10. Set the jumpers in the new QML data logger as they were in the old QML data logger.
Figure 7 Jumper Locations for DSI486
1 Pin 1
2 Pin 2
3 Pin 3
11. Install the new QML data logger on the DIN rail.
12. Insert the pressure tube to the nozzle in the lower right corner of the new QML data
logger.
13. Insert the connectors to the new QML data logger.
To have more slack in the wiring, you may need to cut the cable ties holding the wires.
To avoid damaging the wiring, do this from the bottom side of the installation plate.
14. Replace the cut cable ties with new ones.
15. Restore the station parameters.
16. Verify that the communication modules are functional.
17. Verify that the correct
configuration is loaded in the QML data logger.
More Information
‣
Backing Up Station Parameters (page 41)
‣
Restoring Station Parameters (page 42)
5.6.10
Changing DSI486 Communication Mode
Each DSI486 communication module has 2 isolated RS‑485 lines (channels A and B), one of
which can be configured for RS‑232 use. To select the communication mode, wire the I/O
pins correctly and modify the jumper settings of the communication module.
Chapter 5 – Maintenance
97
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