Finished
A compact, quickly removable instrument for a gallery where both properties mattered.
The Models Behind This Order
Controlair Type Transducer550X Electro Pneumatic Transducer
Miniature EAA-550 series electronic pressure regulator, coded ordering
View specifications →
Controlair Type Transducer500X Electro Pneumatic Transducer
Controlair pattern I/P transducer, 4-20 mA in, 3-15 to 3-120 psi out
View specifications →
Controlair Type Transducer500X Electro Pneumatic Converter
Controlair pattern E/P converter, 0-5 V, 1-9 V and 0-10 V inputs
View specifications →
Controlair Type Transducer500AC Electro Pneumatic Transducer
500-AC configuration, 4-20 mA in, 3-15 psi out, 180 ohms
View specifications →Questions About OEM Orders
Can this configuration be supplied under our own brand
Yes. Nameplates are printed to customer artwork and part numbering and checked against the build before fitting.
How is a batch kept consistent
The whole quantity is built in one run and calibrated consecutively on the same bench against the same standard current generator and 0.1 class pressure gauge.
What is the specification on this order
550-A-C-D configuration, standard EAA nameplate.
Can we order a different range in the same body
Yes. The published selection table or coding system for this pattern lists the available input signals, output ranges and terminations.
Order The Same Configuration
Send the range, the termination and the quantity, and the quotation comes back against the published selection table for this pattern.
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