Non-contact Radar Level Transmitter

Non-contact Radar Level Transmitter – Overview

This rugged, high-performance radar level measurement sensor has a transducer and processing electronics incorporated in one. It is suitable for single and multiple-tank applications. 2-wire sensors are recommended using either HART protocol or 4 to 20 mA for direct communication with a panel mount controller or a PLC. This is used for liquid level measurement in sumps or tanks, for tank volume measurement, or open channel flow measurement. Sensing ranges up to 20 m (66 ft) are available. PP and PVDF sensor bodies provide the best chemical resistance in applications where concentrated chemicals need to be detected. Applications include Water Treatment, Corrosive Industrial Waste Treatment, Filling, Batching, Bulk Transfer, and Dirty Liquids.

Non-contact Radar Level Transmitter – Features

2-wire compact sensor
Compatible with 9900 Sensor (optional signal converter)
Non-contact level measuring
Narrow 7° beam angle
Level, volume and open channel flow
Compact housing
Fully temperature-compensated electronics
Outstanding signal processing software providing highly accurate measuring results
Chemical resistance – PP or PVDF sensor body
Secondary lightning protection
4 to 20 mA / HART interface

Description

Non-contact Radar Level Transmitter | GF 2298

Specifications

Antenna type

Encapsulated Antenna

Antenna size

⌀1″ *

⌀1½”

Dead zone (1)

0 m (0 ft)

Max. measuring distance (2)

10 m

20 m

Antenna insertion length (3)

56 mm

70 mm

Accuracy (4)

±5 mm

±2 mm

Process pressure

–1…3 bar (–14.5…43.5 psi)

Beam angle (–3 dB)

12°

7°

Process connection

1″ BSP / NPT

1½” BSP / NPT

Materials Housing

PP, PVDF, PTFE*

Materials Seal

EPDM

Materials Cable

Cable sealing: EPDM, cable isolation: PVC

Measured Values

Level, Distance; Calculated values: Volume, Mass

Frequency of the Measuring Signal

~80 GHz (W-band)

Linearity Error (as per EN 61298-2)

See diagram

Minimum dielectric constant εr of the Medium

1.9 ( refer to diagram)

Resolution

0.1 mm (0.0039“)

Power Supply Voltage

12…36 V DC

Output Digital Communication

4…20 mA; (3.9…20.5 mA); RLmax = (US – 12 V) / 0.02 A + HART

Measuring Frequency

~1/s

Antenna Diameter

1“ (25.4 mm); 1½“ (38.1 mm)

Antenna Material

Horn: Stainless Steel; enclosure: PP / PVDF / PTFE

Medium Process Temperature

PVDF: –40…+80 °C

PP: –30…+80 °C

Ambient Temperature

PVDF: –40…+80 °C

PP: –30…+80 °C

Upper process connection

1“ BSP

Protection class

IP66 / IP68

Electrical Connection (5)

4 × 0.5 mm2 shielded Ø6 mm cable × 5 m (up to 30 m); (4 × 22 AWG shielded Ø0.24“ cable × 16.4 ft [up to 98.5 ft]); For the relay option: 7 × 0.5 mm2 (22 AWG) shielded cable

Electrical Protection

Class I overvoltage protection; (Class III [SELV])

Communication Certifications

R&TTE, FCC

Weight

~600 g (1.3 lb)

Standards and Approvals

Directive 2014/35/EU (LVD), Directive 2014/30/EU (EMC), Directive 2014/53/EU (RED), Directive 2015/863/EU (RoHS 3)

*Available on request.

(1) From the tip of the antenna, if dielectric constant (εr) < 80.

(2) May be limited for media with low dielectric constants or non-vertical or non-planar surfaces.

(3) From process connection.

(4) With an ideal reflecting surface, according to IEC 62828-1, an accuracy of ±2 mm (±0.079») is not guaranteed for Region 3 and Region 4 settings.

(5) Operate only with galvanically isolated power supply!

Non-contact Radar Level Transmitter | GF 2298

Non-contact Radar Level Transmitter | GF 2298

Non-contact Radar Level Transmitter | GF 2298