WATER LEVEL RADAR SENSOR RL-15 / RL-35

CONTACT-FREE WATER LEVEL MEASUREMENT

The RL-15 / RL-35 is a highly accurate measuring device to measure the surface water level without direct contact to the medium.

FEATURES AND ADVANTAGES

Contact-free, maintenance-free system
Measurement range: 15 m resp. 35 m
Near blanking zone: 0.5 m
High accuracy: +/- 2 mm
Compact design
Independent of environmental influences (e.g. temperature, wind)
Easy integration into existing systems
Vandalism secure design does not attract attention
Interfaces: 4 to 20 mA, SDI-12 is available as an option

Description

MEASURING PRINCIPLE

The so-called pulse procedure sends a short microwave impulse to the water surface. Afterward, the sensor remains on standby for a short time. Within this time the water reflects the pulses to the integrated evaluation system. The run time of the impulses corresponds directly to the distance to the current surface water level.

TECHNICAL DETAILS

GENERAL

Dimensions 153 mm x 325 mm x 200 mm
Operating temperature -40 … 80°C
Power supply 9.6 … 36 VDC
Measurement frequency 26 GHz (K-Band)
Total weight 3 kg

LEVEL MEASUREMENT

Measurement range 0 … 15 m / 0 … 35 m
Resolution 1 mm
Accuracy +/- 2 mm
Near blanking zone 0.5 m
Holdback time 60 s (after power on)
Step response time < 3 s (time after a sudden change in the measured distance to max. 0.5 m)
Output 4 … 20 mA = 0 …15 m / 0 … 35 m