Project Description
FMCW 80GHz Radar Liquid Level Transmitter (Small Tank Version)
SKR800NS
Benefits
80GHz FMCW technology
Liquid application, specialized for Small Tank
Measuring range: up to 20 m
Accuracy: ±2 mm
Narrow emitting angle: 5°
PTFE sealed lens, not affected by deposits/condensate water
Small antenna size (G 3/4), easy to set and install
Light weight and small size
Support small batch OEM service
Working principle
Frequency modulation continuous wave (FMCW) technology is adopted in the object level meter of the Radar Liquid Level Transmitter. The continuous wave with frequency variation is transmitted within a certain period, and the echo reflected by the object has a certain frequency difference with the transmitted signal. The distance information between the target and the radar can be obtained by measuring the frequency difference.
Radar Liquid Level Transmitter, as a new industrial level measuring instrument, has the characteristics of high-temperature resistance, high-pressure resistance, vacuum resistance, strong penetration, temperature, steam, dust, and other effects.
Applications
The SKR800NS is a Radar Liquid Level Transmitter for continuous level measurement, especially in Small Tank/Vessels. 
Application Cases
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| Model | SKR800N | SKR800NS | SKR800H |
| Product Type | FMCW Radar Level Transmitter | FMCW Radar Level Transmitter | FMCW Radar Level Transmitter |
| Application | *Simple liquid Measurement (exp: water) *Standard liquid measurement (exp: Corrosive chemical) *Simple solid measurement |
*Simple Liquid Measurement *small-sized antenna, lightweight *Suitable for small-sized tank/vessel |
*Standard Bulk Solid Measurement *Large range water measurement *Suitable for Narrow tank, silo, vessel. |
| Frequency | 77GHz-81GHz | 77GHz-81GHz | 77GHz-81GHz |
| Measurement Range | Liquid: 0.2-30m (0.6 ft – 98 ft) Solid: 0.2-15m (0.6 ft – 49 ft) |
Liquid: 0.2m-20m (0.6 ft – 65 ft) | Solid: 0.2-60m (0.6 ft – 198 ft) Liquid: 0.2-60m (0.6 ft – 198 ft) |
| Accuracy | ±2mm for liquid ±5mm for solid |
±2mm | ±5mm for solid ±2mm for liquid |
| Beam Angle | 3° | 5° | 1.5° |
| Antenna Material | SS 304/Sealed PTFE | SS 304/Sealed PTFE | SS 304/Sealed PTFE |
| Process Connection | Thread G 2 1/2 ; Flange from DN80 |
Thread G 3/4 ; Flange From DN32 |
Thread M130*2 ; Flange from DN100 |
| Process Temperature | -40°C to +60°C (-40 to +140 °F) | -40°C to +60°C (-40 to +140 °F) | -40°C to +60°C (-40 to +140 °F) |
| Process Pressure | Normal atmospheric pressure | Normal atmospheric pressure | Normal atmospheric pressure |
| Signal output | 4-20mA/RS485(Modbus – RTU) | 4-20mA/RS485(Modbus – RTU) | 4-20mA/RS485(Modbus – RTU) |
| Power | Two-wire DC 24V (22V~30V) | Two-wire DC 24V (22V~30V) | Two-wire DC 24V (22V~30V) |
| Explosion-proof | Exdia II CT6Gb | Exdia II CT6Gb | Exdia II CT6Gb |
SKR800NS Radar Liquid Level Transmitter Technical Data
| Application | Liquid Measurement |
| Frequency | 77GHz-81GHz |
| Measurement Range | 8m, 15m, 20m |
| Antenna Material | PTFE |
| Installation | Thread G 3/4 / Flange Start from DN32 |
| Process Temperature | -40℃~+60℃ |
| Process Pressure | Normal atmospheric pressure |
| Accuracy | ±2mm |
| Beam Angle | 5° |
| Signal output | 4-20mA/HART, Rs 485-Modbus |
| Power | <0.5W (two-wire) |
| Explosion-proof | Exdia II CT6Gb |
| SK-R800NS | Radar Liquid Level Transmitter | ||||||
| Code | Medium Type | ||||||
| L | Liquid | ||||||
| Code | Measuring Range | ||||||
| 3~30 | 3m、8m、15m、20m | ||||||
| Code | Connection | ||||||
| G | G Thread | ||||||
| N | NPT Thread | ||||||
| X | Customize | ||||||
| Code | Temperature | ||||||
| N | -40-60°C | ||||||
| Code | Electric Interface | ||||||
| M | M20×1.5(F) | ||||||
| N | 1/2 NPT(F) | ||||||
| Code | Communication | ||||||
| M | Modbus | ||||||
| H | Hart | ||||||
| SK-R800NS | L | 10 | G | N | M | H | |
