Hach sc Sensors Class 1 Division 2 Instructions D'utilisation page 6

Figure 4 Digital extension cable
To remove the connector safety lock, do the steps that follow:
1. Insert a small flat-blade screwdriver in the locking groove. Refer to
2. Pivot the screwdriver away from the groove and separate the two halves.
Section 5 Maintenance
Explosion hazard. Do not connect or disconnect electrical components or circuits to the
equipment unless power has been switched off or the area is known to be non-hazardous.
Explosion hazard. Substitution of components may impair suitability for Class 1, Division
2. Do not replace any component unless power has been switched off and the area is
known to be non-hazardous.
Exposure to some chemicals may degrade the sealing properties of materials used in the relays.
Periodically inspect the devices for any degradation of sealing properties and replace the relays if
found.
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D A N G E R
D A N G E R
W A R N I N G
Figure 2.