Hach-Lange Sigma SD900 Portable - Manual (Page 31)

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Installation
3.5.1 Power installation
The sampler can be powered by a battery ( section 3.5.1.1 ) or by
AC power ( section 3.5.1.2 ).
3.5.1.1 Battery installation
Prerequisites:
• 12 VDC gel electrolyte (lead acid) battery plus recharger.
Note: A 2-pin to 3-pin adaptor cable (Cat. No. 8739400) may be used with
older batteries containing a 2-pin connector to power the sampler.
Installation procedure:
1. Place the battery directly behind the controller ( Figure 3 on
page 13 ).
2. Pull the rubber straps up and over the clips at each end of the
battery to secure it to the sampler body.
3. Connect the cable from the battery to the power connector on
the controller.
Figure 14 Side view of controller—connectors
1 Power connector 3 Serial connector
2 Auxiliary connector 4 Distributor/full bottle shut-off connector