Sigma 6000-P series

Portable Flow Meter for Partially Filled Pipes & Open Channels

Features
20 coordinate points to describe the river’s shape of cross section.
One instrument can measure the velocity, depth and conductivity at same time.
Velocity Range : 0.02mm/s to 10m/s bi-directional, accuracy is 1%.
Depth Range: 0 to 10m
Measure velocity in both forward flow and back flow.
Depth is measured by both the pressure sensor and ultrasonic level sensor principles.
With coordinate correction and pressure compensation function.
IP68 Epoxy-sealed body design, long time under water.
RS485/MODBUS output, can contact computer directly.

Specifications:
Power supply: Control unit：220VAC (battery)；Sensor:12VDC
IP rating: Control unit: IP66，Sensor: IP68
Operating temperature: 0℃ ~+60℃ water temperature
Control unit Display: 4.5” color LCD
Control unit output: 4-20mA， RS485( Modbus-RTU)，Data logger，GPRS
Sensor size: 135mm x 50mm x 20mm (L x W x H)
Applications: Partially Filled Pipes:200-10000mm; Open Channel: 200-10000mm
Flow calculation: Velocity；Totalizer Pipe, Channel type Partially filled pipe, Open Channel and River, Stream
Sensor material: Epoxy-sealed body, Marine Grade 316 Stainless Steel Mounting Bracket
Sensor weight: 1kg with 15m of cable, it can extend o 100m
Velocity range: 20mm/s-0.8m/s; 20mm/s-1.6m/s; 20mm/s-3.2m/s (default); 20mm/s- 6.4m/s; 20mm/s-13.2m/s
Bi-directional velocity measurement capability
Velocity accuracy: ±1% typical
Velocity resolution: 1mm/s
Depth range: Ultrasonic Sensor: 20mm up to 5m above top surface
40mm up to 5m from base
Temperature resolution: 0.1°C
Cable: The standard cable length is 15m, the maximum option is 50m.
Power usage: 10V to 24VDC, 50µA standby, 100mA/s
SDI-12: SDI-12V 1.3recorder (1200 baud smart instrument channel)

Applications
Sewer Flow
Studies
Storm water Monitoring
Natural Streams
Irrigation Water
Recycled Water

Portable/Handheld surface water Flow Meter

Surface Water Flow / Velocity Measurement
for Open channels, Rivers, Streams, Hydrology

Sigma R-60 portable radar flow meter

Sigma R-60 is a handheld non-contact flow measurement, battery-powered easy to use Waterproof IP67 radar flow meter

Non-contact operation, not affected by sediment and water
Can store 2000 records for easy management
Built-in rechargeable battery, can be used continuously for 15 hours
Built-in angle sensor, can automatically correct vertical and horizontal angles, built-in temperature sensor,convenient temperature detection
Device has waterproof protection, which is convenient for field use
The housing is made of ABS resin material, which has good impact resistance, heat resistance, low temperature resistance, corrosion resistance, and good electrical and gas insulation that protects the personal safety of measurement personnel during measurement in thunder storm weather conditions
Weight less than 700g

Velocity measuring Range: 0.03-20m/s
Accuracy: ±0.03m/s
Operating Temperature: -20~+70℃
Radio Wave Emission Angle: 12°
Radio Wave Transmitting Power: 18dBm
Radio Frequency: 24GHZ
Protection rating : IP67
Level range:100m max

Applications
Sigma R-60 portable & handheld radar flow meter offers flexibility and convenience for temporary or spot flow measurements in various applications where mobility and ease of use are critical, such as

● Environmental Monitoring and Compliance
● Educational and Training Purposes
● Field Research and Data Collection
● Emergency Response and Rapid Deployment
● Ecological discharge flow
● River water
● Stream water
● Flood control early warning

RADAR FLOW CONTINUOUS METERING FOR STREAMS & RIVERS

Sigma R-600 Radar Flow & Level Meter

Sigma R-600 employs microwave technology for non-contact measurements.
Its advanced K-band planar radar technology ensures accurate flow velocity and water level measurements without physical contact

Applications :
● River water monitoring
● Stream water monitoring
● Flood control early warning
● Reservoir flood control system
● Ecological discharge flow
● Monitoring of flow rate of agricultural water channels
● Sewage discharge control
● Process water canals
● Outlets / inlets
● Environmental Monitoring and Compliance
● Field Research and Data Collection
● Emergency Response and Rapid Deployment

Features
● 24GHz frequency modulated continuous wave (FMCW), and output measurement data of flow velocity, water level, and flow rate at the same time.
● Continuous non-contact surface velocity measurements during low, normal or high flows
● Unaffected by floating debris or suspended sediment
● IP68 waterproof (lightning protection design), not affected by bad weather and virus factors.
● With Bluetooth parameter adjustment function, it supports mobile phone APP to wirelessly configure and maintain the device on-site.
● Optional RTU function to support remote upgrade and remote maintenance of equipment.
● Built-in Vertical Angle Correction: Suitable for irregular open channels or ditches (e.g., trapezoid, round, or U-shaped).
● Weather-Resistant: Unaffected by wind, temperature, haze, sediment, or floating objects.
● Mobile App Support: Easily configure and control parameters wirelessly using a mobile phone app.
● Low power consumption, ideal for powering with solar power
● Optional Solar Power: Avoids frequent battery replacements.
● Virtually maintenance free

Technical Characteristics

Velocity Measurement System
Measuring Principle: Planar microstrip array antenna CW+FMCW
Operating Mode: Manual, automatic, telemetry
Applicable environment: 24-hour, rainy days
Operating temperature: -30~80℃
Operating Voltage: 7-32VDC;5.5-32VDC(Optional)
Working current: For 12VDC input, operating mode: <150mA
Standby mode: <1mA
Ambient temperature output: Temperature resolution 0.1℃;
temperature measurement accuracy: ±1℃
IP Rating: IP68

Radar Wave Velocity Meter
Radar power: 100mW
Radar frequency: 24GHz
Max measuring range: 40m
Velocity range: 0.03~20m/s
Velocity measurement accuracy: ±0.01m/s;±1%FS
Antenna angle: 12°
Measuring direction: Automatic recognition of water flow direction, built-in vertical angle correction

Radar Water Level Sensor
Radar power: 100mW
Radar frequency: 80Ghz(7-40m) 60GHZ (under 7m)
Measuring range: 40 meters
Measurement accuracy: ±3mm,±2mm
Antenna angle: 11°

Data transmission system
Data transmission: RS485 (default), RS232 (reserved), 4~20mA, 433MHz (optional), 4G (optional), NB-IoT (optional)