Sigma 116 Series

Portable Transit Ultrasonic Flow Meter

Flow range: ±0.01 m/s~ ±6 m/s (12 m/s optional)
Accuracy: ±1% of measured value
Repeatability: 0.3%
Output: 4-20mA
Data recording with 1G SD high memory card,
maximum data retention of 512 days.
Internal lithium power supply: 16 hours
Pipe size range: from 25mm to 1200mm
Pipe materials: Carbon steel, stainless steel, PVC
Converter: portable magnet converter with IP68,
Operating temperature: 0C~+50C,
5m cable
Sensor operating temperature: -40℃ ~ +80℃
It supports SD card

Please note that Transit type ultrasonic flow meters are for applications in closed full pipes, and liquids with < 2% solids or bubbles

Model Sigma U2000-H

Portable Handheld Ultrasonic Flow meter

Accurate Flow Measurement of Clean Liquids with Non-Contacting TransducersTransducers can be mounted without shutting down flow and there is no obstruction or pressure drop.Recommended for fluids like water, glycol, and most chemicals.

Standard features:
•Light-weight, hand-held instrument with large, easy to read graphic display and switchable backlighting
•Flow range 0.1m/sec to 20m/sec bi-directional
•Sensors working temperature -40~90C (-40~160C optional)
•Useable with pipes ranging 15mm-6000mm outside diameter (Several types of transducers optional for selection,)
•Manual Totalizer
•Built-in datalogger can store over 2000 lines of data
•Simple ‘Quick Start’set up procedure
•Continuous flow monitoring, with ‘Totalised’ option
•Variable 4-20mA, 0-20mA or 0-16mA output proportional to flowrate, with simple range calibration
•Rechargeable battery with up to 20hrs continuous battery operation depending on load
•Mains/battery operation with battery charge management
•Diagnostics

Sigma 6100-EP series

Doppler Portable Ultrasonic Flow Meter

Sigma 6100-EP is a Doppler Portable Ultrasonic Flow Meter designed to measure volumetric flow in full pipes containing bubbles or suspended particles larger than 100 microns and in concentrations not less than 75ppm.
Sigma 6100-EP can display flow rate, has a flow totalizer, a 4-20mA output, Relays for Totalizer and Alarm outputs.

Features
Rechargeable battery can work up to 50 hours
It is suitable for pipe sizes ranging from 40 to 4000mm
For difficult liquids, corrosive chemicals, viscus liquids, wastewater, slurries, sludge, that contain bubbles or suspended particles larger than 100 microns and in concentrations not less than 75ppm.
Excellent low flow rate measurement ability, low to 0.05m/s
A wide range of flow measurement, high flow rate can reach 12m/s
High-temperature transducer is suitable to liquids of -35℃ ~ 200℃
Do not need to shut down the pipe flow when installing the transducers
User-friendly configuration
4-20mA, Relay Totalizer and Relay Alarm outputs
Accuracy: 2.0% Calibrated span

Technical Parameters：

Transmitter
Measurement principle: Doppler ultrasonic
Resolution: 0.50mm/s
Repeatability: 0.2% of reading
Accuracy: 0.5% -- 2.0% F.S.
Response time: 2-60s for optional
Flow Velocity Range: 0.05- 12 m/s
Liquid Types Supported: Liquids containing 100ppm of reflectors and at least 20% of the reflectors are larger than 100 micron.
Power Supply: AC: 85-265V , DC:24V/500mA
Enclosure type: Portable
Protection rating: IP65
Operating temperature: -20℃ to +60℃
Housing material: ABS
Measurement Channels: 1
Display: 2 line × 8 characters LCD, 8-digit rate or 8-digit total (resettable)
Units: User Configured (Imperial and Metric)
Rate: Rate and Velocity Display
Totalizer: gallons, ft³, barrels, lbs, liters, m³,kg
Communication: 4-20mA,relays for Totalizer and alarm output
keypad: 6pcs buttons
Size: Transmitter:235X125X45mm case:410X320X80mm
Weight: 3kg

Transducer
Transducers Type: Clamp-on
Protection rating: IP65
Max Liquid Temperature:Std. Temp.: -35℃~85℃ for short periods up to 120℃
High Temp.: -35℃~200℃ for short periods up to 250℃
Pipe diameter range: 40-4000 mm
Transducer Size: 60(h)*34(w)*33(d)mm
Material of transducer: Aluminum for standard temp. sensor, peek for high temp. sensor
Cable Length: Std: 5m

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)

Portable/Handheld surface water Flow Meter

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

A flow meter in a ruged cast-metal exterior and the world’s most sensitive transmitter/receiver as well as miniaturized and modernized electronics. Its direction sensing software and updated algorithms position the Pro II as a new-generation radar ideal for the task of accurate and reliable water flow measurement using Ka Band for superior performance in measuring water flow.
To make it better suited for the different elevated perspectives in comparing water flow at different times or locations, the flow meter utilizes a unique automatic vertical tilt compensation automatically adjusting its
speed reading based on the angle the radar points at the target flow.
With a vertical angle accuracy of ±2° and vertical angle resolution of 1°, if an operator takes one reading pointing down at 45°, then takes another at 50°, both flow readings will be adjusted and directly comparable.

Features
• Automatic vertical tilt compensation
• Units: m/s, cm/s, MPH, km/h, ft/s
• 0.2 m/s - 18.0 m/s range
• ±0.1 m/s accuracy
• Direction sensing
• Ka-Band for greater accuracy

General Specifications
Operating Frequency: 34.7 GHz (Ka-band)
Environmental: Operating: -30°C to +70°C, 90% relative humidity
Mechanical: Weight – 0.52 kg (1.15 lb) Diameter – 6.7 cm (2.6 in.) Length – 11.8 cm (4.7 in.)
Case Material – Aluminum and magnesium die cast
Accuracy: ±0.1 m/s; ±10 cm/s; ±0.22 MPH; ±0.36 km/h; ±0.32 ft/s
Speed Range: 0.2 m/s to 18.0 m/s; 20 cm/s to 1,800 cm/s; 0.4 MPH to 40 MPH;
0.72 km/h to 64.8 km/s; 0.66 ft/s to 59 ft/s
Vertical Angle Accuracy: ±2°
Vertical Angle Resolution: 1°

Factory Configuration
Tilt Sensor: Automatic vertical angle from internal tilt sensor or Selected in Field Configuration settings
Units: m/s (meters/sec), cm/s (centimeters/sec),MPH (miles/hour), km/h (kilometers/hour)
or ft/s (feet per second)
Serial Port: RS-232 and RS-485 simultaneously

Field Configuration
Transmit/Hold: Turns the microwave transmitter On or Off
Radar Zone: Away, Closing or Auto directional sensitivity may be selected
Horizontal Angle: Angles from 0° to 60° may be selected in 5° increments
Vertical Angle: If not configured for automatic vertical tilt angle, angles from 0° to 60° may be
selected in 5° increments
Sensitivity: 4 levels of field sensitivity may be selected (1/2/3/4 max)
Test Mode: Initiates a speed sensor self-test followed by a 60 second tuning fork mode, during
which time directionality screening is disabled and the speed sensor will respond to
any target direction (away or closing) or to non-directional targets (like tuning forks)