Metrohm 731 Relay Box - Manual (Page 14)

2. Installation
Relay Box 731, Instructions for use 8
When replacing fuses care must be taken that the voltage, amper-
age and type have been correctly selected (see Technical specifica-
tions, Fuses, page 23).
WARNING!
Short-circuiting fuses or the temporary use of incorrect fuses is for-
bidden.
Static electricity:
The circuits contain components that may be destroyed by electro-
static charges or whose functions may be affected by them. Work on
open instruments should only be carried out in ESD-protected sur-
roundings.
Suitable measures:
1.
Conducting mat on the work surface which is connected to the
protective earth via a resistance of approx. 1 megaohm.
2.
Earthed soldering bits.
3.
The wrists of persons working with components must be earthed
by connection to the protective earth via a resistance of approx. 1
megaohm.
4.
Components and assembled PCBs should only be stored and
transported in conductive packaging or foam.
5.
New components should be stored in their original packaging
until required.
If it becomes apparent that the instrument can no longer be oper-
ated safely then it should not be used at all.