Step 5 Wire Sensor(S); Wire Do Sensors; Directions To Wire Do Sensor(S) - YSI MultiDO 5400 User Manual

B C
F
G
L
N
M
Figure 3.18
5. Complete other wiring to 5X00.
6. Close front panel - 41.
7. Test DC power.
Test DC Power
Connect DC power cable to power source. The enabled system values will display
on Run Screen after initial YSI splash screen. Verify DC power at the Menus →
System →Version menu - page 148.
See Power Fail Menu - page 138 for DC low battery trigger monitor and alarm
information.
Note:
- The 5X00 will not power up if DC power supply wires are terminated incor-
rectly.
Installation and Wiring
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J
O
YSI 5X00
48

Step 5 Wire Sensor(s)

Depending on the 5X00 model, up to four DO sensors and four temperature sensors
can be wired to the 5X00. All sensors are wired to the I/O Board - figure 3.19 and
3.19a. Use location E or F on metal plate to ground the DO sensor ground/drain
wires. (Common lettering references are used for both 5400 and 5500 models). Fol-
low the wiring instructions below to ensure proper sensor operation.
YSI probe assembly 5421 has one galvanic DO sensor and one temperature sensor.
5400
YSI probe assembly 5420 has one galvanic DO sensor. The probe assemblies are
shipped bare wire. YSI 5421 and has five wires. Two wires are for the DO sensor and
are terminated at location H on the I/O board. Two wires are for the temperature
sensor (YSI 5421) and are terminated at location L on the I/O board. Terminate the
fifth wire (ground/drain wire) to location E or F of metal plate. The YSI 5420 probe
assembly has three wires for the DO sensor and does not include any temperature
sensor wires.
ODO probe assemblies have five wires. Four ODO sensor wires are terminated at
5500
location H. Terminate the fifth (ground/drain wire) to location E or F of metal plate.
Complete directions and wiring diagram are provided at step 4 (5500) - page 50.
The ODO probe is a digital device and includes a temperature sensor.

Wire DO Sensors

Directions to Wire DO Sensor(s)

WARNING: Disconnect external power to the unit before wiring.
1. Perform steps 1 - 4 of 5X00 installation.
2. Open front panel - page 41.
3. Feed DO cable through drilled hole in rubber grommet to location H. The
terminal strip is removable.
CAUTION: Run high and low voltage cables through separate bulkhead and
conduit.
4. Terminate the DO sensor wires for the DO1, DO2, DO3, and/or DO4
5400
system(s). Wire the DO sensor cathode wire to (+) terminals and the DO
sensor anode wire to (-) terminals. Follow the coloring scheme described
below when wiring the DO sensor.
•
YSI 5420 & 5421 galvanic DO sensor wires are white and black.
-Terminate white wire to "C Galvanic".
-Terminate black wire to "A Galvanic".
-Terminate bare ground/drain wire to E or F on metal plate.
Installation and Wiring
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