Sampling Process; Figure 7-4: Manual Oil Sampling Process - GE Kelman MINITRANS User Manual

Transformer oil dissolved gas and moisture monitor
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7.2 Sampling Process

Observe the PRODUCT operating mode on the LCD display panel. Figure 7—4 outlines the
steps to obtain a manual oil sample.
Standby mode
Figure 7—4: Manual oil sampling process
See 6.1 for product display panel information.
MA-006- MINITRANS User Guide - Rev 2.1
Measurement mode
Use TransConnect to stop
a measurement
Oil Drains
Standby mode
Remove plug from ¼ in.
ball valve
Attach PTFE tubing to1/4
in. ball valve
Attach other end of
tubing to stopcock
Attach equipment to
stopcock e.g. syringe
Open ¼ in. ball valve and
take oil sample
Close ¼ in. ball valve and
remove tubing assembly
Replace plug on ¼ in. ball
valve
1.
If the product is in Standby mode,
proceed to step 3. If the product is
in Measurement mode, either wait
until the product returns to
Standby
mode
TransConnect software to stop the
active measurement cycle.
2.
If an active measurement is
aborted, oil may remain in the
headspace. The display reads "
". Wait several minutes for
DRAINING
the draining process to complete
and for the product to return to
Standby mode.
3.
Once the product returns to
Standby mode, remove the plug
from the ¼ in. ball valve.
4.
Take the PTFE tubing and connect
it to the ¼ in. ball valve (see Figure
7—2 to Figure 7—3).
5.
Remove the Luer fitting cap from
the other end of the PTFE tubing
and attach the supplied stopcock.
6.
Connect
the
sampling
equipment
stopcock e.g. syringe and perform
the oil sampling.
7.
Open the ¼ in. ball valve to allow
oil to flow to the sampling point.
8.
When finished sampling, shut off
the ¼ in. ball valve to stop the oil
flow.
9.
Disconnect
the
arrangement.
10.
Replace the plug on the ¼ in. ball
valve.
13-Oct-15
or
use
the
OIL
remaining
oil
to
the
oil
sampling
Page 19 of 25

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