Pump Module - Ventis MX4 Product Manual

Ventis™ MX4 Product Manual
2 Lift and remove the sensor barrier and gasket from the inside the monitor case top. Ensure the
entire case top is free of adhesive; gently scrape, if needed. Wipe with a clean, dry, soft cloth or
brush.
3 Lift the backing from the new sensor barrier to reveal the adhesive.
4 Carefully position the new barrier. Each shaped opening matches the shape of the sensor it
protects. Press to attach to the inside of the case top.
Replacing the Vibrating Motor (if needed).
1 Place the monitor's case top face down.
2 Lift the vibrating motor from its partition. The partition has two sections divided by a ridge. Discard
the used motor.
3 To properly place the new vibrating motor, its contact pins face the user and align with the left edge
of the partition. (The motor's movable component fits within the small section of the partition.)
4 Press into place.
Reassembling the Circuit Board Assembly and Monitor.
1 Re-attach the main board to the sensor board, aligning their connectors.
2 Press. A slight click indicates the boards are securely attached.
3 Re-place the circuit board assembly into the monitor's case bottom.
4 Re-place the monitor's case top (or its new case top).
5 Tighten the two captive screws on the upper portion of the case bottom.
6 Re-place the battery pack and tighten the four captive screws on the case bottom.
7 Dispose of the used sensor(s) according to company policy.
8 Perform a full calibration following the addition or replacement of any sensor, or the replacement of
the sensor water barrier or the monitor case top.

PUMP MODULE

There are two field replaceable parts on the aspirated case: the water barrier and case top door. As needed, choose,
read, and follow the appropriate instruction set(s).
pump module
Pump Inlet Filter Cap and/or Water Barrier Replacement (if needed).
1 Power off the monitor.
2 To remove the pump inlet filter cap, turn counter clockwise; set aside.
3 Remove the water barrier from inside the inlet.
4 To properly place the new water barrier, its bottom will come into contact with the pump inlet surface on
which the barrier sits. The barrier's bottom side has the smaller diameter opening in the black ring.
5 Re-place the pump inlet filter cap (or new cap); turn clockwise to tighten.
Pump Door Removal and Replacement (if needed).
1 Power off the monitor.
2 Loosen the single captive screw on the pump module door.
3 Slide the door down and lift.
4 The upper portion of the door has pegs on either side. The pegs fit into grooves where the door meets
the module; they flex slightly for easy door removal. Angle the door so that one peg moves to the bottom
of its groove and the other moves the top of its groove. Lift to unhinge the pegs and remove the door.
5 To properly place the new door, secure one of the pegs into its groove on the pump module.
6 Angle the door and press the other peg into its groove.
7 Close the door and slide up into place.
8 Tighten the single captive screw on the pump door.
© 2014 Industrial Scientific Corporation
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