ATI Technologies Q46H/65 O & M Manual
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ATI Technologies Q46H/65 O & M Manual

Chlorine dioxide monitor
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Chlorine Dioxide Monitor
Home Office
Analytical Technology, Inc.
6 Iron Bridge Drive
Collegeville, PA 19426
Phone: 800-959-0299
610-917-0991
Fax:
610-917-0992
Email: sales@analyticaltechnology.com
O & M Manual
Model Q46H-65
European Office
ATI (UK) Limited
Unit 1 & 2 Gatehead Business Park
Delph New Road, Delph
Saddleworth OL3 5DE
Phone: +44 (0)1457-873-318
Fax:
+ 44 (0)1457-874-468
Email: sales@atiuk.com

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  • Page 1 O & M Manual Model Q46H-65 Chlorine Dioxide Monitor Home Office European Office Analytical Technology, Inc. ATI (UK) Limited 6 Iron Bridge Drive Unit 1 & 2 Gatehead Business Park Collegeville, PA 19426 Delph New Road, Delph Phone: 800-959-0299 Saddleworth OL3 5DE 610-917-0991 Phone: +44 (0)1457-873-318 Fax:...

  • Page 2: Table Of Contents

    [DIAG] ......45 IAGNOSTICS 1.2 S ..........5 TANDARD YSTEM 1.3 F ............8 PART 7 – CALIBRATION ........... 49 EATURES 1.4 Q46H/65 S ....... 9 YSTEM PECIFICATIONS 7.1 C ......49 HLORINE IOXIDE ALIBRATION 1.5 Q46H P ....10...
  • Page 3 ABLE OF IGURES 1 - T ................5 IGURE YPICAL HLORINE IOXIDE ONITORING YSTEM 2 – C ..........6 IGURE HLORINE IOXIDE YSTEM W ONVENTIONAL P TYLE ENSOR 3 - S ..............7 IGURE EALED LOWCELL SSEMBLIES WITH ONTROL 4 - Q46 E ......................

  • Page 4: Part 1 - Introduction

    4-20 mA current output, additional 0-30V signal relays, PID control, and digital communication cards. In addition to chlorine dioxide measurement, the Q46H/65 is also available with an optional pH input which provides a two-parameter monitoring system.

  • Page 5: Standard System

    Q46H/65 Residual Chlorine Dioxide System Part 1 - Introduction Standard System The standard model Q46H/65 system includes three main components, the Q46H analyzer, a constant head flow cell, and a ClO sensor. A sealed flowcell is also available for applications where sample flow rate and pressure can be carefully controlled.

  • Page 6: Figure 2 - Chlorine Dioxides

    Q46H/65 Residual Chlorine Dioxide System Part 1 - Introduction Figure 2 below shows the same standard flowcell assembly and ClO sensor along with the conventional type pH sensor. A special adapter is required to hold the pH sensor in its proper location in the flowcell inlet chamber.

  • Page 7: Figure 3 - Sealed Flowcella

    Q46H/65 Residual Chlorine Dioxide System Part 1 - Introduction Figure 3 below shows an installation using a 00-1522 sealed flowcell for the ClO sensor and a 00-1527 sealed flowcell for the pH sensor. This type of installation requires careful flow control. We recommend the use of our 03-0372 flow control assembly when using sealed flowcells.

  • Page 8: Features

    Q46H/65 Residual Chlorine Dioxide System Part 1 - Introduction Features  Standard Q46H analyzers have fully isolated inputs and outputs. Analog outputs are additionally completely isolated from each other.  Available in either 90-260VAC or 12-24 VDC power supply systems. All features remain the same in both variations.

  • Page 9: Q46H/65 System Specifications

    Q46H/65 Residual Chlorine Dioxide System Part 1 - Introduction Q46H/65 System Specifications Displayed Parameters Main input, 0.1 ppb (0.0001 ppm) to 200.0 ppm Sensor temperature, -5.0 to 55.0 °C (23 to 131 ºF) Sensor Current, 0.0–999.9 nA, 0.000 to 99.99 uA Loop current, 4.00 to 20.00 mA...

