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Frequently Asked Questions

Following are frequently asked questions about E/One hydrogen monitoring equipment and hydrogen gas analyzers. If you need more information or a product manual, please contact us for assistance.

GCM-X

GCM-A

GGD II

GGA

DHCP

  

Generator Condition Monitor, Explosionproof Design (GCM-X)

Application

  

Installation

 

Operation

 

Troubleshooting

  • What happens if my GCM-X becomes contaminated with oil?
    Oil contamination will affect the operation of the GCM-X Ion Chamber Detector (ICD). If the oil contamination is significant, the ICD may have to be replaced by E/One's Field Service Group. Contact Field Service at 01.518.579.3035.
  • The GCM-X goes into “Warning” frequently.
    The Warning provides an early indication that the output from the ion chamber detector has dropped below a set point, which is factory set at 70 percent. The Warning level can be changed by selecting WARNING LEVEL from the SETUP MENU. Contact E/One Field Service at 01.518.579.3035 if you are getting frequent warnings.
 

Generator Condition Monitor, Air-Cooled (GCM-A 2)

Application

  

Installation

  • How is the GCM-A connected to the generator?
    The GCM-A has two sampling ports, one that takes a sample of the ambient air outside the generator and one that takes a sample from inside the generator case or cooling air. The ambient air sample is usually collected using one sample head. The cooling air sample is usually collected through a sampling probe that is designed according to the generator coolers and cooling air flow.
  • What are the supply power requirements?
    The GCM-A can either be powered by 115 VAC, 50/60 Hz or 230 VAC, 50/60 Hz.
  • Can the GCM-A be located outside?
    The operating temperature range for the GCM-A is 0 to 50 degs C (32 to 122 degs F). Steps need to be taken to ensure the operating temperature does not go outside of this range. The GCM-A system is housed in an enclosure that provides some protection from the environment but needs to be protected from rain, snow and salt air.
  • Can the GCM-A be connected to my DCS?
    Yes, the GCM-A has six relays: alarms, warnings, and troubles; and three 4-20mA signals that can be connected to the DCS.
  • Do I need to connect the output of the GCM-A to a recording device?
    Yes, it is recommended the 4-20mA signals be connected to the DCS so the outputs can be reviewed should an alarm occur.
  • How far away from the generator can the GCM-A be located?
    The GCM-A should be located as close as possible to the generator to minimize the length of tubing and number of bends.
 

Operation

 

Troubleshooting

 

Generator Gas Dryer II

Application

  

Installation

  • What are the supply power requirements?
    Supply voltages required are 400 VAC 50 Hz, or 460 VAC 60Hz, 3000 Watt, 3 phase
  • How is the GGD II connected to the generator?
    Flange connections to the generator fan suction, generator fan pressure and vent lines.
  • Can the GGD II be connected to my DCS?
    Yes, there are two 4-20 mA output signals for the inlet dew point and outlet dew point as well as the followng relay signals: dew point high, trouble, regeneration, blower motor status and circuit breaker status.
  • Can the GGD II be located outside?
    The operating temperature range for the GGD II is 0 to 52 degs C (32 to 125 degs F). Steps need to be taken to make sure the ambient temperature does not go outside this range. The GGD II also needs to be protected from rain, snow and salt air.
 

Operation

 

Troubleshooting

 

Generator Gas Analyzer

Application

  

Installation

 

Operation

 

Troubleshooting

 

Dual Hydrogen Control Panel

Application

  

Installation

 

Operation

 

Troubleshooting