TA74 User Manual Cleaning, disinfection, maintenance, reuse | en 49
TA74_UM_EN_V2.5_2019.09_Final © TeleAlarm SA
9.2 Maintenance
A technician must perform maintenance each time there is a change of user. In order for the
TA74 to offer maximum safety over its entire service life, maintenance must be carried out
at least every five years without user changes.
1. Replace the unit battery of the TA74 after five years at the latest, see section
9.5 "Replacing the unit battery". TeleAlarm recommends replacing the battery with a
replacement battery from TeleAlarm after only three years (order number
T.200.001.296).
2. Replace the wireless transmitter battery after five years at the latest, see section
9.6 "Replacing the battery of the wireless transmitter".
3. Disinfect and clean the TA74 and wireless transmitter, see section 9.1 "Cleaning and
disinfection".
4. Check the housing of the TA74 and the wireless transmitter for mechanical damage.
Damaged housings can be replaced by TeleAlarm or independently.
5. Check connecting cables for damage and loose contacts. Replace defective
connecting cables with original TeleAlarm cables.
6. Carry out a function test. For this purpose, a test emergency call should be triggered
via the emergency call button and the wireless transmitter, see section 8.6 "Test
instructions".
If the responsible technician is not able to carry out the maintenance on the devices
completely and the devices are not in perfect condition, have them checked and serviced
by TeleAlarm.
9.3 Reuse
The TA74 and the wireless transmitter are suitable for reuse by other users. Authorised
personnel must prepare the device and the wireless transmitter for reuse as follows:
1. Deinstallation: Disconnect all plugs from the device. Begin with the power supply.
2. Disinfect, clean and carry out maintenance on the devices, see section 9.1 "Cleaning
and disinfection" and section 9.2 "Maintenance".
3. Disinfect the TA74 and wireless transmitter again before packing.
4. If necessary, have devices checked and serviced by TeleAlarm.
5. Replace missing accessories and Quick Guide, see chapter 3 "Scope of delivery".
6. Program the TA74 and wireless transmitter for the new user.
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