Kantech Telephone Entry System, Руководство по установке

Страница: 39 / 42

DN1769-1809 33
Kantech Telephone Entry System Installation Manual
9 - Maintenance Recommendations
Important: Only a technician should perform the following maintenance recommendations.
The KTES includes a lithium battery (see Figure 8 Kantech Telephone Entry System PCB View on page 15). This
battery
cannot be replaced in the field. If the lithium battery stops working, return the circuit board to Kantech. Do
not crush, puncture, open, disassemble or otherwise mechanically interfere with the battery. Do not try to recharge
the battery. If you need to dispose of the circuit board, wrap it in non-conductive tape.
Regarding the recommended backup battery 12 VDC / 7 Ah: It is the technician’s responsibility to assure that the
disposal of used batteries is made according to the waste recovery and recycling regulations applicable to the
intended market. Use the recommended battery type ONLY.
Warning: Do not store the batteries in such a way that they come into contact with each other or with any piece of
metal. Explosion or fire may occur. Should fire occur, use only dry chemical fire extinguishers. Do not use
water to put out the fire. Do not heat the batteries. Do not dispose of the batteries or circuit board in a fire.
Do not disassemble the batteries. Do not apply pressure to or deform the batteries. Ensure that the above
precautions are strictly observed by related departments, including, but not limited to, production, sales
and outside contractors.
It is highly recommended to test the KTES by performing the following tests:
1.
Bi-annual test for backup battery:
Remove AC power (UL Listed) or DC power (CE Compliant) from the KTES and let it work on backup battery
power for one hour. This test will ensure that in the event of a power failure, the backup battery will be able to
support normal operations. This test should be performed twice a year. Once the test has been performed
successfully, reconnect power to the KTES.
2. Annual test for lithium battery:
Measure voltage when power is totally removed from the KTES (AC or DC and backup battery power). To
ensure maximum operation and to prevent loss of the database, contact your distributor to return the KTES for
maintenance, if the lithium battery voltage measures below 2.5 VDC.