그린텍코리아주식회사
비접촉식 펄스 레이더
Non-Contact Pulse Radar
홈
Non-Contact Pulse Radar
Non-Contact Pulse Radar
RD685X series
RD6851 / 6852 / 6853 / 6854 / 6855 / 6856
| 측정범위 | Max. 30m (0~20m, 30m 확장 가능) |
|---|---|
| 측정 정확도 | ±8mm ~ ±15mm (모델별) / 분해능 1mm |
| 빔 폭 측정 | 8° ~ 24° (플랜지 규격별) |
| 옵션 | - |
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RD685X series 제품에 대해 궁금하신 점을 남겨주시면 담당자가 확인 후 이메일로 답변드립니다.
General Frequency (6.8GHz) · Max. 30m · 2-wire loop powered
비접촉식 레이더 레벨 트랜스미터
RD6851 / 6852 / 6853 / 6854 / 6855 / 6856
Product description
RD685X series transmitters are the advanced radar level measuring instruments. The Max. measuring range is up to 30m. They can be used for level measurement for storage tanks, center buffer tanks or process containers. The output analog signal is 4~20mA.
Working principle
- The electronic units generate microwave pulses which are emitted and received by the antenna systems.
- The radar wave travels at the velocity of light, the flying time will be converted into level signals via the electronic components.
- A special time extending method can make sure the stable and accurate measurement within extreme short time.
- Even under some complicated working conditions with false echoes, the level signals can also be recognized and collected with the latest microprocessor technology and the debugging software.
Input / Output
- Input — The antenna receives the reflected micro pulses and then transmits them to the electronic circuit. The microprocessor will process the signals and recognize the reflected echo from the medium surface among them. The correct reflected echoes can only be recognized by the intelligent software, the precision can reach “mm” level.
- The distance D from the medium surface is proportional to the flying time T : D = C × T / 2 (C is velocity of light)
- Due to the distance E (from the instrument flange to the bottom of the tank, i.e. the height of the empty tank) is known, then the level L is : L = E − D
- Output — By setting the empty tank height E as zero point, the full tank height F as full range point and other practical parameters, which will make the transmitter adapt to the measuring environment automatically, corresponding to output 4-20mA.
적용
- RD6851 — 단순 공정, 부식성 액체·슬러리 (폐수·산·알칼리 저장탱크)
- RD6852 — 부식성 액체·슬러리, 고체 입자 포함
- RD6853 — 원유·경유·휘발성 액체 등 각종 액체·슬러리 탱크
- RD6854 — 분체·고체 입자·벌크 (원탄·석탄분·코크스)
- RD6855 — 교반기가 있는 액체 탱크, 유전율 액체
- RD6856 — 고로(blast furnace), 두꺼운 상부 탱크, 긴 마운팅 파이프 탱크
Introduction of Transmitter
RD6851단순 공정 · 부식성 액체 · 슬러리
측정범위 (Max.) : 20m
Process connection : Thread G1 1/2” or 1 1/2” NPT
Process temperature : -40°C … +120°C
Process pressure : -0.1~0.3MPa
Accuracy : ±8mm / Repeatability : ±2mm
Dead band : 600~800mm / Frequency : 6.8GHz
Ex ia IIC T6 · Ex d ia IIC T6 / IP67
Signal output : 4-20mA / HART (2-wire), RS485
RD6852부식성 액체 · 슬러리 · 고체 입자
측정범위 (Max.) : 20m
Process connection : Flange
Process temperature : -40°C … +150°C
Process pressure : -0.1~1.6MPa
Accuracy : ±8mm / Repeatability : ±2mm
Dead band : 600~800mm / Frequency : 6.8GHz
Ex ia IIC T6 · Ex d ia IIC T6 / IP67
Signal output : 4-20mA / HART (2-wire), RS485
RD6853원유 · 경유 · 휘발성 액체 탱크
측정범위 (Max.) : 30m
Process connection : Flange
Process temperature : -40°C … +250°C
Process pressure : -0.1~4.0MPa
Accuracy : ±8mm / Repeatability : ±2mm
Dead band : 500mm / Frequency : 6.8GHz
Ex ia IIC T6 · Ex d ia IIC T6 / IP67
Signal output : 4-20mA / HART (2-wire), RS485
RD6854분체 · 고체 입자 · 벌크
측정범위 (Max.) : 30m
Process connection : Universal Flange
Process temperature : -40°C … +250°C
Process pressure : -0.1~0.3MPa
Accuracy : ±15mm / Repeatability : ±2mm
Dead band : 500mm / Frequency : 6.8GHz
Ex ia IIC T6 · Ex d ia IIC T6 / IP67
Signal output : 4-20mA / HART (2-wire), RS485
RD6855교반기 탱크 · 유전율 액체
측정범위 (Max.) : 0~20m optional
Process connection : Flange
Process temperature : -40°C … +250°C
Process pressure : -0.1~2.0MPa
Accuracy : ±8mm / Repeatability : ±2mm
Dead band : 800mm / Frequency : 6.8GHz
Ex ia IIC T6 · Ex d ia IIC T6 / IP67
Signal output : 4-20mA / HART (2-wire), RS485
RD6856고로 · 긴 마운팅 파이프 탱크
측정범위 (Max.) : 30m
Process connection : Flange
Process temperature : -40°C … +500°C
Process pressure : Atmospheric pressure
Accuracy : ±15mm / Repeatability : ±2mm
Dead band : 0~600mm / Frequency : 6.8GHz
Ex ia IIC T6 · Ex d ia IIC T6 / IP67
Signal output : 4-20mA / HART (2-wire), RS485
Features
- Advanced noncontact measurement
- Made of extremely stable materials
- Measuring level for liquids and solids
- Measuring for different mediums which dielectric constant > 1.8
- Measuring range is 0~20m (can be extended to 30m)
- 2-wire and loop powered. Voltage supply and signals output can be performed by a cable with two cores.
