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Products: HNRL-50 Series Intelligent radar level gauge, microwave pulses from the antenna, the measured material surface reflection, and was received by the radar system. Absorbing foreign advanced technology and years of accumulated experience, the use of microwave technology and a new generation of intelligent software can correctly identify and capture a valid echo signals, thus stable and accurate measurement data needs, and its accuracy up to millimeter. Level to meet a variety of complex working conditions, level measurement. The products are widely used in liquid water storage tanks, acid storage tanks, slurry storage tanks, solid particles and small tanks. Various types of conductive, non-conductive medium, corrosive media. Such as coal bunker, ash silo, tanks, acid tanks and other

HNRL-50 Intelligent radar level gauge

Measuring principle:
Radar level meter antenna issue microwave pulse reflection in the surface of the material under test, and was received by the radar system.

enter:
Antenna receives the reflected microwave pulses and transmits it to the electronic circuit, the microprocessor processes this signal, identify the microwave pulse echo generated at the surface of the material. Correct echo signal recognition by the intelligent software to complete, up to millimeter precision.

The distance D from the material surface and the pulse travel time T is proportional to:
D = C x T / 2
Where C is the speed of light
Because the empty distance E is known, the level L is:
L = E - D

Output:
By entering the empty height E (= zero), full tank height F (= span) and some applications to set the parameters, application parameters will automatically adapt to the instrument measurement environment. 4mA to 20mA output corresponds to.

Precautions:
● measuring range from the beam to reach the bottom of the tank start to that point, but in exceptional circumstances, if the tank bottom is concave or tapered, when the level falls below this point can not be measured.
● If the medium is a low dielectric constant when it is low level, the tank bottom can be seen at this time in order to ensure accuracy, we recommend to set the zero at the end of height C position.
● theory in measurement position of the tip of the antenna is possible, however, take into account the impact of corrosion and adhesion, the final value of the measuring range from the tip of the antenna should be at least 50mm.
● For overflow protection, define a safe distance attached to the blind.
● Minimum measuring range and antenna related.
● With different concentrations, the foam can either absorb microwaves, and can be reflected, but under certain conditions can be measured.
● measuring range exceeded Action: When the measurement range is exceeded, the instrument output current of 22mA.

Technical Parameters

Common parameters

Operating Frequency: 6.2G, 26G

Beam angle:
    24 ° HNRL-50-01, HNRL-50-02
    20 ° HNRL-50-03 with flange HNRL-50-150
    16 ° HNRL-50-03 with flange HNRL-50-200
    14 ° HNRL-50-03 with flange HNRL-50-250

Measuring range: 0 ... 20m (standard)

Repeatability: ± 3mm

Resolution: 1mm

Sampling: echo sampling 44 times / s

Response speed:> 0.3S (depending on usage)

Current signal: 4 ... 20mA

Accuracy: <0.1% or 10mm

Communication Interface: HART communication protocol

Process connection:

    G11 / 2, (installed on a plastic rod antenna): HNRL-50-01

    Flange DN50, DN80, DN100, DN150 (rod antenna): HNRL-50-02

    Flange DN50, DN80, DN100, DN150, DN200, DN250 (trumpet antenna): HNRL-50-03

power supply

    Power: 24VDC (± 10%), ripple voltage: 1Vpp

    Power consumption: max 22.5mA

Environmental conditions:

Temperature: -40 ℃ ... + 70 ℃

:( Tank pressure gauge) -1 ... 2bar

Ex certification: Exia II BT5

Enclosure protection: IP66

Two-wire connection:

Power supply and signal output sharing a two-core wire

Cable entry: two M20 x 1.5 (cable diameter 5 ... 9mm)

Radar type:
    The antenna can be divided into: Rod radar level gauge, radar level gauge cable, rod and bell-type radar level gauge radar level gauge

    According to the wave form can be divided into: guided wave radar level gauge and pulsed radar level gauge

    According to the wave frequency can be divided into: low and high frequency radar level gauge

If unknown: please contact customer service