Emerson Rosemount 54eA Manual Download Page 42

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MODEL 54eA

SECTION 5.0

SOFTWARE CONFIGURATION

5.7 CHANGING ALARM PARAMETERS (continued)

Alarm setup for TPC alarms:

Move the cursor to the desired alarm setup and press Enter (F4).

b. Use

the

and

keys to move the cursor to the desired param-

eter. Press Edit (F4). Use the arrow keys to change the setting to
the desired value and press Save (F4) to store the value

Setpoint:

Setpoint is the usually the value to which the process

is to be controlled. The alarm will not be on much when the
process is at the setpoint value.

Proportional:

Proportional is the same as proportional band and

is the range over which control is being used. It is the opposite of
process gain. Smaller values provide tighter control.

Integral:

Integral is the number of seconds over which deviations

from the setpoint are integrated to remove continuing offsets.
Smaller values provide higher response.

Derivative:

Derivative is a form of control that resists all changes

in readings. Higher readings increase the derivative function. To
prevent process oscillation, use caution in setting the derivative
value.

Time period:

Time period is the cycle time for TPC control. One

cycle consists of an energized (relay on) time and a deenergized
(relay off) time.

URV:

URV is the deviation from the setpoint that results in the

alarm being on all the time.

LRV:

LRV is the deviation from the setpoint that results in the

alarm being off all the time. The LRV should be set to 0.00.

Setpoint

: 1.000 ppm

Proportional: 100.0%
Integral: 0 sec

Exit

Edit

Alarm 1 control

Alarm 1 setup

Alarm 2 control

Exit

Enter

FIGURE 5-2. Low Alarm

FIGURE 5-3. High Alarm

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Summary of Contents for Rosemount 54eA

Page 1: ...l service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at www instraview com LOOKING FOR MORE INFORMATION Visit us on the web at www artisantg com for more information on ...

Page 2: ...Model 54eA Amperometric HART Analyzer Controller Instruction Manual 51 54eA rev I April 2005 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 3: ...h can cause death or serious injury therefore disconnect all hazardous voltage before accessing the electronics Relay contacts made to separate power sources must be disconnected before servicing Electrical installation must be in accordance with the National Electrical Code ANSI NFPA 70 and or any other applicable national or local codes Unused cable conduit entries must be securely sealed by non...

Page 4: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 5: ...Display Options 28 5 6 Changing Output Parameters 30 5 7 Changing Alarm Parameters 33 5 8 Configuring the pH Measurement 38 5 9 Temperature Compensation and Temperature Units 41 5 10 Noise Reduction 42 5 11 Main Sensor Calibration Parameters 43 5 12 Barometric Pressure 44 5 13 Security 45 5 14 Controller Mode Priority 46 6 0 CALIBRATION TEMPERATURE 47 6 1 Introduction 47 6 2 Temperature Calibratio...

Page 6: ...n a Fault Message is Showing 84 15 3 Troubleshooting When No Fault Message is Showing Temperature 86 15 4 Troubleshooting When No Fault Message is Showing Oxygen 86 15 5 Troubleshooting When No Fault Message is Showing Free Chlorine 89 15 6 Troubleshooting When No Fault Message is Showing Total Chlorine 91 15 7 Troubleshooting When No Fault Message is Showing Monochloramine 92 15 8 Troubleshooting...

Page 7: ...and 399 09 62 pH Sensor without Internal Preamplifier 14 3 11 Hx438 and Gx448 Sensors 15 4 1 Configuration of Inputs and Outputs for Free Chlorine 16 4 2 Main Display Screen 16 5 1 Menu Tree for the 54eA Controller 21 5 2 Low Alarm 35 5 3 High Alarm 35 5 4 Interval Timer 37 7 1 Sensor Current as a Function of Dissolved Oxygen Concentration 49 8 1 Sensor Current as a Function of Free Chlorine Conce...

Page 8: ...available with free chlorine only the 54eA features automatic buffer recognition with stabilization check Buffer pH and temperature data for commonly used buffers are stored in the analyzer Glass impedance diagnostics warn the user of an aging or failed pH sensor The analyzer has a rugged weatherproof corrosion resistant enclosure NEMA 4X and IP65 of epoxy painted aluminum It is suitable for panel...

Page 9: ...mA or 0 20 mA isolated outputs Continuously adjustable Outputs can be assigned to oxygen chlorine ozone pH or temperature Output dampening is user selectable Maximum load at 24 Vdc or 115 230 Vac is 600 ohms Maximum load at 100 200 Vac is 550 ohms Output 1 has superimposed HART signal option 09 only Outputs can be programmed for PID control option 20 only Output Accuracy 0 05 mA Alarms Relay 1 Pro...

Page 10: ...n pH measurement available with free chlorine only Measurement Range 0 14 pH Resolution 0 01 pH Sensor Diagnostics Glass impedance for broken or aging electrode and reference offset Reference impedance for fouled reference junction is not available Repeatability 0 01 pH at 25 C Stability 0 01 pH month non cumulative at 25 C RECOMMENDED pH SENSORS Model 399 09 62 399 14 and 399VP 09 See pH sensor p...

Page 11: ...Standard features include a three line back lit display dual isolated outputs and three programmable alarm relays HART communications and PID and TPC control are optional CODE OPTIONS 01 115 230 VAC 50 60 Hz Power 02 24 VDC MODEL 54eA MICROPROCESSOR ANALYZER CODE OPTIONS 09 HART Communications Protocol 20 Controller Outputs PID and TPC ACCESSORIES PART NO DESCRIPTION 2002577 Wall and two inch pipe...

