User Manual
E115-P
Page 52
FW_E115-P_M_v0301-01_EN
7
MAINTENANCE
Product damage: Only trained and authorized personnel may maintain the unit. Always read and
understand this manual (especially
) before proceeding.
If the E115-P is damaged or faulty, it cannot be repaired by the user and must be replaced with an
equivalent certified product. Repairs can only be carried out by the manufacturer or their authorized
agent.
The unit only requires occasional periodic maintenance unless it is used in low-temperature
applications or environments with high humidity (above 90% annual mean). It is the user’s
responsibility to take all precautions to dehumidify the internal atmosphere of the unit in such a way
that no condensation will occur, for example by placing dry silica-gel sachet in the casing.
To prolong the battery lifetime as much as possible, it is also strongly advisable to use only
necessary functions. Consult
Section 5.2.4: Saving battery lifetime (type PB) [»17]
.
The following are suggested periodic maintenance tasks.
7.1
CHECK FOR WEAR OR DAMAGE
1. Check the unit (including cable glands and wiring) for damage or aging symptoms.
2. Check the process accuracy. If necessary, re-calibrate the flowmeter. Do not forget to re-enter
any updated K-factor values.
3. Check the battery indicator for low level; replace battery as necessary – see
.
7.2
CLEAN UNIT
1. Soak a lint-free cloth with mild soap solution or fresh water.
2. Clean the complete unit (including control panel) by gently wiping with the cloth taking care that
no moisture enters the housing.
7.3
REPLACE BATTERY
Explosion risk: never open the housing when explosive atmosphere is present.
Safety risk: do not open an installed enclosure when circuits are alive.
USE OF UNAPPROVED OR DAMAGED BATTERIES CAN INVALIDATE EXPLOSION SAFETY.
● Only use batteries that are approved by the manufacturer. Approved batteries can be ordered
from your supplier.
● A damaged battery is unsafe and can cause injury. Always handle the battery with care.
Follow the instructions shown in
Section 6.2.3: Opening, assembling and closing the unit [»36]
, to gain
access to the MEM and BSM/RSM.
7.3.1
BATTERY REPLACEMENT SUPPLY MODULE BSM / RSM
Check new battery
Before exchanging the battery, make
sure the new battery is undamaged,
in good condition and suitable for use
in the unit. Check that the marking on
the battery correspond with the type
of installation, as shown on the right.
