Hach-Lange HACH 9523 - Manual (Page 12)

Hydraulic connections
Figure 4 Hydraulic connections
1 Degassing valve 4 Sample input - tubing 6 mm (standard) or 1/4 inch
(with adapter)
2 Sample flow adjustment valve 5 Cationic resin cartridge
3 Sample output - tubing 12 mm or 1/2 inch
1. The sample input and output connections use flexible tubing according to the following
specifications:
• Diameter: as specified above
• Material: polyethylene or PTFE or FEP
• Pressure: 0.2 to 6 bars (3 to 90 psi)
• Temperature: 5 to 50 °C (40 to 120 °F)
• Flow rate: 5 to 12 L/h
Insert the tubing into the quick release connections under the flow chamber block (positions 3 and
4 in
Figure 4 )
Electrical installation
For all wiring connections, including power, alarms, relays and analog outputs, refer to the controller
documentation for instructions.
Analyzer startup
1. Open the degassing valve.
2. Open the sample flow adjustment valve and ensure everything is watertight and there are no
leaks.
3. Close the degassing valve when the measuring cell is free of air.
4. Set the sample flow to the required rate (between 5 and 20 L/h).
5. Pass about 10 liters of sample through the resin to thoroughly rinse it and prepare the analyzer
for measurements.
10 English