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GLI International Accu4 Operating Instructions Manual

Low-range turbidimeter system model t53 analyzer and 8320 sensor
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OPERATING INSTRUCTION MANUAL
Worldwide Headquarters and Sales:
GLI International, Inc.
9020 West Dean Road
Milwaukee, Wisconsin 53224
U.S.A.
In the interest of improving and updating its equipment, GLI reserves the right to alter specifications to equipment at any time.
Rev. 2-300
GLI_Turbidimeter_Accu4_om_D300
Accu4™
Low-range
Turbidimeter System
(Model T53 Analyzer and 8320 Sensor)
Phone:
[414] 355-3601
Fax:
[414] 355-8346
E-mail:
info@gliint.com
Web:
www.gliint.com
A
Viridor Instrumentation
1
Represented By:
company
Accu4™ Low-range Turbidimeter System

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  • Page 1 9020 West Dean Road E-mail: info@gliint.com Milwaukee, Wisconsin 53224 Web: www.gliint.com U.S.A. In the interest of improving and updating its equipment, GLI reserves the right to alter specifications to equipment at any time. Viridor Instrumentation company Rev. 2-300 Accu4™ Low-range Turbidimeter System...
  • Page 2 Back to MANUALS Menu Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 3: Important Safety Information

    A WARNING LOOKS LIKE THIS. IT WARNS YOU OF THE POTENTIAL FOR PERSONAL INJURY. CAUTION: A CAUTION LOOKS LIKE THIS. IT ALERTS YOU TO POSSIBLE INSTRUMENT MALFUNCTION OR DAMAGE. NOTE: A note looks like this. It alerts you to important operating information. Rev. 2-300 Accu4™ Low-range Turbidimeter System...
  • Page 4 A warranty claim will not be honored if defects are not reported within the warranty period, or if GLI International determines that defects or damages are due to normal wear, misapplication, lack of maintenance, abuse, improper installation, alteration, or abnormal conditions.
  • Page 5 Back to MANUALS Menu CONDENSED OPERATING INSTRUCTIONS This manual contains details for all operating aspects of the Accu4™ Low-range Turbidimeter System. The following condensed instructions are provided to assist you in getting the system started up and op- erating as quickly as possible. These condensed instructions only pertain to basic turbidity measurement operation.
  • Page 6 Back to MANUALS Menu Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 7: Table Of Contents

    MENU STRUCTURE 2.1 Displaying Main Branch Selection Screen ..........35 2.2 Displaying Top-level Menu Screens..........35-36 2.3 Displaying Submenu Screens ............... 36 2.4 Adjusting Edit/Selection Screen Values ...........36-37 2.5 Entering (Storing) Edit/Selection Screen Values/Choices..... 37 Rev. 2-300 Accu4™ Low-range Turbidimeter System...
  • Page 8 6.3 OVERFEED RESET (relay timers) ............65 6.4 OUTPUT (1 and 2) Analog Test Signals ..........65-66 6.5 RELAY (A, B, C, and D) Operating Test..........66 6.6 SENSOR TYPE Checking ..............66-67 6.7 EPROM VERSION Checking ..............67 Accu4™ Low-range Turbidimeter System Rev. 2-300...
  • Page 9 1.3 Replacing Sensor Light Source or Detector: Removing Inoperative Part .............. 83 Installing New Part ..............83-84 Re-calibrating Measurement System ..........84 1.4 Replacing Fuse(s) ................. 85 1.5 Replacing Relays .................. 85 1.6 Inspecting Sensor Cable ............... 85 Rev. 2-300 Accu4™ Low-range Turbidimeter System...
  • Page 10 P A R T F I V E - S P A R E P A R T S A N D A C C E S S O R I E S ......................... 91 Accu4™ Low-range Turbidimeter System Rev. 2-300...
  • Page 11 Relay Configuration Settings ................... 46-47 Table B Analyzer Configuration Settings (Ranges/Choices and Defaults) .......... 49 Table C Relay Overfeed Timer Interactions with Other Analyzer Functions........70 Table D System Diagnostic Condition Status Screens/Meanings............88 Rev. 2-300 Accu4™ Low-range Turbidimeter System...
  • Page 12 Back to MANUALS Menu Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 13: Part O N E - I N T R O D U C T I O N