Page 12: ...ble for outdoor use do not install it in direct sunlight or in areas of extreme temperatures 2 Install the controller in an area where vibrations and electromagnetic and radio frequency interference are minimized or absent 3 Keep the controller and sensor wiring at least one foot from high voltage conductors Be sure there is easy access to the controller 4 The controller is suitable for panel pipe...

Page 13: ...75 SIDE VIEW FRONT VIEW 4 MOUNTING HOLES WHEN INCH AND METRIC DIMS ARE GIVEN MILLIMETER INCH PIPE MOUNTING PN 2002577 WALL MOUNTING FIGURE 2 3 Pipe and Wall Mounting Dimensions DWG NO REV 40005402 E Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 14: ...3 137 9 5 43 68 96 2 715 137 9 5 43 144 5 7 FRONT VIEW BOTTOM VIEW SIDE VIEW PANEL SUPPLIED BY OTHERS RADIUS MAX 4 PLACES PANEL FLUSH TO BEZEL PANEL MOUNTING BRACK ET WITH BOLTS WASHERS AND SCREWS 2 PLACES 843 DIA ELECTRICAL CONDUIT ENTRANCE 5 PLACES FOR PG 13 5 CABLE GLANDS OR 1 2 INCH CONDUIT FITTINGS 68 96 2 715 PANEL CUT OUT INFORMATION 7 DWG NO REV 40005401 D Artisan Technology Group Quality ...

Page 15: ...re 3 1 Keep sensor and output signal wiring separate from power wiring Do no run sensor and power cables in the same conduit or close together in a cable tray AC wiring must be 14 gauge or greater Be sure to connect earth ground from the power cable to the nearby ground lug A good earth ground is necessary for proper operation of the controller Provide a switch or breaker to disconnect the analyze...

Page 16: ...ODEL 54eA SECTION 3 0 WIRING FIGURE 3 1 Power Input and Relay Output Wiring for Model 54eA DWG NO REV 454EPH02 D Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 17: ...ical wiring Use the pigtail wire and wire nuts provided with the amperometric sensor when more than one wire must be attached to a single terminal See Figures 3 3 and 3 4 DWG NO REV 40054e03 A DWG NO REV 40499A23 A DWG NO REV 40499A24 A NOTE The Model 54eA analyzer leaves the factory configured for use with the Model 499ADO sensor ppm dissolved oxygen If a 499ADO sensor is not being used turn to S...

Page 18: ...quired for the free chlorine membrane permeability correction NOTE When wiring a pH and amperometric sensor to the controller connect the anode and reference terminals TB3 1 and TB5 1 with the 10MΩ Ω jumper PN 23980 00 provided with the analyzer Refer to the table to select the appropriate wiring diagram Most of the wiring diagrams require that two or more shield wires be attached to a single term...

Page 19: ...ternal preamplifier Although the blue wire is connect ed to a terminal labeled solution ground the blue wire does not connect to a solution ground in the sensor The 399 14 sensor has no solution ground The blue wire instead ties the preamplifier in the sensor to instrument common DWG NO REV 4054eA05 A DWG NO REV 4054eA03 A Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE w...

Page 20: ...P 09 pH sensor without internal preamplifier 13 Although the blue wire is connect ed to a terminal labeled solution ground the blue wire does not connect to a solution ground in the sensor The 399 14 sensor has no solution ground The blue wire instead ties the preamplifier in the sensor to instrument common DWG NO REV 4054eA02 B DWG NO REV 4054eA06 A Artisan Technology Group Quality Instrumentatio...

Page 21: ...E 3 10 Free chlorine sensor with optimum EMI RFI cable or Variopol cable and 399 09 62 pH sensor without internal preamplifier DWG NO REV 4054eA04 A Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 22: ...lved oxygen sensors use a 22k NTC thermistor The thermistor is wired to terminals 1 and 3 on TB5 FIGURE 3 11 Hx438 and Gx448 sensors MODEL 54eA SECTION 3 0 WIRING 15 DWG NO REV 4054eA07 A Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 23: ... choices 6 To store a number or setting in memory press Save F4 7 To leave without storing changes press Esc F3 8 To leave and return to the previous screen press Exit F1 9 To end a calibration step and leave the previous calibration in place press Abort F1 10 Occasionally information screens will appear To leave the information screen and move to the next screen press Cont F3 4 4 ALARM STATUS Gre...

Page 24: ...oxygen saturation 0 to 200 200 d if chlorine monochloramine or ozone 9999 to 9999 ppm 20 ppm e if pH 2 00 to 20 00 14 00 f if temperature 5 to 130 C 130 C 3 Alarm 3 See alarm 2 See alarm 2 B Outputs Section 5 2 and 5 3 1 Output 1 or 2 4 mA setting a if oxygen ppm 99 to 99 ppm 0 ppm b if oxygen ppb 999 to 999 ppb 0 ppb c if oxygen saturation 0 to 200 0 d if chlorine monochloramine or ozone 9999 to ...

Page 25: ...ening 0 299 sec 0 sec c Hold mode Hold last value or go to fixed value Hold last value d Fixed hold value 0 22 mA 21 mA e Fault value 0 22 mA 22 mA 3 Output 1 Setup PID a Proportional 0 to 299 9 100 b Integral 0 to 2999 sec 0 sec c Derivative 0 to 299 9 0 0 4 Output 2 Control a Measurement Oxygen chlorine ozone pH or temperature Temperature b Control Normal or PID Normal 5 Output 2 Setup normal Se...

Page 26: ...saturation 0 to 200 200 if chlorine monochloramine or ozone 9999 to 9999 ppm 2 ppm if pH 2 0 to 20 00 2 00 if temperature 5 to 130 C 100 C h Relay fault None open or closed None 4 Alarm 2 Control a Activation method Oxygen chlorine monochloramine ozone temperature pH Oxygen b Control mode Normal or TPC Normal 5 Alarm 2 setup normal a Configuration Low high or off Low Rest of alarm 2 setup is the s...

