Model: GE ENERGY HYDRAN H201Ci-1

Technical Specifications
MEASUREMENTS
Sensor
• Fuel cell type sensor behind a gas-permeable
membrane in contact with mineral transformer
insulating oil through a flooded manifold
• Measurement range 0-2000 ppm (volume/ volume,
H₂ equivalent)
• Measurement accuracy ± 10 % of reading ± 25
ppm (H₂ equivalent)
Relative Sensitivty
• H₂: 100 % of concentration
• CO: 15 ± 4 % of concentration
• C₂H₂: 8 ± 2 % of concentration
• C₂H₄: 1.5 ± 0.5 % of concentration
Relative Sensitivty
• 10 minutes (90% of step change)

Hydran 201Ti   PDF

The 201Ti can be connected to optional controllers to facilitate communication
with multiple units and create a local network.
• The Ci-1 controller is a one channel controller that replicates some of the human
interface functions (gas value display, alarm buttons). This is ideal when the
201Ti is mounted out of reach on an upper valve of the transformer. It also
brings down the alarm relay contacts and the analogue output for easier wiring.
• The Ci-C controller receives the gas ppm data from up to four H201Ti, providing
a single communication point for all four monitors. It has no alarm relay or
analogue output. This is ideal when protecting 3 single phase transformers + 1
spare.
It is possible to “daisy-chain” up to 32 controllers or 201Ti through their RS-485
port. The maximum chain distance (all cables added up) is 1200m (4000ft). All the
201Ti connected to any of the daisy-chained controllers can be accessed through
any controller in the local network, thus facilitating communication by only having
to fit one RS-232 modem for example.