3-2. access to terminal and cable entry, 3-2. access to terminal and cable entry -6, High voltage compartment – Yokogawa DO402 Dissolved Oxygen Analyzer User Manual
Page 26
IM 12J05D02-01E
3-6 Installation and wiring
3-3-2. Access to terminal and cable entry
Terminals 1 and 2 on the bottom terminal strip are used for the power supply. Guide the power cables
through the gland closest to the power supply terminals. The terminals will accept wires of 2.5 mm
2
(14
AWG). Use cable finishings if possible.
Connect the wires as indicated in the wiring diagram (refer to figure 3-6).
High Voltage Section
A
B
C
D
E
F
D
E
F
CONT
ACT (S3, S4/FAIL)
OUTPUT CABLE (S)
CONT
ACT (S1, S2)
OUTPUT CABLE (S)
POWER CABLE
A
B
C
POWER CABLE
for DO70G or
COMMUNICATION
INPUT CONTACT
SENSOR CABLE (S)
ANALOG OUTPUTS
CABLE
Suitable for cables with an outside diameter between 6 - 12 mm (0.24 - 0.47 in.)
Figure 3-7. Glands to be used for cabling
71
S4
S3
S2
S1
C NC NO
72 73 51 52 53 41
43 31
33
42
32
FUSE
100
115
230
250VAC; T
3
1
2
C NC NO C NC NO C NC NO
VAC
VAC
VAC
200 mA
200 mA
100 mA
Relay Contacts
Power Supply
12
13
15
16
63 66 65 62 61 95 94 93 92 91
SCREEN
mA2
mA1
SCREEN
TL
TL
17 11
Sensor Inputs
mA Outputs
Digital
Communications
Contact
Input
CONT SENSOR mA OUTPUT RS485
14
22
21
- - - optical sensor and polarographic sensor galvanic sensor
High voltage compartment
G N L
18
Liquid
earth
Shield
Temp
SCREEN
99
SCREEN 2
23
250VAC
5A
100VA
250VDC
5A
50W
Figure 3-8. Input and output connections