Hach FH950 Manuel utilisateur

DOC026.53.80210

FH950

04/2018, Edition 5

User Manual

Table of Contents

Specifications.............................................................................................................. 3

Sensor specifications................................................................................................... 3

Portable meter specifications....................................................................................... 3

User interface specifications........................................................................................ 4

General specifications................................................................................................. 4

General information.................................................................................................. 4

Safety information........................................................................................................ 5

Use of hazard information.................................................................................... 5

Precautionary labels ............................................................................................ 5

Certification ........................................................................................................... 5

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.............................................................................. 23

Conduit profiles.......................................................................................................... 24

0.9 x Vmax measurement method...................................................................... 24

0.2/0.4/0.8 method.............................................................................................. 24

Velocity/Level Integration measurement method............................................... 25

2D measurement method................................................................................... 26

Download data........................................................................................................... 27

Delete data files.................................................................................................. 27

Maintenance............................................................................................................... 27

Download the PVM utility........................................................................................... 27

Update the firmware.................................................................................................. 27

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...................................................................................................................... 32

Mean-section and Mid-section methods.................................................................... 32

Profiles and measurements....................................................................................... 33

Site selection............................................................................................................. 34

Do a velocity calibration............................................................................................. 34

Wet/Dry threshold...................................................................................................... 34

Table of Contents

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 0.01 value < 100; 0.1 value < 1000; 1.0 value ≥ 1000

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 1.5, 6.1, 12.2 and 30.5 m (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 0.01 value < 100; 0.1 value < 1000; 1.0 value ≥ 1000

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

Battery life 18 hours heavy typical day use1; 20 ºC (68 ºF)

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.

English 3

Specification Details

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 0.01 value < 100; 0.1 value < 1000; 1.0 value ≥ 1000

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, 5 and 6 point (velocity method - USGS and ISO)

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

Profiles Data storage for up to 10 profiles with 32 stations per profile

Maximum number of real-time files Three each with up to 75 readings captured by the user.

Firmware The sensor and portable meter are field upgradeable via USB

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.

4 English

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.

Certification

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

English 5

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.

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 environmental-impact

evaluations.

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 5 Adjustable mount for portable meter

2 Sensor height lock/release device 6 Sensor assembly

3 Top setting wading rod (accessory) 7 Flow direction

4 Sensor cable

Sensor overview

Figure 2 shows the main sensor components. Instructions for how to attach the sensor on a standard

or top-setting 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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