3.
Safety
Safety
You must adhere to the following safety precautions at all times when working on the Compac
C4000 processor. Failure to observe these safety precautions could result in damage to the
Compac C4000 processor, injury, or death.
Make sure that you read and understand all safety precautions before operating the Compac
C4000 processor.
Mechanical Safety
Make sure that the service area is thoroughly clean when servicing. Dust and dirt entering the
components reduce the life span of the components and can affect operation.
Electrical Safety
Always turn off the power to the Compac C4000 processor before opening the flame proof box.
Never touch wiring or components inside the high voltage area with the power on.
Always turn off the power to the Compac C4000 processor at the mains switch before removing
or replacing software or memory ICs.
Always take basic anti-static precautions when working on the electronics, i.e., wearing a
wristband with an earth strap.
The C4000 head, and its associated circuits and wiring, is a certified piece of electrical
equipment approved for use in a hazardous area (Class 1 Zone 1, Group IIA T3). Only parts
identical to those covered by the certification may be used where the integrity of the intrinsic
safety may be affected. All circuit boards are to be repaired only by Compac Industries Ltd.
Static Electricity Precautions
Electronic components used are sensitive to static. Please take anti-static precautions.
All circuit boards must be carried and transported in static-shielded bags. An anti-static wrist
strap should be worn and connected correctly when working on any electronic equipment. If an
anti-static wrist strap is unavailable, or in an emergency, hold onto an earthed part of the
pump/dispenser frame whilst working on the equipment. This is not a recommended alternative
to wearing an anti-static wrist strap.
Compac Industries Limited reserves the right to refuse to accept any returned circuit boards if
proper anti-static precautions have not been taken.
