Battery backup table

RELATED FAQS

Question
Answer
Some transformers in the power supplies provide a little humming noise and that is normal. If the humming in Von Duprin PS873 power supply is loud follow these steps. Remove the load from the outp...
The battery for the PS873 and PS914 are the same, 7AH sealed Lead Acid  battery.
Battery backup can be added to the PS900 series power supplies. Order the 900-BBK to get the battery backup board and batteries for field installation.
The Von Duprin PS914-2RS retracts the EL or QEL device approximately 200 times with five second hold time after each pull.
See  Board Differences Battery Backup Circuitry  for a picture of the visual differences between a F-Series biometric handreader with a main board that has the battery backup ci...
Attached are the MSDS (material safety data sheet) of the three different manufacturers of batteries for the 900-BB battery backup.   MSDS for 900-BB