Emerson 54e pH/ORP - Manuals

iii MODEL 54e pH/ORP TABLE OF CONTENTS TABLE OF CONTENTS (CONTINUED) LIST OF FIGURES Figure No. Title Page 1-1 Main Display Screen............................................................................. 1 2-1 Wall Mounting ...........................................................................

1 MODEL 54e pH/ORP SECTION 1.0 DESCRIPTION AND SPECIFICATIONS SECTION 1.0 DESCRIPTION AND SPECIFICATIONS 1.1 GENERAL DESCRIPTION The Model 54e pH/ORP analyzer/controller monitorsand controls pH in chemical processes used in manyindustries. This manual's sections and appendicescover the system's conf...

MODEL 54e pH/ORP SECTION 1.0 DESCRIPTION AND SPECIFICATIONS 1.3 SPECIFICATIONSPHYSICAL SPECIFICATIONS - GENERAL Enclosure: Epoxy-painted aluminum, NEMA 4X (IP65) , 144 X 144 X 132 mm, DIN size (5.7 X 5.7 X 5.2 in.) Front Panel: Membrane keyboard with tactile feedback and user selectable security. Li...

MODEL 54e pH/ORP SECTION 1.0 DESCRIPTION AND SPECIFICATIONS The Model 54e when configured as a pH analyzer , requires a dual (glass and reference) impedance pre-amplifier (patent pending). This preamp converts thehigh impedance pH glass electrode signal to a lowimpedance signal. The preamplifier may...

MODEL 54e pH/ORP SECTION 1.0 DESCRIPTION AND SPECIFICATIONS 4 1.4 ORDERING INFORMATION The Model 54e pH/ORP Microprocessor Analyzer is housed in a rugged, NEMA 4X (IP65) epoxy- painted cast aluminum enclosure. Standard features include a back-lit dot-matrix liquid crystal display, sensor diagnostics...

5 MODEL 54e pH/ORP SECTION 2.0 INSTALLATION SECTION 2.0 INSTALLATION This section is for installation of the controller. WARNING All electrical installation must conform to theNational Electrical Code, all state and localcodes, and all plant codes and standards forelectrical equipment. All electrica...

MODEL 54e pH/ORP SECTION 3.0 WIRING SECTION 3.0 WIRING 3.1 GENERAL WARNING All electrical installation must conform to theNational Electrical Code, all state and localcodes, and all plant codes and standards forelectrical equipment. All electrical installationsmust be supervised by a qualified and r...

MODEL 54e pH/ORP SECTION 3.0 WIRING 3.6 FINAL ELECTRICAL CHECK When all wiring is completed, apply power to the con-troller. Observe the controller for any questionablebehavior and remove power if you see a problem. Withthe pH sensor in the process, the display will show a pHvalue (though it may not...

14 MODEL 54e pH/ORP SECTION 4.0 CALIBRATION SECTION 4.0 CALIBRATION The following procedures are described in this section: • Temperature Calibration (Section 4.1) • Auto Buffer (Two-Point) Calibration (Section 4.2) • Manual Two-Point Calibration (Section 4.3) • Single-Point pH Calibration (Section ...

4.1 TEMPERATURE CALIBRATION MODEL 54e pH/ORP SECTION 4.0 CALIBRATION This procedure is used to ensure an accurate temperature measurementby the temperature sensor. It enables the controller to display processtemperature accurately as well as to compensate for the effect of tem-perature on the pH rea...

16 4.2 AUTOMATIC TWO-POINT CALIBRATION MODEL 54e pH/ORP SECTION 4.0 CALIBRATION The two-point calibration is performed when the controller is initiallyinstalled and whenever elements of the sensor assembly or controller arereplaced. The two-point calibration re-establishes the slope of the elec-trod...

MODEL 54e pH/ORP SECTION 4.0 CALIBRATION 3. A screen like the one on the left will appear after stabilization. Use the arrow keys to select the correct buffer. If the correct buffer does not appear, refer to Section 5.9 and selecta buffer group that includes the desired buffers. As usual, to cancelt...

18 MODEL 54e pH/ORP SECTION 4.0 CALIBRATION This procedure is followed if Autocal is set to "Manual" in Section 5.9.Buffer values are entered manually and no stabilization check is used. 1. From the main display, press any key to obtain the main menu. Withthe cursor on "Calibrate", p...

4.4 SINGLE-POINT pH CALIBRATION MODEL 54e pH/ORP SECTION 4.0 CALIBRATION A single-point calibration (standardization) should always be performedfollowing a two-point calibration. It may have to be performed as often asonce a day to ensure that the sensor is accurately reading pH. As theglass electro...

20 4.5 TEMPERATURE COMPENSATION OPTIONS 4.6 pH SLOPE ADJUSTMENT MODEL 54e pH/ORP SECTION 4.0 CALIBRATION Automatic Temperature Compensation is a standard option for pH equip-ment and is used in virtually all pH measurement situations. If compen-sation is not desired, the temperature signal from the ...

