OTT MF pro Manuel utilisateur
DOC026.53.80211
MF pro
09/2018, Edition 7
Operating Instructions
Table of Contents
Specifications.............................................................................................................. 3
Sensor specifications................................................................................................... 3
Portable meter specifications....................................................................................... 3
User interface specifications........................................................................................ 4
General specifications................................................................................................. 4
General information.................................................................................................. 5
Safety information........................................................................................................ 5
Use of hazard information.................................................................................... 5
Precautionary labels ............................................................................................ 5
Certification ........................................................................................................... 6
Product overview......................................................................................................... 6
System overview.................................................................................................. 6
Sensor overview................................................................................................... 7
Meter overview..................................................................................................... 8
Product components.................................................................................................... 9
Installation..................................................................................................................... 9
Installation with optional accessories........................................................................... 9
Install the sensor on the universal sensor mount........................................................ 9
Lithium battery safety................................................................................................. 10
Install the battery....................................................................................................... 10
Charge the battery..................................................................................................... 11
Connect the sensor to the meter............................................................................... 12
Attach the lanyard...................................................................................................... 12
Attach the velcro strap............................................................................................... 13
User interface and navigation............................................................................ 13
Keypad and key functions.......................................................................................... 13
Status bar.................................................................................................................. 14
Navigation and Main Menu ....................................................................................... 15
Startup and self-test............................................................................................... 19
Sleep mode................................................................................................................ 19
Operation..................................................................................................................... 20
Stream profiles........................................................................................................... 20
Stations and station spacing............................................................................... 20
Measure velocity................................................................................................. 20
Measure velocities in a cross-section.......................................................... 21
Insert or delete a station.............................................................................. 24
Conduit profiles.......................................................................................................... 24
0.9 x Vmax measurement method...................................................................... 24
0.2/0.4/0.8 method.............................................................................................. 25
Velocity/Level Integration measurement method............................................... 25
2D measurement method................................................................................... 26
Download data........................................................................................................... 27
Delete data files.................................................................................................. 27
Maintenance............................................................................................................... 27
Download the PVM utility........................................................................................... 27
1
Update the firmware.................................................................................................. 28
Clean the sensor........................................................................................................ 28
Clean the meter......................................................................................................... 29
Replace the battery.................................................................................................... 29
Troubleshooting....................................................................................................... 29
Diagnostics................................................................................................................ 29
Troubleshoot errors................................................................................................... 30
Replacement parts and accessories............................................................... 30
Appendix...................................................................................................................... 31
Mean-section and Mid-section methods.................................................................... 31
Profiles and measurements....................................................................................... 33
Site selection............................................................................................................. 34
Do a velocity calibration............................................................................................. 34
Wet/Dry threshold...................................................................................................... 34
Table of Contents
2
Specifications
Specifications are subject to change without notice.
Sensor specifications
Specification Details
Velocity measurement
Method Electromagnetic
Range 0 to 6.09 m/s (0 to 20 ft/s)
Minimum water depth 3.18 cm (1.25 in.)
Accuracy ±2% of reading ±0.015 m/s (±0.05 ft/s) 0 to 3.04 m/s (0 to 10 ft/s); ± 4% of reading from
3.04 to 4.87 m/s (10 to 16 ft/s)
Resolution 0 ≤ value < 10: 3 decimal places; 10 ≤ value < 100: 2 decimal places; 100 ≤ value <
1000: 1 decimal place; value ≥ 1000: 0 decimal places
Zero stability ±0.015 m/s (±0.05 ft/s)
Material ABS, glass filled
Enclosure rating IP68
Dimensions (L x W x H) 11.9 x 4.3 x 6.3 cm (4.7 x 1.7 x 2.5 in.)
Cable material Polyurethane jacketed
Cable lengths 2, 6.1, 12.2 and 30.5 m (6.5, 20, 40 and 100 ft)
Depth measurement
Method Diaphragm type: absolute pressure with single point calibration
Accuracy (static) The larger of ± 2% of reading or ± 0.015 m (± 0.504 inches). Steady state temperature
and static non-flowing water.
