Hach Sigma 950, Основное руководство пользователя

Страница: 17 / 100

• Alarm Relay port —Connect to external devices, such as horns or lights. Use an alarm relay cable
assembly (6-pin connector on one end and tinned wire leads on the other end) to make the
connection. Refer to
Table 12 and Table 13 .
Table 10 Modem port wiring
Pin Wire color Description Pin Wire color Description
A Red Tip C — 12 VDC
B Green Ring D — 12 VDC reference
Figure 6 RJ11-style modular connector adaptor with cover removed
1 Modem cable assembly (2862) 3 Red wire
2 Green wire 4 RJ11 style adaptor (3188)
Table 11 4–20 mA port wiring
Pin Description Wire color Pin Description Wire color
A Output A + Yellow C Output B + Red
B Output A – Black D Output B – Green
Table 12 Alarm Relay 1 and 2 wiring
Pin Description Wire color Pin Description Wire color
A Relay #1 normally open Green D Relay #2 normally open Green
B Relay #1 common Black E Relay #2 common Black
C Relay #1 normally closed White F Relay #2 normally closed White
Table 13 Alarm Relay 3 and 4 wiring
Pin Description Wire color Pin Description Wire color
A Relay #3 normally open Green D Relay #4 normally open Green
B Relay #3 common Black E Relay #4 common Black
C Relay #3 normally closed White F Relay #4 normally closed White
English 17