Hach SP-510 Basic User Manual page 15

The relay connector accepts 18–12 AWG (0.75–1.0 mm
operates with the application. A wire gauge less than 18 AWG (0.75 mm
Figure 11 Alarm connections
Terminal block
J7
Install the buffer solution
Buffer solutions are formulated at the factory and are ready to install without preparation. Put the
bottle in the instrument as shown in
manufacturer's website.
Install the indicator solution
Indicator solutions are formulated at the factory and are ready to install without preparation. Put the
bottle in the instrument as shown in
manufacturer's website.
Figure 12 Install the buffer and indicator reagents
1 Indicator reagent tube label and bottle
Table 2 Relay wiring
Terminal 1
COM Normally open (NO)
Figure 12 on page 15. Additional information is available on the
Figure 12. Additional information is available on the
2
) wire. Select the necessary wire gage that
2
Terminal 2
2 Buffer tube label and bottle
) is not recommended.
Terminal 3
Normally closed (NC)
English 15