New gas coolers eliminate thermal problems

The removal of mois­ture is an essen­tial step in extrac­tive sam­ple gas con­di­tion­ing sys­tems. How­ev­er, this process gen­er­ates exces­sive heat inside the cab­i­nets and thus very often requires addi­tion­al efforts like air conditioning.

The new gas cool­er series TC- kit (+) from Büh­ler Tech­nolo­gies elim­i­nates these extra efforts. Pelti­er ele­ments as tem­per­a­ture trans­mit­ter are the mid­dle part of a sand­wich con­sist­ing of a heat sink with inte­grat­ed fan form­ing the out­er part and a cool­ing block with exchange­able heat exchang­ers and the attached elec­tri­cal ter­mi­nals as the inner part. For the instal­la­tion a cut out has to be made at the appro­pri­ate side wall of the cabinet.

With the heat sink geo­met­ri­cal­ly larg­er as the inter­nal parts, the unit slides into the cut out and final­ly is attached to the out­side wall of the cab­i­net and sealed by a gas­ket. The elec­tri­cal leads and the sam­ple gas lines are kept inside the cab­i­net where­as the ther­mal load is dis­si­pat­ing to the ambi­ent keep­ing the inside of the cab­i­net con­sid­er­ably cooler.

The pro­tec­tion class of the mount­ed unit is IP 54.

The TC Kit (+) requires 24VDC as pow­er sup­ply. As an option an exten­sion unit for 115/ 230V AC sup­ply is avail­able and will be sad­dled direct­ly to the basic unit. This exten­sion also pro­vides all nec­ces­sary con­nec­tions to aux­il­liary units like sam­ple gas and con­den­sate pumps as well as mois­ture detec­tors and heat­ed sam­ple lines.

The oper­a­tion para­me­ters and alarm set­tings are pro­gram­ma­ble by a remote con­troller with dig­i­tal dis­play. This con­troller can be installed at an appro­pri­ate place inside the con­di­tion­ing cab­i­net. The TC Kit+ ver­sion com­pris­es spe­cial heat exchang­ers with min­imised wash out effect as required by EN 15267–4 suit­able for auto­mat­ed emis­sion mon­i­tor­ing (AMS) systems.