Phone: 714-751-0488
Fax: 714-957-1621
E-Mail: [email protected]
P.O. Box 1306
Newport Beach,
California 92663
Setting Charge Control On-Off Limits
If the Charger Control function is selected for screw
terminal (B), the DCE can be programmed to automatically
turn a charger on and off, depending on the amp-hours
remaining. The factory default is to turn the charger on when
Amp-Hours Remaining drops to 50% of battery capacity and
switch off when it returns to 90% of capacity. Screw
terminal (B) outputs a +5V signal to activate the charger.
To set the upper charge control output limit (charger “off”
point) in percent, press both the
and
keys to display
amp-hours remaining in percent. Then hold the
key
down for 10 seconds (until you hear a long beep). The upper
charge limit will be displayed in percent. Use the
and
keys to set the desired value. Use the
key to save the
new value to memory.
To set the lower charge control limit (charger “on” point) in
percent, press both the
and
keys to display amp-hours
remaining in percent. Then hold the
key down for 10
seconds (until you hear a long beep). The lower charge limit
will be displayed in percent. Use the
and
keys to set
the desired value. Use the
key to save the new value to
memory.
Resetting Amp-Hours Remaining
While viewing Amp-Hours Remaining, press and hold the
key for 10 seconds (until you hear a long beep). The
Amp-Hours Remaining will be reset to the full amp-hour
capacity of the battery.
Adjusting Amp-Hour Drift
If the battery system remains unused for several weeks, the
amp-hour tracking function of the DCE will start to lose
accuracy. This is because small calibration and measurement
errors can accumulate, causing the displayed amp-hours to
“drift” so that it no longer reflects true amp-hours remaining.
To minimize this long term drift, you can program an amp-
hours drift compensation value between 0 and 100, which
will increase the accuracy. The nominal drift value is 55. To
change this value, press and hold both the
and
keys
when applying power to the DCE. Use the
and
keys
to set the desired value. Press the
key for 1/2 second to
save the new value.
If the displayed amp-hours is drifting down faster than actual
amp-hours, increase the drift compensation value slightly. If
it is drifting upward faster, then decrease the value slightly.
Notes and Warnings
a) When setting functions that require you to hold down a
key while applying power - turn OFF the power, then hold
the key(s) down during and for at least 3 seconds AFTER the
power has been applied.
b) A display of "
- - - -
" means the unit thinks the amp
reading is greater than -500 amps.
c) It is important to run the ground wire from pin A all the
way back to the shunt negative.
NMEA 0183 Sentences
Volts:
$IIXDR,U,xx.x,V,VAH35,*CS
Amps:
$IIXDR,I,xxxx,A,VAH35,*CS
A-H Remaining:
$IIXDR,G,xxxx, ,VAH35,*CS
*CS = Check Sum
Specifications
Power supply:
9.5 to 33.0 VDC, .018 amps nominal
Operating temperature:
32 to 122 F ( 0 to 50 C)
Size:
2.5" dia X 4.1" deep (61mm x 104 mm).
Accuracy:
Better than +/- 0.1 VDC for volts and
1% +/-1 Amp for amps, front panel adjustable.
Ranges:
Volts 1,2 & 3
-
9.5 to 33.0 VDC
Amps
-
-500 to +500 Amps*
Amp-Hours
-
100 to 3000 A/H*
Capacity Remaining - 0 to 100%*
Shunt:
500 Amp, 50mV*
*Applies to Bank 1 (house bank) only
Alarms:
High, Low Voltage & Low Amp-Hours
Display:
4 digit LCD, 5 levels of backlighting.
NMEA 0183:
$IIXDR,V; $IIXDR,A; $IIXDR,G