Emerson 54e pH/ORP Alarm Low, Setpoint 0.01 pH Delay 0 sec, Hysteresis 0.01 pH Delay 0 sec

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MODEL 54e pH/ORP							SECTION 5.0
							SOFTWARE CONFIGURATION
5.7 CHANGING ALARM PARAMETERS (continued)

Alarm Control Parameters				3.		Menu Item	Options
						Activation Method	Process/Temperature

						Control Mode	Normal/TPC
	Activation Method					Control Mode	Normal/TPC
	Activation Method
	Control Mode				Alarms 1, 2, and 3 can each be configured with the options above.

					The default options are that all three alarms are Process (pH or
					ORP/Redox), and Normal (not TPC). This is a common configura-
					tion and may not require changes. If no changes are desired, skip to
	Exit		Enter		step 4a.
					To make changes in these parameters, highlight the desired menu
					header and press Enter 4. The value now being used is displayed
	Activate: Process
	Activate: Process				and the F4 key can now be pressed to Edit the item. Once Edit has
					been pressed, change the item as needed and then press Save 4 to
					store the value. Repeat for the other output and/or items as needed.
	Exit		Edit

Alarm Setup Parameters (for Normal Alarms only)

Alarm: Low

Setpoint: 0.01 pH

Delay: 0 sec

ExitEnter

Hysteresis: 0.01 pH

Delay: 0 sec

Relay Default: None

ExitEnter

4a.		Menu Item	Options
		Alarm (action)	Low/High/Off
		Setpoint	-1400 to1400 mV, -2.00 to 20.00 pH, 0 to 200°C.
		Hysteresis	-2.00 to 20.00 pH, 0 to 10°C.

		Delay	0-99 sec
		Relay default	None/Close/Open

These parameters can be adjusted by highlighting the desired item and pressing the Edit 4 key. Once Edit has been pressed, change the item as needed and then press Save 4 to store the value.

"Alarm action" determines whether alarm will activate when the reading exceeds the setpoint (high alarm) or when it drops below the setpoint (low action). It can also be turned off (i.e. not used).

"Hysteresis" is a deadband that prevents deactivating a relay until the reading has dropped below the setpoint minus the hysteresis amount (high alarm example).

"Delay" will delay activation (and deactivation) of the relay for a cer- tain number of seconds. Larger delays can reduce relay chatter.

"Relay Default" determines how the relay will act if there is a fault or hold condition. Each alarm can be forced on (Close), off (Open) or can remain unchanged (None). The factory configuration is "None".

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Contents Model 54e pH/ORP PH/ORP Hart Analyzer/ControllerElectrical Shock Hazard Essential InstructionsPage Model 54E PH/ORP Microprocessor Analyzer Description and SpecificationsSection Title List of Tables Appendix TitleTable No Title About This Document Table of Contents List of FiguresGeneral Description Section Description and SpecificationsDescription of Controls Current Outputs Specifications Physical Specifications GeneralPower Relative Humidity 95%, non condensing AlarmsRecommended Sensors Analyzer Specifications @ 25CCode Options Ordering InformationPart NO. Description Unpacking and Inspection Section InstallationMechanical Installation Locating the ControllerPanel Mounting Alarm Relay Output Wiring Section WiringPower Input Wiring Analog Output Wiring454EPH02 PH Sensor Compatibility PH Sensor WiringTions will Result in Controller MALFUNC- Tion 454EPH01 Cable Dressing Final Electrical Check Wiring to Model Introduction Section CalibrationAdjust temp 25.1 C Hold Mode OffTemperature Calibration Buffer 1 -- Wait Autocal bufferAutomatic TWO-POINT Calibration Use the arrow keys to select the correct buffer Auto buffer cal doneCalibration Notes Manual TWO-POINT Calibration Calibrate pointPt 04.00pH 25C Pt calibration doneSINGLE-POINT pH Calibration Standardize 7.01 pH59.16 mV/pH Temperature Compensation OptionsTemp comp Auto Output trimOutput trim Hold ModeTrim Outputs PH Settings List Section Software ConfigurationRanges Factory Settings User Settings Diagnostics Section Outline of Menu Levels Setpoint 07.00 pH Alarm High 14.00pHChanging Alarm Setpoints Simulate testsChanging Output Setpoints PID only Setpoint 7.00 pH4mA 0.00 pH 20mA 2.00 pH Setpoint + 06.90 pHMA +00.00 pH OutputOutput MA 0.00 pH 20 mA 14.00 pH Output 1 12.00 mASimulated tests Alarm setpoints Output setpointsTest output Test alarm Testing Outputs and AlarmsTest alarm 1 Open Test alarm 1 OpenMeasure pH Display right AL2Security Caution Display contrast Timeout OnOutput Control Parameters Control ModeDisplay Changing Output ParametersRange 4-20 mAl Fault 22.00 mARange 4-20 mA Hold Disable feature Fault 22.00mAOutput 2 control Output 2 setup Hold feature setupAlarm 3 control AlarmsInterval timer Relay Default None Alarm LowSetpoint 0.01 pH Delay 0 sec Hysteresis 0.01 pH Delay 0 secURV 2.00 pH Relay default NoneSetpoint +07.00 pH Time period 30 secAlarm 4 Setup Alarm FaultFeed limit Disable Timeout 3600 secRecovery 600 sec Timer DisableOn time 120 sec Interval Timer Examples Diagnostics Off DiagnosticsZero offset 60 mV Stabilize pH 0.01 pH Stabilize time 10 sec DiagnosticsAuto Calibration Setup Autocal StandardStandard Buffers Auto Calibration SetupSection Theory of Operation Continuous Sensor DiagnosticsTypical set points Interval TimerSee .8 for instructions on chang- ing these setpoints Time Proportional Control TPC Mode Code Alarm RelaysAnalog Outputs Normal ModeAction Definitions Controller Mode PriorityController Mode Priority Chart Condition DefinitionsMeasurement and Set Point Feedback Control PID Control Mode CombinationsPID Control Code PID ControlProportional Gain Plus Integral Reset Proportional Mode GainControl Loop Adjustment and Tuning Process Reaction Curve Process Reaction Curve MethodPID Control Password Protection Section Special Procedures and FeaturesLevel 1 3 Password Privileges Lock all Configuring SecuritySecurity Custom CurveTemp coeff +.000 Solution Temperature CompensationSensor iso 07.00 pH Operate iso +07.00 pH Troubleshooting is easy as 1, 2, 3… Section TroubleshootingDiagnostic Messages Description of problem Diagnostic MessagesSymptom Action Quick Troubleshooting GuideDiagnostic Variables Theoretical pH vs. Millivolt Values at 25C 77F Ohms Ambient Temperature Troubleshooting GuidelinesTemperature Compensation Circuit Troubleshooting ProcedurePreamp in a junction box Figure Preamplifier Troubleshooting ProcedureController preamp check Figure Junction Box Preamplifier Check No Power Troubleshooting GuideCoated glass electrode Clean with soft cloth and clean water Password protected Part Number Description Replacement PartsGeneral Warranty RepairNON-WARRANTY Repair Section Return of MaterialQuick Startup ORP Appendix a ORP ConfigurationItem Choices ORP Settings User Settings Table A-1. ORP Settings ListDiagnostics Section Choices ORP Settings User SettingsSimulated tests Output setpointsORP Calibration Standardize 400 mVSensor or Circuit Board only Return of Materials RequestReturn of Material WarrantySpecifications subject to change without notice