Suited to continuous level measurement of various liquid, mush and bulk-solid materials
- Radar level meter with guided wave
- Universal use, direct mounting into containers, silos, vessels, reservoirs, etc.
- Quick view measured values on the display
- Level measurement of aggressive liquids
- Linear measurement in non-conductive and in differently shaped containers
- Current output (4 … 20 mA), HART protocol ®
The GRLM® radar level meters are compact measurement devices including an transmitter of microwave pulses, central processor unit and display module. The electronics transmits very short electrical pulses (0.5 ns), which are linked to a onewire transmission line (measuring electrode). Measuring electrode can be created of rod or rope. The pulse propagates along the electrode in the form of electromagnetic wave toward the level surface, where it is partly reflected and the reflected component is returned to the receiving module of the electronics. The electronics measures the time of flight of electromagnetic wave and the instant distance to the surface level is calculated. According to the level height, the level meter output is set and the measured value is displayed on the display. Radar level meters are resistant against changes in the atmosphere (pressure, temperature, dust, steam) and to changes in medium parameters (change in dielectric constant, conductivity).
GRLM–70_–00 without electrode, the electrode is made by customer (only variant 10 or 30) and connected to the electrode junction by M8 thread.
GRLM–70_–10 Uncoated stainless steel rod electrode, for level measurement liquids and bulk solid materials (water, water solutions, emulsion, oils, diesel, flour, sand, granulates, etc.). Maximum electrode length 8 m.
GRLM–70_–11 Fully coated stainless steel rod electrode (PFA Teflon®), for level measurement of aggressive liquids and very pure liquids. Maximum electrode length 2 m.
GRLM–70_–12 Fully coated stainless steel rod electrode (FEP Teflon®), for level measurement of aggressive liquids and drinks. Maximum electrode length 2 m.
GRLM–70_–20 Uncoated stainless steel rod electrode with reference tube, for accurate level measurement of liquids in cramped spaces. Maximum electrode length 3 m.
GRLM–70_–30 Uncoated stainless steel rope electrode and weight, for level measurement of liquids and bulk solid materials (water, grains, sand, flour, cement, etc.) in higher silos, vessels, reservoirs. Maximum electrode length 40 m.
GRLM–70_–32 Fully coated stainless steel rope electrode and coated weight, for level measurement of aggressive liquids and very pure liquids. Maximum electrode length 12 m.
GRLM–70_–33 Uncoated stainless steel rope electrode with anchorage, for level measurement of bulk solid materials (grains, flour, cement, etc.) in higher silos, vessels. Maximum electrode length 40 m.