Signal Processing Unit (SPU)

Each RTG is connected to a dedicated signal processing unit,

where the specific tank design data is stored.

The GLK-300 Signal Processing Unit (SPU) is located in safe

area and provides necessary communication and power barri

ers to the instrumentation located in hazardous area. The SPU

employs powerful processing of the data from the Radar Tank

Gauge and temperature transmitter.

AutroCAL®

Gas vapour density and mixture of gases influence the prop

agation speed of the radar signal, thus the accuracy of the

measurement. AutroCAL® utilizes multiple reference markers to

measure the speed of the signal down the tank and continuous

ly compensates level readings for a varying propagation speed.

Each pipe section is delivered with reference markers in the

flange joints. The liquid level and the markers are measured

simultaneously, and the system automatically verifies itself at

every measurement.