Measures flow in partially filled pipes and open channels
flume or weir required
4-20mA and Relay outputs for
connection to Samplers and SCADA
Powered with built-in rechargeable
2 million point
data logger with USB
output to Flash drives
Backlit LCD display for flow
rate, totalizer and menu system
Portable, Battery-powered and Easy to Set-up
The MantaRay Portable Area-Velocity Flow Meter measures
flow in open channels, partially filled and surcharged
pipes using an ultrasonic sensor. It's designed for
monitoring stormwater, sewage, industrial effluent,
irrigation water and natural streams. The MantaRay
displays and datalogs flow rate and total flow and connects
to samplers, SCADA and telemetry systems.
Calibration is simple: enter the pipe diameter or channel
dimensions and the MantaRay automatically computes and
displays the flow rate and total on its backlit LCD
display. Mount the sensor at the bottom of the pipe or
channel and hang the IP67 electronics case above the high
Hydrodynamic Ultrasonic Sensor
The MantaRay uses a submerged ultrasonic sensor to continuously measure
flow or reverse flow in open channels, partially filled or
surcharged pipes. The sensor is a completely sealed ultrasonic unit with no orifices or ports.
It is hydrodynamically shaped
and designed to shed deposits and stringers for reliable operation
in sewage, stormwater and stream flow applications.
The QZ02L sensor mounts inside the pipe or at the bottom of an
open channel. No special compounds, tools or hardware are required.
A stainless steel mounting bracket is included
and a size range of optional
pipe bands are available for sensor installation in manholes.
Stores 2-Million data
MantaRay stores up to 2-million data points including level, velocity and water
temperature. For reduced power consumption during flow surveys you
can activate the MantaRay's "sleep mode" to conserve energy
for extended operation.
Powered with built-in Batteries
The MantaRay's built-in, rechargeable batteries power
the flow meter. You can also connect external 12 or 24VDC
batteries to extend the MantaRay's operating time
indefinitely. Or connect the battery charger (supplied) for
continuous operation with 4-20mA and relay operation.
Greyline Logger software is included with each
this powerful program to
open and view data log files in graph and table formats. You can
generate flow reports with minimum, maximum average and total
flow or export the data to Excel spreadsheets and database programs.
Greyline Pipe Band Sensor Mounting for Area-Velocity Flow
the easy way - use a stainless steel pipe band for MantaRay
sensor mounting. You can install the sensor and tie wrap the
cable in place before you enter the manhole. Then insert the
pipe band into the manhole inlet pipe and tighten the
scissor-jack to expand the band for a friction fit inside
Installation of a MantaRay Portable Area-Velocity Flow
us prepare this battery-powered MantaRay for
installation in an
arch culvert for stream flow monitoring.
introduces the new MantaRay Portable Area-Velocity
The new MantaRay is
introduced at WEFTEC 2015 in Chicago, Illinois. The
battery-powered MantaRay flowmeter measures,
displays, transmits, totalizes and datalogs flow in
open channels and partially filled pipes. It is
designed to measure sewage, stormwater, irrigation
water and stream flow.