Manual Oil Sampling; Sampling Arrangement; Figure 7-1: Manual Sampling Arrangement; Figure 7-2: Product Fitted With Manual Sampling Arrangement - GE Kelman MINITRANS User Manual

Transformer oil dissolved gas and moisture monitor
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7 MANUAL OIL SAMPLING

7.1 Sampling Arrangement

The optional oil sampling port (if fitted) is located on the oil inlet on the base of the
product. This gives access to fresh oil via a manual sampling arrangement as shown in
Figure 7—1 to Figure 7—3.
Figure 7—1: Manual sampling arrangement
Figure 7—3: PTFE tubing
Before commencing work, ensure the use of suitable protective gloves, such as
nitrile rubber.
Perform the manual oil sampling according to the sampling process outlined in Figure 7—
4. GE recommends the use of a 50-ml ground glass syringe. Manual oil sampling shall be
performed while the product is in Standby mode – either wait until the product returns to
Standby mode or force the product to stop the current measurement cycle using the
TransConnect software. The optimum time to perform a manual sample is just after the
product has completed a measurement because fresh oil will be at the manual sampling
point.
Note: Collecting a manual sample while the product is performing a
measurement is not recommended as this could potentially affect the readings.
MA-006- MINITRANS User Guide - Rev 2.1
Figure 7—2: Product fitted with manual sampling arrangement
13-Oct-15
Page 18 of 25

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