Page 27: ...isopotential 0 to 14 pH 7 00 E Temperature compensation Section 5 9 1 Temperature compensation Auto or manual Auto 2 Manual temperature 15 to 130 C 25 C F Noise Reduction section 5 10 Noise rejection 50 or 60 Hz 60 Hz G Main sensor calibration Section 5 11 1 Stabilize reading a oxygen ppm 0 to 20 ppm 0 05 ppm b oxygen ppb 0 to 999 ppb 50 ppb c oxygen saturation 0 to 200 1 d chlorine monochloramine...

Page 28: ...in sensor Adjust temperature Calibrate pH Slope Buffer calibration Standardize Main measurement Main sensor current Sensitivity μA ppm Zero current pH reading pH mV reading pH slope mV pH pH offset Barometric pressure Glass impedance Noise rejection Software version Device ID Output trim 21 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 29: ...al integral Derivative Hold feature setup Normal only PID only Alarms Alarm 1 2 3 control Measurement main snr pH temp Control mode normal TPC Alarm 1 2 3 setup Alarm High low or off Setpoint Hysteresis Delay Time period URV LRV Relay default Interval timer Timer Alarm 1 2 or 3 or disable Interval Repeats On time Off time Recovery time Alarm 4 setup Feed limit timer Feed limit Alarm 1 2 or 3 or di...

Page 30: ... Glass impedance low Zero offset Impedance temp comp on or off Temperature Temperature comp auto or manual Units C or F Noise Rejection Noise rejection 50 or 60 Hz Barometric Pressure Measurement Auto or manual Units mm Hg kPa atm barg in Hg Main sensor cal Stabilize conc n Stabilize time Salinity oxygen only Security pH calibration Autocal standard manual Merck Ingold DIN 19267 Stabilize pH Stabi...

Page 31: ...1 to return to the screen in step 4 Choose a new alarm 7 If the alarm is TPC a screen like the one shown will appear The set point is 1 000 ppm Press Edit F4 Use the arrow keys to change the setpoint Press Save F4 to store the new value Press Exit F1 to return to the screen in step 4 Choose a new alarm Alarm setpoints Output setpoints Simulate tests Exit Enter Alarm 1 setpoint Alarm 2 setpoint Ala...

Page 32: ...ead of 4mA The live current output is shown on the third line Move the cursor to the desired line and press Edit F4 Use the arrow keys to change the setpoint Press Save F4 to store the new value Press Exit F1 to return to the screen in step 4 Choose the other output and continue Output 1 setpoints Output 2 setpoints Exit Enter Alarm setpoints Output setpoints Simulated test Exit Enter CAUTION Curr...

Page 33: ...assign the setpoint and the upper and lower range values URV and LRV when the 54eA is being used for PID control Assign the LRV to 4 mA and the URV to 20 mA The LRV is the devi ation from the setpoint that will result in a 4 mA output The URV is the deviation from the setpoint that will result in a 20 mA output Example The setpoint is 1 00 ppm The URV is 0 50 and the LRV is 0 00 If the present rea...

Page 34: ... returns to normal operation To change the timeout to a different value see Section 5 5 To end the simulation at any time press Exit F1 6 This screen appears when an alarm is being simulated To change the state of the relay press Edit F4 Use the or keys to change from open to closed Press Test F4 then Esc F3 The alarm will be simulated for 10 minutes then the alarm returns to normal operation To c...

Page 35: ...oices Press Save F4 to store the selection Use the key to move the cursor to Meas units and press Edit F4 Use the or keys to scroll through the choices Press Save F4 to store the selection Display Outputs Alarms Exit Enter Measure Oxygen Sensor RMT Standard Meas units ppm Exit Edit Measure Oxygen Sensor RMT Standard Meas units ppm Exit Enter 1 The 54eA controller can be used with most amperometric...

Page 36: ...value 10 min Exit Edit Temp units C or F Output 1 mA or of full scale Output 2 mA or of full scale Language English Français Español Deutsch Italiano Display left sensor current I pH appears only if free chlorine is being measured and pH was enabled alarm 1 setpoint no units alarm 3 setpoint no units or blank Display right sensor current I pH appears only if free chlorine is being measured and pH ...

Page 37: ... Process Temperature and pH if free chlorine is being measured and pH was enabled Process means the measurement made by the main sensor oxygen ozone free chlorine or total chlorine Press Save F4 to store the selection Output 1 control Output 1 setup Output 2 control Exit Enter Output Measurement Control Mode Exit Enter Output Process Exit Edit Display Outputs Alarms Exit Enter 1 This section descr...

Page 38: ...The fixed value must be between 0 and 22 00 mA Fault If the analyzer detects a fault the output will signal the fault by going to a user selected current between 0 and 22 00 mA For allowed values see Table 5 1 9 Output setup for PID outputs a Move the cursor to the desired output setup and press Enter F4 b Use the and keys to move the cursor to the desired param eter Press Edit F4 Use the arrow ke...

Page 39: ...old mode will automatically disengage after being on for 20 minutes NOTE Selecting Enable hold or 20 min timeout does not put the controller in hold It only allows the user to put the controller in hold when the controller is in calibrate mode 11 Using hold If hold was enabled in step 10 above the hold screen will appear as soon as the user enters the Calibrate menu To activate Hold press Edit F4 ...

Page 40: ...rsor to the desired output control header Press Enter F4 b With the cursor on Activation method press Enter F4 Alarm 1 control Alarm 1 setup Alarm 2 control Exit Enter Outputs Alarms pH Exit Enter Output setpoints Simulated tests Configure Exit Enter 1 This section describes how to configure the controller alarms Alarms 1 2 and 3 can be assigned to the main amperometric measurement oxygen ozone fr...

