The example figures illustrate a 4‑slot DMU801. The same instructions
apply to all DMU801 sizes.
The plug‑in module locations in DMU801 slots
must be in accordance with the software configuration. If you insert a module into a wrong
slot, the module does not break but it may function incorrectly.
Power off the station.
Remove the sensor connectors from the plug‑in module you are going to replace.
Unscrew the 2 finger screws in the plug‑in module.
Remove the plug‑in module from DMU801 by pulling from the module edges.
CAUTION When removing or inserting the modules, be careful not to bend the connector pins.
Place the new plug‑in module in the same DMU801 slot you removed the old one
from.
Make sure that the module is well aligned in its proper position. Gently press the
module down until the handles contact the frame. Do not use force.
Tighten the finger screws by hand or, alternatively, use a crosshead PH1
screwdriver.
The recommended maximum
torque is 1.0 Nm. If you use a tool and tighten to over 0.8 Nm, it may be difficult to
unscrew the screws with fingers only.
If the screws do not
tighten properly, check that the module is pressed all the way down.
Insert the sensor connectors in the new plug‑in module, in the same order as they were
in the replaced module.
When you connect a pressure
hose to the DMB801 pressure port, keep the hose as straight as possible. Avoid bending the
hose and make sure that there are no loops.
Power up the station.
Check that the sensor connections are working, and the data reports show data from each
sensor.
Plug‑in modules have LEDs that blink
green once a minute to indicate that the modules are functional.