BEKA BA627E-SS, Manual, Page: 16 / 18

6. MAINTENANCE
6.1 Fault finding during commissioning
If a BA627E-SS Set Point Station fails to function
during
commissioning the following procedure
should be followed:
Symptom Cause Solution
No loop current Incorrect wiring Check wiring
There should be
6.1 to 30V
between terminals
1 & 3 with terminal
1 positive.
With an optional
backlight which is
loop powered,
there should be
10V to 30V
between terminals
3 & 12 with ter-
minal 12 positive.
No loop current
0V between ter-
minals 1 & 3 or
between terminals
3 & 12 if optional
backlight is loop
powered. Incorrect wiring
or no power sup-
ply Check supply
voltage and
voltage drop
caused by all the
instruments in the
loop.
Unstable 4/20mA
loop current. Noisy power
supply or insuffi-
cient voltage to
power all the in-
struments in the
loop. Eliminate ripple on
power supply or in-
crease supply
voltage.
Unable to enter
configuration
menu. Incorrect secur-
ity code entered. Enter correct se-
curity code, or
contact BEKA if
the code has been
lost.
BA627E-SS dis-
plays
LP Lo
Voltage between
BA627E-SS ter-
minal 1 & 3 is
too low, Increase 4/20mA
loop supply
voltage.
6.2 Fault finding after commissioning
ENSURE PLANT SAFETY BEFORE
STARTING MAINTENANCE
If a BA627E-SS Set Point Station fails after it has
been functioning correctly follow the procedure
shown in section 6.1.
If this does not reveal the
cause of the fault, it is recommended that the Set
Point Station is replaced.
6.3 Servicing
We recommend that faulty BA627E-SS Set Point
Stations are returned to BEKA associates or to our
local agent for repair.
6.4 Routine maintenance
The mechanical and electrical condition of the instru-
ment should be regularly checked. Initially annual in-
spections are recommended, but the inspection fre-
quency should be adjusted to suit the environmental
conditions.
6.5 Guarantee
Set Point Stations which fail within the guarantee
period should be returned to BEKA associates or our
local agent. It is helpful if a brief description of the
fault symptoms is provided.
6.6 Customer comments
BEKA associates is always pleased to receive com-
ments from customers about our products and ser-
vices.
All communications are acknowledged and
whenever possible, suggestions are implemented.
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