Page 41: ... for normal alarms a Move the cursor to the desired alarm setup and press Enter F4 b Use the and keys to move the cursor to the desired param eter Press Edit F4 Use the arrow keys to change the setting to the desired value and press Save F4 to store the value See the Figures 5 2 and 5 3 for an explanation of terms low alarm high alarm hysteresis and delay See Table 5 1 for allowed values and limit...

Page 42: ... over which deviations from the setpoint are integrated to remove continuing offsets Smaller values provide higher response Derivative Derivative is a form of control that resists all changes in readings Higher readings increase the derivative function To prevent process oscillation use caution in setting the derivative value Time period Time period is the cycle time for TPC control One cycle cons...

Page 43: ...limit timer The feed limit timer prevents overfeeding of treatment chemicals by automatically turning off the relay after a timeout period a From the menu header screen step 6 move the cursor to Feed limit timer Press Enter F4 b With the cursor on Feed limit press Edit Use the key to scroll through the choices disable AL 1 AL 2 and AL 3 Press Save F4 to store the selection c Move the cursor to Tim...

Page 44: ...old even if hold was not enabled and the other two alarms will be placed in their default states a From the menu header screen step 6 move the cursor to Interval timer b With the cursor on Interval timer press Enter F4 Use the key to scroll through the selections Use the arrow keys to change settings Press Save F4 to store Refer to the diagram for definition of terms interval repeats on time off t...

Page 45: ...n at left appears Use the key to move the cursor to pH value Press Edit F4 Use the arrow keys to change the pH value to the desired number The controller will use the value entered in ALL pH correction calculations no matter what the true pH is 6 This screen appears if automatic pH correction for chlorine readings is being used To enable diagnostic fault alarms and warning mes sages and to change ...

Page 46: ...ffer Zero offset is a measure of how far the true value is from 0 0 mV Zero offset is calculated every time the sensor is calibrated A good limit is 60 mV Imped comp The impedance of a glass electrode is a strong function of temperature For accurate comparison of impedances readings must be temperature corrected For best results leave Imped comp on d Press Exit F4 to return to the screen in step 6...

Page 47: ...he temperature coefficient is negative The temperature coefficient must usually be determined empirically APPLICATION WARNING If pH is being measured for the purposes of correct ing a free chlorine reading do NOT use solution tem perature correction Keep the temperature coeffi cient at 0 000 pH C Operate iso Entering a temperature coefficient ALWAYS causes the operating isopotential to change from...

Page 48: ...re using an RTD resistance temperature device or 22kNTC thermistor in the sensor The controller then uses the measured temperature to calculate membrane permeability correc tions solubility factors for oxygen only and the millivolt to pH con version factor for pH corrected free chlorine only Manual In manual temperature compensation the controller uses the temperature entered by the user to calcul...

Page 49: ... sensor cal Exit Enter 2 Press any key to enter the main menu Move the cursor to Program and press Enter F4 3 Move the cursor to Configure and press Enter F4 4 Move the cursor to Noise rejection and press Enter F4 5 To change the frequency setting press Edit F4 Use the key to toggle between 50 and 60 Hz Press Save F4 to store the change Artisan Technology Group Quality Instrumentation Guaranteed 8...

Page 50: ...oncentration must remain within a specified range for a specified period of time The default values are 0 05 ppm 50 ppb and 10 seconds Using a small stabilize value and a long stabilize time is the best protection against calibration while a reading is still changing Dual range cal Free and total chlorine sensors from Rosemount Analytical Model 499ACL 01 and 499ACL 02 respectively become non linea...

Page 51: ...arometric pressure and press Enter F4 5 Use the and keys to move through the list of items To make a change press Edit F4 Use the arrow keys to change settings to the desired value and press Save F4 Bar meas The controller has an on board sensor that automatically measures barometric pressure To bypass the pressure sensor select Manual Be sure to enter the desired pressure in the third line During...

Page 52: ... through the list of items To enter a password press Edit F4 Use the arrow keys to enter a three digit password Press Save F4 to store the value Lock all Until the user enters the lock all password all he can do is view the main display Entering the lock all password allows the user access to all Level 1 functions Lock program Entering the lock program password allows the user access to all Level ...

Page 53: ...terval Timer means the timer sequence is occurring 4 Hold Mode occurs when hold is activated by the operator i e during calibration 5 Feed Limit occurs when a feed limit timer has reached its limit and is turned off after being on for too long 6 Simulate tests are described in Section 5 4 Action Definitions 1 Normal is determined by process conditions or how the item has been configured Section 5 ...

Page 54: ...ture the controller calculates the vapor pressure of water and using the barometric pressure calculates the partial pressure of atmospheric oxygen Once the controller knows the partial pressure it calculates the equilibri um solubility of oxygen in water using a temperature dependent factor called the Bunsen coefficient Overall a 1 C error in the temperature measurement produces about a 2 error in...

Page 55: ...he main display NOTE If Hold was activated during calibration Hold Mode Activated will continue to flash in the main display Return the sensor to normal and deactivate Hold Refer to Section 5 6 step 11 25 1 C Adjust temp 025 1 C Esc Save Zero main sensor Adjust temperature Output trim Exit Enter Place the sensor and a standard thermometer in the process liquid 1 Check the controller temperature re...

Page 56: ...enerate a current directly proportional to the rate at which oxygen molecules diffuse through a membrane stretched over the end of the sensor The diffusion rate depends on the difference in chemical poten tial between oxygen in the sensor and oxygen in the sample An electrochemical reaction which destroys any oxy gen molecules entering the sensor keeps the concentration and the chemical potential ...

