ATI Technologies Q46P O & M Manual
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ATI Technologies Q46P O & M Manual

Ph monitor
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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 Q46P
pH Monitor
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 Q46P pH 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...

  • Page 2: Table Of Contents

    General ............ 4 6.11 Sensor Slope ........55 Features ..........5 6.12 Sensor Offset ........55 Q46P System Specifications ....6 6.13 2-Point Calibration Explained ....56 1.4 Q46P Performance Specifications 6.14 1-Point Calibration Explained ....56 (Common to all variations) ......7 Performing a 2-Point Calibration ..
  • Page 3 Q25P ................... 28 IGURE ABLE ESCRIPTION ODEL 22 - D Q25P ..............29 IGURE ETACHABLE INGLE HIELDED ABLE ODEL 23 - Q46P S ....................30 IGURE ENSOR ONNECTIONS 24 - S ....................31 IGURE ENSOR ABLE REPARATION 25 - J ..................32...

  • Page 4: Part 1 - Introduction

    The Q46P is available with a few options to expand the capabilities of the monitor. Users may select either a third analog 4-20 mA output or an expansion card that provides three additional low voltage SPST relays.

  • Page 5: Features

    Part 1 – Introduction Features • Standard Q46P Analyzers have fully isolated inputs and outputs. Analog outputs are additionally completely isolated from each other. • Available in either 90-260 VAC or 12-24 VDC power supply systems. All features remain the same in both variations.

  • Page 6: Q46P System Specifications

    Q46P pH System Part 1 – Introduction Q46P System Specifications Displayed Parameters Main input, 0.00 to 14.00 pH Sensor temperature, -10.0 to 110.0 °C (14 to 230ºF) Loop current, 4.00 to 20.00 mA Sensor slope/offset Model number and software version...

  • Page 7: Q46P Performance Specifications (Common To All Variations)

    TC General – Q25P pH Sensor Model Q25P “differential” pH sensors are the most commonly used sensors with the Q46P monitor. The differential design utilizes a second glass measuring electrode contained in an internal buffer as the reference element. This eliminates the need for a silver/silver chloride reference used in conventional pH sensor designs.

  • Page 8: Sensor Features

    Q46P pH System Part 1 – Introduction Sensor Features • A high volume, dual junction saltbridge to maximize the in-service lifetime of the sensor. The annular junction provides a large surface area to minimize the chance of fouling. Large electrolyte volume and dual reference junctions minimize contamination. The saltbridge is replaceable.
  • Page 9 Q46P pH System Part 1 – Introduction 1.8 Important Sensor Notes • The glass electrode must be wetted at all times to ensure proper functionality. Q25P sensors are shipped with a fluid-filled cap over the electrode to enable immediate use (remove cap before installing, save for storage and shipping purposes).

  • Page 10: Part 2 - Analyzer Mounting

    Part 2 – Analyzer Mounting General All Q46 Series instruments provide for mounting flexibility. A bracket is included 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 11: Wall Or Pipe Mount

    Q46P pH System Part 2 – Mounting Wall or Pipe Mount A PVC mounting bracket with attachment screws is supplied with each transmitter. The multi- purpose bracket is attached to the rear of the enclosure using the four flat head screws. The instrument is then attached to the wall using the four outer mounting holes in the bracket.

  • Page 12: Figure 3 - Wall Mountingd

    Q46P pH System Part 2 – Mounting Note: Analyzer shown with optional Profibus Connector mounted to side of enclosure. Figure 3 - Wall Mounting Diagram Figure 4 - Pipe Mounting Diagram O&M Manual Rev-F (8/17)

  • Page 13: Panel Mounting

    Q46P pH System Part 2 – Mounting Panel Mounting Panel mounting uses the panel mounting flange molded into the rear section of the enclosure. Figure 5 provides dimensions for the panel cutout required for mounting. The panel mounting bracket kit must be ordered separately (part number 05-0094). This kit...

  • Page 14: Part 3 - Sensor/Flowcell Mounting

    Part 3 – Sensor/Flowcell Mounting General The Q25P pH Sensor mounting options include flow-through, submersion, insertion (special hardware required), or sanitary mount depending on the type of sensor purchased. Q25P Differential pH Sensors are available in 4 different versions as shown in Figure 6. The convertible style is the most common and can be used for either flow-through or submersion applications.

