Radiowave. Up to 30 m. Interfaces SENS, RS-485 (Modbus RTU), 4-20 mA (HART).
Specifications
| Interfaces (protocols) | SENS (SENS); RS-485 (Modbus RTU); 4-20 mA (HART) | ||
|---|---|---|---|
| Maximum measured distance1), mm | 30 000 | ||
| Minimum measurable distance2), mm | 300 | ||
| The minimum measurable level of the medium in the tank3) 4) 5), mm | 500 with weak signal reflection (1.8 ≤ Ɛ ≤ 4); 100 with normal signal reflection (4 < Ɛ ≤ 40); 0 for strong signal reflection (Ɛ > 40) | ||
| Limits of permissible basic error of level measurements for digital coded output signals, mm | ±1 (±2 - on order) | ||
| Limits of permissible basic error of converting the measured level value into a current signal for a level transmitter with a current output of 4-20 mA, % of the range of output current change | ±0.05 | ||
| Level measurement resolution, mm | 0.5 | ||
| Number of measurements per second, not less than | 1 | ||
| Time to establish the operating mode, minutes, no more | 2 | ||
| Permissible supply voltage, V | 7 to 50 (DC) | ||
| Reverse polarity protection | yes | ||
| Power consumption, W, no more | 1 | ||
| Ambient temperature range, ℃ | -50 to +85 | ||
| Operational media temperature6), ℃ | -50 to +80 (without insulating insert);
-50 to +190 (with insulating insert) | ||
| Working pressure, MPa, no more | 2.57) (without insulating insert); 0.3 (with insulating insert) | ||
| Relative permittivity of the medium Ɛ, not less than | 1.8 | ||
| Average size of fractions (granules) of loose medium, mm, no more | 8 | ||
| Water and dust ingress protection degree as per IEC 60529 | IP66 | ||
| Explosion protection marking | Ga/Gb Ex d IIB T6...Т3 X | ||
| Group of mechanical design according to GOST 30631 in terms of resistance to mechanical external influencing factors | М6 | ||
| Operating range of radiated frequencies, GHz | from 118 to 140 | ||
| Equivalent isotropically radiated power in the operating range of radiated frequencies, W, not more than | 3 | ||
| Width of the measuring beam, deg, no more | 4 | ||
| Mean time between failures, h, not less than | 100 000 | ||
| Assigned service life, years | 15 | ||
| Weight, kg, no more | 17 | ||
Notes. 1) From the plane of the sealing surface of the mounting device to the surface of the controlled media. 2) From the plane of the sealing surface of the mounting device to the surface of the controlled medium. 3) The minimum distance from the bottom of the tank to the surface of the controlled medium. 4) Depends on the reflectivity of the controlled medium, determined by its relative dielectric constant Ɛ. 5) If there is a separation of media or sediment in the tank, the minimum measured level is counted from them. 6) For explosion-proof design, the maximum temperature is limited by temperature class. 7) The specific value of the working pressure is determined by the type of fastening device | |||