Guided-wave radar (TDR) level transmitter — measures liquid, slurry, paste or solids level by sending microsecond microwave pulses down the probe and timi.
Guided-wave radar (TDR) level transmitter — measures liquid, slurry, paste or solids level by sending microsecond microwave pulses down the probe and timi.
| Technology | time-domain reflectometry, 1.0 GHz frequency band |
| Accuracy | ±3 mm or ±0.03 % of measured distance (whichever greater) |
| Resolution | 1 mm |
| Minimum dielectric | εr ≥ 1.6 (liquids), εr ≥ 1.4 (solids w/ algorithm) |
| Measurement range | per probe length |
| Process pressure | -1 to +40 bar (probe-dependent) |
| Process temperature | -40 to +200 °C |
| Outputs | 4-20 mA + HART 7 + Modbus RTU + 2 × relay |
| Power | 24 V DC two-wire (loop powered) |
| Enclosure | IP66/IP68 aluminium |
| Approval options | ATEX/IECEx Ex ia IIC T6, SIL2 per IEC 61508 |
| Material | 316L probe / PEEK seals |
| MOQ | 1 pc |
Form-fit feature envelope of Endress+Hauser Levelflex FMP51/FMP54, Rosemount 5300/5400 series, Siemens SITRANS LG250/LG260, VEGA VEGAFLEX 81/83/86 and Krohne OPTIFLEX 1300/2200/3200 guided-wave radars.