Page 57: ...Zero main sensor Adjust temperature Exit Enter 0 0 ppm Sensor must be in zero solution Abort Cont 2 From the main display press any key to obtain the main menu With the cursor on Calibrate press Enter F4 NOTE If Hold was enabled in Section 5 6 the hold screen will appear To activate hold refer to Section 5 6 step 11 3 Press the key once to move the cursor to Zero main sensor Press Enter F4 4 The s...

Page 58: ... Press Enter F4 to select Calibrate in air 6 This screen shows the barometric pressure and temperature that will be used for the calibration If the barometric pressure or temperature is incorrect press Abort F1 Refer to Section 7 5 for the pressure cali bration procedure Refer to Section 6 2 for the temperature calibration procedure NOTE The barometric pressure sensor is inside the controller encl...

Page 59: ...pm 499ADO 15 25 μA 1 800 3 100 499A Tr DO 30 50 μA 3 600 6 100 Hx438 and Gx448 40 80 nA 4 8 9 8 NOTE During calibration ERROR and WARNING messages may appear If an ERROR message appears press Exit F1 to leave and return to the previous screen If a WARNING message appears press Cont F3 to continue the calibration or press Abort F1 to leave Continuing the calibration after a warning message appears ...

Page 60: ...ress the key once to move the cursor to Calibrate in process Then press Enter F4 6 Press Cont F3 Wait flashes until the sensor is stabilized If the controller appears locked the reading is not stable enough Increase the amount the concentration is permitted to vary or decrease the stabilization time See Section 5 11 Repeat the cali bration To proceed with the calibration as is press Cont F3 7 Once...

Page 61: ...r cools the pressure of the air trapped inside the enclosure may be as much as 5 different from ambient pressure 7 5 CALIBRATING BAROMETRIC PRESSURE MODEL 54eA SECTION 7 0 CALIBRATION DISSOLVED OXYGEN 2 From the main display press any key With the cursor on Calibrate press Enter F4 3 Press Enter F4 to select Calibrate main sensor 4 Press the key twice to move the cursor to Barometric pressure Pres...

Page 62: ...ample tap just downstream from the sensor Chlorine solutions are unstable Run the test immediately after taking the sample Try to calibrate the sen sor when the chlorine concentration is at the upper end of the normal operating range Free chlorine measurements made with the 499ACL 01 sensor also require a pH correction Free chlorine is the sum of hypochlorous acid HOCl and hyprochlorite ion OCl Th...

Page 63: ...in zero solution Abort Cont 2 From the main display press any key to obtain the main menu With the cursor on Calibrate press Enter F4 NOTE If Hold was enabled in Section 5 6 the hold screen will appear To activate hold refer to Section 5 6 step 11 Press the key once to move the cursor to Zero main sensor Press Enter F4 3 The screen at left appears Press Cont F3 Wait flashes until the sensor is sta...

Page 64: ...taking the sample Immediately determine free chlorine Note the controller reading again If the present reading X differs from the reading when the sample was taken Y cal culate the value to enter C from the following formula C X Y A where A is the concentration of chlorine measured in the grab sample Press Edit F4 Use the arrow keys to change the concentration in the sec ond line of the display to...

Page 65: ... flow until it is within the range recommended for the chlorine sensor Refer to the sensor instruction sheet 8 4 DUAL SLOPE CALIBRATION FIGURE 8 2 Dual Slope Calibration Adjust temperature Dual range cal Output trim Exit Enter 4 From the main display press any key to obtain the main menu With the cursor on Calibrate press Enter F4 NOTE If Hold was enabled in Section 5 6 the hold screen will appear...

Page 66: ...step 7 determine chlorine in a sample of the process liquid Press Edit F4 Use the arrow keys to change the concentration in the second line of the display to the desired value Press Save F4 to store the value 11 Press Exit F1 three times to return to the main display NOTE If Hold was activated during calibration Hold Mode Activated will continue to flash in the main display Return the sensor to no...

Page 67: ...fore converting the result to a total chlorine value New sensors require zeroing before being placed in service and sensors should be zeroed whenever the electrolyte solution is replaced The best zero standard is sample without reagent added The purpose of the full scale standard is to establish the slope of the calibration curve Because stable total chlorine standards do not exist the sensor must...

Page 68: ...0 CALIBRATION TOTAL CHLORINE Calibrate main sensor Zero main sensor Adjust temperature Exit Enter 0 0 ppm Sensor must be in zero solution Abort Cont 4 From the main display press any key to obtain the main menu With the cursor on Calibrate press Enter F4 NOTE If Hold was enabled in Section 5 6 the hold screen will appear To activate hold refer to Section 5 6 step 11 Press the key once to move the ...

Page 69: ...etermine total chlorine Note the controller reading again If the present reading X differs from the reading when the sample was taken Y cal culate the value to enter C from the following formula C X Y A where A is the concentration of chlorine measured in the grab sample Press Edit F4 Use the arrow keys to change the concentration in the sec ond line of the display to the desired value Press Save ...

Page 70: ...sheet FIGURE 9 3 Dual Slope Calibration Adjust temperature Dual range cal Output trim Exit Enter 4 From the main display press any key to obtain the main menu With the cursor on Calibrate press Enter F4 NOTE If Hold was enabled in Section 5 6 the hold screen will appear To activate hold refer to Section 5 6 step 11 Press the key three times to move the cursor to Dual range cal Press Enter F4 5 Adj...

Page 71: ...p 7 determine chlorine in a sample of the process liquid Press Edit F4 Use the arrow keys to change the concentration in the second line of the display to the desired value Press Save F4 to store the value 11 Press Exit F1 three times to return to the main display NOTE If Hold was activated during calibration Hold Mode Activated will continue to flash in the main display Return the sensor to norma...

