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ATI Technologies Q46P Скачать руководство пользователя страница 49

ATI

Q46P pH System

Part 6 – Calibration

49

O&M Manual
Rev-F (8/17)

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.    Therefore,  the  relay  energizes
and  the  LCD  indicator  illuminates  when  the  pH  value

exceeds

the

setpoint. When the phase is LO, the relay energizes and the LCD
indicator illuminates when the pH level drops

below

the setpoint. The

failsafe setting does have  an impact on this logic.  The description here
assumes the failsafe setting is OFF.  Press ENTER to initiate user entry
mode,  and  the  entire  value  will  flash.    Use  the  UP  arrow  key  to  modify
the  desired  value;  selections  include

HI

for direct operation or

LO

for

reverse operation. Press ENTER to store the new value.

See Figure 33 below for a visual description of a typical control relay application.

Figure 33 - Control Relay Example, Hysteresis and Opposite Phase

If Relay A Mode is set to Alarm Mode,

AL

, then the following settings will

appear in the Config Menu list automatically.  In this mode, two setpoints
can be selected on the same relay, to create an alarm band.  Phase HI
selection  causes  the  relay  to  energize  outside  of  the  band,  and  Phase
LO causes the relay to energize inside of the band.  This feature enables
one relay to be used as a control relay while the other is used as a HI-LO
Alarm  relay  at  the  same  time.    Setpoint  A-LO  must  be  set  lower  than
Setpoint  A-HI.    When  AL  mode  is  first  selected,  Setpoint  A-LO  is
defaulted to 0.

Figure 34 is a visual description of a typical alarm relay application.

When value rises to

≥

9.00 pH, relay closes.

When value falls to

≤

8.95 pH, relay opens.

*Setpnt A-HI

*Hyst A-HI

*Delay A-HI

*Setpnt A-LO

*Hyst A-LO

*Delay A-LO

Setpoint: 9.00 pH
Hyst:

0.05

Delay:

000

Failsafe: OFF

When value rises to

≥

9.05 pH, relay opens.

When value falls to

≤

9.00 pH, relay closes.

9.00 pH

PHASE: HI

ON

HYSTERESIS

OR

“DEADBAND”

X

OFF

8.95 pH

9.05 pH

PHASE: LO

HYSTERESIS

OR

“DEADBAND”

X

ON

9.00 pH

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Содержание Q46P

Страница 1: ...c 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 610 917...

Страница 2: ...ection 32 4 8 Combination Electrode Connection 33 4 9 External Preamplifier 35 PART 5 CONFIGURATION 36 5 1 User Interface 36 5 11 Keys 37 5 12 Display 37 5 2 Software 38 5 21 Software Navigation 39 5...

Страница 3: ...17 Q46 CONNECTIONS 25 FIGURE 18 Q46 RELAY CONNECTIONS 26 FIGURE 19 OPTIONAL RELAY BOARD WIRING 27 FIGURE 20 OPTIONAL ANALOG OUTPUT WIRING 27 FIGURE 21 CABLE DESCRIPTION MODEL Q25P 28 FIGURE 22 DETACHA...

Страница 4: ...24 VDC unit Both versions provide two 4 20 mA analog outputs and 3 SPDT relays One analog output may be configured for PID control and one of the relays may be configured to provide a remote trouble...

Страница 5: ...ed as loop power analyzer or as one of the two outputs on the AC powered instrument PID includes manual operation feature and diagnostic stuck controller timer feature for alarm output of control prob...

Страница 6: ...n the dark Keypad 4 key membrane type polycarbonate Ambient Temperature Service 20 to 60 C 4 to 140 F Storage 30 to 70 C 22 to 158 F Ambient Humidity 0 to 95 indoor outdoor use non condensing Altitude...

Страница 7: ...ft Span or zero 0 02 of span C Max Sensor Instrument 3 000 ft 914 meters w preamp Distance 30 ft 9 1 meters w o preamp Sensor Types Model Q25P pH w preamp 5 wire input or combination style pH electrod...

