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ATI Technologies Q45S/87 O & M Manual

Wet hydrogen sulfide monitor
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Wet Hydrogen Sulfide 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
Web: www.Analyticaltechnology.com
Fax: 610-917-0992
O & M Manual
Model Q45S/87
Fax:
+ 44 (0)1457-874-468
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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Summary of Contents for ATI Technologies Q45S/87

  • Page 1 O & M Manual Model Q45S/87 Wet Hydrogen Sulfide 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...

  • Page 2: Table Of Contents

    PART 6 – CALIBRATION ........37 General............4 Calibration ..........37 Features ............5 6.11 Zero Cal ..........37 Q45S/87 System Specifications ....6 6.12 Span Cal ..........38 Q45S/87 Performance Specifications ..7 Temperature Calibration ......39 PART 2 – ANALYZER / AIR PUMP PART 7 –...
  • Page 3 Table of Figures FIGURE 1 - WET H2S TYPICAL SYSTEM DIAGRAM ................4 FIGURE 2 - Q45 ENCLOSURE DIMENSIONS, AC POWER ..............9 FIGURE 3 - Q45 ENCLOSURE DIMENSIONS, BATTERY UNITS............10 FIGURE 4 - WALL OR PIPE MOUNT BRACKET..................11 FIGURE 5 - WALL MOUNTING DIAGRAM ....................

  • Page 4: Part 1 - Introduction

    Part 1 - Introduction General The Q45S/87 Wet H S Transmitter is a microcomputer-based instrument for monitoring the concentration of a hydrogen sulfide gas in wet scrubber outlet vents or scrubber inlet ducts saturated with water vapor. The system consists of three parts, a Monitor assembly containing an LCD display, analog outputs, and alarm functions;...

  • Page 5: Features

    S Monitoring System Features Standard Q45S/87 electronic transmitters are designed to be a fully isolated instrument for continuous operation from AC power. An optional battery powered version (without air-purge system) with an internal data logger is available for short term monitoring use.

  • Page 6: Q45S/87 System Specifications

    Part 1 – Introduction Q45S/87 Wet H S Monitoring System Q45S/87 System Specifications Displayed Parameters Main input, 0.1 ppm to 200.0 ppm Sensor Current, 0.0 to 999.9 nA, 0.000 to 99.99 uA Sensor Temperature Loop current, 4.00 to 20.00 mA...

  • Page 7: Q45S/87 Performance Specifications

    Part 1 – Introduction Q45S/87 Wet H S Monitoring System 90 – 130 VAC, 50/60 Hz Power 180 – 260 VAC, 50/60 Hz Enclosure, AC Powered NEMA 4X, IP66, polycarbonate, stainless steel hardware, weatherproof and corrosion resistant, HWD: 4.9" (124 mm) x 4.9" (124 mm) x 5.5" (139 mm) Mounting Options Wall or pipe mount bracket standard.
  • Page 8 Part 1 – Introduction Q45S/87 Wet H S Monitoring System Warm-up Time 3 seconds to rated performance (electronics only) Supply Voltage Effects ± 0.05% span Instrument Response Time 60 seconds to 90% of step input at lowest damping 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.

  • Page 9: Part 2 - Analyzer / Air Pump Mounting

    Part 2 – Analyzer / Air Pump Mounting General All Q45 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.

  • Page 10: Figure 3 - Q45 Enclosure Dimensions, Battery Units

    Part 2 – Analyzer/Air Pump Mounting Q45S/87 Wet H S Monitor System Figure 3 - Q45 Enclosure Dimensions, Battery Units O&M Manual Rev-L (1/20)

  • Page 11: Wall Or Pipe Mount

    Part 2 – Analyzer/Air Pump Mounting Q45S/87 Wet H S Monitor System Wall or Pipe Mount A PVC mounting bracket with attachment screws is supplied with each transmitter (see Figure 4 for dimensions). The multi-purpose bracket is attached to the rear of the enclosure using the four flat head screws.

  • Page 12: Figure 5 - Wall Mounting Diagram

    Part 2 – Analyzer/Air Pump Mounting Q45S/87 Wet H S Monitor System Figure 5 - Wall Mounting Diagram Figure 6 - Pipe Mounting Diagram O&M Manual Rev-L (1/20)

  • Page 13: Panel Mount, Ac Powered Monitor

    Part 2 – Analyzer/Air Pump Mounting Q45S/87 Wet H S Monitor System Panel Mount, AC Powered Monitor Panel mounting of an AC powered monitor uses the panel mounting flange molded into the rear section of the enclosure. Figure 7 provides dimensions for the panel cutout required for mounting.

