1 electrostatic discharge (esd) considerations, 4 electrical installation – Hach-Lange SC 1000 User Manual
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Installation
3.3.1 Electrostatic discharge (ESD) considerations
Delicate internal electronic components can be damaged by static electricity, resulting in
degraded instrument performance or eventual failure. The manufacturer recommends
taking the following steps to prevent ESD damage to your instrument:
•
Before touching any instrument electronic components (such as printed circuit cards
and the components on them) discharge static electricity from your body. This can be
accomplished by touching an earth-grounded metal surface such as the chassis of an
instrument, or a metal conduit or pipe.
•
To reduce static build-up, avoid excessive movement. Transport static-sensitive
components in anti-static containers or packaging.
•
To discharge static electricity from your body and keep it discharged, wear a wrist
strap connected by a wire to earth ground.
•
Handle all static-sensitive components in a static-safe area. If possible, use anti-static
floor pads and work bench pads.
3.4 Electrical installation
N o t i c e
To minimize hazards and ESD risks, maintenance procedures not requiring power to the analyzer
should be performed with power removed.
D A N G E R
Electrocution hazard. Only qualified personnel should conduct the installation tasks described in
this section of the manual.
D A N G E R
Electrocution hazard. Always install a ground fault interrupt circuit (GFIC)/ residual current circuit
breaker (rccb) with a maximum trigger current of 30 mA. If installed outside, provide overvoltage
protection.
D A N G E R
With fixed wiring, a disconnecting device (local interruption) must be integrated into the supply
line. The disconnecting device must meet the applicable standards and regulations. It must be
installed near the device, be able to be reached easily by the operator and labeled as a
disconnecting device.
If the connection is established using a mains connection cable that is permanently connected to
the power supply, the plug of the mains connection cable can serve as local interruption.