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“ Battery backup table ”

Resolution: 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...:

Are the batteries for the PS 914 BBK the same as the ones from the 873 BB?

Resolution: The battery for the PS873 and PS914 are the same, 7AH sealed Lead Acid battery.:

Can Battery Backup (BB) be added to a PS900 series power supply in the field?

Resolution: 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.:

How many times can an EL device be operated when using a PS914-2RS with battery backup?

Resolution: The Von Duprin PS914-2RS retracts the EL or QEL device approximately 200 times with five second hold time after each pull.:

What are the visual differences on a F-Series handreader main boards that have battery backup and main boards that do not have battery backup?

Resolution: 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...:

Are there MSDS sheets for the batteries in the 900-BB?

Resolution: 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:

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“ Battery backup table ”

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