Page 72: ...enever the elec trolyte solution is replaced The best zero standard is deionized water The purpose of the full scale standard is to establish the slope of the calibration curve Because stable mono chloramine standards do not exist the sensor must be calibrated against a test run on a grab sample of the process liquid Several manufacturers offer portable test kits for this purpose Observe the follo...

Page 73: ...solution Abort Cont 2 From the main display press any key to obtain the main menu With the cursor on Calibrate press Enter F4 NOTE If Hold was enabled in Section 5 6 the hold screen will appear To activate hold refer to Section 5 6 step 11 Press the key once to move the cursor to Zero main sensor Press Enter F4 3 The screen at left appears Press Cont F3 Wait flashes until the sensor is stabilized ...

Page 74: ... X differs from the reading when the sample was taken Y calculate the value to enter C from the fol lowing formula C X Y A where A is the concentration of ozone measured in the grab sample Press Edit F4 Use the arrow keys to change the concentration in the second line of the display to the desired value Press Save F4 to store the value 6 Press Exit F1 four times to return to the main display NOTE ...

Page 75: ...ero standard Deionized water Tap water known to contain no ozone Expose tap water to ozone free air for several hours The purpose of the full scale standard is to establish the slope of the calibration curve Because stable ozone stan dards do not exist the sensor must be calibrated against a test run on a grab sample of the process liquid Several manufacturers offer portable test kits for this pur...

Page 76: ...ort Cont 2 From the main display press any key to obtain the main menu With the cursor on Calibrate press Enter F4 NOTE If Hold was enabled in Section 5 6 the hold screen will appear To activate hold refer to Section 5 6 step 11 Press the key once to move the cursor to Zero main sensor Press Enter F4 3 The screen at left appears Press Cont F3 Wait flashes until the sensor is stabilized Once the ze...

Page 77: ...X differs from the reading when the sample was taken Y calculate the value to enter C from the fol lowing formula C X Y A where A is the concentration of ozone measured in the grab sample Press Edit F4 Use the arrow keys to change the concentration in the second line of the display to the desired value Press Save F4 to store the value 6 Press Exit F1 four times to return to the main display NOTE I...

Page 78: ...d between at least 0 and 60 C pH at 25 C Standard s nominal pH 1 68 NIST DIN 19266 JSI 8802 BSI see note 1 3 56 NIST BSI 3 78 NIST 4 01 NIST DIN 19266 JSI 8802 BSI 6 86 NIST DIN 19266 JSI 8802 BSI 7 00 see note 2 7 41 NIST 9 18 NIST DIN 19266 JSI 8802 BSI 10 01 NIST JSI 8802 BSI 12 45 NIST DIN 19266 FIGURE 12 1 Calibration Slope and Offset Note 1 NIST is National Institute of Standards DIN is Deut...

Page 79: ...tain the main menu With the cursor on Calibrate press Enter F4 NOTE If Hold was enabled in Section 5 6 the hold screen will appear To activate hold refer to Section 5 6 step 11 5 Press the key three times to move the cursor to Calibrate pH Press Enter F4 6 Press Enter F4 7 Rinse the sensor with water and place it in buffer 1 Be sure the glass bulb and reference junction are completely submerged Sw...

Page 80: ... To view the slope and offset press any key to enter the main menu Press the key once to move the cursor to Diagnostic variables Press Enter F4 Press the key six times to scroll through the list of diagnostic variables Note that the pH slope is at 25 C 10 02pH Buf2 done 10 01 25 C Abort Cont 10 02pH Autocal buffer 2 Abort Cont NOTE During calibration ERROR and WARNING messages may appear If an ERR...

Page 81: ...tion 5 6 step 11 6 Press the arrow key three times to move the cursor to Calibrate pH Press Enter F4 7 With the cursor on 2 pt calibration press Enter F4 8 Rinse the sensor and thermometer with water and place them in buffer 1 Be sure the glass bulb and junction are completely sub merged Swirl the sensor Press Cont F3 Wait flashes until the reading stabilizes The large number on the first line is ...

Page 82: ...r to normal and deactivate Hold Refer to Section 5 6 step 11 13 To view the slope and offset press any key to enter the main menu Press the key once to move the cursor to Diagnostic variables Press Enter F4 Press the key six times to scroll through the list of diagnostic variables Note that the pH slope is at 25 C 4 00pH Pt 1 4 00pH 25 0 C Exit Pt 2 Edit 10 01pH Pt 2 10 01pH 25 0 C Exit Edit NOTE ...

Page 83: ...Output trim Exit Enter 4 From the main display press any key to obtain the main menu With the cursor on Calibrate press Enter F4 NOTE If Hold was enabled in Section 5 6 the hold screen will appear To activate hold refer to Section 5 6 step 11 5 Press the key three times to move the cursor to Calibrate pH Press Enter F4 6 Press the key once to move the cursor to Standardize pH Press Enter F4 7 The ...

Page 84: ...e pH Press Enter F4 4 Press the key twice to move the cursor to pH slope Press Enter F4 5 Press Edit F4 Use the arrow keys to change the slope to the desired value The slope msut be between 45 and 60 mV pH Press Save F4 6 Press Exit F1 four times to return to the main display NOTE If Hold was activated during calibration Hold Mode Activated will continue to flash in the main display Return the sen...

Page 85: ...reminds the user that the output currents will be affected Pres Cont F3 to continue 4 Use the or keys to move the cursor to the desired output and press Enter F4 5 Select Cal point 1 0 or 4 mA or Cal point 2 20 mA 6 Move the cursor to Meter and press Enter F4 Measure the output current with a calibrated ammeter Use the or keys to change the display to match the ammeter reading and press Save F4 7 ...