  • Page 10: Q46H Performance

    Q46H/65 Residual Chlorine Dioxide System Part 1 - Introduction Max. Sensor-to-Analyzer 100 feet (30.5 meters), with junction box Distance Optional pH Input Accepts standard combination or Q22P pH Sensors Flow Cell Constant head overflow, clear cast acrylic, 7-30 GPH, 15 GPH recommended, inlet is ¼”...
  • Page 11 Q46H/65 Residual Chlorine Dioxide System Part 1 - Introduction Equipment bearing this marking may not be discarded by traditional methods in the European community after August 12 2005 per EU Directive 2002/96/EC. End users must return old equipment to the manufacturer for proper disposal.

  • Page 12: Part 2 - Analyzer Mounting

    Part 2 – Analyzer Mounting General All Q46 Series instruments offer maximum mounting flexibility. A bracket is included with each unit that allows mounting to walls or pipes. In all cases, choose a location that is readily accessible for calibrations. Also consider that it may be necessary to utilize a location where solutions can be used during the calibration process.

  • Page 13: Wall Or Pipe Mount

    Part 2 – Analyzer Mounting Q46H/65 Residual Chlorine Dioxide System Wall or Pipe Mount A PVC mounting bracket with attachment screws is supplied with each analyzer (see Figure 5for dimensions). The multi-purpose bracket is attached to the rear of the enclosure using the four flat head screws.

  • Page 14: Figure 6 - Wall Mountingd

    Part 2 – Analyzer Mounting Q46H/65 Residual Chlorine Dioxide System Figure 6 - Wall Mounting Diagram Figure 7 - Pipe Mounting Diagram O&M Manual Rev-J (11/18)

  • Page 15: Panel Mounting

    Part 2 – Analyzer Mounting Q46H/65 Residual Chlorine Dioxide System Panel Mounting Panel mounting uses the panel mounting flange molded into the rear section of the enclosure. Figure 8provides dimensions for the panel cutout required for mounting. The panel mounting bracket kit must be ordered separately (part number 05-0094). This kit...

  • Page 16: Part 3 - Sensor/Flowcell Mounting

    Part 3 – Sensor/Flowcell Mounting General Select a location within the maximum sensor cable length for mounting of the sensor flow cell. Constant-Head Flowcell Dissolved ClO sensors are best used in a constant-head overflow chamber because variations in sample flow rate and pressure can cause unstable readings. When monitoring low concentrations (below 0.5 PPM), this method should always be used.

  • Page 17: Low-Volume Flowcell

    Part 3 – Sensor/Flowcell Mounting Q46H/6 Residual Chlorine Dioxide System Once mounted, inlet and drain connections must be made. The flow cell contains a ⅛" MNPT inlet connection and a ⅜" MNPT drain connection. Hose barbs for the inlet and drain connections are supplied with the flow cell for use with flexible tubing.

  • Page 18: Sealed Flowcell

    Part 3 – Sensor/Flowcell Mounting Q46H/6 Residual Chlorine Dioxide System Great care must be taken in using the low-volume flow cell. Passages are very small, so only very clean water may be put through this type of system. The suggested flow rate is 150-300 cc/min., but the flow rate must be maintained precisely.

  • Page 19: Figure 12 - Sealed P H Flowcell

    Part 3 – Sensor/Flowcell Mounting Q46H/6 Residual Chlorine Dioxide System Figure 12 - Sealed pH Flowcell Details O&M Manual Rev-J (11/18)

  • Page 20: Part 4 - Electrical Installation

    Part 4 – Electrical Installation General The Q46 is powered in one of two ways, depending on the version purchased. The 12-24VDC powered analyzer requires a customer supplied DC power supply. The 90-260VAC version requires line power. Please verify the type of unit before connecting any power. WARNING: Do not connect AC line power to the DC version.