    P A R T O N E - I N T R O D U C T I O N ECTION GENERAL INFORMATION 1.1 Capability Highlights The Accu4™ Low-range Turbidimeter System employs a High Accuracy with technologically-advanced sensor to provide high measure- Minimal Maintenance ment accuracy and stability, while reducing maintenance requirements.
  • Page 14 (any FAIL condition, or sensor CHAMBER DIRTY or UNKNOWN condition). A “WARNING CHECK STATUS” message automatically flashes on the MEASURE screen whenever the analyzer detects any of these system diagnostic conditions: Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 15: Modular Construction

    A label with the analyzer model number, serial number, build date, and other items is affixed to the top of the ana- Serial Numbers lyzer enclosure. A similar label is affixed to the sensor. Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 16: Emi/Rfi Immunity

    U.S. standards and meets European IEC 801-series testing for electromagnetic and radio fre- quency emissions and susceptibility. Refer to Figure 1-1 and the specifications in Section 2.2 for more information. FIGURE 1-1 EMI/RFI Immunity Diagram Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 17: Specifications

    Operational Mode ....Each relay (A, B, C, and D) can be assigned to be driven by the measured turbidity or diagnostics Function Modes: Control...... Settings for high/low phasing, setpoint, dead- band, overfeed timer, off delay, and on delay Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 18: Section 2 Specifications

    System Accuracy ....... ± 2% of reading, all ranges System Performance Sensitivity ........0.001 NTU Repeatability ......0.1% of span or better (electrical, analog outputs) Temperature Drift ....... Zero and Span: 0.01% of span per ° C Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 19: Part T W O - I N S T A L L A T I O N

    The sensor may be installed in an “in line” process configuration using a closed loop piping arrangement (Fig- ure 2-1) or in a sample bypass line configuration using an open drain piping arrangement (Figure 2-2). FIGURE 2-1 Recommended Closed-loop Sensor Piping Arrangement Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 20: Sensor Mounting

    GLI pipe mount kit. Refer to Part Five -- Spare Parts -- for the GLI part number. NOTE: Avoid locations where Model 8320 ambient tempera- ture limits (32-140°F; 0-60°C) may be exceeded. Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 21: Figure 2-3 Standard Design Model 8320 Sensor -- Installation Dimension Details

    Note: Dimensions shown in inches (mm). FIGURE 2-3 Standard Design Model 8320 Sensor -- Installation Dimension Details Note: Dimensions shown in inches (mm). FIGURE 2-4 High Pressure Design Model 8320 Sensor -- Installation Dimension Details Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 22: Sensor Plumbing Connections

    Figure 2-5 illustrates the best sampling point location: side-of-pipe with sam- ple line inserted to the process pipe centerline. Figure 2-5 Sampling Point Guidelines for Process Pipe Plumbing Connection Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 23: Analyzer Location

    Determine the mounting method and attach the hardware as shown in the respective illustration. Refer to Figure 2-7 for analyzer in- stallation dimension details. FIGURE 2-6 Analyzer Mounting Arrangements Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 24: Sensor And Analyzer Conduit Hole Requirements

    NOTE: Use NEMA 4 (≅ CSA type 4; ≅ IP65) rated fittings and plugs to maintain the watertight integrity of the NEMA 4X sensor and analyzer enclosures, and to comply with Div. 2 hazardous area requirements. Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 25: Electrical Connections

    NOTE: Do not route sensor cable in any conduit containing AC power wiring (“electrical noise” may interfere with sensor signal). Also, always re-calibrate the system when the cable length between sensor and analyzer changes. Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 26: Figure 2-8 Terminal Block Designations For Analyzers With "B" Prefix Serial Number

    FIGURE 2-8 Terminal Block Designations for Analyzers with “B” Prefix Serial Number 7% 785%,',7< 6(1625 +22.83            FIGURE 2-9 Terminal Block Designations for Analyzers with No Letter Prefix Serial Number Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 27: Figure 2-10 Connecting Model 8320 Low-Range Turbidity Sensor To Analyzers With "B" Prefix Serial Number

    TURBIDITY INTERCONNECT FIGURE 2-10 Connecting Model 8320 Low-range Turbidity Sensor to Analyzers with “B” Prefix Serial Number FIGURE 2-11 Connecting Model 8320 Low-range Turbidity Sensor to Analyzers with No Letter Prefix Serial Number Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 28: Analog Outputs