Range 3.05 m (0-10 ft)
Resolution 0 ≤ value < 10: 3 decimal places; 10 ≤ value < 100: 2 decimal places; 100 ≤ value <
1000: 1 decimal place; value ≥ 1000: 0 decimal places
Portable meter specifications
Specification Details
Pollution degree 2
Protection class II
Charging temperature 0 to 40 ºC (32 to 104 ºF)
Operating temperature –20 to 55 ºC (-4 to 131 ºF)
Storage temperature –20 to 60 ºC (-4 to 140 ºF )
Enclosure rating IP67
Battery life gauge Five-segment bar graph
Battery type Rechargeable lithium ion, 3.6 V, 5.0 Ah, 18 Wh
English 3
Specification Details
Battery life 18 hours heavy typical day use1; 20 ºC (68 ºF)
Battery charger External power adapter, energy efficiency VI, 100–240 VAC, 50–60 Hz, 0.5 A input;
12 VDC, 1.25 A output
Dimensions (L x W x H) 21.8 x 9.3 x 5.3 cm (8.6 x 3.7 x 2.1 in.)
USB connector Type Mini-B, 5-pin, rated to IP67 when capped
Material Polycarbonate with a thermoplastic elastomer (TPE) overmold
User interface specifications
Specification Details
Graphics display Color, LCD 3.5" QVGA transflective (readable in direct sunlight)
Measurement resolution 0 ≤ value < 10: 3 decimal places; 10 ≤ value < 100: 2 decimal places; 100 ≤ value <
1000: 1 decimal place; value ≥ 1000: 0 decimal places
Keypad Alpha-numeric
Operating modes Real time, profiling
Profile types Stream, conduit
Conduit shapes Circular, rectangular, trapezoidal, 2/3 egg, inverted 2/3 egg
Stream entries Fixed, non-fixed stations
Noise rejection User-selectable, 50 Hz or 60 Hz
Units of measure Velocity: ft/s, m/s, cm/s, mm/s
Flow: ft3/sec, million gal/day, gal/day, gal/min, m3/s, m3/min, m3/hour, m3/day, liters/s,
liters/min
Depth: in., ft, m, cm, mm
Stream flow calculation Mean-section or mid-section method
Diagnostics Self test, keypad, display, event log
Conduit profiling methods 0.9 x Vmax, 0.2/0.4/0.8, velocity and level integrator, 2D
Stream profiling methods 1, 2, 3, 4, 5 and 6 point (velocity method - USGS and ISO), 2 point KREPS method,
1 point surface method, 1 and 2 point ice method
File types Real-time, profiling, event log
Languages English, French, Spanish, German, Italian, Dutch, Danish, Swedish, Chinese, Polish,
Japanese, Korean, Portuguese, Slovak, Russian, Hungarian, Bulgarian, Romanian,
Czech, Turkish, Finnish, Greek
General specifications
Specification Details
Maximum number of real-time files 50 each with up to 75 readings captured by the user.
Firmware The sensor and portable meter are field upgradeable via USB
1Defined as 30 minutes of set up, six 1-hour periods of continuous use with an active sensor and
the display at maximum brightness and 30 minutes of sleep mode between use periods, data
download and power off.
4 English
General information
In no event will the manufacturer be liable for direct, indirect, special, incidental or consequential
damages resulting from any defect or omission in this manual. The manufacturer reserves the right to
make changes in this manual and the products it describes at any time, without notice or obligation.
Revised editions are found on the manufacturer’s website.
Safety information
N O T I C E
The manufacturer is not responsible for any damages due to misapplication or misuse of this product including,
without limitation, direct, incidental and consequential damages, and disclaims such damages to the full extent
permitted under applicable law. The user is solely responsible to identify critical application risks and install
appropriate mechanisms to protect processes during a possible equipment malfunction.
Please read this entire manual before unpacking, setting up or operating this equipment. Pay
attention to all danger and caution statements. Failure to do so could result in serious injury to the
operator or damage to the equipment.
Make sure that the protection provided by this equipment is not impaired. Do not use or install this
equipment in any manner other than that specified in this manual.
Use of hazard information
D A N G E R
Indicates a potentially or imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
Indicates a potentially or imminently hazardous situation which, if not avoided, could result in death or serious
injury.
CAUTION
Indicates a potentially hazardous situation that may result in minor or moderate injury.
