Hach AS950 Operation Manual
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Hach AS950 Operation Manual

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DOC346.53.80493
AS950 Controller
06/2016, Edition 8
Operations

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  • Page 1 DOC346.53.80493 AS950 Controller 06/2016, Edition 8 Operations...

  • Page 3: Table Of Contents

    Table of Contents Product overview ....................... 3 User interface and navigation ................3 Keypad and display description ................... 3 Main menu overview ....................4 Operation ........................5 Configuration ....................... 5 Configure the general settings ................5 Configure the hardware settings ................6 Configure the sensors ...................
  • Page 4 Table of Contents Calibrate the liquid detector ..................30 Appendix ........................30 Manning roughness coefficients ................30...

  • Page 5: Product Overview

    Refer to Figure 1 on page 3. The AS950 controller can also be used as the controller for the SD900 samplers and 900MAX samplers (AWRS, refrigerated and portable). Refer to the sampler installation and maintenance documentation for the AS950 controller specifications, installation, startup and maintenance information and the AS950 controller replacement parts and accessories.

  • Page 6: Main Menu Overview

    Table 1 Key functions Function Soft keys Selects the function shown on the display. Arrow keys Scrolls through the menus and the options. Enters values. Push and hold the arrow keys to scroll through values quickly. MENU Shows the main menu. Refer to Main menu overview on page 4.

  • Page 7: Operation

    Table 3 Main menu options (continued) Option Description Configures the sampler, sampler ports and attached sensors. Configures and calibrates the liquid detector. Hardware Setup Shows the Status screen, event log, alarm log and memory use. Shows the status and configuration of the AUX I/O port. Shows the cabinet temperature (AWRS sampler only). Completes a diagnostic test of the attached sensors, distributor arm, keypad and display.

  • Page 8: Configure The Hardware Settings

    Rain and Configures the Rain port for connection to the Hach tipping bucket rain gauge or RS485 Port RS485 communications. Options: Rain or RS485.
  • Page 9 Option Description Flow Settings Configures the sensor settings that are used to calculate the flow. Application Settings Configures the sensor settings that are used to control the sensor operation. (US900x) Advanced Settings Configures the optional, advanced sensor settings. Restore Defaults Sets the sensor settings and the sensor calibration back to the factory defaults.
  • Page 10 Table 5 Configuration options—US900X ultrasonic sensor (continued) Option Description Min Dist Selects the minimum distance from the sensor to the water. Options: 0.13 to 3.96 m (5.25 to 150.75 in.). Distances less than the minimum distance of the sensor are ignored. Max Dist Selects the maximum distance from the sensor to the water.
  • Page 11 Table 7 Primary device options Option Description Area Velocity Select the method of calculating the area, then go to Table 8. Options: Circular, Rectangular, Trapezoidal or U-Shaped. Flume Select an option, then go to Table 9. Options: British Rectangle, Cuthroat, H-Type, Leopold- Lagco, Montana, Palmer-Bowlus, Parshall, RBC, San Dimas or Trapezoidal.

  • Page 12: Configure The Aux I/O Port

    Enter the angle of notch in degrees (22.5 to 120°). Configure the AUX I/O port Configure the AUX I/O port if the AUX I/O port is connected to a Hach flow meter or third-party device. Note: If the optional IO9000 module is connected to the AUX I/O port, refer to the IO9000 module documentation to configure the AUX I/O port.

  • Page 13: Configure Data Logging

    Option Description 4mA Value Enters the flow volume that agrees with a 4 mA input at the AUX I/O port. Configure the analog output (flow output signal) of the flow meter to have the same flow value for 4 mA. 20mA Value Enters the flow volume that agrees with a 20 mA input at the AUX I/O port.

  • Page 14: Select And Configure The Alarms

    used when the alarm for the measurement is not active or when the alarm configuration is not set to Switch Log Interval. • Secondary logging interval—The logging interval that is used when the alarm for the measurement is active and the alarm is set to Switch Log Interval. Select and configure the alarms N O T I C E Configure data logging before the alarms are configured.

  • Page 15: Sampling Program Configuration

    Figure 2 High setpoint example 1 Measurement value 3 Setpoint trigger off 5 Setpoint value 2 Setpoint trigger on 4 Deadband 6 Time Sampling program configuration N O T I C E For flow-based sampling, configure the hardware settings before the sampling program is configured. N O T I C E When an alarm is used to control sampling, configure the alarms before the sampling program is configured.

  • Page 16: Enter The Bottle And Tubing Information

    Option Description Stormwater Dual sampling program for a stormwater application. The bottles in the sampler are divided between the two sampling programs. For example, one sampling program has a fixed time interval between samples. The other sampling program has a fixed flow interval between samples.

  • Page 17: Select The Sample Volume

    Option Description Time Collects a sample at two or more time intervals. Select this option for time-weighted sampling. Table Time Intervals—Selects the number of time intervals. Edit Intervals—Configures each time interval. Example: The time intervals selected are 50, 70 and 100 minutes. The Take First setting is set to After Interval.

  • Page 18: Select The Sample Distribution-Multiple Bottles

    CTVV sampling Constant Time Variable Volume (CTVV) sampling collects samples at a fixed time interval. But, the actual volume of each sample is based on the: • Entered flow range for the site • Entered sample volume range • Actual measured flow at the time of sampling The sample volume collected is based on the measured flow of the stream when the sample is collected.
  • Page 19 3. Select an option. Option Description Sample- Sets the sampler to divide each sample between a selected number of bottles or put multiple Based samples in one bottle. Bottles per Sample (BPS)—Sets the sampler to divide a sample equally between a selected number of bottles (e.g., when the sample volume is larger than the bottle volume).
  • Page 20 Figure 5 Example—Time-based distribution, 2-hour pacing and distribution Bottle 1 Bottle 2 Bottle 3 Bottle 12 08:00 to 09:59 10:00 to 11:59 12:00 to 13:59 06:00 to 07:59 Figure 6 Example—Time-based distribution, 1000 L pacing and 2-hour distribution Bottle 1 Bottle 2 Bottle 3 Bottle 12...

