Hach-Lange ORBISPHERE A1100 Family - Manual (Page 15)

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Section 3 Introduction
3.1 What you have received
3.1.1 A1100 electrochemical sensor
The sensor may be delivered separately or as part of an ORBISPHERE system, depending on
the individual order.
The sensor (as illustrated in Figure 2 above) will be delivered fitted with a plastic screw-on
storage cap to protect the sensor head. This is held in place with a plastic collar.
A plastic screw-on base is also provided to protect the connection socket, and which also
provides a suitable stand for the sensor during maintenance procedures, and when not in use.
3.1.2 Protection caps
Non-ATEX sensors (A1100)
Two protection caps will be delivered with each sensor, one without a grille (part number
33051-S0) and one with a grille (part number 33051-SP).
A third protection cap (part number 33051-SG) is also available as an option and improves the
maintenance interval for beer or soft drinks process applications.
The three protection caps are illustrated below:
ATEX sensors (A110E)
Only one protection cap will be delivered with each sensor (part number 33051-SG or
33051-H0).
Figure 2 A1100 sensor with storage cap and base
Figure 3 Protection caps