    LARGER CURRENTS, USE AN AUXILIARY RELAY SWITCHED BY THE ANALYZER RELAY TO EXTEND ANALYZER RELAY LIFE. WHEN USING RELAY OUTPUTS, MAKE SURE THAT LINE POWER WIRING CAN ADEQUATELY CONDUCT CURRENT DRAW OF THE SWITCHED LOAD(S). Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 29: Closed Contact Ttl Input

    • Hold the analog outputs at their present values. • Hold all CONTROL or ALARM relays at their present on/off states. To activate holding the analog outputs and relays, remotely or locally jumper Terminals 9 and 10 on TB1. Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 30: Line Power

    “N” terminal. FIGURE 2-13 FIGURE 2-14 Connecting 115 V Single Phase Connecting 115 V Single Phase to Analyzers with “B” Prefix Serial Number to Analyzers with No Letter Prefix Serial Number Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 31: Figure 2-18 Connecting 230 V Split Phase To Analyzers With No Letter Prefix Serial Number

    Analyzers with No Letter Prefix Serial Number FIGURE 2-17 FIGURE 2-18 Connecting 230 V Split Phase Connecting 230 V Split Phase to Analyzers with “B” Prefix Serial Number to Analyzers with No Letter Prefix Serial Number Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 32: Part T H R E E - O P E R A T I O N

    1. MENU key: Pressing this key always displays the top of the menu tree (“MAIN MENU” selection screen). To display the top-level menu screen for a desired main branch (CALIBRATE, CONFIGURE, or TEST/MAINT), Ø Ø × × keys to select the corresponding line, and Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 33: Figure 3-1 Analyzer Keypad

    • Edit/Selection Screens: “Fine” adjusts the displayed numerical value (holding key down changes value faster), or moves up or down between choices. FIGURE 3-1 Analyzer Keypad Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 34: Measure Screen (Normal Display Mode)

    When a measured value is beyond the analyzer measuring range, a series of “ + ” or “ - ” screen symbols appear, re- spectively indicating that the value is above or below range. Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 35: Menu Structure

    Some menu lists are too long to completely fit on the È È screen. A symbol at the bottom right of the list indicates Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 36: Displaying Submenu Screens

    Pressing the ENTER key saves the change. Õ Õ Ö Ö Use the keys to “coarse” adjust numerical values. × × Ø Ø keys “fine” adjust numerical values up or Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 37: Entering (Storing) Edit/Selection Screen Values/Choices

    Ambient lighting conditions may make it necessary to adjust the analyzer display contrast to improve visibility. With the MEASURE screen displayed, press and hold the ENTER × × Ø Ø key and simultaneously press the key until attaining the desired contrast. Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 38: Configuring The Analyzer

    MEASURE screen top line notation to specifically tailor the instrument to your application. SELECT UNITS The Accu4™ Low-range Turbidimeter System is factory set to display turbidity in NTUs. However, you may want to select different measurement units: Accu4™ Low-range Turbidimeter System...

  • Page 39: Set Filter Time

    3. Adjust the displayed value to the desired filter time, and Ö Ö Õ Õ press ENTER key to enter the value. (Use × × Ø Ø keys for coarse adjust; keys for fine adjust.) Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 40: Select Pulse Suppress (On/Off)

    3. With the desired choice displayed, press ENTER key to enter this selection. ENTER NOTE (top line The MEASURE screen top line is factory set to read “ACCU4.” of MEASURE screen) This notation can be changed, for example, to “BASIN 1” to tailor the MEASURE screen to the application.

  • Page 41: Configuring Analog Outputs (1 And 2)

    SET 0/4 and which the minimum and maximum output values are desired. 20 mA VALUES 1. With the top-level menu screen dis- played and the “SET OUTPUT 1” line selected, press ENTER key to display Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 42: Set Transfer Value (Ma)

    3. Set the displayed value to the desired transfer value, Ö Ö Õ Õ and press ENTER key to enter it. (Use keys × × Ø Ø keys for fine adjust.) for coarse adjust; Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 43: Set Filter Time

    2. Press ENTER key to display . Use Ø Ø × × keys to view both choices (0 mA or 4 mA). 3. With the desired choice displayed, press ENTER key to enter this selection. Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 44: Configuring Relays (A, B, C, And D)

