Unlike basic analog meters, the 3501 can often be programmed for specific battery profiles.
The 3501 comes in variants (e.g., 3501-4401 vs. 3501-2201). The manual is the only place that lists the settings. If you install a 48V battery into a controller programmed for 36V without consulting the manual, you will release the magic smoke within minutes. curtis 3501 manual
After performing maintenance, specific pin combinations (usually grounding a reset pin for 5 seconds) will clear the "Service" icon. 5. Troubleshooting Common Issues Unlike basic analog meters, the 3501 can often