Parr Instrument PDM User Manual
Parr Instrument Sensors
Meter Installation in 4838 Reactor Controller
1. Unplug the power cord of the 4838 controller. Remove the (2) screws located on the top
corners of the rear panel on the controller. Gently lift the cover, which is hinged at the
bottom, forward taking care not to apply tension on any wiring internally.
2. If applicable, remove and discard the black
hole plug on the sloped front panel. This can
be done by pinching the clasps on the back of
the plug from the inside of the front plate.
3. Insert the controller through the panel cutout,
from outside in, making sure the rubber gasket
is on the outside of the controller front panel.
(If wires are preinstalled, remove the terminal connector by releasing the tabs on the sides of
the 2082E meter and gently pulling the terminal connector off. Reference photos below.)
Slide the white mounting bracket onto the 2082E with the mounting screws pointing towards
the front panel. Slide the mounting bracket forward until it touches the controller panel. The
clasps on the mounting bracket should align with the groves on the 2082E. Gently tighten
the screws until the 2082E is held into place. (If removed, reattach the terminal connector.)
Terminal Connector Removal
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No. 562M