Saft MRX Series User manual

Important recommendations
INever allow an exposed flame or
spark near the batteries,
particularly while charging.
INever smoke while performing
any operation on the battery.
IFor protection, wear rubber
gloves, long sleeves, and
appropriate splash goggles
or face shield.
IThe 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.
IRemove all rings, watches and
other items with metal parts
before working on the battery.
IUse insulated tools.
IAvoid static electricity and take
measures for protection against
electric shocks.
IDischarge 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.
IMake sure all items have been
received by comparing with the
packing list.
ICheck for damage or electrolyte
spillage. Report any irregularities
to the carrier and Saft.
INever 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).
MRX Ni-Cd batteries
Installation and operating instructions
IMake sure that the plastic
strapping and front plates remain
in place during storage (for blocks
delivered without metallic frames).
IDo not expose to direct sunlight or
excessive heat.
IBattery 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.
IBlock battery directly fitted inside a
battery box.
IBlock 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.
IBlock 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
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 C5 Afor 8 h
b) charge at constant voltage:
1.55 V/cell for 20 h with the
current limited at 0.2 C5 A
Charge at constant current is
recommended.
The battery is ready for use.
October 2010

Table A:
Rated Charge
Cell type capacity current
Ah Amp
to +86°F), the charge voltage
correcting factor is:
– 3 mV/°C/cell (– 1.7 mV/°F/cell)
if the charging voltage is ≥1.45 V
at +20°C (+68°F)
For any other charging voltages,
consult Saft.
To minimise the water
consumption, Saft recommends
the use of low charging voltage.
7. Topping-up
Before topping up operation, the
water filling circuit of the battery
must be checked for tightness (no
leaks) using a pressure test (a kit
may be supplied by SAFT).
Use only distilled and deionized
water for topping-up.
Connect distilled water tank to the
self-closing inlet.
Topping-up is completed when an
excess of 1 litre of water is measured
at the outlet of the water filling circuit.
Topping-up can be performed by
Saft's gravity kit or by using Saft's
water filling stations.
8. Periodic maintenance
In addition to the topping-up,
a periodic maintenance shall be
carried out at least every 5 years.
For detailed maintenance, please
refer to the maintenance manual of
the battery.
IKeep the battery clean using only
water. Do not use a wire brush or
solvents of any kind.
ICheck torque of all terminal
screws. Coat with grease approved
by Saft or neutral vaseline all
terminal screws and connections.
ICheck charger settings. It is very
important that the recommended
charging voltage remains
unchanged. High water
consumption by the battery is
usually caused by improper voltage
setting of the charger.
IFrequency of topping-up must be
determined for each battery.
Topping-up shall be performed
every 6 months during the first
year in order to determine the
ideal topping-up interval (generally
every 2 years). It depends on the
charging voltage and actual use of
the battery. Refer to section 7
concerning topping-up.
9. No change of electrolyte
required
Thanks to the sintered/plastic
bonded electrode technology, it is not
necessary to change the electrolyte
during the life of the battery.
10. Recycling
To protect the environment, all used
batteries must be recycled. Contact
your local Saft representative for
information.
5.2. Discharged block battery
stored more than 1 year:
a) charge at 0.2 C5Afor 10 h
b) discharge at 0.2 C5Adown to
1.0 V/cell
Between discharge and the
following charge, the battery must
be kept in open circuit for
8 hours or battery temperature
down to ≤+30°C (≤+86°F).
c) charge at 0.2 C5Afor 8 h
The battery is ready for use.
5.3. Charged block-battery (80%)
shipped and stored at temperatures
below +30°C (+86°F), less than
3 months from date of charge:
the battery is ready for use.
5.4. Charged block-battery (80%)
shipped and stored at temperatures
above +30°C (+86°F) or stored more
than 3 months from date of charge:
a) charge at 0.2 C5Afor 10 h
b) discharge at 0.2 C5Adown to
1.0 V/cell
c) charge at 0.2 C5Afor 8 h
The battery is ready for use.
6. Charging in service
IOn-board application (railway)
The battery is cycled up to 20%
Depth Of Discharge (DOD) per day.
•Single level charge:
1.45 to 1.55 V/cell at +20°C (+68°F)
1.47 V/cell is recommended
IStationary application
The battery is on float and discharged
only in case of emergency.
•Single level charge:
1.41 to 1.43 V/cell at +20°C (+68°F)
•Dual level charge:
- High level: 1.43 to 1.50 V/cell
at +20°C (+68°F)
- Float level: 1.38 to 1.40 V/cell
at +20°C (+68°F)
IVoltage compensation
For use at temperature range
outside +10°C to +30°C (+50°F
Saft
Industrial Battery Group
12, rue Sadi Carnot
93170 Bagnolet - France
Tel: [phone]
Fax: [phone]
www.saftbatteries.com
Doc N° 21119-2-1010
Data in this document is subject to change without
notice and becomes contractual only after written
confirmation.
Société anonyme au capital de
31 944 000 €
RCS Bobigny B 383 703 873
Pragma - Printed in France - 2k
MRX Ni-Cd batteries
MRX 70 70 14
MRX 80 80 16
MRX 90 90 18
MRX 100 100 20
MRX 115 115 23
MRX 130 130 26
MRX 145 145 29
MRX 160 160 32
MRX 180 180 36
MRX 200 200 40
MRX 230 230 46
MRX 260 260 52
MRX 280 280 56
MRX 300 300 60
MRX 350 350 70
MRX 400 400 80
MRX 460 460 92
MRX 520 520 104