Hach FL1500, Руководство пользователя

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Connect to the relays
D A N G E R
Electrocution hazard. Do not mix high and low voltage. Make sure that the relay connections are all
high voltage AC or all low voltage AC.
W A R N I N G
Fire hazard. Relay loads must be resistive. Always limit current to the relays with an external fuse or
breaker. Obey the relay ratings in the Specifications section.
Use the relay connections to start or stop an external device such as an alarm. Use wire that is rated
for 300 V. Use a minimum wire gauge of 18 AWG. Make sure to obey the relay connection
requirements in
Specifications on page 3. Make sure to have a second switch available to remove
power from the relays locally if there is an emergency or for maintenance.
1. Remove the power to the instrument.
2. Open the access door. Refer to Open the access door on page 12.
3. Remove the high-voltage barrier.
4. Put the cable through a strain relief fitting near the relay connectors.
5. Strip the wires to 7 mm (0.275 inch).
6. Install each wire in the connector. Refer to Figure 14 and Table 9 .
7. Install the high-voltage barrier.
8. Tighten the cable strain relief.
9. Install the access door.
Figure 14 Relay connections
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