TM-2030 Technical Manual

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dSC Shows the number of days since the battery has been fully charged. This display gradually increases by 1.00
every day until the battery is charged, at which time this value is automatically reset to 0.00. To understand precisely what
the TriMetric considers “charged”, refer to section 6.2: How the TriMetric keeps track of Battery%Full. For this
number to be correct, Program values P1, P2 and P3 must be correct as described in “Installer’s Instructions for TriMetric
TM-2030.”
dSE Days since the battery was equalized. “Equalization” refers to occasionally overcharging a battery to help it
maintain its capacity. It is usually recommended only for liquid electrolyte lead acid batteries, not AGM or Gel
types. This display is intended to remind you when to equalize your batteries if this is not done automatically by
your charging system. It is essentially just a manual timer, that reads in DAYS, so that you can see how long it
has been since your batteries were equalized. Each day when not reset will advance by 1.00 day. Then it must
be MANUALLY RESET by you when you take action to equalize the batteries. For how to reset this, refer to
Figure 1, in reference to the RESET button.
A or Pr (A shows Amps, Pr shows Watts) This display shows either AMPS or WATTS, depending on what has
been programmed in P4 (see table 2 on page 6). If the primary display shows AMPS then this one will show
WATTS. And vice versa
rPC: "Replaced Percentage of recently discharged energy. (Not the same as % full, above.) This shows the
percentage of charge that is being replaced--compared to the amount that was recently removed during the last
discharge cycle. While discharging this display shows 0. When charging it increases--when it shows 100% it has
replaced the same amp hours that was last removed. To preserve capacity of liquid lead acid batteries it is often
recommended to overcharge to 110-120% before going into "float". For AGM batteries to 103-108%.
While showing “rPC”: hold the RESET button down to view how many amp hours were removed during the
last discharge cycle. This is the “base” on which rPC is calculated. The reason for showin this is that if batteries
were only slightly discharged, then a large percentage showing as rPC could be insignificant. (TM2030 Version
2.2 or higher)
2.2 What are Battery Reminders? This is an optional feature that is designed to help you keep your
batteries maintained, which can remind you to periodically charge your batteries to maximize their life. It comes from
the factory turned OFF. More detailed information about the need for proper charging can be found in section 7 of
these instructions: Important information on how to keep from killing your batteries.
At basic Operating level L1, there are two reminders which you can invoke if you wish:
2.2.1 “Ch.F” (Charge Full) Reminder to charge batteries fully if they haven’t been charged in several days. You
can choose how many days. Lead acid batteries need to be frequently fully charged, otherwise they will lose
capacity. We recommend no longer than about 5 days. (See program P5, table 2). If you set it for 5 days then if
5 days pass without fully charging the batteries the message “Ch.F” will occasionally blink in the display, until
batteries are again fully charged.
2.2.2. “Ch.E” (Charge Equalize) See the end of Section 7 for a discussion of equalization. This display will blink
“Ch.E” as a reminder to equalize batteries, (typically monthly) should you choose to use it. Set the display
interval in days, or turn this feature off by using program P6, see table 2. After you accomplish equalization you
must manually reset the “Days since equalized” number to zero to stop the blinking. First: access the “dSE”
display as described in figure 1. Then use the RESET button. After the equalization period elapses it will blink
again
This function is also used to start equalization with SC-2030 charger. See SC-2030 User’s instructions.)
2.2.3 To activate audible alarm, see P9 and P13 on page 12 (after reading section 5)
2.3 Who might want to use operational level L2, L3 or L4? (See section 3)
Level 2 will allow observing the History data (always being recorded)—see page 5
Level 3 will allow these additional functions:
●Allows addition of the optional Bogart Engineering SC-2030 30 Amp solar charger for your batteries.
●Allows setting up the audible and visual “low battery” alarm. (Table 3, P9 and P13)
●Using a 100A/100mV shunt instead of the more usual 500A/50mV shunt (see Table 3, P11)
●Allow disabling the “automatic reset” when the batteries are charged. (see Table 3, P12)
●Choice of “efficiency factor” different from the default 94% (see Table 3, P10 and Section 6.2)
●Calibrate the battery voltage (see Table 3, P18)
●Allows observation of “filtered” values of volts and amps, used for determining when batteries are
“charged”. (See section 3 and section 6.2, step5, “Level L3 and L4”)