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Table of Contents
Related Manuals for Hach FH950
Summary of Contents for Hach FH950
- Page 1 DOC026.53.80210 FH950 04/2018, Edition 5 User Manual...
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Page 3: Table Of Contents
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 ...................... - Page 4 Table of Contents 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 ........................
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Page 5: Specifications
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 <... -
Page 6: User Interface Specifications
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... -
Page 7: Safety Information
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. -
Page 8: Product Overview
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. -
Page 9: Sensor Overview
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. -
Page 10: Meter Overview
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. -
Page 11: Product Components
Product components When purchasing a complete system, refer to Figure 4 to make sure that all components have been received. If any of these items are missing or damaged, contact the manufacturer or a sales representative immediately. Figure 4 System components 1 Carrying case (with slot for sensor cable) 8 Universal sensor mount 2 USB cable with mini-USB connector, 1 m (3 ft) -
Page 12: Lithium Battery Safety
mounting hole at the back of the sensor. Make sure that the mounting shaft is completely engaged with the mounting hole and the thumbscrew is engaged with the groove. 2. Hand tighten the thumbscrew. 3. Move a pole 1 inch or less in diameter through the clamp of the universal sensor mount. Tighten the clamp. -
Page 13: Charge The Battery
Figure 5 Install the battery Charge the battery Note: Battery charger substitution is not permitted. Use only the charger specified in the list of parts and accessories for the instrument. Refer to Replacement parts and accessories on page 30. Before initial use, fully charge the instrument battery with the supplied battery charger. A discharged battery is fully charged in approximately 8 hours. -
Page 14: Connect The Sensor To The Meter
Connect the sensor to the meter Attach the lanyard Attach the lanyard to wear the meter safely around the neck. 12 English... -
Page 15: Attach The Velcro Strap
Attach the velcro strap Use the velcro strap to hold the extra cable. Refer to Figure Figure 6 Attach the velcro strap 1 Loop side 2 Hook side User interface and navigation Keypad and key functions Figure 7 shows the meter keypad. Table 1 gives the functions of each key or key type. -
Page 16: Status Bar
Figure 7 Keypad 1 Power On/Off 6 Main Menu 2 OK 7 Underscore or decimal 3 Up and Down arrows 8 Backspace 4 Quick Jump 9 Alpha-numeric 5 Right and Left arrows 10 Previous menu Table 1 Key description Description Power On/Off Energizes and de-energizes the meter. -
Page 17: Navigation And Main Menu
Table 2 Status bar indicators Indicator Description Time and Date Shows the current time and date. Shows when a USB cable is connected. If a USB cable is connected and this indicator does not show in the status bar, the USB cable is not fully engaged. Make sure that the USB cable is pushed in completely and makes full contact with the connection port. - Page 18 Option Description Setup Allows the user to modify the main filter parameters and enable and program the Maximum Depth sensor positioning feature. The Maximum depth feature allows a user to enter system parameters for depth measurement in Real Time mode. The user can choose to enter a maximum depth value taken directly with a ruler measurement (manual), or taken indirectly with the depth measurement (automatic).
- Page 19 Figure 9 Real time screen for sensor with depth 2. Profiler— Select this option to do stream or conduit velocity measurements. The meter shows prompts when user input is necessary. The meter saves up to 10 profiles with up to 32 stations per profile.
- Page 20 Option Description Filter Applies a data acquisition filter (Main filter or Pre-filter). The user can select the filter parameters parameters. Main filter • Fixed Period Averaging (FPA)—Fixed Period Averaging averages data over a user selectable fixed period of time (1 to 480 seconds). The default is 10 seconds. If the FPA value is 5, the velocity value shown in the display is updated once every 5 seconds.
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Page 21: Startup And Self-Test
Option Description Station entry • Fixed—The operator puts in the width of the stream and the number of stations for measurements. The meter divides the cross-section into evenly spaced distances between the station verticals. • Non-fixed (default)—The operator selects the spacing between station verticals. This is the more commonly used option as it lets the operator include obstructions and other restrictions in the cross section. -
Page 22: Operation
Operation Stream profiles Stations and station spacing For a well-chosen cross-section, division into 25 to 30 partial sections is typically sufficient. If the cross-section is very smooth and the velocity distribution very consistent, it is possible to decrease the number of stations. Make the distance between the partial stations so that no individual station contains more than 10% of the discharge. -
Page 23: Measure Velocities In A Cross-Section
Figure 10 Position of user in the flow Measure velocities in a cross-section A typical stream cross-section is shown in Figure Figure 11 Example of a typical cross section To measure velocities in a cross-section: 1. In the Main Menu, select Profiler. 2. - Page 24 Option Description Files Used to view or delete files. Setup Used to set up filter parameters and the Maximum depth feature. 3. Select Setup > Maximum depth. Select Manual or Automatic. Option Description Manual In this mode, the instrument prompts the user to manually enter the maximum depth of each vertical.