    It can be configured for: FAIL mode -- sets STATUS relay to activate when there is a FAIL condition (analyzer, light source or detector) or a sensor CHAMBER UNKNOWN condition. Accu4™ Low-range Turbidimeter System Rev. 2-300...
  • Page 45 Ø Ø key to display a screen like . Use × × keys to view the choices (ALARM, CONTROL or STATUS). 4. With the desired choice displayed, press ENTER key to enter this selection. Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 46: Set Transfer Mode (Relay On Or Off)

    A “high” phase assigns the relay setpoint to respond to increasing measured value; conversely, a “low” phase assigns the relay setpoint to respond to de- creasing measured value. Setpoint Sets the value at which the relay will turn on. Accu4™ Low-range Turbidimeter System Rev. 2-300...
  • Page 47 “ACTIVATION” line. 2. Press ENTER key to display Ø Ø 3. Use key to select the appropriate relay setting line, and press ENTER key to display its corresponding edit/selection screen. Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 48: Set Passcode (Feature Enabled Or Disabled)

    “SET PASSCODE” line. 2. Press ENTER key to display . Use Ø Ø × × keys to view both choices (DISABLED or ENABLED). 3. With the desired choice displayed, press ENTER key to enter this selection. Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 49: Configuration Settings Summary (Ranges/Choices And Defaults)

    SENSOR Configuration Settings SET FILTER? 0-60 seconds 30 seconds PULSE SUPPRESS? OFF or ON ENTER NOTE? Enter up to eight characters to replace ACCU4 ACCU4 Analog OUTPUT Configuration Settings SET 4mA VALUE? 0.000-100.0 NTU 0.000 NTU SET 20mA VALUE? 0.000-100.0 NTU 100.0 NTU...

  • Page 50: Calibrating The Analyzer

    SECTION 5 - CALIBRATING THE ANALYZER ECTION CALIBRATING THE ANALYZER 5.1 Things to Know The Accu4™ Low-range Turbidimeter System can be cali- About Calibration brated using one of three methods: • PRIMARY CAL: Requires entering a primary standard value of a formazin suspension.

  • Page 51: Primary Cal Method (Requires Formazin Suspension)

    CARCINOGEN. TAKE PRECAUTIONS TO AVOID INHALATION, INGESTION, AND SKIN CONTACT. A. SOLUTION 1: Dissolve 5.00 grams of reagent- grade hydrazine sulfate, (NH , in distilled water and dilute to 500 ml in a volumetric flask. Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 52: Filling Sensor

    &21),*85( 7(670$,17 (;,7 A. Press MENU key to display B. With the “CALIBRATE” line selected (reverse video), press ENTER key to display Accu4™ Low-range Turbidimeter System Rev. 2-300...
  • Page 53 SIGHT TUBE. Now drain this rinse suspension in the same way as described in step 4. Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 54: Entering Value

    Ö Ö chamber ( points towards INLET fitting). 3. If using the recommended isolation valve downstream of the Model 8320 sensor OUTLET fitting, make sure it is open to allow process flow. Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 55: Cube Cal Method

    “CUBE CAL” line and press × × ENTER key to display . Use Ø Ø key to view the three states that the analog out- puts (and relays) can be in during calibration: Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 56: Tm Assembly)

    1. With the screen displayed and the Cal- Cube assembly inserted in the sensor, press ENTER key to confirm. This active screen ap- pears showing the measurement reading. Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 57: Tm Assembly

    This calibration method requires you to first obtain a proc- ess sample, determine its NTU value using laboratory (requires sample analysis or a comparison reading, and then enter its known with value determined value. by laboratory analysis or portable meter) Rev. 2-300 Accu4™ Low-range Turbidimeter System...
  • Page 58 After the reading has stabilized, this static screen appears showing the “last- entered” calibration value. 8. Obtain a process sample and determine its NTU value using laboratory analysis or a calibrated portable meter. Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 59: Analog Outputs (1 And 2) Calibration

    1. Press MENU key to display 2. With the “CALIBRATE” line selected (shown in reverse video), press ENTER key to display Ø Ø 3. Use key to select the “CAL OUTPUTS” line, and press ENTER key to display Rev. 2-300 Accu4™ Low-range Turbidimeter System...
  • Page 60 (fine adjust) to adjust Output 1’s maximum value to read exactly “20.00 mA” on the digital multimeter -- not the analyzer display. 12. Press ENTER key to complete calibration of the maximum endpoint value. This completes Output 1 calibration. Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 61: Test/Maintenance

