M&C TechGroup ECP20-2 Operator's manual - Manual (Page 11)

11
Gas sampling and gas conditioning technology 3-1.10-ME
The electronic control system with status indication and the power supply unit are housed in a
protective aluminium enclosure on the front panel of the cooler.
There are three LED status indicators :

Upper red LED "°C >" = Temperature alarm > +8°C

Central green LED "On", lights or pulsates = Cooler on

Lower red LED "°C <" = Temperature alarm < +2°C
The green LED alone indicates that the specifications with regard to dew point temperature and dew
point stability are achieved. The red LED lights to indicates that the control system has deviated from
the setpoint by more than 3°C. The upper red LED "°C >" lights up to indicate an overload, i.e. more
cooling capacity is being called for than is available. The ECP20 Electric Gas Cooler is overload-
protected. In an overload condition the dew point temperature will rise proportional to the overload.
An over and under temperature alarm as a status group alarm is available for external indication, via a
relay output with a volt free relay changeover contact. The alarm thresholds are 3°C above and below
the control temperature.
The gas inlet and outlet is located on the top of the cooler and is indicated by arrows on the EC Jet-
Stream heat exchangers. On standard models with Duran glass heat exchangers the gas connections
are provided with GL18-6 mm PTFE sealing rings and on stainless steel or PVDF exchangers with
G1/4" female threads (or 1/4" NPT as optional).
The condensate drain of the EC Jet-Stream heat exchangers are located beneath the cooler and have
GL25-12 mm PTFE sealing rings as standard on the Duran glass heat exchangers. And on stainless
steel or PVDF exchangers with G3/8" female threads (or 3/8" NPT as optional).
The type of condensate discharge used will depend on the type of operation:

Peristaltic Pump Type SR25.1 for automatic condensate discharge in vacuum and pressurised
operations.

Automatic Float Condensate Discharge Type AD- .. for pressurised operation only.

Condensate Collection Vessel Type TG../TK.. with manual drain.
Option: Liquid alarm sensor LA..
For protection against liquid breakthrough and to increase the dependability of the complete system
we recommend the use of a liquid or condensate alarm sensor Type LA../KS.. with correspondingly
electronics mounted extern into the sample line between the cooler and the analyser.