4 (30)
Document no.
99-99-111
Version
6
Date
2003-10-16
Sign.
ToNo
1 INTRODUCTION
1.1 About this description
These instructions are aimed primarily at trained staff and describe how to handle a
standard MTM in a standard application.
For special areas of application, such as AGV charging, please see separate documents,
which describe the charge curves and functions used in these special cases.
1.2 Installation and commissioning
See the user manuals for the respective chargers. The charger is normally supplied set
for the battery type indicated in the order.
1.3 General information on MTM
Charger type MTM is a fully automatic charger designed for charging all types of
battery with a system voltage from 12 V up to the charger’s rated voltage, and with great
variations on ampere-hours.
This charger is able to charge and provide constant trickle charging of both tractionary
and stationary batteries. Charging can be optimised for every type of battery and all
kinds of operating conditions. With the guidance of a programmed charge curve, the
charger’s computer constantly calculates the optimum charge power and monitors
charging from start to finish.
Voltage, current, charged Ah, charging time, etc. can be viewed in the display using the
keyboard.
Faults are indicated by means of one or more flashing LEDs, as well as error messages
in the display.
The MTM comes with a real-time clock with battery backup which indicates the precise
setting of delayed charging, weekly charging, etc. Important events such as the start of
charging and abnormal cutoffs are logged with a time stamp, which facilitates later
servicing.
Statistics for the last five charges and information on the battery’s operating profile are
stored in the memory. With the guidance of this information, it is possible over time to
implement actions to minimise the risk of repeated deep discharges, etc. which may
damage the battery in the long term.
The MTM is supplied with predefined charge curves for the most common freely
ventilated and sealed battery types.
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