MP73P+ : Battery charger/analyser
Operators Manual
3 Cell Monitor Interface
3.1
General
The MB73P+ battery charger analyser has built in support for the cell-monitoring
interface (TH20).
This allows the monitoring of NiCd batteries of up to 20 cells and is only available for
units that have firmware issue 3.0 or higher installed.
For upgrade details please contact Intelligent Charging Limited or your local reseller.
With the cell-monitoring interface connected two additional capacity test options
become available and one additional charge option.
When the cell monitor is in use two additional displays can be selected by pressing
‘B’
or
‘C’
keys on the keypad while the unit is running. Pressing
‘A’
key will return the
display back to the default display.
‘A’
Default display.
This is the conventional display which all modes of operation use.
‘B’
A textual list of cell voltages.
This display will show all 20 cell voltages being measured as a simple list.
‘C’
A graphical bar graph.
This display will show all 20 cell voltages being measured a graphical bar graph,
which will show the inter-relationship between each cell. Also displayed is a line
representing the target voltage. The battery voltage and charge of capacity test
current highest cell voltage, lowest cell voltage and the "cell focus" voltage are
shown in text format. By using the left and right arrow keys on the keypad a
highlight marker can be moved across each cell so that if one particular cell
voltage needs to be monitored it will be displayed by the right of the bar graph.
By pressing
‘0’
and either
‘
’
or
‘
’
keys simultaneously will cause the 1.0V
display window to be shifted up or down the 2.0V range.
The cell monitor is supplied as an interface unit with 21 patch lead connection for
connecting to batteries via individual clamps. It has a connector fitted to it where
“crown” assembly can be plugged in. The “crown” arrangement is placed onto the top
of the battery with contact to the cells made via stainless test pins. The “crown”
arrangement is manufactured to suit one style of battery. If many different styles of
batteries are in use a “crown” will be required for each battery.
The cell monitor prior to firmware revision 5.08 notes cells by default in the order of cell
1 being the negative end of the battery, whereas 5.08 and higher firmware defaults to
cell 1 being the cell at the positive end of the battery. The state of this condition can be
swapped over by going to the cell monitor settings and changing the CELL DIRCT.
There are two options "Cell #2 is negative " or "Cell #1 is positive" Confirmation of the
current setting is also included on the cell printout and voltage monitor screens.
Doc: DWG1042-12-R18 MB73P+ Operators manual.odt
Page 12 of 64
Copyright Material of Intelligent Charging Limited © 2020
Printed On : 29/11/20
