Open Front Panel To Access I/O And Rem Board; Close Front Panel; Step 2 Ground Ioem And Rem; Directions To Ground Ioem And Rem - Xylem YSI IOEM Safety And Installation Manual

Open Front Panel to Access I/O and REM Board

WARNING: Disconnect external power to the unit before doing any wiring.
AVERTISSEMENT : déconnectez l'alimentation externe de l'unité avant
d' o uvrir le panneau avant.
1. Loosen the 4 mounting screws connecting the front panel to the back
enclosure. Captive screws remain in front panel after loosening.
2. Unhinge the front panel by lifting the latch up so the hinge is released
from the front panel. The rubber gasket seated in the front panel should
remain in the front panel lid.

Close Front Panel

1. Verify all installed components and peripheral equipment have secure
connections and that there are no bare wires that could cause a short
inside the enclosure.
Tighten bulkhead fittings after connecting all wiring. (Hand tighten fit-
2.
tings around rubber grommet. Tighten bulkhead fittings into enclosure
with wrench being careful to not overtighten.)
3. Follow information in Sealants, Desiccants and Securing the Monitor
Section - page 66 to safeguard against damage to internal electronic
components.
4. Make certain the gasket in the front panel lid is in place and not twisted
or damaged.
5. Tighten mounting screws, making sure not to cross thread. The screws are
stainless steel, and the receiving threads are brass. Do not over-tighten!
CAUTION: The IOEM and REM utilizes sensitive solid state devices that can
be damaged by static shock. Installers must observe accepted ESD (Electro-
Static Discharge) procedures while connecting wires to the IOEM and REM
control board.
ATTENTION : les modèles d'IOEM (module d'expansion d'entré et de sortie)
et de REM (module d'expansion de relais) utilisent des appareils transistorisés
sensibles pouvant être endommagés par des décharges d'électricité statique.
Les installateurs doivent observer les procédures de protection acceptées contre
les décharges électrostatiques lors du câblage à la carte de l'IOEM et du REM.
IOEM/REM Safey and Installation Guide
Installation and Wiring
32

Step 2 Ground IOEM and REM

WARNING
: Ground the IOEM and REM to avoid possible electrical shock or
damage to the equipment.
AVERTISSEMENT : mettez le modèle IOEM and REM à la terre afin d'éviter
tout risque de choc électrique ou d'endommagement de l'équipement.
Ground the IOEM at location F on the metal plate. Ground the REM at location
G on the metal plate. Other IOEM and REM system components can be grounded
at these same locations. Titanium ground rods can also be used to ground peripheral
equipment.
In addition to grounding the IOEM and REM, all tanks should be electrically
grounded via a ground probe.

Directions to Ground IOEM and REM

WARNING: Disconnect external power to the unit before wiring.
AVERTISSEMENT : déconnectez l'alimentation externe de l'unité avant
d'effectuer un câblage quelconque.
1. Perform step 1 of IOEM and REM installation.
2. Open front panel - page 32.
Remove screw from location F (IOEM)/G (REM).
3.
4. Feed ground wire through drilled hole in rubber grommet and to location
F (IOEM)/G (REM) on metal plate. Ground wire gauge must conform
to all locally applicable electrical codes.
5. Install a ring (eyelet) or spade (fork) terminal onto the ground bare wire
before terminating ground wire to ground location.
Return screw at F (IOEM)/G (REM) over terminal connection of ground
6.
wire.
CAUTION
: Run high and low voltage cables through separate bulkhead and
conduit.
IOEM/REM Safey and Installation Guide
Installation and Wiring
33