Battery Life; Periodic Maintenance - GE Hydran M2-X Instruction Manual

Hydran* M2-X Instruction Manual

9.3.2 Battery Life

The Hydran M2-X's battery is used to keep the real-time clock functioning and to
retain the historic data when the unit is not powered. The shelf life of the battery in
the Hydran M2-X is 2.5 years when the unit is stored at 25 °C (77 °F). If the Hydran
M2-X has been stored for more than one year, it is strongly recommended to replace
the battery before installation and powering-up.
The set points of battery alarms (see Setup > Alarms Setup > Battery Setup in
Section 3.3.2.4) are the following:
• Low alarm = 3.35V (or 2.75V for units before 2012).
• Low-Low alarm = 3.05V (or 2.45V for units before 2012).
When the Low alarm is generated, the battery must be replaced within a period
of three months. When the Low-Low alarm is generated, the battery must be
replaced immediately.

9.4 Periodic Maintenance

The person in charge of maintenance must already be familiar with the Hydran
M2-X to:
• Use and set the Hydran M2-X's parameters with its keypad.
• Use the Perception software.
If not, reviewing the previous Chapters will help in performing maintenance
routines.
WARNING
Table 9-1 below summarizes the maintenance routines and their frequency. Each
routine is explained in detail in the Section indicated in the table.
MA-029 Rev. 1.0, 30-Jul-18
Before proceeding with any maintenance operation, review
local safety regulations. Read all warnings and recommend-
dations in Chapter 1.
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