Millennium Enterprises Net Safety MLP-A/AR - Manual (Page 25)

Net Safety Monitoring Inc
MLP-A/AR/AD-ST1400-25 20
Rotate PCB Assembly
1. Remove the Controller’s Housing Cover.
2. Turn the power to the detector off.
3. Unscrew both the knobs marked "Pull Here".
4. Lift Controller faceplate from Housing and allow to hang from ribbon
cable.
5. Unscrew the two metal standoffs.
6. Carefully remove the PCB Assembly from the Housing.
7. The Rotator plate is secured to the bottom of the Housing and is accessible
after the PCB Assembly has been removed.
8. Rotate the PCB Assembly to desired position and line up the standoffs with
the mounting holes.
9. Insert standoffs in the appropriate horizontal or vertical mounting holes.
10. Tighten standoffs to secure PCB Assembly.
11. Replace faceplate and tighten "Pull Here" knobs.
12. Return power to detector and replace Housing Cover.
WARNING: See Appendix A, "Electrostatic Sensitive Device (ESD)", on
page 20 for handling instructions of electronic components.
Appendix A:
E
LECTROSTATIC S ENSITIVE D EVICE (ESD)
Electrostatic discharge (ESD) is the transfer, between bodies, of an electrostatic
charge caused by direct contact or induced by an electrostatic field.
The most common cause of ESD is physical contact. Touching an object can
cause a discharge of electrostatic energy
—ESD ! If the charge is sufficient and
occurs near electronic components, it can damage or destroy those components.
In some cases, damage is instantaneous and an immediate malfunction occurs.
However, symptoms are not always immediate
—p erformance may be marginal
or seemingly normal for an indefinite period of time, followed by a sudden
failure.
To eliminate potential ESD damage, review the following guidelines:
• Handle boards by metal shields — taking care not to touch electronic
components
• Wear grounded wrist or foot straps, or ESD shoes or heel grounders to
dissipate unwanted static energy
• Prior to handling boards, dispel any charge in your body or equipment
• Ensure components are transported and stored in static safe packaging
• When returning boards, carefully package in the original carton and static
protective wrapping
• Ensure ALL personnel are educated and trained in ESD Control Procedures
In general, exercise accepted and proven precautions normally observed when
handling electrostatic sensitive devices.
A warning label is placed on the packaging, identifying product using
electrostatic sensitive semiconductor devices.
Standoffs
PCB Assembly
Faceplate
Ribbon cable
Vertical Mounting Holes
(Insert Standoffs)
Horizontal Mounting
(Insert Standoffs)
Holes