Bluetooth Module Vu121 (Optional) - Endress+Hauser Liquiphant FTL51B Operating Instructions Manual

Electrical connection
32
6.3.8

Bluetooth module VU121 (optional)

 30 Bluetooth module VU121
• The Bluetooth module can be connected via the COM interface to the following
electronic inserts: FEL61, FEL62, FEL64, FEL64 DC, FEL67, FEL68 (2-wire NAMUR).
• The Bluetooth module is only available in conjunction with the Heartbeat Verification +
Monitoring application package.
• The Bluetooth module with battery is suitable for use in hazardous areas.
• The Bluetooth module must be ordered separately, including the required battery, for
use in conjunction with electronic insert FEL68 (2-wire NAMUR).
Batteries - use and handling
Use of a special battery in conjunction with electronic insert FEL68 (2-wire NAMUR):
• For energy reasons, the Bluetooth module VU121 requires a special battery when
operated with the electronic insert FEL68 (2-wire NAMUR)
• Service life: At ambient temperatures from 10 to 40 °C (50 to 104 °F), the service life of
the Bluetooth module without replacing the battery is at least 5 years, with a maximum
of 60 downloads of complete datasets
The battery service life is calculated based on the scenario that the sensor is connected
and powered.
Additional information
The battery is categorized as dangerous goods when transported by air and may not be
installed in the device when shipped.
Replacement batteries can be purchased from a specialist retailer.
Only the following types of AA 3.6 V lithium batteries made by the manufacturers listed
below are suitable as replacement batteries:
• SAFT LS14500
• TADIRAN SL-360/s
• XENOENERGY XL-060F
Isolation lug in battery compartment
NOTICE
The removal of the isolation lug in the battery compartment of the Bluetooth module
results in early discharging of the battery irrespective of whether the sensor is
powered or not.
‣
When the sensors are in storage, the isolation lug must remain in the battery
compartment of the Bluetooth module.
Liquiphant FTL51B
A0039257
Endress+Hauser