Radar water level gauge rangefinder

radar water level gauge

model：JT-LD-24G

1. Product principle

Radar water level gauge rangefinderThe antenna emits extremely narrow microwave pulses, which propagate at the speed of light in space. When they encounter the surface of the measured medium, some of their energy is reflected back and received by the same antenna. The time interval between transmitting and receiving pulses is proportional to the distance from the antenna to the surface of the measured medium. Due to the propagation speed of electromagnetic waves *, it is difficult to confirm the time interval between the transmitted pulse and the received pulse, which is very small (nanosecond level),90Xseries26Gradar water level gaugeBy using a special demodulation technique, the time interval between the transmitted pulse and the received pulse can be accurately identified, thereby further calculating the distance between the antenna and the surface of the measured medium.

A. Range setting

B. Low level adjustment

C. High level adjustment

D. Blind area range

2. Application characteristics of water conservancy industry

Industry RecommendedRadar water level gauge, rangefinder, and meteradopted26GHzThe emission frequency has:

lSmall beam angle, concentrated energy, and stronger resistance to impactStrength greatly improves measurement accuracy and reliability

lThe antenna size is small, making it easy to install and install antenna protection devices such as dust covers

lLightweight approximately1KGEasy to install

lThe measurement range can reach up to70Meter, covering large reservoirs and other water level measurements

lMultiple output circuit interfaces and integration with acquisition systems

lUsing pulse working mode,radar water level gaugeExtremely low transmission power, no harm to human body and environment

The reference surface for measurement is the bottom surface of the thread or the sealing surface of the flange

Note: Use radarwaterTiming must ensure the highestliquidCannot enter the measurement blind zone (as shown in the figure)DThe area shown.

3Instrument Introduction

should Use: Rivers, lakes, and shallow waters

Measurement range: 30rice

Process connection: threadG1½ʺ A /support/flange

Process temperature: -40～100℃

Process pressure: atmospheric pressure

essence Degree: ±3mm

Frequency range: 26GHz

Protection level: IP67 / IP65

Power supply:DC（6—24V）/four lines

DC 24V /two lines

Signal output:RS485/ModbusAgreement（6~24V DC）

0mA/HartTwo lines（24V DC）

On site display: optional

outside Shell: aluminium/plastic

should Use:Rivers, lakes, and shallow waters

Measurement range:70rice

Process connection:threadG1½ʺ A /support/flange

Process temperature:-40～100℃

Process pressure: atmospheric pressure

essence Degree: ±10mm

Frequency range:26GHz

Protection level:IP67 / IP65

Power supply:DC（6—24V）/four lines

DC 24V /two lines

Signal output:RS485/ModbusAgreement（6~24V DC）

4~20mA/HartTwo lines（24V DC）

On site display: optional

outside Shell: Aluminum/plastic

4. Instrumentinstall

ØPreparation before installation Please pay attention to the following items to ensure that the instrument can be installed correctly:

Please reserve sufficient installation space.

Please avoid installation environments with strong vibrations.

ØIllustration and installation location

Radar and bracket installation diagram (1)

Radar and bracket installation diagram (II)

Note: When radar antennas emit microwave pulses, there is a certain emission angle. There shall be no obstacles between the lower edge of the antenna and the surface of the measured medium, as well as within the area radiated by the emitted microwave beam. Therefore, during installation, it is necessary to avoid obstructing facilities as much as possible, and if necessary, "false echo learning" should be carried out. When installing instruments, attention should also be paid to: the highest liquid level should not enter the measurement blind zone; the instrument must be grounded, and lightning protection measures should be added; outdoor shading and rainproof measures should be taken.

5electrical connection

power supply voltage

RS485/Modbus Power supply andModbusThe signal lines are separated and each uses a shielded cable. The specific power supply voltage range can be found in the technical data.

(4～20) mA/HART(Two wire system) The power supply and output current signal share a two core shielded cable. Please refer to the technical data for the specific range of power supply voltage. For intrinsic safety type, a safety barrier must be added between the power supply and the instrument.

connection method

RS485/ModbusThe wiring diagram is as follows:

24VThe two-wire wiring diagram is as follows:

safety guidance

Please comply with the requirements of the local electrical installation regulations!

Please comply with local regulations on personnel health and safety. All operations on the electrical components of instruments must be completed by professionals who have received formal training.

Please check the nameplate of the instrument to ensure that the product specifications meet your requirements.Please ensure that the power supply voltage meets the requirements on the instrument nameplateoneTo.

Protection level

This instrument * protection levelIP66/67Please ensure the waterproof performance of the cable sealing head. As shown in the figure below：

How to ensure installation meetsIP67Requirement:

Please ensure that the sealing head is not damaged.

Please ensure that the cable is not damaged.

Please ensure that the cables used comply with the requirements of electrical connection specifications.

Before entering the electrical interface, bend the cable downwards to ensure that water does not flow into the housing, see①

Please tighten the cable sealing head, see②

Please seal the unused electrical interfaces with blind plugs, see③

6Instrument debugging

radar water level gaugeThere are twoDebugging methods：

⑴ Display/button

⑵ Upper computer debugging

display/Button

By displaying on the screen4Use one button to debug the instrument. The language of the debugging menu is optional. After debugging, it is usually only used for display, and the measured values can be read very clearly through the glass window.

①LCD (Liquid Crystal Display)

② Button

7structural dimensions Unit mm

lwatch caseSize:

.Overall Dimensions

DC-6610

DC-6611

lConnection method:

²Standard bracket connection

²Connection with rain cover bracket

²thread G1½″Aconnect

²G1Installation base connection

8Technical Specifications

9Instrument linearity

DC-6610

Launch angle Depends on antenna size

-￠76mm 12°

-￠96mm 8°

precision See the figure below

DC-6611

Launch angle Depends on antenna size

-￠76mm 12°

-￠96mm 8°

-￠121mm 6°

precision See the figure below

10. Productselection

Model:DC-6610

license

PStandard type (non explosion proof)

Process Connection/Materials

GthreadG1½″ A /stainless steel304

NStandard bracket

MBracket with rain cover

H G1Install the base

YSpecial Customization

Antenna type/material

A horn antenna Φ76mm/stainless steel304

B horn antenna Φ96mm/stainless steel304

YSpecial Customization

seal/process temperature

V Ordinary seal/（-40~100）℃

electronic unit

VRS485/Modbus /four-wire system

W（4~20）mA / 24V DC two-wire system

shell/Protection level

L aluminium/IP67

G plastic /IP65

Cable incoming line

M M20 x l. 5

N ½″ NPT

on-site display/programming

A belt

X without

Model:DC-6611

license

PStandard type (non explosion proof)

Process Connection/Materials

GthreadG1½″ A /stainless steel304

NStandard bracket

MBracket with rain cover

H G1Install the base

YSpecial Customization

Antenna type/material

A horn antenna Φ96mm/stainless steel304

B horn antenna Φ121mm/stainless steel304

YSpecial Customization

seal/process temperature

V Ordinary seal/（-40~100）℃

electronic unit

VRS485/Modbus /four-wire system

W（4~20）mA / 24V DC two-wire system

shell/Protection level

L aluminium/IP67

G plastic /IP65

Cable incoming line

M M20 x l. 5

N ½″ NPT

on-site display/programming

A belt

X without