hour mechanical counter

Descripción del producto

he HM series counts a machine to belong to electromagnetism type structure, its structure is novel, clever, accuracy Gao, function stability credibility, life span long, orientation environment wide, the price is low, usage convenience.When it is applicable to standard industry to account most , extensively applied at the engineering machine, generator, empty press machine, water pump, go a car, hoist, various type car etc. total amount of actual work time charge with follow keep watch on an investigate of precise instrument equipments to maintain a period to provide science ***** alternate current, it then starts record a work for time, this timer is divided into the **0V *0 Hzs and **0V *0 Hzs two kinds of serieses, at in the middle of the usage it of walk the speed be completely related with the frequency of alternate current and be the alternate current as *0 Hzs, records a word(namely the word once rotated a word) for an hour, be the alternate current as *0 Hzs, an hour, the round also records a word and strictly speak that the error margin of alternate current frequency is it of error margin, the standard provision counts the error margin of machine as add or subtract1%.The total amount record of this timer can reach to for ****9.*9 hours.