Hydran* M2-X Installation Guide
MA-028 Rev. 2.1, 11-Jun-20
Figure 2: Hazardous location label
Note: In the case of a HazLoc certified product, please ignore additional appendices in
this document as they relate to a standard Hydran M2-X regarding servicing of parts, and
therefore are not applicable for a HazLoc certified product.
For any servicing needs, the unit must be removed from the transformer and returned
to a GE service centre.
Table 1 lists other HazLoc relevant materials for the Hydran M2-X / Hydran M2-X H2
that are in contact with oil under normal-use operations.
Table 1: List of product materials in oil contact
This is the constituent material of the sensor body.
Constituent material in V023, V029 & V030 O-rings
Glass to metal seal formed between sensor brass and
Humidity-in-oil sensor
DOW CORNING ® high vacuum grease
Greased O-rings create appropriate seals
Teflon Chemfilm® DF100 PTFE
This forms the outer layer of the oil-gas membrane in the
standard composite-gas sensor
This forms the outer layer of the oil-gas membrane in
standard Hydrogen only sensor
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