Here we have coll­ec­ted some gene­ral ques­ti­ons about the tech­no­logy as well as the orde­ring pro­cess for you. If you have any fur­ther ques­ti­ons, just give us a call. Our cont­act per­sons will be plea­sed to help you.

Tech­no­logy FAQs

Accor­ding to which qua­lity stan­dard does HESCH work?

Since 1995 we are cer­ti­fied accor­ding to DIN EN ISO 9001 (qua­lity manage­ment), since 2003 accor­ding to DIN EN ISO 9001:2000 and since 2005 cer­ti­fied EX – equip­ment manu­fac­tu­rer.

Can the con­trol­lers also be used in the EX area?

After a detailed exami­na­tion of their requi­re­ments and, if neces­sary, their Cer­ti­fi­ca­tion of the indi­vi­dual device, use in the EX area is pos­si­ble.

Do the con­trols also come in housings?

All con­trol­lers and devices offe­red by us can be sup­plied in a housing of your choice.

Where can I find a ter­mi­nal dia­gram?

In our exten­sive down­load area we have pro­vi­ded tech­ni­cal data sheets and manu­als for all our devices, which also con­tain the ter­mi­nal dia­grams. If you have any fur­ther ques­ti­ons regar­ding the con­nec­tion of your device, please cont­act our sales team by email or phone.

How do I get a manual for my con­trol­ler or device?

In our exten­sive down­load area we have pro­vi­ded tech­ni­cal data sheets and manu­als for all our devices. If for any reason you are unable to find what you are loo­king for, please cont­act our sales depart­ment by tele­phone and they will be happy to help you.

What can I do with a defec­tive HESCH unit?

We have a high demand on the qua­lity of our devices so that you as a cus­to­mer bene­fit from the long ser­vice life.

If it should hap­pen that your device does not work pro­perly, please send the defec­tive device back to us, sta­ting the error. The more detailed you describe the faults, the fas­ter our ser­vice depart­ment can deter­mine the repair effort and thus reduce the down­time for you.


As soon as the device rea­ches us, you will receive a con­fir­ma­tion of receipt and a cost esti­mate after the visual inspec­tion.

In the event of a war­ranty claim, the unit will be repai­red within two weeks.

Order FAQs

What ser­vice can I expect from HESCH?

You receive from us

  • Solu­tion-ori­en­ted con­sul­ting
  • 100% qua­lity check
  • Engi­nee­ring + Pro­duc­tion Made in Ger­many
  • ISO stan­dard + EX cer­ti­fied
  • Excel­lent ser­vice


Our ser­vice staff offer you tele­phone sup­port in the event of tech­ni­cal pro­blems as well as assis­tance with the com­mis­sio­ning of the units.


In spe­cial cases, on-site ser­vice is also pos­si­ble. Please cont­act us. Your cont­act per­sons for all ques­ti­ons regar­ding tech­no­logy & sup­port will be happy to help you.

What do I have to con­sider when orde­ring?

In order to pro­cess your order quickly, we need pre­cise infor­ma­tion about the requi­re­ments you need, e.g. mea­su­ring range, vol­tage sup­ply, outputs/inputs and, if known, the item num­ber.

Where can I view the gene­ral terms and con­di­ti­ons?

Our gene­ral terms and con­di­ti­ons of busi­ness / deli­very can be found in the foo­ter area of the web­site under AGB.

How can I get a refe­rence list of the com­pany HESCH?

Please under­stand that we can only inform you about our refe­ren­ces after indi­vi­dual con­sul­ta­tion, as we pro­cess con­fi­den­tial data in many cus­to­mer rela­ti­onships.