Страница 8: ...etted Materials PEEK ceramic titanium glass Viton EDPM optional 316 stainless steel body Temperature Compensation Pt1000 RTD Sensor Cable 6 Conductor 5 are used plus 2 shields 15 feet 4 6 meters stand...

Страница 9: ...s to restore full functionality Hydrofluoric acid HF will dissolve conventional glass electrodes For applications involving hydrofluoric acid a pH sensor with antimony electrode is recommended NOTE Th...

Страница 10: ...ons can be used during the calibration process To take full advantage of the high contrast display mount the instrument in a location where the display can be viewed from various angles and long dista...

Страница 11: ...the wall using the four outer mounting holes in the bracket These holes are slotted to accommodate two sizes of u bolt that may be used to pipe mount the unit Slots will accommodate u bolts designed f...

Страница 12: ...I Q46P pH System Part 2 Mounting 12 O M Manual Rev F 8 17 Figure 3 Wall Mounting Diagram Figure 4 Pipe Mounting Diagram Note Analyzer shown with optional Profibus Connector mounted to side of enclosur...

Страница 13: ...sure 4 screws for attachment of this bracket and a sealing gasket to insure that the panel mounted monitor provides a water tight seal when mounted to a panel The sealing gasket must first be attached...

Страница 14: ...ions as shown in Figure 6 The convertible style is the most common and can be used for either flow through or submersion applications A convertible sensor with a quick disconnect receptacle is availab...

Страница 15: ...fitting that accommodates the pipe thread on the front of the sensor Sample must flow directly against the face of the sensor as shown The sensor may be mounted horizontally provided that the outlet...

Страница 16: ...rangement allows connection of the sensor to pipe sizes up to 2 inches using adapters if necessary while allowing easy removal without twisting sensor wires Contact ATI for part numbers and prices for...

Страница 17: ...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 This assembly i...

Страница 18: ...rtion 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...

Страница 19: ...ATI Q46P pH System Part 3 Sensor Flowcell Mounting 19 O M Manual Rev F 8 17 Figure 11 CPVC Sensor Insertion Mount...

Страница 20: ...ndard items and can assist with the selection of special sensors should the need arise Figure 12 below show the dimensions of two pH sensors frequently used with the Q46P The 63 0013 sensor is suitabl...

Страница 21: ...low should be controlled to 300 800 cc min When using this flowcell for pH measurement put the flow control valve AFTER the flowcell This will maintain sample pressure through the flowcell and avoid d...

Страница 22: ...or Flowcell Mounting 22 O M Manual Rev F 8 17 3 62 Flow Tee Adapter When using the 63 0013 sensor in a flow application a 1 or pipe tee adapter is required Figure 15 shows a detail of that arrangement...

Страница 23: ...on 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...

Страница 24: ...tained in this operating manual Observe the analyzer s technical specifications and input ratings Proper electrical disconnection means must be provided prior to the electrical power connected to this...

Страница 25: ...nt section of the enclosure This cable may be unplugged from the front section of the monitor if service is needed but should normally be left in place during installation Figure 17 Q46 Connections Th...

Страница 26: ...r 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 Relay wiring is connected at TB4...

Страница 27: ...B2 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...

Страница 28: ...gnal lines Do not run sensor or signal cables in conduit that contains AC power lines or motor leads Standard convertible sensors insertion sensors and sanitary sensors have cable permanently attached...

Страница 29: ...Shielded Cable Model Q25P DANGER DO NOT connect sensor cable to power lines Serious injury may result Take care to route sensor cable away from AC power lines adjustable frequency drives motors or ot...

Страница 30: ...M Manual Rev F 8 17 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...

Страница 31: ...an be inserted and removed easily from the flowcell Cord grips used for sealing the cable should be snugly tightened after electrical connections have been made to prevent moisture incursion When stri...

Страница 32: ...round Connections move the Shield connection from P S board to alternate location on lid where indicated with an S Figure 25 Junction Box Interconnect Wiring Connecting sensor cable lengths can be up...

Страница 33: ...r 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 The maximum sensor to instrument cable length will be severely limited...