  • Page 21: Select When The Sampling Program Starts

    7. Set the options as follows. Option Set to: Delay Type Date and Time Date Enter the start date for the sampling program. Time Enter the start time for the sampling program. 8. Go directly to Select when the program stops on page 20.

  • Page 22: Select When The Program Stops

    Start the program on a trigger (optional) To do upset sampling, configure the sampling program to start on a trigger. 1. Push MENU. 2. Go to Programming>Sample Programming>Program Start>On Trigger. 3. Select an option. Option Description Setpoint Sets the sampling program to start when one or all of the selected channel alarms occur. External AUX Sets the sampling program to start when the external flow meter or a third-party device that is connected to the AUX I/O port sends a signal to the sampler.

  • Page 23: Configure Synchronized Sampling (Optional)

    Note: When there are two sampling programs on the first sampler, the sampling program on the second sampler starts when both sampling programs are complete. Item to collect: Cascade/Synchronized sampling cable (9505100) 1. Connect the cascade/synchronized sampling cable to the AUX port on each sampler. 2.

  • Page 24: Calibrate The Sample Volume-Liquid Detector Enabled

    Calibrate the sample volume—liquid detector enabled Calibrate the sample volume with the liquid detector enabled to adjust sample volumes slightly. 1. Push MENU. 2. Select Hardware Setup>Liquid Detect>Status. Make sure that the liquid detector is enabled. 3. Put the intake tubing into the sample water or tap water. Note: Use the sample water for best accuracy.

  • Page 25: Calibrate The Sample Volume-Liquid Detector Disabled

    9. Enter the adjustment value (e.g., –1%), then click OK. 10. For the refrigerated sampler or AWRS sampler, collect another grab sample as follows: a. Push Verify. b. Enter the sample volume that is specified in the sampling program. c. Push Grab. Note: As an alternative, do steps 3–5 again.

  • Page 26: Calibrate The Cabinet Temperature-Awrs Sampler

    1. Push CALIBRATION or push MENU and select Calibration. 2. Select the sensor to calibrate. 3. Obey the screen prompts to complete the procedure. Refer to the sensor documentation. Calibrate the cabinet temperature—AWRS sampler Refer to the service manual available on the manufacturer's website for the calibration procedure. Start or stop the program Start the sampling program to collect samples.
  • Page 27 Status Description Program Halted The sampling program was stopped temporarily by the user. Program Complete All of the programmed sample cycles are complete, or the sampling program was stopped by the user. 3. To see more information, push the UP and DOWN arrow keys to select an option, then push Select.

  • Page 28: Show The Sample History

    Show the sample history The sample history shows each sample that was collected, the time the sample was collected and if the sample collection was completed or not. The reasons for the missed samples shows. The sample history is automatically erased when the sampling program starts from the beginning. 1.

  • Page 29: Show The Alarm Log

    1. Put a USB 2.0 flash drive in the USB port. Note: Only USB 2.0 flash drives can be used with the AS950 controller. For faster performance, use a 2 to 16 GB flash drive. 2. Push MENU.

  • Page 30: Use Fsdata Desktop (Optional)

    3. Select Export/Import. Note: The more files on the USB flash drive, the longer "Detecting USB flash drive" shows on the display. 4. Select an option. Option Description Export Data Saves a copy of the user settings, log files, sample history and manufacturer settings to the USB flash drive.

  • Page 31: Start Or Stop The Pump

    4. Push Enter. The distributor arm moves to the selected bottle. Note: To stop the distributor arm at any time, push STOP. Start or stop the pump Operate the pump manually to collect a sample or purge the intake tubing. 1.

  • Page 32: Calibrate The Liquid Detector

    Option Description Sensor Ports Tells the sensors connected to the sampler do a measurement and supply advanced information used to identify if the sensor operation is correct. Shows the measurements and information applicable to the measurements. Shows the type and firmware version for each sensor. AUX (or Shows the configuration settings for the AUX I/O port, the flow input signal IO9000 module)
  • Page 33 Table 12 Closed conduit—partly full (continued) Non-metal Acrylic — 0.008 0.009 0.010 Glass — 0.009 0.010 0.013 Wood Stave 0.010 0.012 0.014 Laminated, treated 0.015 0.017 0.020 Clay Common drainage 0.011 0.013 0.017 tile Vitrified sewer 0.011 0.014 0.017 Vitrified sewer with 0.013 0.015 0.017...
  • Page 34 Table 13 Lined or built-up channels (continued) Concrete Trowel finish 0.011 0.013 0.015 Float finish 0.013 0.015 0.016 Finished, with gravel 0.015 0.017 0.020 on bottom Unfinished 0.014 0.017 0.020 Wood Planed, untreated 0.010 0.012 0.014 Planed, creosoted 0.011 0.012 0.015 Unplaned 0.011...
  • Page 36 Tel. +49 (0) 2 11 52 88-320 SWITZERLAND Fax (970) 669-2932 Fax +49 (0) 2 11 52 88-210 Tel. +41 22 594 6400 orders@hach.com info-de@hach.com Fax +41 22 594 6499 www.hach.com www.de.hach.com © Hach Company/Hach Lange GmbH, 2015–2016. All rights reserved. Printed in U.S.A.

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