Appendix A. Technical Specifications For The Hydran M2-X; A-1. General - GE Hydran M2-X Instruction Manual

Hydran* M2-X Instruction Manual

Appendix A. Technical Specifications for the Hydran M2-X

A-1. General

GENERAL
Description Continuous,
Components Combined dual-function sensor and electronic enclosure
Response Hydrogen (H
Medium Mineral, insulating oil for transformers
Application Transformer monitoring, moisture level measurement (for the
ANALYTICAL PERFORMANCE
Principle • Gas: Vacuum-resistant gas-permeable membrane and
Sampling Method • Flooded port with 1.5 in NPT male threads
Measurement • Gas: 25-2,000 ppm (volume/volume, H2
Range • Moisture: 0-100% RH
Accuracy
Repeatability
Gas Relative • H2: 100 % of concentration
Sensitivity • CO: Typical 15 ± 4 % of concentration
Response Time • 10 minutes sensor response (90 % of step change)
MA-029 Rev. 1.0, 30-Jul-18
transmitter with optional, external sensors monitoring
), carbon monoxide (CO), acetylene (C
2
(C H ), relative humidity in oil (%RH)
2 4
evaluation of dangerous conditions, bubbling temperature and
aging rate) and detection of incipient faults in oil-filled electrical
equipment
combustible gas detector
• Moisture: Thin-film capacitive sensor
• Gas: ± 10 % of reading ± 25 ppm (Ref.: ASTM D3612)
• Moisture: ± 2 %RH (Ref.: saturated salt solutions)
• Gas: Better than ± 5 % or ± 5 ppm
Limit
• Moisture: 2 %RH
• C2H2: Typical 8 ± 2 % of concentration
• C2H4: Typical 1.5 ± 0.5 % of concentration
on-line, intelligent gas-in-oil and moisture
H ), ethylene
2 2
equivalent)*
Page 145