Siemens LDS 6 Operating Instructions Manual page 48

ESD guidelines
B.1 ESD (ElectroStatic Discharge)
Wrist Straps
In many facilities, people are one of the prime generators of static electricity. Therefore, wrist
straps must be used while carrying out maintenance and service on the SITRANS SL, to
keep the person wearing it connected to ground potential. A wrist strap consists of the cuff
that goes around the person's wrist and the ground cord that connects the cuff to the
common point ground.
Work Surface
An ESD protective work surface is defined as the work area of a single individual,
constructed and equipped to limit damage to ESD sensitive items. The work surface helps to
define a specific work area in which ESD sensitive devices may be safely handled. The work
surface is connected to the common point ground by a resistance to ground of 106 Ohms to
109 Ohms. This is done by using a soft bench mat, which is connected to ground, on the
work surface. All equipment must be connected to grounded outlets and all personnel must
wear wrist straps connected to the bench mat using a cord. Bench mat, wrist strap and
lightweight cord can be provided from Siemens Laser Analytics in the ESD kit.
46
Sensor CD 6C Operating Instructions
Operating Instructions, 12/2007, A5E00912721-02