Page 86: ...static and its output is unchanged Any deviation of measurement from set point will cause the controller to react by changing its output signal PID Control Mode Combinations All PID controllers have several control modes which can be used in various combinations proportional plus integral reset proportional plus derivative rate and a combination of proportional P integral I and deriva tive D Each ...

Page 87: ...l ling most processes with many combinations of rea sonable control mode settings Process Reaction Curve Method A PID loop can be tuned using the process reaction curve method This method involves making a step change in the chemical feedrate usually about 50 of the pump or valve range and graphing the response of the Model 54eA controller reading versus time The process reaction curve graphically...

Page 88: ... A line is drawn on the process reaction curve tangent to the curve at point of maximum rise slope as shown in Figure 14 1 The Time Delay D or lag time extends from zero time on the horizontal axis to the point where the tangent line intersects the time axis The Response Time period L extends from the end of delay period to the time at which the tangent line intersects the 100 reaction completion ...

Page 89: ...output signal was x 100 12 5 So the Plant Gain is C 2 66 Once R and C are calculated the proportional and integral bands can be determined as follows Proportional band P 286 Integral Time seconds per repeat I 3 33 x D x C So for the example P 254 I 3 33 4 sec 2 66 36 seconds To enter these parameters use the procedure detailed in Section 5 6 pH2 pH1 pH Hi pH Lo 8 2 7 2 pH 9 0 6 0 pH 6 4 milliamps ...

Page 90: ...of 8 would result in a relay on 8 7 2 0 100 or 50 of the time If P was changed to 50 the same relay would be on 8 7 2 0 50 or 100 of the time The integral band is set in seconds and acts to increase the controller output as more time is spent away from the setpoint A smaller value in seconds will result in faster integration response Too low a value will result in excess oscillation The derivative...

Page 91: ...nostic variables go to the main display and press any key Move the cursor to Diagnostic variables and press Enter F4 Use the or key to move up or down the list Measurement Section Temperature 15 3 Dissolved oxygen 15 4 Free chlorine 15 5 Total chlorine 15 6 Monochloramine 15 7 Ozone 15 8 pH 15 9 15 2 TROUBLESHOOTING WHEN A FAULT MESSAGE IS SHOWING Fault message Explanation See Section High input c...

Page 92: ...ger submerged in the process or the sensor is possibly nearing the end of its useful life First verify that the sensor is clean and submerged in the process liquid Also verify that the sensor can still be calibrated in buffers Make a note of the sensor slope If the slope is between 54 and 60 mV unit pH the sensor is good If the slope is between 48 and 50 mV unit pH the sensor is near the end of it...

Page 93: ...with a jumper 15 2 9 Failure factory and Failure eeprom Turn the power off wait about 30 sec then turn the power back on If the error message does not clear call the factory In the United States call 800 854 8257 Outside the United States call 949 757 8500 15 3 TROUBLESHOOTING WHEN NO FAULT MESSAGE IS SHOWING TEMPERATURE 15 3 1 Temperature measured by standard was more than 1 C different from cont...

Page 94: ...holes Also verify that air bubbles are not blocking the holes Fill the reservoir and establish electrolyte flow to the cathode Refer to the sensor instruction manual for the detailed procedure For Gx438 and Hx438 sensors the best way to ensure that there is an adequate supply of electrolyte solution is to simply add fresh electrolyte solution to the sensor Refer to the sensor instruction manual fo...

Page 95: ...rly oxygen must diffuse freely through the membrane A coat ing on the membrane will interfere with the passage of oxygen resulting in slow response C Is the sensor in direct sunlight If the sensor is in direct sunlight during air calibration readings will drift as the sen sor warms up Because the temperature reading lags the true temperature of the membrane calibrating the sensor in direct sunligh...

Page 96: ... the flow path between the electrolyte reservoir and membrane clear Often the flow of electrolyte and be started by simply holding the sensor with the membrane end pointing down and sharply shaking the sensor a few times as though shak ing down a clinical thermometer If shaking does not work try clearing the holes around the cathode stem Hold the sensor with the membrane end pointing up Unscrew th...

Page 97: ...icular attention to shield and ground connections E If automatic pH correction is being used check the pH reading If the pH reading is noisy the chlorine read ing will also be noisy If the pH sensor is the cause of the noise use manual pH correction until the problem with the pH sensor can be corrected F Is the membrane in good condition and is the sensor filled with electrolyte solution Replace t...

Page 98: ...is about 5 minutes 15 5 8 Chlorine readings are too low A Was the sample tested as soon as it was taken Chlorine solutions are unstable Test the sample immediate ly after collecting it Avoid exposing the sample to sunlight B Low readings can be caused by zeroing the sensor before the residual current has reached a stable minimum value Residual current is the current the sensor generates even when ...

Page 99: ...r C Is the conductivity of the zero solution greater than 50 uS cm DO NOT USE DEIONIZED OR DISTILLED WATER TO ZERO THE SENSOR The zero solution should contain at least 0 5 grams of sodium chloride per liter D Is the space between the membrane and cathode mesh filled with electrolyte solution Often the flow of elec trolyte and be started by simply holding the sensor with the membrane end pointing d...

Page 100: ... sensor filled with electrolyte solution Replace the fill solution and electrolyte Refer to the sensor instruction manual for details 15 7 5 Readings drift A Is the sample temperature changing Membrane permeability is a function of temperature The time constant for the sensor is about five minutes Therefore the reading may drift for a while after a sudden temperature change B Is the membrane clean...

