Pro-Trak checks for a voltage from the pack before charging or discharging, if the pack is not connected or if the pack is connected the wrong way round then a message Check pack connected is given.

Pack Match (remote leads must be fitted)

At the end of discharge, Pro-Trak calculates the pack match and the match of each individual cell. Pro-Trak will then display the Pack match and the match of the worst cell in the pack.

Pack Match 97%

If you need to see the values for all the cells, step down to pack match in the view menu and press 0.

Pack match is very useful for keeping track of your nicad packs and gives a very good measurement for the condition of your packs. This assessment is made after discharge.

When discharging to 6 volts for the pack (1 volt per cell), if all the cells are at 1 volt at switch off then the pack match is 100%

Note: The lower you set the cut-off volts the worse the pack match will be. It is very difficult to get a pack to discharge to 5.70 volts where all the cells are at 0.95 volts at switch off. This is because at 0.95 volts the cell is almost completely flat.

It is difficult to get a pack match if the cutoff is set below 6 volts

Pack Assessment  (remote leads must be fitted)

After discharge Pro-Trak calculates the match of the pack and each individual cell. This is displayed at the end of discharge.

Pack Match 97%

Cell 3 Worst 93%

This is very useful in keeping track of your nicads, as it indicates which cell if any, is not as good as the rest. If the display shows:- Cell 0 Worst then there is a cell in the pack that is very poor and an assessment of the pack can not be made.

If you set the discharge cut-off to 6 volts and discharge a pack to find out what was left in it, Pro-Trak would stop discharging at 6 volts and display the time. If you then wanted to know how much time was left from 6 volts to a complete dump (5.7volts for a 6 cell pack) then you would have to set the discharge cut-off to 5.7volts and discharge the pack again to find the time left from 6 volts to 5.7 volts.

Pro-Trak does this in one discharge cycle, when the pack reaches the set cut-off level Pro-Trak records the time but continues to discharge to 5.7 volts and records this time also.

The display at the end of discharge will show the time to reach the set cut-off level, the capacity to this level and the time from the cut-off level to 5.7 volts (dump)

The above display would indicate that you have 34 seconds left in your nicads to the cut-off , but only 6 seconds left from 6 volts to 5.7 volts (dumped)

The dump voltage is calculated from the number of cells therefore you can dump any number of cells and Pro-Trak will give the relevant information.

When set, Turbo charge is applied to the 4 main charge modes ie Profile, Linear, Soft Pulse and Repulse. If Turbo increase is set to 1.50amps the charge current is slowly increased by 1.50 amps when the delta fallback is > 0.03

If the charge current is set to 4.50 amps and the Turbo Increase is set to 1.50 amps then when the delta fallback is >0.03 the charge current is slowly ramped to 6.00 amps ( 4.50 + 1.50 )