  • Page 21: Power Connection

    Part 4 – Electrical Installation Q46H/65 Residual Chlorine Dioxide System Power Connection Verify the AC power supply requirement before installing. Also verify that power is fully disconnected before attempting to wire. Q46 systems are supplied with 5 cable gland fittings for sealing cable entries.

  • Page 22: Figure 14 - Optional Relayb

    Part 4 – Electrical Installation Q46H/65 Residual Chlorine Dioxide System The power strip, TB7, allows up to 12 AWG wire. A wire gauge of 16 AWG is recommended to allow for an easy pass-through into the ½” NPT ports when wiring.

  • Page 23: Figure 15 - Optional Relayb

    Part 4 – Electrical Installation Q46H/65 Residual Chlorine Dioxide System TB2, is used to connect to the optional 3-relay card (Figures 15) OR the optional third analog outputOut#3, (Figure 16). The Q46 can be configured for only one of these optional features, and the hardware for either option must be factory installed.

  • Page 24: Direct Sensor Connection

    Part 4 – Electrical Installation Q46H/65 Residual Chlorine Dioxide System Direct Sensor Connection The sensor cable can be routed into the enclosure through one of cord-grips supplied with the unit. Routing sensor wiring through conduit is only recommended if a junction box is to be used.

  • Page 25: Sensor Wiring

    Part 4 – Electrical Installation Q46H/65 Residual Chlorine Dioxide System Sensor Wiring The sensor cable can be quickly connected to the Q46 terminal strip by matching the wire colors on the cable to the color designations on the label in the monitor. A junction box is also available to provide a break point for long sensor cable runs.

  • Page 26: Junction Box Connection

    Part 4 – Electrical Installation Q46H/65 Residual Chlorine Dioxide System Junction Box Connection Installations where the sensor is to be located more than 25 feet from the monitor (max. 100 feet) require the use of a junction box. The junction box is shown in, and is supplied with two cable glands on the bottom of the enclosure.

  • Page 27: Optional Ph Input

    Part 4 – Electrical Installation Q46H/65 Residual Chlorine Dioxide System Optional pH Input The Q46H may be configured for pH measurement if desired. To utilize the feature, a pH sensor - Direct Sensor Connection must be connected to terminals 3 and 5 as shown Figure 18 .

  • Page 28: Figure 20 - Junction Boxw

    Part 4 – Electrical Installation Q46H/65 Residual Chlorine Dioxide System Note: The BLUE wire is NOT used when connecting a Flow Style Probe to the analyzer Figure 20 - Junction Box Wiring w/Optional pH Comp. O&M Manual Rev-J (11/18)

  • Page 29: Part 5 - Sensor Assembly

    Part 5 – Sensor Assembly Chlorine Dioxide Sensor Preparation The ClO sensor supplied with the Q46H is shipped dry. It will not operate until it is prepared by adding electrolyte and a membrane. Preparation of the sensor for operation must be done carefully.

  • Page 30: Chlorine Dioxide Sensorp

    Part 5 – Sensor Assembly Q46H/65 Residual Chlorine Dioxide System 6. Slowly screw the chamber onto the sensor body. A small amount of electrolyte will run out of the hole from which the vent screw was removed. Place a paper towel around the sensor to absorb the electrolyte overflow.

  • Page 31: Part 6 - Configuration

    Part 6 – Configuration User Interface The user interface for the Q46 Series instrument consists of a custom display and a membrane keypad. All functions are accessed from this user interface (no internal jumpers, pots, etc.). RELAY 4-DIGIT INDICATOR MAIN DISPLAY MENU ICONS MENU ICONS SIGN...

  • Page 32: Keys

    Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System 6.11 Keys All user configurations occur through the use of four membrane keys. These keys are used as follows: MENU/ESC To scroll through the menu section headers or to escape from anywhere in software.

