BEKA BA627E, Instruction Manual, Page: 14 / 16

6. MAINTENANCE
6.1 Fault finding during commissioning
If a BA627E 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
terminal 12
positive.
No loop current
0V between
terminals 1 & 3 or
between terminals
3 & 12 if optional
backlight is loop
powered. Incorrect wiring
or no power
supply Check supply
voltage and
voltage drop
caused by all the
instruments in the
loop.
Unstable 4/20mA
loop current. Noisy power
supply or
insufficient
voltage to power
all the
instruments in
the loop. Eliminate ripple on
power supply or
increase supply
voltage.
Unable to enter
configuration
menu. Incorrect
security code
entered. Enter correct
security code, or
contact BEKA if
the code has been
lost.
BA627E displays
‘LP Lo’ Voltage between
BA627E terminal
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 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 Set Point
Stations are returned to BEKA associates or to our
local agent for repair.
6.4 Routine maintenence
The mechanical and electrical condition of the
instrument should be regularly checked. Initially
annual inspections are recommended, but the
inspection frequency 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
comments from customers about our products and
services. All communications are acknowledged
and whenever possible, suggestions are
implemented.
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