Uninstalling the EcoStruxure Transformer Expert ProbeSensor H2

The removal procedure is available for ETE ProbeETE Sensor, connected or not to the H2 Dual extension.

WARNING
HAZARD OF inadequate operation Follow all steps of the removal process. Close the oil valve correctly when indicated. Failure to follow these instructions can result in death, serious injury, or equipment damage.

WARNING
HAZARD OF incomplete checking Carry out a final check for leaks on the valve. If a leak or a suspected leak is present, do not touch the valve nor start the installation. Inform the site contact to take the appropriate measures. Failure to follow these instructions can result in death, serious injury, or equipment damage.

To remove the ETE ProbeETE Sensor:

1. Follow the procedure about de-energizing the transformer, as when installing it.

2. Turn off the circuit breaker for the ETE ProbeETE Sensor.

3. Remove the ETS cable.

4. Remove the power cable.

5. If installed, removeRemove the H2 cable from the sensor.

6. Remove the ETE ProbeETE Sensor:

   If the ETE ProbeETE Sensor is set at the bottom, the internal pressure from the insulation liquid can rise up to 0.5 bar, creating a force up to 10 N on the sensor. Then, when unscrewed, the ETE ProbeETE Sensor can move alone and go out suddenly.

   NOTICE
   Hazard of inadequate operation When unscrewed, maintain the ETE ProbeETE Sensor in position during removal, up to the closing of the valve. Failure to follow these instructions can result in equipment damage and environmental pollution.

   NOTE: After this step, you will have to immediately close the oil valve.

   1. Measure the length from the tank wall to the end of the BSPP adapter.

      

      If the length is < 315 mm (12.40 in), the probe length is Medium = 315 mm (12.40 in).

      If the length is ≥ 315 mm (12.40 in), the probe length is Large = 400 mm (15.75 in).

   2. Deduct 60 mm (2.36 in) from this probe length: the result is the distance to escape the valve, but keeping the sealing from the O-ring gasket set inside the adapter.

   3. Unscrew the ETE ProbeETE Sensor and partially withdraw it out of the adapter, of the calculated length.

      

7. Close the valve.

8. Fully remove the ETE ProbeETE Sensor (ETE logger and sensor H2)

9. Keep a bucket in handy to collect and remove oil.

   NOTE: If the mounting kit is kept in place when sensor H2 is not set on it, place a cap (plastic or metallic) to avoid pollution of the inner part of the mounting kit.