MA-014 - TRANSFIX DGA 500 User Guide – Rev 1.1
13-Oct-15
Page 18 of 28
Code Error
Description
12
Bad communication with control PCB
No communication between the PGA and the circuit
board that controls the pump, valves and various sensors.
The product will abort the measurement.
13
Gas leak test: Pump pressure too low
The product performs a self-diagnostic gas leak test on
every measurement cycle. ‘Pump pressure too low’
indicates the product was not able to pull a vacuum due
to either a weak pump, blockage in the circuit or leak in
the circuit. The product will complete the measurement.
The final values may not be reliable.
14
Gas leak test: Pressure decay too high
The product performs a self-diagnostic gas leak test on
every measurement cycle. ‘Pressure decay too high’
indicates the product was not able to maintain a vacuum
due to a gas leak. The product will complete the
measurement. The final values may not be reliable.
15
-
Not used on the TRANSFIX family.
16
Oil temperature too low
The incoming oil temperature is below the expected
range. The product will abort the measurement.
17
Oil temperature too high
The incoming oil temperature is above the expected
range. The product will abort the measurement.
18
Oil pressure too low
The oil pressure internal to the product is below the
expected range. This can be due to a blockage on the
supply side of the oil circuit, often a closed valve or
clogged filter, or no oil present at the supply valve on the
transformer, sometimes seen when sampling from the
top of a N2 blanketed transformer. The product will abort
the measurement.
19
Oil pressure too high
The oil pressure internal to the product is above the
expected range. This can be due to a blockage on the
return side of the oil circuit, often a closed valve or
clogged filter. The product will abort the measurement.
20
Oil pump tacho count too high
The number of pump cycles needed to either fill or drain
the headspace with oil has exceeded the expected range.
This can be a blockage on either the oil supply or oil
return depending on when the error occurs. The product
will abort the measurement.
21
Oil pump pressure too low
The oil pressure internal to the product when the oil pump
is on is below the expected range. This can be due to a
blockage on the supply side of the oil circuit, often a
closed valve or clogged filter, or no oil present at the
supply valve on the transformer, sometimes seen when
sampling from the top of a N2 blanketed transformer. The
product will abort the measurement.
22
Oil pump speed out of range
The feedback from the oil pump is outside the expected
range indicating that the pump is not pumping at the
correct speed. The product will complete the
measurement. The final values may not be reliable.
24
Oil pump tacho count too low
The number of pump cycles needed to either fill or drain
the headspace with oil is below the expected range. This
can be due to an internal oil leak between the product’s
oil circuit and the headspace. The product will complete
the measurement. The final values may not be reliable.
25
Oil pump not turning
There is no feedback from the oil pump indicating that the
pump is not working. The product will abort the
measurement.
26
-
Not used on the TRANSFIX family.
