Eaton MTL

MTL Instruments Group


K6050AP - Hydrogen Purity Monitor for Power Station Alternator and Turbines Purge (Transportable)

  • Start up time < 5 minutes
  • Robust IP67 enclosure
  • Single sensor for all gas ranges
  • Measures H2 CO2 and Air
  • Supplied with battery charger


Modern power station installations often use Hydrogen gas, with its excellent thermal conductivity properties, as the coolant medium for high capacity turbo generators or alternators; with the efficient performance and safe operation of the plant being critically linked to the gas quality used. During the commissioning and decommissioning of the alternator it is essential that the hydrogen is safely introduced and purged. Therefore, air must first be purged from the system by an inert gas such as carbon dioxide (CO2). The hydrogen coolant is then introduced and replaces the purge gas. To decommission the turbogenerator the purge sequence is reversed. During daily operation, the hydrogen purity must also be monitored to ensure that the H2 has not become contaminated by air leakages. Not only will air ingress produce a potentially explosive atmosphere but it will also affect the viscosity of the H2 coolant gas, increasing drag and hence, windage losses. The Alternator Purge Gas Monitor series measures all stages of the fill-purge cycle as well as measuring hydrogen purity during normal operation.

System Description

The K6050AP gas analyser is a complete instrument, which is the portable equivalent of the K1650AP. The K6050AP is supplied in a rugged case complete with rechargeable batteries capable of lasting for a full purge cycle. A sample pump, 0 to 1 Volt recording output, flowmeter and needle valve are all included as standard.

The K6050AP analyser has three pre-configured ranges to enable measurement of hydrogen purity plus all stages of the purge cycle: 0 to 100% CO2 in Air; 0 to 100% H2 in CO2 and 90 to 100% H2 in Air.

For sites using nitrogen or other purge gases, please contact us for an alternative solution.

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K6050AP   K6050AP Datasheet  Manual