Dif­fe­ren­tial pres­sure regu­la­tor with mea­su­ring line clea­ning – HE 5422 MR

Compact “2-in-1” device facilitates installation and eliminates the need to coordinate between a differential pressure regulator and a separate measuring line cleaner


Permanently prevents possible incorrect measurements


Parameterization either via the device keys or with PC software EasyTool Controls


Can be used worldwide thanks to wide-range power supply 100 - 240 V AC and 24 V DC supply


Approval for ATEX zone 22




Produkt anfragen



Dif­fe­ren­tial pres­sure regu­la­tor with mea­su­ring line clea­ning

The HE 5422 MR is a dif­fe­ren­tial pres­sure regu­la­tor for dif­fe­ren­tial pres­sure ran­ges of 0…35 mbar, 0…90 mbar or 0…450 mbar. As a high­light, the 2-in-1 solu­tion also comes with inte­gra­ted mea­su­ring line clea­ning. This per­ma­nently pre­vents pos­si­ble incor­rect mea­su­re­ments. Tem­pe­ra­ture fluc­tua­tions at the place of use often cause con­den­sa­tion in the mea­su­ring lines.

The inter­nal test lead clea­ner relia­bly flus­hes the test leads at spe­ci­fic inter­vals. The com­pact “2-in-1” device faci­li­ta­tes instal­la­tion and eli­mi­na­tes the need to coor­di­nate bet­ween the dif­fe­ren­tial pres­sure regu­la­tor and a sepa­rate mea­su­ring line clea­ner.


The wide range power sup­ply for 100 – 240 V AC, as well as for 24 V DC allows the dif­fe­ren­tial pres­sure con­trol­ler to be used world­wide. The con­trol­ler is set eit­her via the mem­brane key­pad directly on the device or via ser­vice PC using the USB/TTL adap­ter (option) and the ” Easy­Tool Con­trols” soft­ware.


The clea­ning range of the com­pact con­trol­ler is defi­ned by a lower and an upper thres­hold. For auto­ma­tic mea­su­ring line clea­ning, a time inter­val can be freely defi­ned in which the mea­su­ring lines are blown free by means of com­pres­sed air with a pre­de­fi­ned blo­wing and reco­very time. For both the ope­ra­tion of the con­trol­ler and the dis­play of the mea­su­red values, the HE 5422 MR is equip­ped with a three-digit 7-seg­ment dis­play, five keys and LEDs.

Technical data

HE 5422 MR
Mea­su­ring rangeMaxi­mum of 35 mbar (90 or 450 mbar on request)
Maxi­mum dif­fe­ren­tial pres­sure 160 mbar
Basic accu­racy± 1% of final value
Tem­pe­ra­ture drift ± 0.05% / K of final value
Hys­te­re­sis ± 0.5% of final value
Inten­ded useDif­fe­ren­tial Pres­sure Regu­la­tor with inte­gra­ted Mea­su­ring Hose Clea­ning used to con­trol the clea­ning of indus­trial fil­tra­tion plants
Sup­ply vol­tage•   100 – 240 VAC ±10%
•   24 VDC ±10%
Power con­sump­tionMax. 30 W
Dis­play7-seg­ment dis­play, 3 digits, 14mm high, red for dif­fe­ren­tial pres­sure dis­play, para­me­ter values and alarm mes­sa­ges
LEDs•   7 LEDs for sta­tus indi­ca­ti­ons
•   16 LEDs for dif­fe­ren­tial pres­sure indi­ca­ti­ons
Ana­lo­gue out­put•   4…20 mA
•   gal­va­ni­cally iso­la­ted
•   Max. per­mis­sa­ble load: 400 Ω
Digi­tal inputsStart, post clea­ning. Intern­ally sup­plied by 24 VDC / 1 mA
Relay out­puts•   1 change-over cont­act 250 VAC, 5 A as a com­bi­ned ope­ra­ting and    fault indi­ca­tor
•   1 NO cont­act 250 VAC, 5 A as a clea­ning indi­ca­tor
•   2 change-over cont­acts 250 VAC, 5 A as alarm indi­ca­tors
Inter­faces USB Device, Type B for rea­ding and wri­ting of para­me­ters (USB / TTL adap­ter requi­red)
Cree­page distances and cle­aran­ces•   Con­ta­mi­na­tion Class 2
•   Over vol­tage Cate­gory II
•   Inter­fe­rence emis­sion: DIN EN 61000-6-4
•   Inter­fe­rence immu­nity: DIN EN 61000-6-2
Housing•   ABS (acrylo­ni­trite-buta­diene-sty­rene)
•   IP 65 Pro­tec­tion Class
•   Dimen­si­ons: 200 mm × 150 mm × 100 mm (W × H × D)
Cable glands•   1 × M25 with mul­ti­ple seal­ing insert for 4 liens with 6 mm     dia­me­ter
•   1 × M20 for sup­ply and com­mu­ni­ca­tion
Elec­tri­cal con­nec­tions•   Power sup­ply: rigid/flex cross-sec­tion 2.5 mm²; flex.: max. 1.5 mm² with    wire and fer­rule
•   Rest: rigid/flex cross-sec­tion 1.5 mm²; flex.: max. 0.75 mm² with    wire and fer­rule
Tech­ni­cal Data
Pneu­ma­tic con­nec­tions•   Pres­sure mea­su­ring line: 2x push-in bulk­head con­nec­tor for Ø6 mm hose
•   Blo­wing pres­sure con­nec­tion: 1 × push-in bulk­head con­nec­tor for Ø8 mm-
•   Maxi­mum blo­wing pres­sure: 8 bar
Instal­la­tionWall moun­ting, moun­ting posi­tion, ver­ti­cal
Ambi­ent con­di­ti­ons
  Sto­rage- 20°C…+ 70°C
  Trans­port - 40°C…+ 85°C
  Ope­ra­tion•   - 20°C…+ 50°C
•   in EX zone: -20 °C...+40 °C
  Rela­tive humi­dityRela­tive humi­dity 95%, no con­den­sa­tion allo­wed, KUF in accordance with DIN 40400

Errors and omis­si­ons excepted


Ope­ra­ting Ins­truc­tions HE 5422 MR – Ger­man

Ope­ra­ting Ins­truc­tions HE 5422 MR – Eng­lish


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