Campbell-scientific OBS-3A Turbidity and Temperature Monitoring System Manual do Utilizador descarregar pdf (Página 58)

OBS-3A Turbidity and Temperature Monitoring System

FIGURE 8-1. Component locations

Unit does not communicate with PC.

There are several possible causes for this symptom.

1. The test/umbilical cable is damaged or improperly connected.

2. The OBS-3A is sleeping and will not wake up.

3. The batteries are dead.

4. The OBS-3A and PC are not set to the same baud rate or communication

protocol (RS-232, USB, RS-485).

a. Click and check COM port settings on the Connection tab. The

default baud rate is 115.2 kB. If the PC is not set to this speed, follow

the steps in Section 6.7, Connection, to set it.

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Campbell-scientific OBS-3A Turbidity and Temperature Monitoring System Manual do Utilizador Página 58