Electric Connections; Electronic Board Lay-Out In The 9135 Transmitter Enclosure - Hach POLYMETRON 9135 Operator's Manual

Transmitter 9135 – pH/redox measurement
3.

Electric connections

Electronic board lay-out in the 9135 transmitter
enclosure
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Fig. 3.1 Electronic board lay-out
1. Terminal block 4-20 mA
2. CPU board
3. RS485 board (option)
4. Relay board (option)
5. pH module
6. Programmed EEPROM
7. Program update connector
8. Power supply board
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