- 4-20mA, or digital signals
- Resolution 1mm
- Not be affected by noise, steam, dust or vacuum
- Not be affected by changes of medium density, viscosity or temperature
- Process pressure is up to 4MPa
- Process temperature is up to 250°C
Technical parameters
| Working frequency | 6.8GHz |
|---|---|
| Wave beam angle |
24°RD6851, RD6852
20°RD6853 with DN150 flange
16°RD6853 with DN200 flange
14°RD6853 with DN250 flange
8°RD6853 with DN100 flange (Horn length 288mm)
|
| Measuring distance (Max.) | 0~30m (mainly depends on dielectric constant) |
| Accuracy | ±10mm |
| Repeatability | ±2mm |
| Resolution | 1mm |
| Sample | Echo sampling 55 times / s |
| Responding speed | > 0.2s (depends on the application) |
| Current signal | 4~20mA |
| Antenna material | RD6851 : PP or PTFE / RD6852 : PTFE / RD6853 : S.S |
| Communication | HART protocol |
| Process connection |
RD6851PP · PTFE stick-type antenna — G1 1/2” A or 1 1/2” NPT
RD6852PTFE stick-type antenna — Flange with turn ups DN50, DN80, DN100, DN150, DN200, DN250
RD6853Horn antenna — Flange DN50, DN80, DN100, DN150, DN200, DN250
|
| Power supply | 24V DC (±10%), ripple voltage : 1Vpp / 소비전력 Max 22.5mA |
| Environment | Temperature : -40°C ~ +70°C / Tank pressure (Gage) : -0.1~4MPa |
| Explosion proof | Ex ia IIC T6, Ex d ia IIC T6 |
| Housing protection | IP67 |
| 2-wire connection | Input and signal output share one 2-wire cable |
| Cable entry | M20*1.5 × 2 or 1/2” NPT × 2 (cable diameter 5~9mm) |
Remarks : The above accuracy and dead band will be changed by measuring range and process condition.
Model selection — 공통 항목
아래 항목은 RD6851 ~ RD6856 전 모델에 공통 적용됩니다.
