Hach-Lange POLYMETRON 9523 Basic User Manual - Manual (Page 17)

Figure 5 Analog output connections
Connect the optional digital communication output
The manufacturer supports Modbus RS485, Modbus RS232, Profibus DPV1 and HART
communication protocols. The optional digital output module is installed in the location indicated by
item 4 in
Figure 4 on page 11. Refer to the instructions supplied with the network module for more
details.
For information about Modbus registers, go to
http://www.hach-lange.com or http://www.hach.com
and search Modbus registers or go to any sc200 product page.
Plumb the sample and drain lines
After the panel is attached to a wall, connect the sample and drain lines to the fittings on the panel.
Make sure that the tubing meets the
Specifications on page 3. Refer to the steps that follow and
Figure 1 on page 7.
1. Insert the sample tubing into the input quick-connect fitting under the flow chamber ( Figure 1
on page 7).
2. Connect a drain line to sample output fitting. Keep the drain line as short as possible to prevent
back-pressure.
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.
User interface and navigation
User interface
The keypad has four menu keys and four directional keys as shown in Figure 6 .
English 17