Mori Raddrizzatori MICRO-TECH-A series Instructions

IINTRODUCTION
Your rectifier is fully controlled by a microprocessor and is suita-
ble for automatic recharging of lead batteries. The recharging cycle
is Wa (decreasing current). For best results and safety, the user is
required to read, follow and keep these instructions carefully . This
device is to be used exclusively for recharging lead batteries of the
voltage and capacity indicated in the paragraph entitled BATTERY.
The manufacturer is not responsible for any damage due to improp-
er use. This device is designed for use only in environments that are
protected from any atmospheric disturbance.
BATTERY
This rectifier should be used to charge batteries that have the fol-
lowing characteristics:
• battery type: lead, unsealed
• rated voltage: see rating data on rectifier (e.g. 12V)
• capacity: the optimum value can be calculated on the basis of
rated rectifier current In (see rating plate): C = In x 6
Example: In = 30A capacity will be C = 180 Ah +/- 10%
INSTALLATION
To ensure maximum safety, the installation has to be carried out
as indicated by the manufacturer. Installation and any work on the
rectifier must be carried out by qualified technical personnel. Install
only after disconnecting the supply cable from the mains power
supply and the output cables from the battery. After unpacking, as-
certain that the device is in perfect condition. In case of doubt, do
not use the device and contact the supplier. Install the rectifier in a
protected place; do not install it:
• outdoors or in open sheds
• in any damp or dusty place or in presence of acids.
• in any place with temperatures below 0 and above 40° C (32 and
104°F)
• in any place that is in any way unsuitable for electronic devices.
Do not obstruct the ventilation apertures. Do not place against a
wall (leave at least 10 cm all around). Do not cover during operation.
POWER SUPPLY
Ascertain that the rating plate values are compatible with your mains
power supply (voltage, frequency, power). Plug it into a tap that is
equipped with protection that complies with standard regulations.
If you have to use an extension cable, contact the manufacturer for
correct technical information. The supply cable must be replaced
only by qualified personnel.
BATTERY CHARGER INDUSTRY s.r.l.
via Pietro Nenni 17/19 Colombare di Sirmione (Brescia) Italia - Tel: +39 030 990 60 10
INSTRUCTIONS
MICRO-TECH-A series
INITIAL CALIBRATION
To adapt the rectifier to the normal variations of voltage in the mains
power supply (±10% with respect to the rated value) open the rec-
tifier (see Fig. 1) and move the BLUE wires on the terminal to the
correct position shown on the table.
This operation is fundamental for correct operation and should
be performed only when installing the rectifier.
CONNECTION TO BATTERY
When connecting to the battery respect polarity (red wire to +, black
wire to -). Incorrect connection will immediately blow fuse F2 inside
the rectifier. This will have to be replaced with another fuse (see Fig.
1) of the same value.
SWITCHING ON (PAN. 1)
Connect the rectifier to the battery: four LEDs will light up for 2
seconds only. If that doesn't happen, check either fuse F2 inside the
rectifier and the battery connection. If everything is OK, PHASE 1
begins. Otherwise, check input fuse F1 (see Fig. 1).
PHASE 1 (PAN. 2)
This is the first recharging phase. The rectifier supplies current to
the battery and battery voltage increases. The PHASE 1 LED lights
up to show exactly which phase is active and also in order to show
that the rectifier is supplying current. The initial value of the current
(with the battery completely discharged, 2 V/el) is the same as the
rated value of the rectifier and will tend to decrease over time. With
partially discharged batteries the current is lower. When the voltage
in the battery reaches 2.40 V/el (gasification) the microprocessor
activates PHASE 2 (normally within 6 - 8 hours).
STOP PHASE 1 (PAN. 3)
If the battery voltage does not reach 2.40 V/el within 9 hours the mi-
croprocessor interrupts charging and the first 3 LEDs start to flash
(except for LED 'E'). This may happen because of a problem with the
battery (too old or with a broken element) or because of a problem
with the power supply. This situation indicates an existing
anomaly. If it happens often, inform the supplier.
PHASE 2 (PAN. 4)
This phase is also called the final phase, and enables the battery to
be 100% recharged. The microprocessor calculates the time nec-
essary (minimum 15 min, maximum 3 hours), depending on the
behaviour of the battery.
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