Installation Guide

MAINTENANCE AND CLEANING
Additional Safety Information
M424 I
NSTALLATION GUIDE 35
Magnetic Stripe
Cleaning
The Magnetic Stripe Reader (MSR) must be cleaned on a regular basis (daily to
once a week, depending on usage), as dirt accumulation can lead to MSR reading
problems. MSR can be cleaned using commercially available card reader
cleaning cards or using recommended Verifone cleaning card (PN 02746-02).
Using the Battery
The Verifone M424 device uses an integrated circuit with a lithium battery having
reverse-charge protection. The internal logic of the battery prevents both
overcharging and undercharging (a fault condition in which the battery level goes
well below the minimum acceptable charge and the battery becomes unusable).
NOTE
If using a commercially available cleaning card use ONLY an approved MSR
cleaning card made specifically for POS MSR Card reader devices or Petroleum
MSR card readers.
CAUTION
There is a risk of explosion if the battery is replaced by an incorrect type.