2291 Contacting Radar Level Transmitter

Level Sensors | Radar Level Transmitters

SPECIFICATION | CAD DRAWING

• 19° beam angle
• Large LCD display
• Tank mapping function

The 2291 Guided Wave Radar level transmitter is designed for continuous level measuring of conductive or non-conductive liquids, pulps and solids. The 2291 level gauge operates based on the well-known TDR (Time Domain Reflectometry) principle. Micropulses are sent along a probe guide at the speed of light. As soon as the impulse reaches the surface of the medium, it is reflected back to the electronic module. Level distance is directly proportional to the flight time of the impulse. The reflected signal is dependent on the dielectric constant of the material; the feasibility of the measurement is εr ≥ 1.9. The TDR technology is unaffected by the properties of the medium as well as that of the space above it. Measurement is also unaffected by the change in the physical properties of the materials such as temperature, pressure, dielectric constant.

Features of the+GF+ Signet 2291 Contacting Radar Level Transmitter include:

Measuring range up to 6m (19.6 ft)
Accuracy: ± 5 mm (0.2 in)
PP / PFA coated probes available on request
Rod & cable versions available
Minimum εr 1.9
2-wire version
Graphic LCD display
4-20 mA + HART output
Medium temperature range: -30 °C… +90°C (-22 °F… +194 °F)
Maximum process pressure: 40 bar (580 psi)
IP67 protection

Typical Applications:

Inventory tanks
Day tanks
Process vessels for mixing & batching
Buffer tanks
Bypass applications (requires calibration)
Stilling-wells
Powders
Slightly conductive foams
Low dielectric constant liquids

GF 2291 Contact Radar Level Sensor

Brand: +GF+

Part Ref: 2291-x-xx-x
IWN: LEV-003902

Category: Level Sensors, Radar Level Transmitters

The +GF+ 2291 Guided Wave Radar level transmitter is designed for continuous level measuring of conductive or non-conductive liquids, pulps and solids.

Specification Detail of the Signet 2290 Non-contacting Radar Level Transmitter:

Measured values
Level, Distance; Calculated values: Volume, Mass

Measuring range
0.2 m – 18 m (0.65 ft – 59 ft) (depending on r of the process liquid)

Accuracy
+/- 3 mm (0.1 inch)

Process Temperature
-30 °C… +100°C (-22 °C… +212°C),(up to 120 °C (248 °F) for max. 2 min); with PP antenna enclosure: max.: 80 °C (176 °F)

Process Pressure
25 bar at 120°C (248 °F); with plastic antenna enclosure: 3 bar at 25 °C (77 °F)

Measuring frequency
10…60 sec as per the application settings

Housing
Plastic (/PBT)

Beam Angle
Minimum 19°

Ingress Protection
IP 67

Process Connection
DN40 / 1 ½” BSP, 1 ½” NPT“ thread

Outputs
4 – 20 mA + HART

Power Supply
20 V …36 V DC

General Approvals
ATEX (ia): II 1/2 G Ex ia IIB T6…T5 Ga/Gb, ICEX (ia): EX ia IIB T6…T5 Ga/Gb, CE, FCC