N O T I C E
Indicates a situation which, if not avoided, may cause damage to the instrument. Information that requires special
emphasis.
Precautionary labels
Read all labels and tags attached to the instrument. Personal injury or damage to the instrument
could occur if not observed. A symbol on the instrument is referenced in the manual with a
precautionary statement.
This is the safety alert symbol. Obey all safety messages that follow this symbol to avoid potential
injury. If on the instrument, refer to the instruction manual for operation or safety information.
This symbol indicates the presence of devices sensitive to Electro-static Discharge (ESD) and
indicates that care must be taken to prevent damage with the equipment.
Electrical equipment marked with this symbol may not be disposed of in European domestic or public
disposal systems. Return old or end-of-life equipment to the manufacturer for disposal at no charge to
the user.
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Certification
CAUTION
This equipment is not intended for use in residential environments and may not provide adequate protection to
radio reception in such environments.
Canadian Radio Interference-Causing Equipment Regulation, IECS-003, Class A:
Supporting test records reside with the manufacturer.
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numérique de classe A répond à toutes les exigences de la réglementation canadienne
sur les équipements provoquant des interférences.
FCC Part 15, Class "A" Limits
Supporting test records reside with the manufacturer. The device complies with Part 15 of the FCC
Rules. Operation is subject to the following conditions:
1. The equipment may not cause harmful interference.
2. The equipment must accept any interference received, including interference that may cause
undesired operation.
Changes or modifications to this equipment not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment. This equipment has been tested
and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules.
These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference, in which case the user will be required to
correct the interference at their expense. The following techniques can be used to reduce
interference problems:
1. Disconnect the equipment from its power source to verify that it is or is not the source of the
interference.
2. If the equipment is connected to the same outlet as the device experiencing interference, connect
the equipment to a different outlet.
3. Move the equipment away from the device receiving the interference.
4. Reposition the receiving antenna for the device receiving the interference.
5. Try combinations of the above.
Product overview
The portable velocity system is used in the field, laboratory and municipalities. Turbulent, noisy and
low flows can be measured with this system.
When the sensor is placed in flowing water, a magnetic field around the sensor creates a voltage
proportional to the flow velocity. This voltage amplitude, which represents the rate of water flow
around the sensor, is detected by electrodes in the sensor and processed by the sensor
microprocessor. The processed signal is digitally transmitted through the sensor cable to the portable
meter and the information is shown on the meter display. The system includes a portable meter,
sensor with cable and accessories.
The meter and sensor get velocity information in conduits and streams. These measurements are
important for calibration in municipal wastewater industries, as well as for developing and maintaining
stage discharge relationship curves.
Two types of sensor are available: velocity-only and velocity plus depth. This manual covers both
types of sensors. If information applies to a specified type of sensor, this fact is noted in the text.
System overview
An overview of an assembled system is shown in Figure 1. Refer to the documentation supplied with
the individual components or accessories for more information.
6 English
Figure 1 Assembled components
1 Portable meter 7 Sensor height lock/release screw (accessory)
2 Sensor height lock/release device 8 20 mm/HERES wading rod adapter (accessory)
3 Top setting wading rod (accessory) 9 20 mm wading rod (accessory)
4 Sensor cable 10 HERES wading rod (accessory)
5 Adjustable mount for portable meter 11 Sensor height lock/release screw
6 Sensor assembly
Sensor overview
Figure 2 shows the main sensor components. Instructions for how to attach the sensor on a standard
or top-setting or HERES or 20 mm wading rod are supplied with the accessory.
English 7
Figure 2 Sensor components
1 Sensor electrodes 5 Pressure cell (sensors with depth option)
2 Sensor body 6 Sensor with depth option
3 Sensor connection plug 7 Sensor without depth option
4 Sensor attachment thumb screw
Meter overview
Figure 3 shows the features of the meter.
Figure 3 Meter components
1 USB connection port26 Threaded hole for adjustable meter mount
2 Keypad 7 Slots for velcro or strap attachment
3 Meter display 8 Slot for neck strap attachment threads (2x)
4 Expansion port (not used) 9 Sensor connection port
5 Battery compartment cover 10 Battery charger connector
2Do not use the USB connection to charge the battery.
8 English
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