  • Page 15: Flow Tee Mounting

    Q46P pH System Part 3 – Sensor/Flowcell Mounting Flow Tee Mounting Convertible sensors may be used in a 1” flow tee as shown in Figure 7. The flow tee is a modified pipe fitting that accommodates the pipe thread on the front of the sensor. Sample must flow directly against the face of the sensor as shown.

  • Page 16: Union Mounting

    Q46P pH System Part 3 – Sensor/Flowcell Mounting 3.3 Union Mounting For mounting the sensor in larger pipe and allowing for easy sensor removal, a 1 ½” or 2” union mount adapter system is available. This arrangement allows connection of the sensor to pipe sizes up to 2 inches (using adapters if necessary) while allowing easy removal without twisting sensor wires.

  • Page 17: Submersion Mounting

    Q46P pH System Part 3 – Sensor/Flowcell Mounting 3.4 Submersion Mounting When using this sensor for submersion applications, mount the sensor to the end of a 1” mounting pipe using a 1” coupling. ATI’s (00-0628) mounting assembly shown in Figure 9 is available for submersible applications.

  • Page 18: Insertion Mounting

    Q46P pH System Part 3 – Sensor/Flowcell Mounting 3.5 Insertion Mounting Special insertion mounting hardware is available for applications requiring the removal of the sensor from a process line or tank without shutting off the sample flow in the line. Figure 10 &...
  • Page 19 Q46P pH System Part 3 – Sensor/Flowcell Mounting Figure 11 - CPVC Sensor Insertion Mount O&M Manual Rev-F (8/17)

  • Page 20: Conventional Ph Sensors

    Figure 12 below show the dimensions of two pH sensors frequently used with the Q46P. The 63- 0013 sensor is suitable for use with either a pipe tee adapter or a special clear acrylic sealed flowcell.

  • Page 21: Sealed Flowcell

    Q46P pH System Part 3 – Sensor/Flowcell Mounting 3.61 Sealed Flowcell For applications where a flowcell is desired, a sealed flowcell (00-1527) shown in Figure 14 is available. This flowcell is used only with sensor (63-0005) or (63-0013) and may be used for sample pressures up to 75 PSIG.

  • Page 22: Flow Tee Adapter

    Q46P pH System Part 3 – Sensor/Flowcell Mounting 3.62 Flow Tee Adapter When using the 63-0013 sensor in a flow application, a 1” or ¾” pipe tee adapter is required. Figure 15 shows a detail of that arrangement. Figure 15 - Twist-Lock Flow Tee O&M Manual...

  • Page 23: Lock-N-Load System

    Q46P pH System Part 3 – Sensor/Flowcell Mounting Lock-n-Load System A special sensor/flowcell system is available that allows insertion and removal of a pH sensor under flow conditions. Called a Lock-n-Load system, this assembly uses a 2” flow tee and special sensor holder that retracts the sensor from a flowing sample for maintenance and cleaning.

  • Page 24: Part 4 - Electrical Installation

    Part 4 – Electrical Installation General The Q46 is powered in one of two ways, depending on the version purchased. The 12-24 VDC powered analyzer requires a customer supplied DC power supply. The 90-260 VAC 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 25 Q46P pH System Part 4 – Electrical Installation WARNING Disconnect line power voltage BEFORE connecting line power wires to Terminal TB7 of the power supply. The power supply accepts only standard three-wire single phase power. AC power supplies are configured for 90-260 VAC operation at the factory at time of order, and the power supply is labeled as such.

  • Page 26: Relay Connection

    Q46P pH System Part 4 – Electrical Installation Relay Connection Three SPDT relays are provided on the power supply board. None of the relay contacts are powered. The user must supply the proper power to the contacts. For applications that require the same switched operating voltage as the Q46 (115 or 230 V), power may be jumpered from the power input terminals at TB7.

  • Page 27: Optional Output Or Relay Connections

    Q46P pH System Part 4 – Electrical Installation Optional Output or Relay Connections TB2, is used to connect to the optional 3-relay card (Figure 19) OR the optional third analog output Out#3, (Figure 20). The Q46 can be configured for only one of these optional features, and the hardware for either option must be factory installed.

