8 power connections – Hach 900 MAX User Manual

Page 33

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Section 2

Page 31

8990hrd.fm

Installing the Full-Bottle Shut-Off Device (Single Bottle Operation)

2.7 Installing the Full-Bottle Shut-Off Device (Single Bottle Operation)

1.

Install the rubber grommet into the hole provided in the cap of the
composite bottle.

2.

Slide the Full Bottle Shut-Off, float first, into the bottle through the center
of the grommet.

3.

Insert the Full Bottle Shut-Off connector into the receptacle (

Figure 15

)

and securely tighten.

Figure 15

Full Bottle Shut-off Installation

2.8 Power Connections

Note: Install the sampler on its own
circuit to ensure a continuous,
stable source of power.

Use the ac power cords to apply ac power to the controller and
the refrigerator.

The sampler controller operates on a 12 V dc which is supplied by a built-in
ac/dc power converter. The power supply is permanently sealed in the
compartment located behind the transition plate. An ac line fuse is located on
the left side of the controller.

An optional power backup assembly is located on top of the ac power supply.
The ac power backup is designed to power the pump and controller only. Pull
the rubber hold-downs up and over the clips at each end of the ac Power
Backup to hold it in place.

The short, 2-pin cable on the power supply (or battery) connects to the
controller receptacle labeled 12 V dc.

1.

Full Bottle Shut-off

2.

Refrigerator

1

2

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