| 구분 | Code | 내용 |
|---|---|---|
| Explosion proof | P | Standard type (Non-explosion) |
| I | Intrinsically type (Ex ia IIC T6) | |
| D | Intrinsically and explosion proof type (Ex d ia IIC T6) | |
| Electronic unit | 2 | 4~20mA / 24V DC 2-wire |
| 3 | 4~20mA / 24V DC / HART 2-wire | |
| 4 | 4~20mA / 24V DC / HART 4-wire | |
| 5 | 4~20mA / 220V AC / HART 4-wire | |
| Housing / protection grade | L | Aluminum / IP67 |
| P | Plastic / IP65 | |
| Cable entry | M | M20x1.5 |
| N | 1/2” NPT | |
| Display | V | With |
| X | Without | |
| Seal / process temp. (RD6852~6856) |
P | Common seal / -40~+120°C |
| G | High temperature sealed / -40~+250°C with radiation fins (RD6852 : -40~+150°C with heat sink) |
|
| Option (RD6853 · 6854 · 6856) |
N | No |
| P | Protection Cap | |
| Measuring range | ( ) | ( ) m |
| 플랜지 규격 | ( ) | (A) ANSI150LB, FF / (J) JIS10K, FF / (D) DIN PN16, FF |
Model selection — 모델별 항목
RD6851
| 구분 | Code | 내용 |
|---|---|---|
| Antenna type / material / process temp. | SP | Plastic stick / PP / -40~+100°C |
| SF | Plastic stick / PTFE / -40~+120°C | |
| Process connection / material | G1.5 | Thread G1 1/2” M, PP |
| N1.5 | Thread 1 1/2” NPT M, PP | |
| A ( ) | DN50 flange : PVC | |
| B ( ) | DN80 flange : PVC | |
| C ( ) | DN100 flange : PVC | |
| D ( ) | DN150 flange : PVC | |
| E ( ) | DN200 flange : PVC | |
| F ( ) | DN250 flange : PVC | |
| Y | Other flange and thread — 별도 표기 | |
| Extension pipe length | A | 50mm |
| B | 100mm | |
| C | 150mm | |
| D | 200mm | |
| E | 250mm | |
| Y | Others |
RD6852
| 구분 | Code | 내용 |
|---|---|---|
| Antenna type / material | SF | Plastic stick / PTFE / -40~+120°C |
| Process connection | FA ( ) | DN50 flange : SUS304, PTFE turn up |
| FB ( ) | DN80 flange : SUS304, PTFE turn up | |
| FC ( ) | DN100 flange : SUS304, PTFE turn up | |
| FE ( ) | DN150 flange : SUS304, PTFE turn up | |
| FF ( ) | DN200 flange : SUS304, PTFE turn up | |
| FH ( ) | DN250 flange : SUS304, PTFE turn up | |
| Y | Other flange — 별도 표기 | |
| Extension pipe length | A~E, Y | 50 / 100 / 150 / 200 / 250mm, Others |
RD6853
RD6853H : 강산 · 강알칼리 · 강부식성 액체, 증기가 많은 환경 (-40°C ~ +150°C)
| 구분 | Code | 내용 |
|---|---|---|
| Process connection | G1.5 | Thread G1 1/2” M, SUS304 |
| A ( ) | DN50 flange : SUS304 | |
| B ( ) | DN80 flange : SUS304 | |
| C ( ) | DN100 flange : SUS304 | |
| E ( ) | DN150 flange : SUS304 | |
| F ( ) | DN200 flange : SUS304 | |
| H ( ) | DN250 flange : SUS304 | |
| Antenna type / material | B | Horn antenna Φ76mm / SUS304 |
| C | Horn antenna Φ96mm / SUS304 | |
| E | Horn antenna Φ146mm / SUS304 | |
| F | Horn antenna Φ196mm / SUS304 | |
| G | Horn antenna Φ242mm / SUS304 | |
| Antenna extension pipe | 1~4 | None / 200mm / 300mm / 400mm |
RD6854
| 구분 | Code | 내용 |
|---|---|---|
| Process connection | Z ( ) | DN150 flange : SUS304, With universal joint |
| W ( ) | DN200 flange : SUS304, With universal joint | |
| V ( ) | DN250 flange : SUS304, With universal joint | |
| Y | Other flange — 별도 표기 | |
| Antenna type / material | E | Horn antenna Φ146mm / SUS304 |
| F | Horn antenna Φ196mm / SUS304 | |
| G | Horn antenna Φ242mm / SUS304 | |
| Antenna extension pipe | 1~4 | None / 200mm / 300mm / 400mm |
RD6855
| 구분 | Code | 내용 |
|---|---|---|
| Process connection | A ( ) | DN50 flange : SUS304 |
| B ( ) | DN80 flange : SUS304 | |
| C ( ) | DN100 flange : SUS304 | |
| Antenna type / material | A | DN50 wave guide pipe / SUS304 |
| B | DN80 wave guide pipe / SUS304 | |
| C | DN100 wave guide pipe / SUS304 |
RD6856
| 구분 | Code | 내용 |
|---|---|---|
| Process connection | E ( ) | DN150 flange : SUS304 |
| F ( ) | DN200 flange : SUS304 | |
| H ( ) | DN250 flange : SUS304 | |
| Y | Other flange — 별도 표기 | |
| Antenna type / material | E | Horn antenna Φ146mm / SUS304 |
| F | Horn antenna Φ196mm / SUS304 | |
| G | Horn antenna Φ242mm / SUS304 | |
| Antenna extension pipe | 1~5 | 1000 / 1500 / 2000 / 2500 / 3000mm |
Notes : The signal converter colors may be changed by customer’s request.
This technical specification may be upgraded without prior notice.
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