  • Page 28: Sensor Wiring

    Q46P pH System Part 4 – Electrical Installation 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 29: Figure 22 - Detachable Single

    Q46P pH System Part 4 – Electrical Installation RED - DRIVE ELECTRODE BLACK - COMMON (GROUND) GREEN - DRIVE ELECTRODE ORANGE - TEMPERATURE COMPENSATION WHITE - SENSE ELECTRODE BLUE - NOT USED CABLE SHIELD - EARTH GROUND Figure 22 - Detachable Single Shielded Cable, Model Q25P DANGER DO NOT connect sensor cable to power lines.
  • Page 30 NOTE: If sensor is experiencing Low-Slope or Low-Output conditions, due to poor Earth Ground Connections, move the Shield connection from P/S Board to alternate location on lid, where indicated with an “S” Figure 23 - Q46P Sensor Connections O&M Manual Rev-F (8/17)

  • Page 31: Direct Sensor Connection

    Q46P pH System Part 4 – Electrical Installation Direct Sensor Connection Sensor connections are made in accordance with Figure 23. 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. Some loose cable is needed near the installation point so that the sensor can be inserted and removed easily from the flowcell.

  • Page 32: Junction Box Connection

    Q46P pH System Part 4 – Electrical Installation Junction Box Connection For installations where the sensor is to be located more than 30 feet from the monitor (max. 3000 feet), junction must used. junction shown Figure , and is supplied with Pg 9 gland seals for sensor and interconnect wiring installation.

  • Page 33: Combination Electrode Connection

    Part 4 – Electrical Installation Combination Electrode Connection The Q46P may also be used with non-amplified simple combination electrodes (see Figure 26). Note that a wire jumper must be installed from Terminal 3 to Terminal 8. The user must also select Sensor Type 2 within the Config Menu (see Section 5.24).
  • Page 34 Q46P pH System Part 4 – Electrical Installation Flow pH Probe (63-0013) Submersible pH Probe (63-0009) Connect ATI sensors listed above as follows: Terminal 1 – Center clear (coax) 3 – Shield (coax) 7 – Red (Pt100) 8 – White and Green or Blue (Pt100) Terminals 3 &...

  • Page 35: External Preamplifier

    Moisture entering the enclosure through a conduit will cause failure of the amplifier circuit. Use of this preamp. allows the Q46P to be located up to 300 metres from the sensor/preamp. installation location. Wiring for that system is shown below.

  • Page 36: Part 5 - Configuration

    Part 5 – 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 37: Keys

    Q46P pH System Part 6 – Calibration 5.11 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 38: Software

    Relay C is normally configured for FAIL indication, so it is only displayed on the lower MEASURE display line. Software The software of the Q46P is organized in an easy to follow menu-based system. All user settings are organized under five menu sections: Measure, Calibration [CAL], Configuration [CONFIG], Control [CONTROL] and Diagnostics [DIAG].

  • Page 39: Software Navigation

    Q46P pH System Part 6 – Calibration 5.21 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 40: Figure 30 - Software Map

    Q46P pH System Part 6 – Calibration MENU MEASURE CONFIG CONTROL DIAG SECTIONS Temperature Entry Lock Cal pH Set Hold PID 0% #1 PID 100% #1 Fault List Set Delay Cal Temp PID % Output PID Setpoint #1 Sim Out...

  • Page 41: Measure Menu [Measure]

    Q46P pH System Part 6 – Calibration 5.22 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 42: Calibration Menu [Cal]

    Press ENTER to initiate user entry mode and the first digit will flash. Use arrow keys to modify value. See the last page of this manual for the Q46P lock/unlock code. Press ENTER to toggle lock setting once code is correct. Incorrect codes do not change state of lock condition.
  • Page 43 Q46P pH System Part 6 – Calibration The STN display provides the highest possible contrast and widest viewing angle under all conditions. Contrast control of this type of display is generally not necessary, so contrast control is provided as a means for possible adjustment due to aging at extreme ranges.

  • Page 44: Figure 31 - Automatic P H B

    This is a multiple variable function that allows the user to choose which pH buffer sets that will be utilized in the 2-point calibration mode. The Q46P contains 3 sets of built-in buffer tables with compensation values ranging from 0 to 95°C. During 2-point calibration, the instrument will automatically identify which buffer is being used and compensate for the value based on the built-in tables.

