Easy to use PC software simplifies commissioning and product support.
Features include a point-and-click graphical interface to specify predefined
or non-standard pipe and channel cross-sections and remote flowmeter diagnostics
via email.
| System
Unit: |
- Rugged aluminium housing for permanent installation.
- Dimensions 360 mm high x 160 mm wide x 90 mm deep. Weight 4
kg.
- Environmental protection to IP65. IP68 available.
|
| Velocity Probe: |
- Streamlined mPVC moulding. Dimensions 105 mm long x 50 mm wide
x 20 mm high. Cable exit and pressure sensor mounting at rear.
- Reinforced cable – standard length 10 m, maximum length
500 m.
|
| Level Sensor: |
- Stainless steel pressure transmitter with desiccant protected
atmospheric reference.
- Sensor interface fully compatible with alternative level sensors
providing 4:20 mA signals.
|
| Measurement Display: |
- Large character LCD configurable for most engineering units.
Display sequence is user selectable from date, time, level, flow
cross-sectional area, signal quality, flow velocity, flow rate,
quantity of flow in last hour and total flow quantity.
- LCD legend available in various languages.
|
| Local Communications: |
- RS232 compatible local serial port.
- Automatic error detection protocol.
|
| PC Software: |
- Windows 98, Me, 2000 and XP compatible
- Mainstream Communicator software included with each flowmeter.
- Intuitive point-and-click user interface for flowmeter configuration,
diagnostics and real-time displays.
- Features include graphical interface to input the pipe/channel
cross-section, simple level sensor calibration procedure, real
time displays of measurements and velocity histogram, facilities
for remote diagnostics, plus backup and restore of Mainstream
configuration.
|
| Data Logger: |
- Integral data logger with recording rate configurable for 30
seconds, 1, 2, 3, 5, 6, 10, 12, 15, 20, 30 or 60 minute intervals.
Facility to organise logged data into daily records with user
selectable start time.
- Logger capacity approximately 250,000 measurements corresponding
to more than 6 months data at 2 minute intervals.
- Logger incorporates data compression for rapid data retrieval
using Mainstream Communicator software.
- Recorded measurements output in spreadsheet compatible format.
|
| Switch Outputs: |
- Two opto-isolated switch outputs, each rated at 60V ac/dc and
250 mA maximum current.
- Switches independently programmable to open or close at a user
defined level, ultrasound signal quality, velocity or flow rate.
Switches also configurable to generate pulses to indicate a user
defined flow quantity.
|
| 4:20
mA Outputs: (Optional) |
- Four opto-isolated 4:20 mA outputs transmitting level, ultrasound
signal quality, velocity and flow rate information with user defined
scaling.
- Outputs may be operated in active mode using integral isolated
24V dc supply or in passive mode powered by external measurement
loop.
|
| Power Supply: |
- Nominal 24V dc (18 to 30V) at 200 mA maximum current (optional
4:20 mA outputs operating in active mode).
- Auxiliary 12V dc input for low power (battery) applications
and uninterruptable operation. Low power operating modes down
to 2 Ah per month.
|
| Performance: |
- Bi-directional velocity measurement with better than 100:1 turndown
ratio. Velocity measurement range from 10 mm/S to 5 m/S. Resolution
1 mm/S.
- Guaranteed no zero offset or drift.
- Level measurement conversion accuracy better than 0.05% of full
scale.
- Flow measurement accuracy depends on installation and operating
conditions. Typically better than 2% in evaluation trials.
|
Optimal
performance is maintained by a processor embedded in the submerged probe
which adjusts operation according to the prevailing conditions. The probe
may be located up to 500 metres from the system unit and measures flow velocities
from less than 0.02 m/S up to 5 m/S.