Страница 34: ...Green or Blue Pt100 Terminals 3 8 MUST be connected with a jumper wire For Other Combination Electrodes connect as follows Terminal 1 Glass Electrode 3 Reference Electrode 7 PT100 or PT1000 Temp Eleme...

Страница 35: ...ed in a NEMA 4X enclosure and must be located within 25 ft of the pH sensor It is critical that any conduit entry installed in this enclosure be completely sealed Moisture entering the enclosure throu...

Страница 36: ...from this user interface no internal jumpers pots etc Figure 29 User Interface MENU ICONS UNITS 12 CHARACTER SECONDARY DISPLAY MEMBRANE KEYPAD MENU ESC ENTER A B DIAG FAIL HOLD CAL CONF MENU ICONS UN...

Страница 37: ...Display The large custom display provides clear information for general measurement use and user configuration There are three main areas of the display the main parameter display the secondary messag...

Страница 38: ...case the output is locked to the last input value measured when the HOLD function was entered HOLD values are retained even if the unit power is cycled FAIL The FAIL icon indicates that the system dia...

Страница 39: ...essing ENTER again stores the variable and stops the flashing Pressing ESC aborts the change and also exits user entry mode The starting default screen is always the Measure Menu The UP arrow key is u...

Страница 40: ...3 4 Setpnt A or A HI A LO 4 Hyst A or A HI A LO 4 Delay A or A HI A LO Phase A Setpnt B Hyst B Delay B Phase B 6 Setpnt C 6 Hyst C 6 Delay C 6 Phase C 3 Setpnt D 3 Hyst D 3 Delay D 3 Phase D 3 Setpnt...

Страница 41: ...rent on the right The controller can be placed in manual while viewing this screen by pressing and holding the ENTER key for 5 seconds until a small flashing m appears on the screen At that point the...

Страница 42: ...orized tampering with instrument settings All settings may be viewed while the instrument is locked but they cannot be modified The Entry Lock feature is a toggle type setting that is entering the cor...

Страница 43: ...ill flash Use the UP arrow key to modify the desired value selections include 1 Modb for Modbus 2 P DP for Profibus DP Press ENTER to store the new value Com Address Sets bus address for digital commu...

Страница 44: ...auto recognition function Press ENTER to change this setting The buffer table set options are 1 4 7 10 2 4 7 9 18 and 3 4 65 6 79 9 23 See Figure 32 for buffer tables Once the buffer set is selected...

Страница 45: ...e OPTIONAL This function sets analog output 3 for temperature or pH Press ENTER to initiate user entry mode and the entire value will flash Use the UP arrow key to modify the desired value selections...

Страница 46: ...g system that keeps the sensor operating properly This relay should normally be set to CLn1 1 Mode for normal cleaning Do not change the factory setting for this relay without first consulting ATI or...

Страница 47: ...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 Then use the UP and LEFT arrow keys to select the desire...

Страница 48: ...ew value Set 4 mA 3 OPTIONAL These functions set the optional third 4 mA and 20 mA Set 20 mA 3 current loop output points for the transmitter The output may be set to temp pH track temperature default...

Страница 49: ...elay application Figure 33 Control Relay Example Hysteresis and Opposite Phase If Relay A Mode is set to Alarm Mode AL then the following settings will appear in the Config Menu list automatically In...

Страница 50: ...released from their hold state Using this feature properly avoids disturbing any instruments connected to the outputs during the cleaning cycle where D O readings can fluctuate Note The sensor wash ti...

Страница 51: ...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 Press ENTER to initiate user entry mode and enti...

Страница 52: ...e of value is 0 9999 seconds Press ENTER to store the new value Sim Out The Sim Out function allows the user to simulate the pH level of the instrument in the user selected display range The user ente...

Страница 53: ...urrent loop output to drop outside the normal operating range to exactly 6 5 mA indicating a system failure that requires attention Press ENTER to initiate user entry mode and the entire value will fl...

Страница 54: ...d also cause the same contacts to open Start Delay This function is designed to minimize control or alarm issues arising from temporary power loss When power goes down the monitor records the analog o...