  • Page 45: Figure 32 - Automatic P H B

    Q46P pH System Part 6 – Calibration Table 3 4.65 pH 6.79 pH 9.23 pH ºC °C °C 4.67 6.89 9.48 4.66 6.84 9.37 4.65 6.80 9.27 4.65 6.78 9.18 4.66 6.76 9.09 4.68 6.76 9.00 4.70 6.76 8.92 4.72 6.76...
  • Page 46 Q46P pH System Part 6 – Calibration The FAIL setting enables the fail alarm mode for Relay A. Relay A will then trip on any condition that causes the FAIL icon to be displayed on the LCD. Using this mode allows the User to send alarm indications to other remote devices.

  • Page 47: Control Menu [Control]

    Q46P pH System Part 6 – Calibration Temp Units This function sets the display units for temperature measurement. Press ENTER to initiate user entry mode, and the entire value will flash. Use the UP arrow key to modify the desired display value. The choices are °F and °C.
  • Page 48 Q46P pH System Part 6 – Calibration process, and therefore, it is best in most cases to leave it at the default value. Increasing this value will make the controller more responsive. Set 4 mA These functions set the main 4 and 20 mA current loop #1 output points Set 20 mA for the analyzer when output 1 is in normal, non-PID, mode of operation.

  • Page 49: Figure 33 - Control Relaye

    Q46P pH System Part 6 – Calibration flash. Use arrow keys to modify value; range is 0 to 999 seconds. Press ENTER to store the new value. *A Phasing This function establishes the direction of the relay trip. When phase is HI, the relay operates in a direct mode.

  • Page 50: Figure 34 - Alarm Relay Example

    Q46P pH System Part 6 – Calibration When value rises to ≥ 9.00 pH, relay closes, When value falls to < 9.00 pH, relay closes, until value falls back to < 8.95 pH. until rises back to > 9.05 pH.

  • Page 51: Diagnostics Menu [Diag]

    Q46P pH System Part 6 – Calibration state” to allow a manual start (“T” is not flashing in the display.) After this forced cycle, the system will return to normal. If Relay C Mode is set to CON (see Relay C Mode), then Relay C will C Setpoint function identically to Relay A.
  • Page 52 Q46P pH System Part 6 – Calibration Faults are not stored and are immediately removed if power is cycled. If the problem causing the faults still exists, however, faults will be displayed again after power is re-applied and a period of time elapses during which the diagnostic system re-detects them.
  • Page 53 Q46P pH System Part 6 – Calibration be used with conventional pH sensors. It works only when using the Q25 differential pH sensors. PID Timer This function sets a timer to monitor the amount of time the PID controller remains at 0% or 100%. This function only appears if the PID controller is enabled.
  • Page 54 Q46P pH System Part 6 – Calibration *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 pH limit is exceeded, but also when power is lost to the controller.

  • Page 55: Part 6 - Calibration

    Part 6 – Calibration Overview and Methods Since the sensor slope (mV/pH output) will degrade over time, the instrument must be calibrated periodically to maintain a high degree of measurement accuracy. Frequency of calibration must be determined by the application. High temperature applications or applications involving extreme pH operating conditions may require more frequent calibration than those that operate at more neutral pH levels and ambient level temperatures.

  • Page 56: 2-Point Calibration Explained

    Q46P pH System Part 6 – Calibration greater than +90 mV or less than –90 mV. Sensor offset information from the most recent calibration can be viewed at any time in the Measure Menu (See Section 5.22). 6.13 2-Point Calibration Explained The 2-point calibration method involves the movement of the sensor through two known pH buffer values.

  • Page 57: Performing A 1-Point Calibration

    Q46P pH System Part 6 – Calibration The display will prompt the user to place the sensor in the first buffer and press ENTER. If the sensor has been placed into this buffer already, once the temperature has stabilized, press ENTER to continue.

