DDTOP GWLF guided wave radar level transmitter for petrochemical industry

GWLF can be used for measuring level or interface with 4-20mA standard current signal output. The measuring accuracy is not affected by change of density or dielectric constant of medium (in the setting range). It is easy operating and maintenance. It only needs to be entered configuration data into the instrument and no need to change the liquid level at field. So, GWLF is a new type of level (interface) measuring instrument.

Parameters of controller:

Output signal: 4 ~ 20mA or 4 ~ 20mA + HART, applicable within 3.8 ~ 20.5mA

Resolution: Analog: 0.01mA, Display: 1mm

Accuracy: 5mm or 0.1% FS for coaxial probe

Range: 600mm ~ 6000mm or 1000mm ~ 22000mm

Load resistance: Max. 650Ω(24VDC)

Damp: 0-32s adjustable

Diagnostic alarm: 3.6mA, 22mA, hold (Note: when both HART protocol and field indicator are selected, 3.6mA diagnose is not available.)

User interface: 3 keys, LCD or HART communication

Ambient temperature: -40℃ ~ 70℃ (LCD operating temperature: -20℃ ~ 70℃)

Power supply inlet: M20×1.5 or RC1/2 (female thread)

1/2″NPT (female thread)

3/4″NPT (female thread)

Enclosure material: Aluminum

Explosion-proof: Intrinsically safe Ex ia II CT2-T6

Explosion isolation + Intrinsically safe Exd (ia) II CT2-T6

Medium: Applicable to the dielectric constant between 1.4 and 100 liquid， slurry or powder materials.

Vessel: In the range of temperature and pressure are allowed by the probe, it is suitable for most process container, tank and bypass container.

Others: The level can be measured though in obvious volatile gas, medium-sticking, liquid fluctuation, bubble boiling, high frequency loading and unloading, ultra low level, complex dielectric constant or specific gravity changing statement. It is not suitable for measuring multi-layer level. We suggest that the measured liquid is clean and clear. When the emulsion layer appeared in application, please contact the manufacturer to get help in time.