Emerson 54e pH/ORP instruction manual Alarms, Alarm 3 control, Interval timer

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MODEL 54e pH/ORP

SECTION 5.0

 

SOFTWARE CONFIGURATION

5.7 CHANGING ALARM PARAMETERS

Outputs

Alarms

Security

This section describes the options available for configuration of the alarms. Alarms 1, 2, and 3 can be activated on pH (or ORP/Redox, see Appendix A), or temperature. One of these alarms can be setup as a feed limit timer and another alarm can be dedicated as an interval timer. Alarm 4 is reserved as a fault alarm.

 

 

 

 

Alarms that activate on pH (or ORP/Redox) or temperature can be con-

 

Exit

Enter

figured as on/off (normal), or TPC. These modes are described below.

 

 

 

 

The two alarm modes have several configuration options that are

 

 

 

 

described in detail in this section.

 

 

 

 

1. Beginning from the main menu, move the cursor down to "Program"

 

 

 

 

and press Enter 4. From the program menu, move the cursor down

 

 

 

 

using the arrow key b to highlight "Configure" and press Enter 4.

 

 

 

 

Use the arrow key again to highlight "Alarms" (as shown on the left)

 

 

 

 

and press Enter 4.

 

 

 

 

 

 

 

 

 

2. There are 9 menu headers that relate to alarms. Alarms 1, 2, and 3

 

Alarm 1 control

 

each have a control header and a setup header. Alarm 4 has a sim-

 

 

 

 

 

 

 

 

ple setup header. Configuration of a feed limit timer and an interval

 

Alarm 1 setup

 

 

 

timer is also described here.

 

Alarm 2 control

 

To access each header, highlight the desired item and press the Enter

 

 

 

 

4 key. To select another header, use the arrow keys. The bottom

 

Exit

Enter

menu header will only be highlighted if the end of the menu has been

 

 

 

 

reached.

 

 

 

 

NOTE

 

 

 

 

 

 

 

 

Alarm 2 setup

Alarm 3 control

Alarm 3 setup

ExitEnter

Alarm 4 setup

Feed limit timer

Interval timer

ExitEnter

36

Always configure the control parameters BEFORE mak- ing changes in the alarm setup. Changes in the output setup in step 4 will depend on the options that have been selected in step 3.

Alarm Modes:

Normal: Alarm turns on when setpoint is exceeded and turns off when the reading no longer exceeds the setpoint (simple high alarm example).

Fault: Alarm turns on when controller detects a fault condition.

TPC: Alarm turns on for a time that depends on what the reading is. The time it stays on is proportional to how far the reading is from the 0% On Time point, also called the setpoint. (time proportional control)

TPC: Alarm turns on for a time that depends on what the reading is. The time it stays on is proportional to how far the reading is from the setpoint (time proportional control). In addition, the "on time" can be dependent on how long the reading has exceeded the setpoint (inte- gral control) and how fast the reading has actually changed (deriva- tive control).

Feed limit timer: When the alarm has been energized (on) for a long period, it automatically turns off to prevent overfeeding of chemicals.

Interval timer: Alarm is programmed to activate at various times, usu- ally to provide automated cleaning. Useful for spray cleaning and/or automatic retraction of sensors in processes.