  • Page 14: Air-Purge Pump Mounting

    25 ft. of tubing that should be cut to the desired length. A 5 ft. piece of 2 conductor cable is also supplied to interconnect the pump with the relay control in the Q45S/87 monitor. See Figure 8 for Junction Box dimensions. The junction box comes complete with mounting hardware for pipe or wall mounting identical to that used for the monitor enclosure.

  • Page 15: Part 3 - Sensor Mounting

    Part 3 – Sensor Mounting General Select a location for the sensor on the side of the scrubber inlet or outlet duct. Do not mount the sensor on the bottom of a horizontal duct section. If the duct is horizontal, mount the sensor at about 45-60 degrees off of vertical.

  • Page 16: Figure 10 - Duct Insertion Sensor Holder Exploded View

    Q45S/87 Wet H S Monitor System Part 3– Sensor Mounting Figure 10 shows an exploded view of the duct insertion assembly with the hydrogen sulfide sensor and cable assembly. To facilitate installation, disassemble the sensor system so that the front half of the holder can be screwed into the duct separately.

  • Page 17: Sensor Prefilter Membrane

    Q45S/87 Wet H S Monitor System Part 3– Sensor Mounting Sensor Prefilter Membrane On the front of the sensor holder is a membrane that serves as a sample prefilter to protect the sensor from deposits that could cause premature sensor failure. This membrane is held in place with a screw-on cap, and the membrane should be changed every 2 or 3 months to insure proper operation of the system.

  • Page 18: Part 4 - Electrical Installation

    Part 4 – Electrical Installation General The Q45 is powered from either 115 or 230 VAC, 50/60 cycle power. Please verify the type of unit before connecting any power. The power supply voltage is marked on the circuit board near the AC power connection terminals.

  • Page 19: Figure 11 - Line Power Connection

    Part 4 – Electrical Installation Q45S/87 Wet H S Monitoring System The analog outputs from the system are present at terminals TB1 and TB2. The loop-load limitation in this configuration is 500 Ohms maximum for each output. Also note that these two outputs are completely isolated from each other to insure that ground loops do not result from the connection of both outputs to the same device such as a PLC or DCS.

  • Page 20: Figure 12 - Pump Interconnect Connection

    Part 4 – Electrical Installation Q45S/87 Wet H S Monitoring System Figure 12 - Pump Interconnect Connection Two sets of SPDT relay contacts 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 Q45 (115 or 230 V), power may be jumpered from the power input terminals at TB5.

  • Page 21: Sensor Wiring

    Part 4 – Electrical Installation Q45S/87 Wet H S Monitoring System Sensor Wiring The sensor cable can be quickly connected to the Q45 terminal strip by matching the wire colors on the cable to the color designations on the label in the monitor. Route signal cable away from AC power lines, adjustable frequency drives, motors, or other noisy electrical signal lines.

  • Page 22: Figure 15 - Sensor Cable Preparation

    Part 4 – Electrical Installation Q45S/87 Wet H S Monitoring System Cord-grips used for sealing the cable should be snugly tightened after electrical connections have been made to prevent moisture incursion. When stripping cables, leave adequate length for connections in the transmitter enclosure as shown below. The standard 25 ft. sensor cable normally supplied with the system is already stripped and ready for wiring.

  • Page 23: Part 5 - Configuration

    Part 5 – Configuration User Interface The user interface for the Q45 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 24: 5.11 Keys

    Part 5 – Configuration Q45S/87 Wet H S Monitoring System 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 25: Software

    Part 5 – Configuration Q45S/87 Wet H S Monitoring 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 26: 5.21 Software Navigation

    Part 5 – Configuration Q45S/87 Wet H S Monitoring System 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 27: Figure 17 - Software Map

    Part 5 – Configuration Q45S/87 Wet H S Monitoring System Start MENU MENU MENU MENU MENU MENU MEASURE CONFIG CONTROL DIAG SECTIONS (display only) ENTER ENTER ENTER ENTER *PID 0% #1 Entry Lock Set Hold Temperature *PID 100% #1 Set Delay...

  • Page 28: Measure Menu [Measure]

    Part 5 – Configuration Q45S/87 Wet H S Monitoring System 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 29: Calibration Menu [Cal]

    Part 5 – Configuration Q45S/87 Wet H S Monitoring System 5.23 Calibration Menu [CAL] The calibration menu contains items for frequent calibration of user parameters. There are three items in this list: Cal Sulfide, Cal Temp. and Set Range. The sulfide calibration function allows the user to adjust the transmitter span reading to match a reference solution, or to set the sensor zero point.
  • Page 30 Part 5 – Configuration Q45S/87 Wet H S Monitoring System 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 31: Control Menu [Control]

    Part 5 – Configuration Q45S/87 Wet H S Monitoring System *Relay B Mode Relay B in the Q45S is used to activate the air-wash system meant to remove condensation from the sensor. This relay is set to CLn1 (factory default). Do not change the factory setting for this relay without first consulting ATI or your ATI representative.
  • Page 32 Part 5 – Configuration Q45S/87 Wet H S Monitoring System The entry value is limited to a value within the range specified in “Set Range”, and the 0% and the 100% point must be separated by at least 1% of this range Use the LEFT arrow key to select the first digit to be modified.