Page 101: ... sensor generates even when no monochloramine is in the sample Because the residual current is subtracted from subsequent measured currents zeroing before the current is a minimum can lead to low results Example The true residual current for a monochloramine sensor is 20 nA and the sensitivity is 400 nA ppm Assume the measured current is 600 nA The true concentration is 600 20 400 or 1 45 ppm If t...

Page 102: ...e holes at the base of the cathode stem Replace the membrane Verify that the sensor is filled with electrolyte solution Refer to the sensor instruction manual for details 15 8 3 Sensor can be calibrated but the current is too low A Sensor current is a strong function of temperature The sensor current decreases about 3 for every C drop in temperature B Sensor current depends on the rate of sample f...

Page 103: ...or does not respond to changes in ozone level A Is the grab sample test accurate Is the grab sample representative of the sample flowing to the sensor B Is the membrane clean Clean the membrane and replace it if necessary Check that the holes at the base of the cathode stem are open Use a straightened paper clip to clear blockages Replace the electrolyte solution C Replace the sensor 15 8 7 Ozone ...

Page 104: ...ture for at least 20 minutes before starting the calibration C Were correct pH values entered during manual calibration Using auto calibration eliminates error caused by improperly entered values D Is the sensor properly wired to the analyzer Check sensor wiring including any connections in a junction box See Section 3 3 E Is the sensor dirty or coated See the sensor instruction sheet for cleaning...

Page 105: ...llivolts To check the reference voltage see Section 15 15 15 9 3 Controller will not accept manual slope If the sensor slope is known from other sources it can be entered directly into the controller The controller will not accept a slope at 25 outside the range 45 to 60 mV pH If the user attempts to enter a slope less than 45 mV pH the controller will automatically change the entry to 45 If the u...

Page 106: ...e solution ground and reference terminals 2 Disconnect all sensor wires at the analyzer except pH mV IN REFERENCE IN RTD IN and RTD RETURN See the wiring diagrams in Section 3 3 If the sensor is wired to the analyzer through a remote junction box containing a preamplifier disconnect the wires at the sensor side of the junction box 3 Tape back the ends of the disconnected wires to keep them from ma...

Page 107: ... 15 11 SIMULATING INPUTS DISSOLVED OXYGEN To check the performance of the controller use a decade box to simulate the current from the oxygen sensor A Disconnect the anode and cathode leads from terminals 1 and 2 on TB3 and connect a decade box as shown in Figure 15 1 It is not necessary to disconnect the RTD leads B Set the decade box to the resistance shown in the table C Note the sensor current...

Page 108: ... depends of the voltage of the battery To view the sensor current from the main display press any key to enter the main menu Move the cursor to Diagnostics and press Enter F4 The sensor current is the second line in the display Note the units μA is microamps nA is nanoamps D Change the decade box resistance and verify that the correct current is shown Calculate current from the equation current μA...

Page 109: ... a standard millivolt source is available disconnect the jumper wire between the pH IN and the REFER ENCE IN terminals and connect the voltage source as shown if Figure 15 3 5 Calibrate the controller using the procedure in Section 11 0 Use 0 0 mV for Buffer 1 pH 7 00 and 177 4 mV for Buffer 2 pH 10 00 If the analyzer is working prop erly it should accept the calibration The slope should be 59 16 ...

Page 110: ...ample start with a simulated resistance of 103 9 Ω which corresponds to 10 0 C Assume the offset from the sensor calibration was 0 3 Ω Because of the offset the analyzer calculates temperature using 103 6 Ω The result is 9 2 C Now change the resistance to 107 8 Ω which cor responds to 20 0 C The analyzer uses 107 5 Ω to calcu late the temperature so the display reads 19 2 C Because the difference ...

Page 111: ...ing is to compare the voltage of the reference electrode with a silver silver chloride electrode known to be good The reference electrode from a new sensor is best See Figure 15 6 If the reference electrode is good the voltage difference should be no more than about 20 mV A poisoned reference electrode usually requires replacement FIGURE 15 6 Checking for a Poisoned Reference Electrode Refer to th...

Page 112: ... 230 Vac 23969 06 PCB CPU and power supply calibrated 24 Vdc 33281 00 Hinge Pin 33286 00 Gasket Front Panel 33293 00 Enclosure Rear 9010377 Back lit Display LCD Dot Matrix 9510048 Enclosure Conduit Plug 1 2 inch 105 NOTE Individual printed circuit boards cannot be ordered for Model 54e Replacement boards for Model 54e are assembled and calibrated as an integrated board stack Artisan Technology Gro...

Page 113: ...ed 4 Send the package prepaid to Emerson Process Management Liquid Division 2400 Barranca Parkway Irvine CA 92606 Attn Factory Repair RMA No ____________ Mark the package Returned for Repair Model No ____ 17 3 NON WARRANTY REPAIR The following is the procedure for returning for repair instruments that are no longer under warranty 1 Call Rosemount Analytical for authorization 2 Supply the purchase ...

Page 114: ...m the use of the equipment or goods from breach of any warranty or from any other cause All other warranties expressed or implied are hereby excluded IN CONSIDERATION OF THE STATED PURCHASE PRICE OF THE GOODS SELLER GRANTS ONLY THE ABOVE STATED EXPRESS WARRANTY NO OTHER WARRANTIES ARE GRANTED INCLUDING BUT NOT LIMITED TO EXPRESS AND IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULA...

Page 115: ...http www raihome com Specifications subject to change without notice Emerson Process Management Liquid Division 2400 Barranca Parkway Irvine CA 92606 USA Tel 949 757 8500 Fax 949 474 7250 http www raihome com Rosemount Analytical Inc 2005 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...

Page 116: ...l service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at www instraview com LOOKING FOR MORE INFORMATION Visit us on the web at www artisantg com for more information on ...

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