SIPLACE S-23 HM - 第93页

User Manual SIPLAC E S-23 HM 2 Operational Safety Software Version SR.406.xx 02/00 US Edition 2.7 Emissions and energy effi ciency of the MCM 1405 ND monitor 93 2.7 Emissions and energy efficiency of the MCM 1405 ND moni…

2 Operational Safety User Manual SIPLACE S-23 HM

2.6 Lock out and tag out procedure Software Version SR.406.xx 02/00 US Edition

6. To evaluate the lock/tag out procedure, the safety department will conduct periodic inspec-

tions. As part of the inspection the safety department will document that all facets of the pro-

cedure are followed. The safety department will follow up with formal classroom review or re-

training of the LO/TO procedure.

2.6.6 Review

This procedure will be reviewed and amended as required but in no case less frequently than once

a year. 2

2.6.7 Appendix

These procedures represent the minimum lock/tag out requirements. Any additional safeguards

needed to complete work safely can be specified by facilities supervision, the safety officer, the

safety committee and the health department. 2

User Manual SIPLACE S-23 HM 2 Operational Safety

Software Version SR.406.xx 02/00 US Edition 2.7 Emissions and energy efficiency of the MCM 1405 ND monitor

2.7 Emissions and energy efficiency of the MCM 1405

ND monitor

2.7.1 X-ray radiation

The X-ray radiation generated in the monitor is adequately shielded by the intrinsically safe cath-

ode-ray tube. The local emissions are less than 1 µS/h (micro-Sievert per hour). The accelerating

voltage is limited by the device to a maximum of 26 kV. 2

The monitor conforms to the German Directive for protection against harmful X-ray radiation. The

X-ray emissions from the monitor conformed to the DHHS Rules 21 CFR, subsection J on the date

of manufacture and to the FCC Rules, part 15. 2

2.7.2 Efficiency and electromagnetic emissions

The MCM 1405 ND monitor fulfils the conditions for efficiency (to ISO 9241-3) and safety (to EN

60950). 2

The low-frequency electromagnetic emissions fall below the MPR II guidelines issued by the

Swedish Radiation Institute in Stockholm. 2

2 Operational Safety User Manual SIPLACE S-23 HM

2.8 ESD guidelines Software Version SR.406.xx 02/00 US Edition

2.8 ESD guidelines

2.8.1 What does ESD mean?

Almost all of the modules in use today are equipped with highly integrated MOS blocks and com-

ponents. The manufacturing techniques used mean that these electronic components are ex-

tremely sensitive to overvoltage and thus to electrostatic discharge. 2

The abbreviation for such modules is ’ESD’ (Electrostatic Sensitive Device). This is used interna-

tionally, although the German abbreviation ’EGB’ may also be seen. 2

The following symbol on cabinet rating plates, racks or packaging indicates that components

which are sensitive to electrostatic discharge have been used and thus that the modules con-

cerned are also touch-sensitive. 2

ESDs can be destroyed by voltages and power levels that are far below the level

that can be perceived by humans. Such voltages occur if a person touches a

component or module without earthing themselves. Components that are ex-

posed to such overvoltages do not generally appear to be defective immediately

- incorrect behavior starts after the component or module has been in operation

for some time. 2

2.8.2 Important measures to protect against static charging

Å Most plastics can easily become charged and must therefore be kept away from at-risk com-

ponents.

Å Always ensure that people, the workplace and packaging are safely earthed when handling

electrostatic sensitive components.

2.8.3 Handling ESD modules

Do not touch electronic modules unless it is absolutely essential to do so in order to carry out other

work. If it is necessary, make sure that you do not touch the pins or printed conductors when you

pick up flat modules. 2

Do not touch components unless 2

Å you are constantly earthed by an ESD wrist strap or

Å you are wearing ESD shoes or ESD shoe earthing strips on an ESD floor.

Always discharge yourself before you touch an electronic module. To do this, simply touch a con-

ductive and earthed object immediately before you touch the module (such as unpainted parts of

a switch cabinet, a water pipe, etc.). 2