Sparrow >> Service >> Electrical >> E-Meter

Intro

Manual

Configuration

Group Consensus E-meter Settings for the Sparrow

Parameter		Displ	Corbin	Suggested
Description	LED	Code	Setting	Setting
Charged Voltage	(V)		190	190
Charged Current Percent	(A)		002	004
Battery Capacity	(Ah)		65	55
Time or 4P means Percent	(t)		4P	4P
Reset Ahrs, factory values	RESET	AH
Charging Efficiency Factor	DATA	E90	E90	E90
# of CEF Recalculations	DATA	+???
Deepest Discharge in AH	DATA	-???
Average Discharge in AH	DATA	???
E-meter setting Lock out	LOCK	LOC	Off	Off (or On)
Auto Display Scanning	FUNC	F01	Off	Off (or On)
Turn Display Off (Sleep)	FUNC	F02	Off	Off (or On)
Battery Temperature (in C)	FUNC	F03	020	020
KWhr Display instead of AH	FUNC	F04	Off	Off
Charge Params 1 min not 5	FUNC	F05	Off	Off
Manual CEF Set (A90=Auto)	FUNC	F06	A90	A90
Temperature Coefficient	FUNC	F07	0.5	0.5
Peukert Exponent	FUNC	F08	1.09	1.09
Discharge Floor (DOD)	FUNC	F09	100	080
Low Battery Recharge Pcnt	FUNC	F10	070	070
Low Battery Alarm On Pcnt	FUNC	F11	080	080
Low Voltage Alarm Threshold	FUNC	F12	105	115
Voltage Scaling 2={0-500V}	FUNC	F13	002	002
Enable Low Battery Alarm	FUNC	F14	Off	Off (or On)
Display E-meter Version	FUNC	F15	???	???
E-meter Temp Sensor Enable	FUNC	F16	Off	Off
Light Test	FUNC	F17

Setting Instructions:

- If the meter is locked, unlock it by following instructions below to set the LOCK function to Off. - Hold SET button for 3 seconds until display says SEL - Press SEL button to select a parameter - If a FUNC is selected, Press SET to see its value - Press SET button to set the value - The E-meter will go back to normal mode after a few seconds

Instructions using the E-meter to determine when to charge:

Note: the numbers in this section are for battery packs in broken in, new condition. If your battery pack is unbalanced or fading, you should drive even less on a charge.

Press the SEL button to choose which value you want to see:

 (t)  Percent remaining.  Don't ever get to 0%, and don't go down to 20% unless you really need to. Stay above 40-50% for long battery life.
 (V)  Voltage. If it goes below 150 after 2 minutes rest, 135 driving at constant 50A, 120 with the accelerator down. Then pull over, and wait for the voltage to get back above 150. Charge before driving again if it won't get back up to 150.
 (Ah) Amp Hours.  Don't exceed -36 AH ever, and don't exceed -30 AH unless you really need to.
 (A)  Amps. Avoid high (100+) Amps at low Percent.

The Columns:

"Parameter Description"- an attempt to explain what the parameter controls. "LED"- which LED will be lit up when that parameter is selected. "Displ Code"- what appears on the display when that parameter is selected. "Corbin Setting"- Settings Sparrows are delivered with,

     as posted from Lawrence From Environmental Motors 2/10/01.

"Suggested Setting"- the group consensus setting.

With these settings the E-meter should detect the end of the charge cycle giving the blinking green light, and read zero Percent when the batteries are at 80% DOD.

Troubleshooting

Voltages at terminals

With a voltmeter's negative lead on terminal 1 (brown) you should see:
- Terminal 2 - 0 V
- Terminal 3 - 0 V
- Terminal 4 - 1/10 of pack voltage
- Terminal 5 - 12 V supply
The 12 V supply is generated by a small DC-DC converter inside the EVCL box
The pack voltage sample is generated by a voltage divider, whose 2 legs are:
- 1 leg is in the EVCL (about 1 Mohm)
- 1 leg is the input impedance inside the e-meter (about 100 kohm)