    , and use Ø Ø key to select the “TEST/MAINT” line. 2. Press ENTER key to display 3. With the “STATUS” line selected, press ENTER key to display the “STATUS: ANALYZER OK” screen. This Rev. 2-300 Accu4™ Low-range Turbidimeter System...
  • Page 62 With the “STATUS: DETECT 2” screen displayed, press ENTER key once to view the “STATUS: RLY A” screen. Subsequent ENTER key presses display status screens for Relay B, C, and D. Relay status indications can be: Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 63: Check Cal/Hold Outputs

    NOTE: COUNTING only applies to control relays. 8. To end status checking, press ESC or ENTER key . 6.2 CHECK CAL/HOLD The Accu4™ system has a convenient feature to easily check Outputs calibration at any time, and to hold the analog outputs (1 and 2) at their present values, suspending operation of any con- nected devices.
  • Page 64 “CONFIRM ACTIVE?” output status screen. When the reading corresponds to the actual typical process value and is stable, press ENTER key again to change the analog output states back to active. Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 65: Overfeed Reset (Relay Timers)

    1. With the screen displayed, use to select the “OUTPUT 1” line. 2. Press ENTER display screen like NOTE: The mA test signal for Output 1 is now active. Its value is shown on this screen. Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 66: Relay (A, B, C, And D) Operating Test

    ESC or ENTER key . 6.6 SENSOR TYPE You can check the type of sensor used with your analyzer. Checking Ø Ø 1. With the screen displayed, use to select the “SENSOR TYPE” line. Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 67: Eprom Version Checking

    NOTE: The value shown on this screen is now active, providing a corresponding mA value for both analog output signals. (The relays, depending on their configured settings, may also respond to this simulation value.) Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 68: Reset Defaults

    3. Press ENTER key to reset all stored configuration set- tings to factory defaults (“RESET DEFAULTS: DONE” screen appears, acknowledging reset has occurred). 4. To return to the “TEST/MAINT” top-level menu screen, press ESC or ENTER key . Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 69: Relay Overfeed Timer Feature

    A relay overfeed timer can, and often will, interact with other 7.5 Interactions with Other analyzer functions while those functions are in use. Table C Analyzer Functions on the next page explains common overfeed timer interac- tions. Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 70: Table C Relay Overfeed Timer Interactions With Other Analyzer Functions

    (or a value you simulate) On relay is turned “off” Overfeed timer causes the relay to turn off. by simulation value was timed out Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 71: Hart Option

    Telephone: [512] 794-0369 Fax: [512] 794-8893 Website: www.hartcomm.org For information on the HART Communicator Model 275, contact: Fisher-Rosemount Systems 12000 Portland Avenue South Burnsville, Minnesota 55337-1535 USA Headquarters: [612] 895-2000 Service: [800] 654-7768 Fax: [612] 895-2244 Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 72: Analyzer Operating Modes For Hart Network

    IBM-compatible computer with HART-capable software (or software including GLI Device Specific Command sets). The GLI analyzer never initiates a command sequence, but always responds to commands from the master. Up to two master devices may be Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 73: Single Mode (Point-To-Point) Wiring Arrangement

    Refer to Wiring Arrangement Figure 3-3 and connect all devices, including up to two masters, to the 4-20 mA analog Output 1 signal. FIGURE 3-3 HART SINGLE MODE (Point-to-Point) Wiring Arrangement (for single analyzer) Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 74: Multi-Drop Wiring Arrangement

    Output 1 signal, matching polarity as shown. 4. Connect up to two masters to the 4-20 mA analog Out- put 1 signal cable. FIGURE 3-4 HART MULTI-DROP Wiring Arrangement (for multiple analyzer network) Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 75: Hart Preferences Setup

    Viewing Number of ber of preambles required by the analyzer from the master. Required Preambles 1. With the “GLI SETUP” top-level menu screen dis- played, select the “HART INFO” line and press key . Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 76: Device Preferences Setup

    Viewing The “Model” information screen shows the model number of Model Number the analyzer. 1. With the “GLI SETUP” top-level menu screen dis- key . played, select “DEVICE INFO” line and press Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 77: Viewing Manufacturer

