■ Mobile App UI Screen
■ System Configuration
■ Product Introduction
GFMR-78T 물용 시리즈는 수자원 관리 및 순수 물 측정 공정에 최적화된 78GHz 고주파 FMCW(주파수 변조 연속파) 레이더 레벨 미터입니다.빔 각도가 좁아 정밀한 조준이 가능하며, 상하수도, 저수지, 강하천 등 물 관련 모든 현장에서 기후 변화에 영향을 받지 않고 가장 안정적이고 정확한 수위 데이터를 제공하는 표준형 레이더 레벨 미터입니다. 견고한 하우징과 범용적인 나사산(G1.5″, G2″) 구조를 채택하여 일반 대기 노출 환경에서도 안정적인 수위 측정을 지원합니다.
■ Applications
Industrial Water Tanks: Water tanks with lingering mild chemical gases, outdoor open channels, and outdoor water tanks.
Water, Sewage & Wastewater Treatment Facilities:Level measurement for water purification plants, sewage treatment tanks, pumping stations, and underground manholes.
Industrial Water Tanks: Pure water storage tanks, industrial water tanks, and firefighting water tanks within factories.
Environmental Monitoring: Real-time water level monitoring systems for torrential rain and flood prevention.
■ Key Features
- Water Measurement Optimization & High-Precision Metering: Delivers highly precise and consistent measurement performance through an integrated algorithm that compensates for minute surface ripples or distortions.
- Powerful Linearity of 78GHz FMCW: Featuring an exceptionally narrow beam angle of approximately 6.8°, it accurately targets only the water surface without wall interference (false echoes), even inside manholes with numerous structures or narrow channels.
- Available in distinct measurement ranges of 10m, 20m, and 30m depending on the model.
- Optimized measurement coverage in low-clearance spaces with a minimal dead band of less than 150 to 180mm.
- Supports simultaneous output of 4-20mA analog signal and RS485 Modbus communication.
- Configurable via Bluetooth using a dedicated mobile app, allowing operators to verify measurement values in real-time.
- Corrosion-Resistant SUS Body: Demonstrates outstanding durability in outdoor exposed environments thanks to a stainless steel housing that eliminates any risks of rust or corrosion.
- Environmental Resilience: Utilizes a non-contact measurement method to prevent sensor contamination, ensuring stable operation without signal attenuation under severe outdoor conditions such as heavy fog, steam, rain, wind, and temperature fluctuations.
- Offers a cost-effective and seamless replacement for conventional ultrasonic level meters and 26GHz radar level meters, effectively overcoming their technological limitations.
■ Precautions
- Outdoor Protection Measures: When installing in open outdoor locations exposed to year-round direct sunlight or lightning risks, it is highly recommended to equip a sunshade (UV protection cover) and a surge protector.
- Measurement Restrictions: Measurement may be restricted in highly corrosive chemical environments (such as strong acids and alkalis) or high-temperature, high-dust processes; please apply to standard water supply and wastewater treatment applications.
Maintaining Minimum Distance (Dead Band): Properly adjust the installation height so that the maximum water level does not breach the dead band zone directly in front of the sensor (approximately 0.08m to 0.1m depending on the model).
Surface Alignment Angle: The antenna radiation surface must be precisely aligned perpendicular ((90°) to the water surface to collect optimal reflected wave signals. If the antenna becomes contaminated, gently wipe it with a soft cloth.
- Rainwater Ingress Prevention: Tighten the waterproof cable gland securely and bend the cable downward into a "U" shape (drip loop) to prevent rainwater from running along the cable and entering the housing interior.
Radio Regulatory Compliance: Prior agreement with the relevant radio observatory is required if the installation is intended within a 2 km radius of a radio astronomy antenna.
■ General Specifications
| ● Model | GFMR-78T | |
|---|---|---|
| ● Frequency | 77~81GHz | |
| ● Max. Measurement Distance | Max. 30m | |
| ● Application | Liquid | |
| ● Accuracy | ±2~3mm | |
| ● Repeatability | ≤1–2mm | |
| ● Beam Angle | 6.8° | |
| ● Dead Band | 180~200mm | |
| ● Power Supply | DC 24V/ 2 wire system for 4-20mA DC | |
| DC 24V/ 4 wire system for 4-20mA DC | ||
| ● Signal Output | 4-20mA DC/ Loop wire + RS485 Modbus | |
| ● Calibration | Debugging via Bluetooth and RS485 Modbus | |
| ● Display | -D: LCD Display | |
| -N: No | ||
| ● Language | LCD Display: English | |
| Bluetooth: Korean | ||
| ● Process Temperature | -40~60℃ | |
| ● Process Pressure | Max. 2 Kpa | |
| ● Ambient Temperature | Output: -40°C to 55°C | |
| ● IP Rating | IP67 | |
| ● Antenna Type & Material | Lens Type / Standard PP Antenna (Option: PTFE) | |
| ● Housing Material | -D: ABS (Color: Orange, Blue, Black) | |
| -N: SUS304, Aluminum Anodizing (Black), ABS (Orange, Black) | ||
| ● Process Connection | -D: Thread G1.5” | |
| -N: Thread G1.5", G2", Thread M76x2 (For Dual Hard Structures) | ||
| ● Cable Entry | -D: M12*1.5 | |
| -N: M16x1.5+Cable: 0.45mm² x 1m, PT 1” adapter | ||
| ● Adjustment | 4 Buttons, Bluetooth, RS485 Modbus | |
| ● Options | -D: Split Flange | |
| -N: Split Flange or Bracket | ||
| Flange Hard Structure (Material: Black Nylon) | ||
| Remarks: -D: Display Type / -N: Non-display Type | ||
■ Product Selection Code
| Model Code | Description | ||
|---|---|---|---|
| Model: GFMR-78T_FMCW Radar Level/ Distance Meter | |||
| Indicator | D |
ABS Housing, LCD display +4 buttons Blue-tooth and RS485 debugging Cable gland: M12x1.5 & Blind Process Connection: Thread G1.5” |
|
| N |
SUS, Al Anodizing Housing, No display with signal cable-1m Blue-tooth and RS485 debugging Process Connection: Thread G1.5”, G2” (Option: PT 1”) |
||
| Measurement Range | 10 | Max. 10m | |
| 20 | Max. 20m | ||
| 30 | Max. 30m | ||
| Option | Y | Yes | |
| N | No | ||
| Option: Please fill in required items only. | |||
| Process Connection / Material |
B | Bracket/ SUS304 (SUS, Al housing only) | |
| P-1 | PP Thread G1.5” (For Al, SUS housing) | ||
| P-2 | PP Thread G2” (For Al, SUS housing) | ||
| S-2 | SUS Thread G2” (SUS housing only) | ||
| F( )( ) |
Flange: (5) DN50, (8) DN80, (10) DN100 (O) Other |
(J) JIS 10K (D) DIN PN16 (A) ANSI 150# |
|
| ( ) | Flange 재질: (A) Al, (S) SUS304, (P) PVC, (T) PTFE | ||
| 4 | Option Output: 4 wire system for 4-20mA. | ||
| T | Special antenna: 재질: PTFE | ||
| -D |
Double construction: ABS body, Thread M76x2 only (JIS, DIN, ANSI: More than 50A Flange) (Material: Black Nylon) |
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| For remote indicators, please refer to the attached catalog if necessary and place a separate order. | |||
| Required Specifications for Product Ordering |
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| (This data is subject to change without prior notice due to technical specification upgrades by the company.) | |||