Parr Instrument TDM - Manual (Page 3)

TDM Installation
w w w . p a r r i n s t . c o m 3
Wiring installation in 4848 Reactor Controller
1. If applicable, remove the black hole plug on the back of the controller labeled RPM INPUT. This can be
done by pinching the clasps on the back of the plug from inside the back panel.
2. Insert the 4-pin receptacle (494E), on the A2106E harness, into the RPM input hole from the inside out.
Slide the ring terminal, from the A2106E 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.
A1695E Excitation Board
Tach out
Tach in