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Page 25: Insert Or Delete A Station
9. In the Station menu, select Edge/Obstruction. Select one of the options. Option Description Left Select this option if the station is at the left edge of the water or an obstruction (i.e, sandbar, pylon or large boulder). Right Use this option if the station is at the right edge of water or an obstruction (i.e., sandbar, pylon or large boulder). -
Page 26: Conduit Profiles
1. Select Prev and push OK until the display shows the information for Station 3. 2. Select Ins and push OK. The instrument adds a new station named Station 4. Subsequent stations are automatically given new sequential numbers. 3. To delete the current station (when in non-fixed mode), select Del and push OK. Conduit profiles It is possible to use all of the methods for conduit profiles in this section in sites with a typical profile shape and sufficient depth to measure 3-point velocities. -
Page 27: Velocity/Level Integration Measurement Method
Figure 13 2-4-8 profile 1. In the Select Method menu, select 0.2/0.4/0.8. 2. Select one of the options. Option Description One point One-point measurement at 0.4 x maximum depth Two point Two-point measurement at 0.2 and 0.8 x maximum depth Three point Three-point measurement at 0.2, 0.4 and 0.8 x maximum depth 3. -
Page 28: 2D Measurement Method
The handheld unit gets information from the sensor and shows the average velocity value in numeric and graphical form. 5. If necessary, select Setup to change the Y-axis range in FPA filtering mode, the X and Y-axis range when in RC filtering mode or the data filter parameters. 6. -
Page 29: Download Data
7. Select Save or Run. 1. Go to http://www.hachflow.com. 2. Click Data Management. 3. Click Software Download Center. 4. Click the FH950 link. 5. Click PVMSetup.msi. 6. Select Save or Run. Update the firmware Note: All data files in mass storage are lost when the firmware is updated. To download data, refer to... -
Page 30: Clean The Sensor
The PVM Utility is necessary for this procedure. To download the PVM Utility, refer to Download the PVM utility on page 27. This is the general procedure to update firmware for the meter and sensor. To update the sensor firmware, the sensor must be connected to the meter. 1. -
Page 31: Clean The Meter
Clean the meter 1. Push the power button to de-energize the meter. 2. Use a clean, moist cloth to clean the meter exterior. Mix the water with a mild detergent if necessary. 3. Dry the meter exterior with a clean cloth. Let the meter dry in air completely before it is energized again. -
Page 32: Troubleshoot Errors
Table 5 Meter diagnostics (continued) Option Description Self test Makes the meter do a diagnostic self test. Key pad test Does a test of any button to make sure that the button is functional. Display test Does a test on the display to make sure that the display is functional. Event log Lets the user see, delete or export the event log. - Page 33 EM950.1040 Sensor with 30.5 m (100 ft) cable EM950.1100 Table 8 Handheld meter Description Item no. English/Metric FH950.1 Accessories Table 9 Wading rods Description Item no. Standard wading rod kit, English 75002 Standard wading rod kit, Metric (includes the bullet items below) 75002M •...
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Page 34: Appendix
Table 10 General accessories (continued) Description Item no. • Link connector 43025 • Weight hanger 43030XX01 • Weight pin 43035M • 6.8 kg (15 lb) lead weight 43040 Thumb screw kit (includes four thumb screws) 9073200 Universal sensor mount 75015 USB cable 9070800 Appendix... -
Page 35: Profiles And Measurements
q = flow at vertical The Mid-section method also divides the cross-section into individual flow segments. With the Mid- section method, the segments are not between verticals but are defined by half of the distance to neighbor verticals in each case. For this reason, the first and last verticals should be as near to the edges as possible (i.e., left edge of water (LEW) and right edge of water (REW)). -
Page 36: Site Selection
Figure 17 Typical profile 1 Depth 2 Velocity Site selection A site with the typical profile shape gives the most accurate results. Visual inspection is typically sufficient to identify problem sites. Use the information in these guidelines to help select the best site. These guidelines apply to conduit and stream profiles. - Page 37 surface of the water, the meter sets the velocity value to zero. For a profile or real-time reading, the meter prompts the user to submerge the sensor in the water. If the specific conductivity of the water being measured is very low, adjust the threshold value for the best performance.
- Page 38 36 English...
- Page 40 *DOC026.53.80210* HACH COMPANY World Headquarters P.O. Box 389, Loveland, CO 80539-0389 U.S.A. Tel. (970) 669-3050 (800) 368-2723 (U.S.A. only) U.S.A. – orders@hach.com International – international@hach.com flowtechsupport@hach.com www.hachflow.com © Hach Company/Hach Lange GmbH, 2012, 2014, 2018. All rights reserved.