Health & Safety

ISO 45001


ISO 14001

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MTE HYDROCAL 1008-3/-2/-1 Multi-Transformer Online Individual Dissolved Gas Analysis – 7 Gases & Moisture

The HYDROCAL 1008-3/-2/-1 is designed for multi-gas-in-oil analysis on a bank of up to three single adjacent phase transformers. This wall mounted system allows the individual measurement of Moisture (H2O) and the key gases Hydrogen (H2), Carbon Monoxide (CO), Carbon Dioxide (CO2), Methane (CH4), Acetylene (C2H2), Ethylene (C2H4) and Ethane (C2H6) dissolved in the transformer oil utilising a smart sampling system that samples oil from each tank via three separate oil channels.


MTE HYDROCAL 1008-3/-2/-1 Multi-Transformer Online Individual Dissolved Gas Analysis – 7 Gases & Moisture


As Hydrogen (H2) is involved in nearly every fault of the isolation system of power transformers and Carbon Monoxide (CO) / Carbon Dioxide (CO2) is a sign of degradation of the cellulosic / paper isolation the presence and increase of Acetylene (C2H2), Methane (CH4), Ethylene (C2H4) and Ethane (C2H6) further classifies the nature of a fault as overheating, partial discharge or high energy arcing.

The device can serve as a compact transformer monitoring system by the integration / connection of other sensors present on a transformer via its analogue inputs:

  • 4 Analogue inputs 0/4-20mADC
  • 6 Analogue inputs 0/4-20mADC +20% / 0-80 VAC +20%

configurable by jumpers It is further equipped with digital outputs for the transmission of
alarms or the execution of control functions (e.g. control of a cooling system of a transformer):

  • 8 digital relay outputs
  • 5 digital optocoupler outputs

For more information please refer to the HYDROCAL 1008-3/-2/-1 data sheet. If you have any further questions or would like a quotation please contact our sales team.

Additional information

Weight 80 kg
Dimensions 300 × 600 × 800 mm
Optional nominal voltages of auxiliary supply

120 V -20% +15% AC 50/60 Hz or, 120 V -20% +15% DC or, 230 V -20% +15% AC 50/60 Hz or, 230 V -20% +15% DC, Other nominal voltages on request!

Power consumption

max. 350 VA



Operation temperature (ambient)

-55°C … +55°C

Oil temperature (inside Transformer)

-20°C … +90°C

Oil pressure

0 – 800 kpa (negative pressure allowed)


Wall mounted enclosure


Designed to monitor up to three-phase transformer with separate tanks per phase

Sampling sequence

User configurable

Safety - Isolation protection

IEC 61010-1:2002 CE certified

Safety - Degree of protection

IP-55 CE certified

Product Enquiry

Please contact our sales for the product information. E-mail : [email protected]