Schiaramento/annotazione:Manometric. For controlling, signaling and two-position control of pressure of liquid and gas mediums, non-aggressive to steel and brass in explosible premises.
Descrizione del marchio dettagliata:For refrigerating installations of coals mine, as well as outdoor installations, where can are to generated explosive mixture.
Has the type of protection "the âçðûâîïðîíèöàåìàÿ sheath" and the marking "ÐÂ-IÂ," IExdIIBT4X ".
The return zone of Ä21ÂÌ-1-01 point in directions of pressure raise of controlled medium relating to setting, Ä21ÂÌ-2-05 - downwards.
The appliances contacts are calculated on work:
In DC circuits by the stress 24Â, undercurrent 0, 1 on load up to 60Âò;
In AC circuits by the stress 220Â, frequency 50 (60) Hz on load from 0, 1À up to 6À.
Operation in tropical climates in case of ambient-air temperature from minus 40 up to plus 70°Ñ and relative humidity up to are designed for 100%.
Overall dimensions, mm - 203õ200õ83.
Mass, kg - 2, 5.
Protection of êîðïóñà-IP67.
The controllers of refigerant, oil, air and other environments are supplied with spoke nipple from brass (the arrangment 1); for ammonia - with spoke nipple of steel (arrangment 2).
Depending on fashion of field work of adjustment of instrument are supplied in arrangments: 1 - with patch panel;
2 - without patch panel.
Are replaced Ä21Â. |
D21VM-2-05