Hach AF7000 SCM Manuel D'utilisation De Base page 11

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Figure 3 Optional connections
1 Modbus (RS485) card or alarm relay card (optional)
2 4–20 mA PID controller card or alarm relay card
(optional)
3 4–20 mA Process Output controller card or digital
input card (optional)
Connect to devices
Electrical shock hazard. Externally connected equipment must have an applicable country safety
standard assessment.
4 Autoflush card (optional)
5 High voltage barrier
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English 11

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