Saft MRX Series Installation And Operation Instructions

MRX Ni-Cd batteries
Installation and operating instructions
Important recommendations
I Never allow an exposed flame or
spark near the batteries,
particularly while charging.
Never smoke while performing
I
any operation on the battery.
I For protection, wear rubber
gloves, long sleeves, and
appropriate splash goggles
or face shield.
I The electrolyte is harmful to skin
and eyes. In the event of contact
with skin or eyes, wash
immediately with plenty of water
for a minimum of 15 minutes.
If eyes are affected, flush with
water, and obtain immediate
medical attention.
I Remove all rings, watches and
other items with metal parts
before working on the battery.
Use insulated tools.
I
Avoid static electricity and take
I
measures for protection against
electric shocks.
I Discharge any possible static
electricity from clothing
and/or tools by touching an
earth-connected part "ground"
before working on the battery.
1. Receiving the shipment
Unpack the battery immediately
upon arrival. Do not overturn the
package. Generally MRX batteries
are shipped discharged and filled
with electrolyte. An accessory kit
should also be included.
Make sure all items have been
I
received by comparing with the
packing list.
I Check for damage or electrolyte
spillage. Report any irregularities
to the carrier and Saft.
I Never operate the battery with
coloured transport seals inserted
on the outlet and inlet of each
module as this will damage
permanently the battery.
2. Storage
Store the battery indoors in a dry,
clean, and cool location (0°C to
+30°C / +32°F to +86°F).
I Make sure that the plastic
strapping and front plates remain
in place during storage (for blocks
delivered without metallic frames).
I Do not expose to direct sunlight or
excessive heat.
I Battery delivered discharged may
be stored for many years before
installation. For battery delivered
charged (80%) please refer to
5.3 and 5.4.
3. Installation
Remove the transport seals.
3.1. Battery configuration varies
depending on the requirement.
I Block battery directly fitted inside a
battery box.
I Block battery to be installed by
customer in battery box designed
by Saft. In this case, the block
battery is delivered with two front
plates and plastic strapping used
for shipment and handling. Front
plates and plastic strapping must
be removed just before battery
installation. Don't remove the front
plates and plastic strapping if the
battery is stored.
I Block battery to be managed
directly by the customer. In this
case the block batteries are
delivered in light self-keeping
cradles. Never remove this
assembly.
3.2. Verify that cells are correctly
interconnected and battery is
correctly connected to the load.
3.3. Check torque of terminal
connecting screws.
Torque must be: 10 ± 2 N.m
Connections and terminal screws
must be protected against corrosion
by coating with a thin layer of
neutral vaseline or anti-corrosion oil
agreed by Saft.
4. Water filling system installation
Remove transport seals and connect
hydraulic tubing between block
battery according to the battery
October 2010
drawing delivered by Saft. Saft's
Water Filling Systems follows specific
rules, please respect carefully Saft's
battery drawing for installation.
Make sure that the pipes are
completely inserted to ensure a
good tightness.
Hydraulic connection of cells is in
parallel to the electrical connection
in order to avoid voltage differences
of more than 1.2 V between two
cells connected by this method.
The hydraulic connection must be
horizontal in order to avoid any
siphon.
The water filling circuit outlet must
not be located close to electrical
equipment, and electrical circuit or
metallic structure.
Water filling circuit input must be
connected to the self-closing inlet.
When installed, check the water
filling circuit for continuity
(no obstruction) and tightness
(no leaks) using a pressure test
(a kit may be supplied by SAFT).
5. Commissioning
Caution: during constant charging
operations, the battery box must be
open.
5.1. Discharged block-battery put
into operation immediately after
delivery or after less than one year
of storage:
a) charge at constant current:
at 0.2 C A for 8 h
5
b) charge at constant voltage:
1.55 V/cell for 20 h with the
C
current limited at 0.2
5
Charge at constant current is
recommended.
The battery is ready for use.
A