Hach sc100, User Manual

Page: 18 / 64

18
Installation
The DC power source that supplies power to the 24 VDC powered sc100 must maintain
voltage regulation within the specified 24 VDC –15% +20% voltage limits. The DC power
source must also provide adequate protection against surges and line transients.
Figure 13 sc100 Wiring Connections
Table 2 AC Power Wiring Information (sc100 AC powered model only)
Terminal Number Terminal Description Wire Color Code for North America Wire Color Code for Europe
1 Hot (L1) Black Brown
2 Neutral (N) White Blue
3 Protective Earth (PE) Green Green w/yellow tracer
Table 3 DC Power Wiring Information (sc100 24 VDC powered model only)
Terminal Number Terminal Description Wire Color Code for North America Wire Color Code for Europe
1 +24 V dc Red Red
2 24 V dc return Black Black
3 Protective Earth (PE) Green Green w/yellow tracer
1. J1—Network connector 8. Sensor connector
2. J2—Header for optional network interface card 9. Sensor connector
3. J5—Relay A connector 10. J6—Analog output (4–20 mA) connector
4. J6—Relay B connector 11. J5—Sensor connector for hard-wiring
5. J7—Relay C connector 12. Position for network interface card
6. Fuses (F1, F2) 13. Service port
7. J8—Power connections 14. Sensor terminator selector/service port configuration
a. AC Power connection (AC powered sc100 model only)
b. DC Power connection (24 VDC sc100 model only)
NC NC NC
COM COM COM NO
F1 F2
NO NO
RELAY C RELAY B RELAY A
J1
J2
J4
NETWORK
INTERFACE
CARD
J3
J5
J6
U5
U9
S1
6
7
7a
7b
14
12
13
3 1 2
8 9
4 5
11 10
+24
VDC
+24 VDC
–24
VDC
–24 VDC