  • Page 33: Figure 18 - Control Relay Example

    Part 5 – Configuration Q45S/87 Wet H S Monitoring System This function establishes the hysteresis, or “deadband”, for Relay A. *A Hysteresis Hysteresis is most often used to control relay chattering; however, it may also be used in control schemes to separate the ON/OFF trip points of the relay.

  • Page 34: Diagnostics Menu [Diag]

    Part 5 – Configuration Q45S/87 Wet H S Monitoring System Figure 19 is a visual description of a typical alarm relay application. When value rises to ≥ 1.000 ppm, relay When value falls to < 1.000 ppm, relay closes, until value falls back to < 0.950 ppm.
  • Page 35 Part 5 – Configuration Q45S/87 Wet H S Monitoring System The Set Hold function can also hold at an output value specified by the user. To customize the hold value, first turn the HOLD function on. Press the ESC key to go to the DIAG Menu and scroll to Sim Output using the UP arrow key.
  • Page 36 Part 5 – Configuration Q45S/87 Wet H S Monitoring System Fail Out This function enables the user to define a specified value that the main current output will go to under fault conditions. When the Relay Option Board is installed, the display will read Fail Out #1. When enabled to ON, the output may be forced to the current value set in Fail Val (next item.) With the Fail Out setting of ON, and a Fail Val setting of 6.5 mA,...

  • Page 37: Part 6 - Calibration

    Part 6 – Calibration Calibration Once power is applied, the H S sensor must be given time to stabilize. This is best done by following the zeroing procedure below. Establishing a stable zero is critical to the proper operation of the monitor. A complete calibration will include zeroing and spanning the sensor. 6.11 Zero Cal Hydrogen Sulfide sensors have fairly low offset currents at zero.

  • Page 38: 6.12 Span Cal

    Part 6 – Calibration Q45S/87 Wet H S Monitoring System The sensor zero offset value in nA from the last zero calibration is displayed on the lower line of the Default Menus for information purposes. 6.12 Span Cal Span calibration is done using compressed gas hydrogen sulfide standards. These standards are available from ATI or from a variety of specialty gas suppliers.

  • Page 39: Temperature Calibration

    Part 6 – Calibration Q45S/87 Wet H S Monitoring System Temperature Calibration The temperature calibration sequence is essentially a 1-point offset 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.

  • Page 40: 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 41 Part 7 – PID Controller Details Q45H/86 Air-Stripping 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 42: Classical Pid Tuning

    Part 7 – PID Controller Details Q45H/86 Air-Stripping 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 43 Part 7 – PID Controller Details Q45H/86 Air-Stripping Dissolved Ozone System The easiest process’ 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 44: Part 8 - System Maintenance

    Part 8 – System Maintenance General The Q45S/87 Wet Hydrogen Sulfide 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 45: Part 9 - Troubleshooting

    Part 9 – Troubleshooting 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 46: Analyzer Tests

    Q45S/87 Wet H S Monitoring System Part 9 - Troubleshooting Analyzer Tests 1. Disconnect power and completely disconnect all output wiring coming from the analyzer. Remove sensor wiring, relay wiring, and analog output wiring. Re-apply power to the analyzer. 2. Using the Simulate feature, check operation of analog outputs and relays with a DMM.

  • Page 47: Figure 22 - Q45H Display Messages (Cont'd)

    Q45S/87 Wet H S Monitoring System Part 9 - Troubleshooting MESSAGE DESCRIPTION POSSIBLE CORRECTION Cal Fail Failure of sulfide calibration. FAIL icon will Clean sensor redo zero and span calibration. not extinguish until successful calibration If still failure, sensor slope may be less than has been performed, or 30 minutes passes 25% or greater than 300%.

  • Page 48: Spare Parts

    Spare Parts Part No. Description 03-0342-1 Q45S front lid assembly 07-0134 115 VAC powered monitor electronics assembly 07-0135 230 VAC powered monitor electronics assembly 07-0136 9 VDC battery powered monitor electronics assembly 07-0137 9 VDC Battery powered monitor electronics assembly w/data logger 01-0242 Power supply circuit board assembly (specify 115 or 230 VAC) 00-1410...
  • Page 49 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 50 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 Dissolved Ozone Chlorine Chlorine Dioxide pH/ORP Fluorine Conductivity Iodine Hydrogen Peroxide Acid Gases Peracetic Acid O Ethylene Oxide...

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