    4. Press the F4 key to enter the tag, and the F2 key to send the tag to the analyzer. Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 78: Assigning A Descriptor

    1. With the “GLI SETUP” top-level menu screen dis- played, select “DEVICE INFO” line and press key . 2. With the “DEVICE INFO” submenu screen displayed, key to display its select the “Date” line and press the related information screen. Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 79: Viewing Identification (Id)

    3. With the “DEVICE REVISION” sub-submenu screen displayed, select the appropriate line and press the key to display its related information screen. 4. Press the F4 key to return to the “DEVICE INFO” sub- menu screen. Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 80: Master Reset" Function

    HART protocol can be used for limited operability. The Device Specific Command set for all ming existing GLI analyzers is available on request for creating a full-featured HART-capable program to run on an IBM- compatible PC. Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 81: Part F O U R - S E R V I C E A N D M A I N T E N A N C E

    -- not a slot and guide rib. 4. Wipe the inside surface of the flow chamber with a soft, clean, damp cloth. FIGURE 4-1 Standard Design Sensor -- Component Details Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 82: Cleaning Optional Cal-Cube

    DO NOT WIPE THE GLASS CUBE WITH TISSUES OR PAPER TOWELS. SMALL WOOD FIBERS FOUND IN THESE PRODUCTS WILL SCRATCH THE GLASS SURFACE OF THE CUBE WHICH MAY CHANGE ITS CERTIFIED VALUE. FIGURE 4-2 High Pressure Design Sensor -- Component Details Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 83: Replacing Sensor Light Source Or Detector

    2. Replace the black retainer clip to secure the new light source or detector. 3. Refer to Figure 4-3 and connect its wires, by color, to the sensor terminal board. Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 84: Re-Calibrating Measurement System

    Figure 4-3 Turbidity Sensor Terminal Block Designations Re-calibrating After replacing any light source(s) or detector(s), always Measurement re-calibrate the measurement system using the appropriate System method. Refer to Part Three, Section 5 for details. Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 85: Replacing Fuse(S)

    If an interconnect Sensor Cable cable is used, check the junction box, then disconnect the cable at both ends (sensor and analyzer) and, using an ohmmeter, check its wires for continuity and internal shorts. Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 86: Preserving Measurement Accuracy

    Bubbles remain in solution when the vent is closed, or are vented off when it is opened.) Periodically, it is recommended to remove the bubble trap drain plug to allow any accumulated sediment sludge to drain. Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 87: Keeping Sensor Flow Chamber Clean

    PART FOUR - SERVICE AND MAINTENANCE SECTION 2 - PRESERVING MEASUREMENT ACCURACY 2.2 Keeping Flow The Accu4™ Low-range Turbidimeter System has reactive diagnostics to alert you when the sensor flow chamber Chamber Clean needs cleaning. When an abnormal system diagnostic con- dition has been detected, the MEASURE screen will flash the “WARNING CHECK STATUS”...

  • Page 88: Troubleshooting

    TIMEOUT..Relay is de-energized. The overfeed timer has timed out and must be manually reset (control relay only). COUNTING ..Relay is energized. The overfeed timer is counting down, but has not yet timed out (control relay only). Accu4™ Low-range Turbidimeter System Rev. 2-300...

  • Page 89: Checking Electrical Connections

    Successfully calibrating the system usually confirms that the analyzer and sensor are operating properly. If the sensor cable is suspected, disconnect it at both ends (sensor and analyzer) and, using an ohmmeter, check its wires for conti- nuity and internal shorts. Rev. 2-300 Accu4™ Low-range Turbidimeter System...

  • Page 90: Analyzer Repair/Return

    (Recommendation: Use the original GLI shipping carton or an equivalent.) Also, GLI will not accept analyzers or sensors re- turned for repair or replacement unless they are thoroughly cleaned and all process material is re- moved. Accu4™ Low-range Turbidimeter System Rev. 2-300...
  • Page 91 (includes O-ring set and integral cable) ....8220G1330-104 O-Ring for LED Light Source or Detector Module..5H1251 Spare Silicone Lubricant ..........6M0920 Optional Cal-Cube Assembly (for standard and high pressure design sensors) ..8220G1300 Rev. 2-300 Accu4™ Low-range Turbidimeter System...

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