Sparrow >> Service >> Electrical >> E-Meter
1. Intro
2. Manual
Manual (pdf)
3. Troubleshooting
3.1 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)
