Parr Instrument PDM - Manual (Page 3)

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PDM Installation
Wiring installation in the 4838 Reactor Controller
1. If applicable, remove the black hole plug on the back of the controller, labeled PRESSURE
INPUT. This can be done by pinching the clasps on the back of the plug from the inside of
the back panel.
2. Insert the 9-pin receptacle (825E), on the A2104E, into the pressure input hole from the
inside out. Slide the Ring Terminal, on the A2104E green wire, onto one of the mounting
studs. Mount the receptacle using the (2) #4 keps nuts provided.
3. Locate the A1695E Excitation Board as shown.
4. Attach the 3-pin edge connector from the A2104E to “PT7” with the black wire closest to the
edge of the A1695E excitation board.