4.7 HOLD MODE 4.8 TRIM OUTPUTS MODEL 54e pH/ORP SECTION 4.0 CALIBRATION Placing the Controller on Hold for Maintenance. Before performing main-tenance or repair of the sensor, the Controller can be placed in hold (referto Section 5.6 to enable this feature) to prevent process upsets while thereading...

22 MODEL 54e pH/ORP SECTION 5.0 SOFTWARE CONFIGURATION SECTION 5.0 SOFTWARE CONFIGURATION This section contains the following: • An introduction to using the configuration process • A List of Settings for the controller • Step-by-step instructions and explanations for each parameter on the List INTR...

26 MODEL 54e pH/ORP SECTION 5.0 SOFTWARE CONFIGURATION 5.1 CHANGING ALARM SETPOINTS This section describes how the three alarm setpoints can be changed.Move the cursor down by pressing the arrow key. 1. From the main menu, move the cursor down to "Program" and pressEnter (F4). On the next di...

28 MODEL 54e pH/ORP SECTION 5.0 SOFTWARE CONFIGURATION 5.3 CHANGING OUTPUT SETPOINTS (NORMAL ONLY) This section describes how the 4 (or 0) to 20 mA current outputs can bereranged. Note that the current outputs can be configured to representpH, temperature, glass impedance, or reference impedance. Se...

Test output 1: 10.00 mA Esc Test Test output 1: 10.00 mA S i m u l a t i n g o u t p u t 1 Exit Edit MODEL 54e pH/ORP SECTION 5.0 SOFTWARE CONFIGURATION 5.4 TESTING OUTPUTS AND ALARMS This section describes how the current outputs and alarm relays can bemanually set for the purposes of checking devi...

30 MODEL 54e pH/ORP SECTION 5.0 SOFTWARE CONFIGURATION 5.4 TESTING OUTPUTS AND ALARMS (continued) 3b. The alarm relay is now being simulated. In the example to the left, alarm 1 has been set to Open. This means that the relay is not ener-gized (i.e. off). The alarm will remain open until either Exit...

3. Menu Item Options Output 1 units mA/% Output 2 units mA/% Language English/Français/Español/Deutsch/Italiano Press the arrow key three times to access this screen. The current out-puts can be displayed as milliamps or as percent of full scale. The defaultis mA. To change any of these items, use t...

32 MODEL 54e pH/ORP SECTION 5.0 SOFTWARE CONFIGURATION 5.5 CHOOSING DISPLAY OPTIONS (CONTINUED) 4. This screen allows you to choose the items displayed on the third lineleft and right of the main display screen. The process temperatureand output 1 value (in mA or %) are always shown on line 2 of the...

MODEL 54e pH/ORP SECTION 5.0 SOFTWARE CONFIGURATION 5.6 CHANGING OUTPUT PARAMETERS This section describes the options available for configuration of the out-puts. Each output can be configured to represent pH (or ORP/Redox, seeAppendix A), temperature, glass impedance, or reference impedance. Inaddi...

MODEL 54e pH/ORP SECTION 5.0 SOFTWARE CONFIGURATION "Proportional" is short for Proportional Band and indicates the range over which control is being used. It is the opposite of the process gain.Smaller values provide tighter control. "Integral" is the number of seconds over which de...

36 MODEL 54e pH/ORP SECTION 5.0 SOFTWARE CONFIGURATION 5.7 CHANGING ALARM PARAMETERS This section describes the options available for configuration of thealarms. Alarms 1, 2, and 3 can be activated on pH (or ORP/Redox, seeAppendix A), or temperature. One of these alarms can be setup as a feedlimit t...

MODEL 54e pH/ORP SECTION 5.0 SOFTWARE CONFIGURATION 5.7 CHANGING ALARM PARAMETERS (continued) Alarm Control Parameters Alarm Setup Parameters(for Normal Alarms only) 3. Menu Item Options Activation Method Process/Temperature Control Mode Normal/TPC Alarms 1, 2, and 3 can each be configured with the ...

Feed Limit Timer Setup Feed limit: Disable Timeout: 3600 sec Exit Edit 6. Menu Item Options Feed limit (timer) Disable/AL1/AL2/AL3 Timeout 0-10,800 sec The controller allows configuring one of the alarms as a Feed Limittimer. The Feed Limit timer prevent overfeeding of chemical reagentby automatical...

40 Interval Timer Setup MODEL 54e pH/ORP SECTION 5.0 SOFTWARE CONFIGURATION 5.7 CHANGING ALARM PARAMETERS (continued) 7. Menu Item Options Timer (enable) Disable/AL1/AL2/AL3 Interval 0-999.9 hr Repeats 1-60 On time 1-2999 sec Off time 0-2999 sec Recovery 0-999 sec The Interval Timer is used to autom...

