Control Board; Step 3 Ground 5X00 - YSI MultiDO 5400 User Manual

2. Tighten bulkhead fittings after connecting all 5X00 wiring. (Hand tighten
fittings around rubber grommet. Tighten bulkhead fittings into 5X00 en-
closure with wrench being careful to not overtighten.)
3. Follow information in Sealants, Desiccants and Securing the Monitor Section
- page 69 to safeguard against damage to internal electronic components.
4. Make certain the gasket in front panel lid is in place and not twisted or
damaged.
5. Replace front panel making sure that ribbon cable is not trapped in the gasket
channel before inserting mounting screws.
6. Tighten mounting screws, making sure not to cross thread. The screws are
stainless steel, and the receiving threads are brass. Do not over-tighten!
WARNING: The 5X00 utilizes sensitive solid-state devices that can be damaged
by static shock. Installers must observe accepted ESD (Electro-Static Discharge)
procedures while connecting cabling to the 5X00 I/O plate or to any other internal
component or damage may result.
AVERTISSEMENT : le modèle 5X00 utilise des appareils transistorisés sensibles
pouvant être endommagés par des décharges d' é lectricité statique. Les installateurs
doivent observer les procédures de protection acceptées contre les décharges
électrostatiques lors du câblage à la carte d'E/S du modèle 5X00 ou à tout autre
composant interne afin d' é viter tout risque de dommage.

Control Board

The control board is mounted underneath the I/O Board. The serial to ethernet
device and lithium battery are installed on the control board. Complete installation
instructions, including accessing control board, are provided with the optional serial
to ethernet device. Figure 3.15 shows the control board and I/O Board removed
from the 5X00 enclosure.
Installation and Wiring
YSI 5X00
42
Figure 3.15

Step 3 Ground 5X00

: Ground the 5X00 to avoid possible electrical shock or damage to
WARNING
the equipment.
AVERTISSEMENT : mettez le modèle 5X00 à la terre afin d' é viter tout risque de
choc électrique ou d' e ndommagement de l' é quipement.
Ground the 5X00 at location G on the metal plate. The metal plate is attached to the
lower board assembly. Use locations E and F to ground the DO sensor ground/drain
wires - figure 3.16. (Common lettering references are used for both 5400 and 5500
models). Titanium ground rods can also be used to ground peripheral equipment.
In addition to grounding the 5X00, all tanks should be electrically grounded via a
ground probe.
Installation and Wiring
YSI 5X00
43