When developing the MT-housing and public utilities this sensor special requirements at mass installation on objects of housing and public utilities with an intertesting interval of 5 years were considered: high reliability, the increased overload capacity and noise immunity, low cost, the small sizes, high degree of protection against influence of water and dust. The sensor is convenient for mounting, is not critical to change of polarity at connection, has the DIN 43650 connector, and also the possibility of adjustment "0" is provided in each sensor. Are used as pressure sensors of water, air, etc.
The sensor of excessive pressure of MT-ZhKH, is intended for continuous and uniform transformation of pressure of liquids, gas, steam and тд., in the unified current output signal 4-20 mA. The sensor works with the showing and data-acquisition equipment, regulators, in systems of automatic gaging, in nodes of the heataccount and other devices of automatic equipment.
For installation of the sensor we recommend to use specially developed switching instrument KPM-3 module having a cap nut drainage (drain valve) the valve and the valve of dumping. Detailed information on the module is in the section "Auxiliary equipment".
Measurement of parameters of the sensor is performed by the techniques stated in MI 1997-89, but with connection of external chains to terminals 1-2 sensors.
To make setup of the sensor steps as follows:
For fine tuning "0" and range in some modifications of sensors can the debugging OM-1 module is required. Concerning acquisition of the module address to sales department.
|Measuring range: excessive pressure||from 0,6 MPas to 2,5 MPas|
|Limit main blundered||± 0,5% with the accounting of a complementary temperature error with all operating temperature range.|
|Resistance to climatic influences:||+5 °C +50 °C.|
|Temperature of the measured environment:||- 10 °C +120 °C.|
|Degree of protection against water and dust||IP65 in accordance with GOST 1425.|
|Relative humidity of air||to 95% at 35 °C.|
|On resistance to mechanical influences sensors correspond||to execution of VI in accordance with GOST 12997-84.|
|Output signal||4-20 mA.|
|Supply voltage||15-42 V.|
|Mass of the sensor||no more than 0,2 kg|
|It is long the sensor||110 mm.|
|Body diameter||25 mm.|
|Average term of service||15 years.|
|Threaded connection||M12x1,5, M20x1,5, G1/2|
|Vibration resistance, vibration strength||10G.|
|Case material||AISI304 stainless steel.|
|Union material||LS59 brass.|
|The measured environment:||air, water.|
|Intertesting interval||5 years.|
|Electric accession||DIN 43650.|