  • Page 33: Software

    Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System Icon Area The icon area contains display icons that assist the user in set-up and indicate important states of system functions. The CAL, CONFIG, and DIAG icons are used to tell the user what branch of the software tree the user is in while scrolling through the menu items.

  • Page 34: Software Navigation

    Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System 6.21 Software Navigation Within the CAL, CONFIG, CONTROL, and DIAG menu sections is a list of selectable items. Once a menu section (such as CONFIG) has been selected with the MENU key, the user can access the item list in this section by pressing either the ENTER key or the UP arrow key.

  • Page 35: Figure 23 - Software Map

    Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System MENU MEASURE CONFIG CONTROL DIAG SECTIONS Temperature Entry Lock Cal Cl2 Set Hold PID 0% #1 PID 100% #1 Fault List Cal pH Set Delay PID % Output Sim Out PID Setpoint #1...

  • Page 36: [Measure]

    Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System 6.22 Measure Menu [MEASURE] The default menu for the system is the display-only menu MEASURE. This menu is a display-only measurement menu, and has no changeable list items. When left alone, the instrument will automatically return to this menu after approximately 30 minutes.

  • Page 37: [Cal]

    Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System Offset = X.X mV pH sensor current output at 7 pH input. This value updates after calibration is performed and is useful for resolving sensor problems. Note A display test (all segments ON) can be actuated by pressing and holding the ENTER key while viewing the model/version number on the lower line of the display.
  • Page 38 Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System Set Delay The delay function sets the amount of damping on the instrument. This function allows the user to apply a first order time delay function to the measurements being made. Both the display and the output value are affected by the degree of damping.
  • Page 39 Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System Iout#1 Mode This function sets analog output #1 to either track ClO (default) or enables the PID controller to operate on the ClO input. Press ENTER to initiate user entry mode, and the entire value will flash. Use the UP arrow key to modify the desired value;...
  • Page 40 Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System *Relay D Mode OPTIONAL. Relays D,E, and F can be used in two ways: as a setpoint *Relay E Mode control, or as an alarm. The two settings for Relay B Mode are CON and *Relay F Mode FAIL.

  • Page 41: Figure 24 - Automatic P H B

    Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System Table 1 Table 2 4.00 pH 7.00 pH 10.00 pH 4.00 pH 7.00 pH 9.18 pH ºC °C °C ºC °C °C 4.00 7.10 10.27 4.00 7.10 9.46 3.99 7.06 10.15 3.99...

  • Page 42: Control Menu

    Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System 6.25 Control Menu [CONTROL] The Control Menu contains all of the output control user settings: Set PID 0% If the PID is enabled, this function sets the minimum and maximum Set PID 100% controller end points.
  • Page 43 Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System Set 4 mA #1 These functions set the main 4 and 20 mA current loop #1 output points Set 20 mA #1 for the analyzer when output 1 is in normal, non-PID, mode of operation.

  • Page 44: Figure 25 - Control Relaye

    Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System A Delay This function places an additional amount of time delay on the trip point for relay A. This delay is in addition to the main delay setting for the controller. The entry value is limited to a value between 0 and 999 seconds.

  • Page 45: Diagnostics Menu

    Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System Figure 26 is a visual description of a typical alarm relay application. When value rises to ≥ 1.000 ppm, relay closes, When value falls to < 1.000 ppm, relay closes, until value falls back to < 0.950 ppm.
  • Page 46 Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System The transfer out of HOLD is bumpless on the both analog outputs - that is, the transfer occurs in a smooth manner rather than as an abrupt change. An icon on the display indicates the HOLD state, and the HOLD state is retained even if power is cycled.
  • Page 47 Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System SimOut The Sim Out function allows the user to simulate the ClO level of the instrument in the user selected display range. The user enters a ppm value directly onto the screen, and the output responds as if it were actually receiving the signal from the sensor.
  • Page 48 Part 6 – Configuration Q46H/65 Residual Chlorine Dioxide System Failsafe This function allows the user to set the optional system relays to a failsafe condition. In a failsafe condition, the relay logic is reversed so that the relay is electrically energized in a normal operating state. By doing this, the relay will not only change state when, for example, a ClO limit is exceeded, but also when power is lost to the controller.

