User Guide

Programming Battery Setup for the MPM
17-10
Voltage mode allows data recording during recharge, since data logging does not stop
until the voltage goes above the threshold. If measuring discharge current, use
Discharge Current Mode as a reliable source of trigger.
In current mode, the monitor triggers only on Current Channel 1 selected on
Setup|Battery|Parameters. To enable this mode, you must define the Current Channel on
the Setup|Battery|Parameters dialog box.
Report All Discharges - If selected, the monitor reports all discharges to the Central
computer. You must enable Remote Reporting on Setup|Battery|General.
Report Problem Discharge Only - If selected, the monitor reports only discharges that
exceed voltage or time values set in Problem Discharge Thresholds (described later) to the
Central computer.
Disable - If selected, stops the MPM from reporting a discharge.
Deviation Storage Thresholds Area - Log Threshold for Cell Voltage, Log Threshold for
OV (Overall Voltage), and Log Threshold for Current - When the voltage or current
changes by the amounts in these boxes, the event is recorded. For most applications, use
10mv for cell voltage, 100mv for overall voltage, and 1 amp for discharge current. Smaller
values could cause monitor memory problems. Do not set these values to 0. If set to 0, no
data will be logged during discharge. Refer to Data Storage in the MPM.
Problem Discharge Thresholds Area:
Low Cell Voltage, Low Overall Voltage, and Maximum Discharge Time - Select the
voltage or time levels that trigger discharge reporting. To enable these values,
select Report Problem Discharge Only on this screen. This setting also affects the bar
graph colors on the Cell Voltage String View screen. During a discharge, the bars change
color:
Normal Condition .......................................................................... Green
Problem Discharge Thresholds or Low Cell Voltage .................... Yellow
Time to Go Area:
The String View screen can display a Time to Go (TTG) number. When an MPM
discharge starts, the TTG box on String View indicates the estimated remaining time that
the battery can deliver power. To disable this feature, leave the Amp Hours and Peukert
Number boxes at zero.
IMPORTANT NOTE: The TTG Time to Go number is only an estimate.
Amp Hours - Type the amp hours of the battery at the 8 hour rating. To disable the
estimated time feature, set to 0.
Peukert Number - Type the Peukert number derived by using Peukert's equation. Refer
to Understanding the Time to Go Algorithm. To disable the estimated time feature, set
to 0.