42 MODEL 54e pH/ORP SECTION 5.0 SOFTWARE CONFIGURATION 5.8 ON-LINE DIAGNOSTICS SETUP 2. Menu Item Option Related Fault Messages Diagnostics On/Off Glass impedance 1-2000 M Ω “Aged glass warning” high setpoint (0 disables) Glass impedance 1-900 M Ω “Cracked glass low setpoint (0 disables) failure” Re...

MODEL 54e pH/ORP SECTION 5.0 SOFTWARE CONFIGURATION 5.8 ON-LINE DIAGNOSTICS SETUP (continued) 5.9 AUTO CALIBRATION SETUP 2. Menu Item Options Autocal Standard/ DIN 19267/ Manual Stabilize pH 0.01-0.50 pH Stabilize time 0-30 sec The values now being used by the controller are displayed. To changeany ...

45 MODEL 54e pH/ORP SECTION 6.0 THEORY OF OPERATION SECTION 6.0 THEORY OF OPERATION 6.1 THE pH SENSOR ASSEMBLY The pH measurement is accomplished by means of ameasuring electrode (usually made of glass) whichdevelops a potential directly related to the hydrogen ionconcentration (pH) of the solution ...

MODEL 54e pH/ORP SECTION 6.0 THEORY OF OPERATION 6.8 CONTROLLER MODE PRIORITY Your Model 54e pH/ORP can function in different modesdepending on both how it is configured, what processconditions exist, and actions an operator may havemade. To reconcile these possible modes, there is a setpriority tha...

54 MODEL 54e pH/ORP SECTION 7.0 SPECIAL PROCEDURES AND FEATURES SECTION 7.0 SPECIAL PROCEDURES AND FEATURES This section covers features of the Model 54epH/ORP controller that are used less frequently.Use of the features outlined in the appendix isoptional. Special procedures and features outlined i...

MODEL 54e pH/ORP SECTION 7.0 SPECIAL PROCEDURES AND FEATURES 7.2 CONFIGURING SECURITY Security clearance is required at the following security "gates". Userswithout the security code will only be able to use the features indicated inparentheses: I. Lock out all access (read main screen only)...

56 MODEL 54e pH/ORP SECTION 7.0 SPECIAL PROCEDURES AND FEATURES 7.3 SOLUTION TEMPERATURE COMPENSATION This section is for advanced users only. It explains how to input values for: • the isopotential pH and • the temperature coefficient for solution temperature compensation. 1. Beginning from the mai...

58 MODEL 54e pH/ORP SECTION 8.0 TROUBLESHOOTING SECTION 8.0 TROUBLESHOOTING The Model 54e pH/ORP automatically searches forfault conditions that would cause an error in the meas-ured pH reading. If such a condition occurs, the currentoutputs and alarm relays will act as configured inSection 5.6 and ...

MODEL 54e pH/ORP SECTION 8.0 TROUBLESHOOTING 8.1 DISPLAYING DIAGNOSTIC VARIABLES This section explains how these helpful diagnostics can be viewed: 1. Electrode input in mV: Used to check if the signal produced by the sensor is within acceptable limits (see Figure 8-1 for typical sensormV response a...

MODEL 54e pH/ORP SECTION 8.0 TROUBLESHOOTING 8.2 TROUBLESHOOTING GUIDELINES NOTE To clear any Fault message, press the 2 key. If no specific error message is being displayed, the fol-lowing procedure can identify the specific problem. The only sure way to diagnose sensor related condi-tions is to is...

MODEL 54e pH/ORP SECTION 8.0 TROUBLESHOOTING 8.3 REPLACEMENT PARTS PART NUMBER DESCRIPTION 23540-05 Enclosure, Front with Keyboard 23848-00 Power Supply Circuit Board Shield 23849-00 Half Shield, Power Supply 23854-00 PCB, CPU for Back-lit Display 23969-00 PCB, Calibrated board set, 115/230 Vac 2396...

70 MODEL 54e pH/ORP SECTION 9.0 RETURN OF MATERIAL SECTION 9.0 RETURN OF MATERIAL 9.1 GENERAL. To expedite the repair and return of instruments, proper communication between the customer and the factory isimportant. Before returning a product for repair, call 1-949-757-8500 for a Return Materials Au...

MODEL 54e pH/ORP APPENDIX A ORP CONFIGURATION APPENDIX A ORP CONFIGURATION QUICK STARTUP (ORP) The Model 54e pH/ORP controller comes pre-pro-grammed by the factory as a pH controller. In orderto perform a quick startup as an ORP controller, thecontroller must first be switched to the pre-configuredO...

MODEL 54e pH/ORP APPENDIX A ORP CONFIGURATION A.1 ORP CALIBRATION ORP Calibration consists of a single standardize adjustment that changesthe zero offset of the controller. This procedure can be done with the ORPsensor in an ORP standard solution or with the sensor left in the processand a laborator...

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