Hydraulic Equipment - Hach POLYMETRON 8811 Manuel D'utilisation De Base

You may want to retain the box and other packing material in case later you need to ship the
analyzer. Please dispose safely and ecologically of the box and packing material (if not stored for
future use).
Please read through this manual thoroughly before carrying out the installation.
Mounting
The instrument requires the following connections:
• Samples
• Drain
• Compressed air
• Mains power supply
Location
The sequencer should be placed as near as possible to the sample inlet. The analyzer should be
located in an easily accessible area to facilitate the periodic checking of the sample flow rate and for
regular maintenance.
Connections

Hydraulic equipment

C A U T I O N
Be aware that the sample can be very hot.
Please comply with generic 8811 specifications indicated in Specifications on page 3.
Specifications are very extended for the 8811 sequencer itself. Moreover, you should refer to the
exact specifications coming from the analyzer itself (e.g. 8810 or TOC analyzers).
All inlet and outlet of sample lines are 10/12 mm tubing (or 1/2" upon request). Tube sizes between
sequencer and analyzer vary depending on analyzer.
On the sequencer, each channel is equipped with:
• Sample inlet connector
• A T-piece connecting a system of two valves (normally open + normally closed) equipped with a
flow adjustment nut under the black box
• NC valve going to the analyzer
• NO valve for the "Fast Loop" / return process line / outlet
English 7