In situ visualization of hydrothermal processes in process water cycles with the D-System.

Sales start: D‑System

When hotset in­tro­duced its mo­bile D‑system for in­stant analy­sis of ther­mo­hy­draulic events in tech­ni­cal wa­ter cir­cuits in 2019, it ini­tial­ly caught the at­ten­tion of in­jec­tion mold­ers. In the mean­time, how­ev­er, process en­gi­neers from oth­er in­dus­tries have al­so shown keen in­ter­est in the flex­i­bly de­ploy­able in-situ mea­sur­ing in­stru­ment. The Ger­man com­pa­ny is now pre­sent­ing the next gen­er­a­tion of the da­ta log­ger: net­work-com­pat­i­ble, with a col­or 7‑inch touch screen and de­signed for bat­tery operation.

With its mo­bile D‑system, hotset of­fers an ex­treme­ly flex­i­ble and easy-to-use mea­sur­ing de­vice for in-situ analy­sis of the en­er­gy bal­ance of process wa­ter cy­cles. Wher­ev­er wa­ter is cir­cu­lat­ing as a func­tion­al medi­um, it en­ables the rapid check­ing and vi­su­al­iza­tion of flow rate, tem­per­a­ture curve and pres­sure dif­fer­ences. The D‑System can be used for trou­bleshoot­ing, fine-tun­ing flu­id tech­nol­o­gy process­es, or mon­i­tor­ing as part of qual­i­ty as­sur­ance — to name just a few ex­am­ples. “Wa­ter is used in in­dus­try as a coolant and heat­ing medi­um, as a trans­port and hy­draulic flu­id, as an op­er­at­ing and dri­ve medi­um, and even as a fu­el com­po­nent. As an in­stru­ment for process op­ti­miza­tion or a mo­bile ser­vice tool, our D‑system can there­fore pro­vide valu­able ser­vices in many in­dus­tries,” says hotset project man­ag­er René Schlöter.

When hotset in­tro­duced the D‑system to the mar­ket about two years ago, it was ini­tial­ly aimed at mold­mak­ers in in­jec­tion mold­ing tech­nol­o­gy. The rea­son: The en­er­gy bal­ance of the wa­ter cir­cuits is an im­por­tant qual­i­ty fac­tor for the tem­per­a­ture con­trol sys­tems of the molds. The more in­jec­tion mold­ers and mold­mak­ers know about this, the more pre­cise­ly they can de­sign the tem­per­a­ture con­trol sys­tem. This is pre­cise­ly where the D‑system comes in, by pro­vid­ing users with the mea­sure­ment da­ta they need to eval­u­ate the en­er­gy flows of their wa­ter cir­cuits. René Schlöter ex­plains, “The sen­sors of our da­ta log­ger de­ter­mine the flow­ing wa­ter vol­ume, the sup­ply and re­turn tem­per­a­ture ∆T, and the sup­ply and re­turn pres­sure ∆P. From this, all rel­e­vant pa­ra­me­ters for the en­er­gy that a process or sys­tem with­draws from or adds to the wa­ter cir­cuit are calculated.”

As a measurement and visualization tool the D-System is used, for example, in the inspection and design of water circuits in injection molds, in cold water hydraulics, heating technology or drive technology.

Mul­ti­ple graphs can be dis­played syn­chro­nous­ly: hotset’s D‑system cal­cu­lates and vi­su­al­izes the hy­draulic and ther­mal process­es in tech­ni­cal wa­ter cir­cuits. The out­put of the ac­quired da­ta is done via Mi­crosoft Excel.

Op­ti­mal­ly vi­su­al­ized and networked
In re­sponse to the high de­mand and pos­i­tive feed­back from cus­tomers, hotset has ac­cel­er­at­ed the fur­ther de­vel­op­ment of the D‑system and can now — much ear­li­er than planned — present the next mod­el gen­er­a­tion of its da­ta log­ger for hy­draulic-ther­mal process vi­su­al­iza­tion. It scores with nu­mer­ous new fea­tures and func­tions that op­ti­mize mo­bile use, fa­cil­i­tate the in­ter­pre­ta­tion of mea­sure­ment da­ta and make doc­u­men­ta­tion more con­ve­nient. The most vis­i­ble in­no­va­tion is the large 7‑inch touch screen, which — in con­trast to the pre­vi­ous two-line dis­play — en­ables the col­or and syn­chro­nous vi­su­al­iza­tion of sev­er­al progress curves or graphs in MS Ex­cel for­mat. This alone great­ly sim­pli­fies the process-ori­ent­ed eval­u­a­tion of mea­sure­ment re­sults. All record­ed da­ta can be saved, doc­u­ment­ed and com­pared at in­ter­vals — even with oth­er eval­u­a­tion process­es. In all this, the new W‑LAN and LAN in­ter­faces sup­port con­ve­nient net­work con­nec­tion of the D‑system as well as ac­cess to the touch screen for vi­su­al­iza­tion of the mea­sure­ment da­ta on the PC or smart­phone. In ad­di­tion, process­es can be logged and syn­chro­nized, where­by lim­it val­ue vi­o­la­tions can be out­put, for example.

An­oth­er im­prove­ment is the pos­si­bil­i­ty to op­er­ate the D‑system now al­so in bat­tery mode. This gives the user of the da­ta log­ger max­i­mum mo­bil­i­ty and means that it can now be used in­de­pen­dent­ly of the 230-volt mains con­nec­tion, even out­doors and in ex­ten­sive plants. Bat­tery op­er­a­tion is al­so a big plus for the use of the D‑System as a mo­bile tool by ser­vice and MRO teams.

Great po­ten­tial
The D‑system is al­ready be­ing used to check both new and re­fur­bished wa­ter sys­tems (and their tub­ing) as well as for hy­draulic bal­anc­ing of tem­per­a­ture-con­trolled tools. In its new ver­sion, it should now open up many oth­er ar­eas of ap­pli­ca­tion. Thanks not least to its ease of use and com­pact de­sign — it con­sists on­ly of the touch screen and a small mea­sur­ing mod­ule ¬- it could even es­tab­lish it­self in many places as a stan­dard tool for track­ing and vi­su­al­iz­ing the hy­draulic-ther­mal process­es of wa­ter en­gi­neer­ing cir­cuits. “Based on the mea­sure­ment and cal­cu­la­tion re­sults of our da­ta log­ger, users in pump con­struc­tion, clear wa­ter hy­draulics, tem­per­a­ture con­trol tech­nol­o­gy, heat­ing tech­nol­o­gy, tool­mak­ing and many oth­er in­dus­tries, for ex­am­ple, can eval­u­ate the en­er­getic re­ac­tions of their wa­ter cy­cles and op­ti­mize their sys­tems ac­cord­ing­ly,” ex­plains hotset project man­ag­er René Schlöter. In do­ing so, the D‑System al­ways de­liv­ers an im­me­di­ate­ly ef­fec­tive con­tri­bu­tion to re­duc­ing the op­er­at­ing costs of a plant or ma­chine. As an in­stru­ment of pre­ven­tive main­te­nance, it can al­so be used to iden­ti­fy hid­den changes in wa­ter tech­nol­o­gy process­es — for ex­am­ple, due to pre­ma­ture pump wear or in­tro­duced dirt particles.

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