  • Page 58: Temperature Calibration

    Q46P pH System Part 6 – Calibration calibration method, in which the actual calibration point will not be a buffer value. However, the sensor can be removed and calibrated in a separate buffer. During calibration, the system will display the current pH reading and the user can manually enter a reference value from a lab grab-sample or a comparative reference instrument.
  • Page 59 Q46P pH System Part 6 – Calibration calibration that allows adjustments of approximately ± 5°C. The sensor temperature may be calibrated on line, or the sensor can be removed from the process and placed into a known solution temperature reference. In any case, it is critical that the sensor be allowed to reach temperature equilibrium with the solution in order to provide the highest accuracy.

  • Page 60: Part 7 - Pid Controller Details

    Part 7 – 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 61 Q46P pH System Part 7– PID Controller 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 62: Classical Pid Tuning

    Q46P pH System Part 7– PID Controller 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 63 Q46P pH System Part 7– PID Controller 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. Chemical control process’ can be more problematic when the nature of the setpoint value is non-linear relative to the input of chemical added.

  • Page 64: Part 8 - Maintenance And Troubleshooting

    Part 8 – Maintenance and Troubleshooting System Checks If the FAIL icon is flashing on the display, check the Fault List to determine the cause of the failure. To access the Fault List, press the MENU/ESC key until the DIAG menu appears. Then press the UP arrow key until the Fault List appears.

  • Page 65: Display Messages

    Q46P pH System Part 8 – Maintenance and Troubleshooting Display Messages The Q45 Series instruments provide a number of diagnostic messages that indicate problems during normal operation and calibration. These messages appear as prompts on the secondary line of the display or as items on the Fault List as follows.
  • Page 66 Q46P pH System Part 8 – Maintenance and Troubleshooting The following messages will appear as items on the Fault List: MESSAGE DESCRIPTION POSSIBLE CORRECTION Sensor High The raw signal from the sensor is too Check wiring connections to sensor. high.

  • Page 67: Cleaning The Sensor

    Q46P pH System Part 8 – Maintenance and Troubleshooting MESSAGE DESCRIPTION POSSIBLE CORRECTION pH Cal Fail Failure of pH calibration. Clean sensor, get fresh cal solutions, regenerate sensor (if necessary) and redo calibration. If still failure, sensor slope may be less than 80% or offset may be out of range.

  • Page 68: Replacing The Saltbridge And Reference Buffer Solution

    Q46P pH System Part 8 – Maintenance and Troubleshooting NOTE: DO NOT soak the sensor in dilute acid solution for more than 5 minutes. This will help to prevent the acid from being absorbed into the saltbridge. ACIDS ARE HAZARDOUS.

  • Page 69: Troubleshooting

    Q46P pH System Part 8 – Maintenance and Troubleshooting Figure 36 - Replacing the Saltbridge and Reference Buffer 8.6 Troubleshooting The first step in resolving any measurement problem is to determine whether the trouble lies in the sensor or the transmitter. Since measurement problems can often be traced to dirty sensor electrode glass and/or saltbridge, cleaning the sensor using the method outlined in Section 8.4...
  • Page 70 Q46P pH System Part 8 – Maintenance and Troubleshooting RTD Ω ºC 1078 1097 1117 1136 Reconnect the yellow and white wires. Connect the multimeter’s positive (+) lead to the red wire and its negative (-) lead to the green wire.

  • Page 71: Spare Parts

    Part No. Description 07-0338 Q46P pH Monitor, 100-240 VAC 07-0339 Q46P pH monitor, 12-24 VDC 07-0340 Q46P pH monitor with Profibus, 100-240 VAC 07-0341 Q46P pH monitor with Profibus, 12-24 VDC 03-0397 Q46P Front Lid Assembly 03-0407 Q46 P/S Assy, 90-260VAC...
  • Page 72 Q25 pH Sensors & Sensor Parts 07-0050 Q25P1-1-1 pH Sensor, 15 ft. cable 07-0051 Q25P2-1-1 pH Sensor, 15 ft. cable 07-0062 Q25P1-1-2 pH Sensor, 30 ft. cable 07-0063 Q25P2-1-2 pH Sensor, 30 ft. cable 07-0052 Q25P3 Antimony pH Sensor, 15 ft. cable 07-0077 Q25P1-3-1 SS pH Sensor, 15 ft.
  • Page 73 PRODUCT WARRANTY Analytical Technology, Inc. (Manufacturer) warrants to the Customer that if any part(s) of the Manufacturer's products 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 74 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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