Страница 55: ...are significantly different See Sections 6 13 and 6 14 for a brief description of their uses 6 11 Sensor Slope The sensor slope is a number expressed as a percentage which represents the current cond...

Страница 56: ...ration method between more involved 2 point calibrations For example a user may choose to perform on line 1 point calibrations weekly and 2 point calibrations monthly 6 2 Performing a 2 Point Calibrat...

Страница 57: ...nd buffer At this point rinse sensor with water and move the sensor into the second buffer solution Allow temperature to stabilize and then press ENTER 10 The present pH value will be displayed and th...

Страница 58: ...calibration Using the UP arrow key set for a 1 point calibration and press ENTER 5 The system now begins acquiring data for the calibration value As data is gathered the units for pH and temperature...

Страница 59: ...y The message Place sensor in solution then press ENTER will be displayed Move the sensor into the calibration reference if it hasn t been moved already and wait for temperature equilibrium to be achi...

Страница 60: ...eep the process at the setpoint To affect this control the controller must be used with properly selected control elements valves proper chemicals etc that enable the controller to add or subtract che...

Страница 61: ...the input error to zero providing accuracy to the control loop It must be used to affect the accuracy in the servo action of the controller Like proportional gain increasing integral gain results in...

Страница 62: ...ll indicate XX X XX X mA with the X values simply indicating the current values With this display on the screen press and hold the ENTER key for about 5 seconds You will see a small m show up between...

Страница 63: ...treme ranges of the measuring scale In addition if a chemical process is not symmetrical that means it responds differentially to the addition and subtraction of chemical It is important in these appl...

Страница 64: ...d from the end of the sensor prior to submersion If the sensor has been left to dry out allow sensor to be submerged in buffer or water to re hydrate for at least 4 hours The saltbridge may need repla...

Страница 65: ...nd pH readings to fully stabilize check for correct buffer values Slope LOW Sensor slope from calibration is less than 80 Clean sensor get fresh cal solutions allow temperature and pH readings to full...

Страница 66: ...or temperature element if necessary Temp Low The temperature reading is 10 C The temperature reading is under operating limits Check wiring and expected temp level Perform RTD test as described in sen...

Страница 67: ...isplay driver fail System failure consult factory mV Cal Fail Failure of factory temperature calibration Consult factory 8 4 Cleaning the Sensor Keep the sensor as clean as possible for optimum measur...

Страница 68: ...NOT use pliers 2 Pour out the old reference buffer by inverting the sensor process electrode pointing down If the reference buffer does not run out gently shake or tap the sensor 3 Rinse the reference...

Страница 69: ...he following test A multimeter 7 pH buffer and another buffer at least 2 pH units away will be needed 1 With transmitter power on and sensor connected place the multimeter s positive lead on the white...

Страница 70: ...s in Step 5 rinse the sensor with clean water and place it in the second buffer Allow the temperatures to equilibrate as before Now measure the sensor span reading Use the following table to determine...

Страница 71: ...block plug 3 position power 38 0084 Terminal block plug 3 position power VDC version NOTE prior to Dec 2018 VDC power Terminal block used the 38 0081 23 0029 Fuse 630mA 250V TR 5 for AC and DC Analyze...

Страница 72: ...le length 07 0092 Q25P2 6Ag pH Sensor Ag AgCl Ref with connector 07 0149 Q25P2 1 2Ag pH Sensor 30 ft cable AgCl Ref 05 0060 Saltbridge replacement for P1 Sensors 05 0066 Saltbridge replacement for P2...

Страница 73: ...exposure to excessive gas concentrations Should inspection indicate that sensors have been expended rather than failed prematurely the warranty shall not apply The Manufacturer assumes no liability f...

Страница 74: ...DUCTS NH3 Ammonia CO Carbon Monoxide H2 Hydrogen NO Nitric Oxide O2 Oxygen CO Cl2 Phosgene Br2 Bromine Cl2 Chlorine ClO2 Chlorine Dioxide F2 Fluorine I2 Iodine HX Acid Gases C2H4O Ethylene Oxide C2H6O...

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