  • Page 49: Part 7 - Calibration

    Part 7 – Calibration Chlorine Dioxide Calibration After power is applied, the sensor must be given time to stabilize. This is best done by following the zeroing procedure below. Establishing a stable zero is important to the proper operation of the monitor.

  • Page 50: Clo 2 Span Cal

    Part 8 – Calibration Q46H/65 Residual Chlorine Dioxide System carefully inspect the sensor for a tear in the membrane. It will probably be necessary to rebuild the sensor as described in section 5.4, ClO Sensor Assembly. Should the offset value remain high and result in calibration failures, review the Service section of this manual, and then contact the service dept.

  • Page 51: Temperature Calibration

    Part 8 – Calibration Q46H/65 Residual Chlorine Dioxide System 8. The screen will display the last measured ppm value and a message will be displayed prompting the user for the lab value. The user must then modify the screen value with the arrow keys and press ENTER.

  • Page 52: Ph Calibration

    Part 8 – Calibration Q46H/65 Residual Chlorine Dioxide System pH Calibration The pH calibration menus will not be seen unless the optional pH sensor input is turned ON and a Configuration Menu pH sensor is connected to the instrument. See section 6.24 [CONFIG] for more details.

  • Page 53: One-Point Ph Cal

    Part 8 – Calibration Q46H/65 Residual Chlorine Dioxide System 6. Press the ENTER key. The display will begin to flash. Using the UP and LEFT arrow keys, adjust the displayed number to the known value of the pH buffer. The exact temperature compensated number for pH buffers is typically written on the side of the buffers shipping container.

  • Page 54: Part 8 - Pid Controller Details

    Part 8 – PID Controller Details PID Description PID control, like many other control schemes, are used in chemical control to improve the efficiency of chemical addition or control. By properly tuning the control loop that controls chemical addition, only the amount of chemical that is truly required is added to the system, saving money.
  • Page 55 Part 8 – PID Controller Details Q46H/64 Dissolved Ozone System The most notable feature of the algorithm is the fact the proportional gain term affects all components directly (unlike some other algorithms - like the “series” form.) If a pre-existing controller utilizes the same form of the algorithm shown above, it is likely similar settings can for made if the units on the settings are exactly the same.

  • Page 56: Classical Pid Tuning

    Part 8 – PID Controller Details Q46H/64 Dissolved Ozone System If it appears that even large amounts of integral gain (>20) don’t appreciably increase the desired response, drop I back to about 1.0, and increase P by 1.00, and start increasing I again. In most chemical control schemes, I will be approximately 3 times the value of P.
  • Page 57 Part 8 – PID Controller Details Q46H/64 Dissolved Ozone System The easiest processes to control with closed-loop schemes are generally linear, and symmetrical, in nature. For example, controlling level in tank where the opening of valve for a fixed period of time corresponds linearly to the amount that flows into a tank.

  • Page 58: Part 9 - System Maintenance

    Part 9 – System Maintenance General The Q46H/65 Chlorine Dioxide System will generally provide unattended operation over long periods of time. With proper care, the system should continue to provide measurements indefinitely. For reliable operation, maintenance on the system must be done on a regular schedule.

  • Page 59: Sensor Acid Cleaning

    Part 10 – Troubleshooting Q46H/65 Residual Chlorine Dioxide System Sensor Acid Cleaning Over an extended operating period, ClO sensors can slowly accumulate deposits on the surface of the platinum electrode. Typically, this type of buildup occurs over years of operation, but can sometimes occur more quickly if high levels of manganese, iron, or other metals are dissolved in the water.