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Contents PH/ORP Hart Analyzer/Controller Model 54e pH/ORPEssential Instructions Electrical Shock HazardPage Description and Specifications Model 54E PH/ORP Microprocessor AnalyzerSection Title Appendix Title List of TablesTable No Title Table of Contents List of Figures About This DocumentSection Description and Specifications General DescriptionDescription of Controls Relative Humidity 95%, non condensing Alarms Specifications Physical Specifications GeneralPower Current OutputsAnalyzer Specifications @ 25C Recommended SensorsOrdering Information Code OptionsPart NO. Description Locating the Controller Section InstallationMechanical Installation Unpacking and InspectionPanel Mounting Analog Output Wiring Section WiringPower Input Wiring Alarm Relay Output Wiring454EPH02 PH Sensor Wiring PH Sensor CompatibilityTions will Result in Controller MALFUNC- Tion 454EPH01 Cable Dressing Final Electrical Check Wiring to Model Section Calibration IntroductionHold Mode Off Adjust temp 25.1 CTemperature Calibration Autocal buffer Buffer 1 -- WaitAutomatic TWO-POINT Calibration Auto buffer cal done Use the arrow keys to select the correct bufferCalibration Notes Pt calibration done Calibrate pointPt 04.00pH 25C Manual TWO-POINT CalibrationStandardize 7.01 pH SINGLE-POINT pH CalibrationOutput trim Temperature Compensation OptionsTemp comp Auto 59.16 mV/pHHold Mode Output trimTrim Outputs Section Software Configuration PH Settings ListRanges Factory Settings User Settings Diagnostics Section Outline of Menu Levels Simulate tests Alarm High 14.00pHChanging Alarm Setpoints Setpoint 07.00 pHSetpoint + 06.90 pH Setpoint 7.00 pH4mA 0.00 pH 20mA 2.00 pH Changing Output Setpoints PID onlyMA 0.00 pH 20 mA 14.00 pH Output 1 12.00 mA OutputOutput MA +00.00 pHTesting Outputs and Alarms Alarm setpoints Output setpointsTest output Test alarm Simulated testsTest alarm 1 Open Test alarm 1 OpenDisplay right AL2 Measure pHDisplay contrast Timeout On Security CautionChanging Output Parameters Control ModeDisplay Output Control ParametersFault 22.00 mA Range 4-20 mAlRange 4-20 mA Hold feature setup Fault 22.00mAOutput 2 control Output 2 setup Hold Disable featureAlarms Alarm 3 controlInterval timer Hysteresis 0.01 pH Delay 0 sec Alarm LowSetpoint 0.01 pH Delay 0 sec Relay Default NoneTime period 30 sec Relay default NoneSetpoint +07.00 pH URV 2.00 pHTimeout 3600 sec Alarm FaultFeed limit Disable Alarm 4 SetupTimer Disable Recovery 600 secOn time 120 sec Interval Timer Examples Diagnostics Diagnostics OffZero offset 60 mV Autocal Standard DiagnosticsAuto Calibration Setup Stabilize pH 0.01 pH Stabilize time 10 secAuto Calibration Setup Standard BuffersContinuous Sensor Diagnostics Section Theory of OperationInterval Timer Typical set pointsSee .8 for instructions on chang- ing these setpoints Alarm Relays Time Proportional Control TPC Mode CodeNormal Mode Analog OutputsCondition Definitions Controller Mode PriorityController Mode Priority Chart Action DefinitionsPID Control PID Control Mode CombinationsPID Control Code Measurement and Set Point Feedback ControlProportional Mode Gain Proportional Gain Plus Integral ResetControl Loop Adjustment and Tuning Process Reaction Curve Method Process Reaction CurvePID Control Section Special Procedures and Features Password ProtectionLevel 1 3 Password Privileges Custom Curve Configuring SecuritySecurity Lock allSolution Temperature Compensation Temp coeff +.000Sensor iso 07.00 pH Operate iso +07.00 pH Section Troubleshooting Troubleshooting is easy as 1, 2, 3…Diagnostic Messages Diagnostic Messages Description of problemQuick Troubleshooting Guide Symptom ActionDiagnostic Variables Theoretical pH vs. Millivolt Values at 25C 77F Troubleshooting Procedure Troubleshooting GuidelinesTemperature Compensation Circuit Ohms Ambient TemperaturePreamplifier Troubleshooting Procedure Preamp in a junction box FigureController preamp check Figure Junction Box Preamplifier Check Troubleshooting Guide No PowerCoated glass electrode Clean with soft cloth and clean water Password protected Replacement Parts Part Number DescriptionSection Return of Material Warranty RepairNON-WARRANTY Repair GeneralAppendix a ORP Configuration Quick Startup ORPTable A-1. ORP Settings List Item Choices ORP Settings User SettingsChoices ORP Settings User Settings Diagnostics SectionOutput setpoints Simulated testsStandardize 400 mV ORP CalibrationReturn of Materials Request Sensor or Circuit Board onlyWarranty Return of MaterialSpecifications subject to change without notice
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