  • Page 60: Replacing The Uffer Solution

    Part 10 – Troubleshooting Q46H/65 Residual Chlorine Dioxide System Soak the sensor for several minutes in the soap solution. Use a small, extra-soft bristle brush (such as a mushroom brush) to thoroughly clean the electrode and saltbridge surfaces. If surface deposits are not completely removed after performing this step, use a dilute acid to dissolve the deposits.

  • Page 61: Flow Cell Maintenance

    Part 10 – Troubleshooting Q46H/65 Residual Chlorine Dioxide System NOTE: Every ATI Q25P Sensor includes a spare bottle of Reference Buffer Solution, 7.0 pH. This is NOT typical pH 7 buffer, it is a special “high-capacity” buffer developed to ensure the highest possible stability of the reference portion of the pH measurement.

  • Page 62: Part 10 - Troubleshooting

    Part 10 – Troubleshooting 10.1 General The information included in this section is intended to be used in an attempt to quickly resolve an operational problem with the system. During any troubleshooting process, it will save the most time if the operator can first determine if the problem is related to the analyzer, sensor, or some external source.

  • Page 63: Analyzer Tests

    Part 10 – Troubleshooting Q46H/65 Residual Chlorine Dioxide System interference. This can be quickly resolved by moving wiring, or by adding very inexpensive snubbers (such As Quencharcs) to the load. 8. Carefully examine any junction box connections for loose wiring or bad wire stripping. If possible, connect the sensor directly to the analyzer for testing.
  • Page 64 Part 10 – Troubleshooting Q46H/65 Residual Chlorine Dioxide System Offset High The sensor zero offset point is out of the Check wiring connections to sensor. Allow acceptable range of -25 to +25nA. sensor to operate powered a minimum of 12 hours prior to first zero cal.

  • Page 65: Sensor Tests

    Part 10 – Troubleshooting Q46H/65 Residual Chlorine Dioxide System 10.5 Sensor Tests 1. Check the membrane condition. A membrane that is not stretched smoothly across the tip of the sensor will cause unstable measurements. If necessary, change membrane and electrolyte.

  • Page 66: Troubleshooting (Q22P Sensor)

    Part 10 – Troubleshooting Q46H/65 Residual Chlorine Dioxide System 3. Acid clean the sensor electrodes in accordance with the procedure on the previous page. 10.6 Troubleshooting (Q22P Sensor) The first step in resolving any measurement problem is to determine whether the trouble lies in the sensor or the transmitter.

  • Page 67: Spare Parts

    P/S Assy, 12-24 VDC with 3 4-20mA output 03-0412 P/S Assy, 12-24 VDC with 3 relay exp. Board 03-0385 Q46H/65 Front Lid Assembly 00-0066 Chlorine Dioxide sensor, flow type 02-0016 Sensing element body, (for #00-0066) Chlorine Dioxide sensor, submersion type with 25’ cable...
  • Page 68 Part 10 – Troubleshooting Q46H/65 Residual Chlorine Dioxide System Note : Instrument is supplied with sufficient spare parts for 6-12 months of operation. For 2 year spare parts inventory, 3 each of the items marked with an asterisk are required.
  • Page 69 PRODUCT WARRANTY Analytical Technology, Inc. (Manufacturer) warrants to the Customer that if any part(s) of the Manufacturer's equipment proves to be defective in materials or workmanship within the earlier of 18 months of the date of shipment or 12 months of the date of start-up, such defective parts will be repaired or replaced free of charge.
  • Page 70 WATER QUALITY MONITORS GAS DETECTION PRODUCTS Dissolved Oxygen Ammonia Carbon Monoxide Free Chlorine Hydrogen Combined Chlorine Nitric Oxide Total Chlorine Oxygen Residual Chlorine Dioxide Cl2 Phosgene Potassium Permanganate Bromine Chlorine Dissolved Ozone Chlorine Dioxide pH/ORP Fluorine Conductivity Iodine Hydrogen Peroxide Acid Gases Peracetic Acid O Ethylene Oxide...

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