Emerson 54e pH/ORP instruction manual Timer Disable, On time 120 sec, Recovery 600 sec

Page 46

MODEL 54e pH/ORP	SECTION 5.0
	SOFTWARE CONFIGURATION

5.7 CHANGING ALARM PARAMETERS (continued)

Interval Timer Setup

Timer: Disable

Timer: Time activated

Interval: 24.0 hr

ExitEdit

Repeats: 1

On time: 120 sec

Off time: 1 sec

ExitEdit

On time: 120 sec

Off time: 1 sec

Recovery: 600 sec

ExitEdit

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 automate a relay closure sequence based on a time interval. See Figure 5-2 for examples. The original controller configuration disables the timer, so the first step in using the timer is to select an alarm relay (1, 2, or 3), which will enable the feature. All 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.

NOTE

The alarm relay selected for Interval Timer cannot be used for other purposes such as a process or tempera- ture alarm. While a timer sequence is occurring, both current outputs will be placed in hold (even if hold was not enabled in Section 5.6) and the other 2 alarms will be placed in their default states.

"Interval" determines how often the timer sequence will run. When set to 24 hours, the sequence will run daily.

"Repeats" is the number of times the relay will activate during the sequence.

"On time" is the number of seconds the relay will stay closed (on) during each repeat.

"Off time" is the number of seconds the relay will stay open (off) between each repeat.

"Recovery" is a waiting period after the activation sequence that allows sensor readings to return to normal before outputs and alarm relays are taken out of the hold/default states.

For more on the Interval Timer, see Section 6.0, Theory of Operation.

NOTE

The timer can be used for periodic chemical or mechan- ical cleaning of a coated sensor. If high reference imped- ance is used to initiate the timer cycle, the reference impedance set point in Section 5.8 is used.

40

Image 46

Contents PH/ORP Hart Analyzer/Controller Model 54e pH/ORPEssential Instructions Electrical Shock HazardPage Model 54E PH/ORP Microprocessor Analyzer Description and SpecificationsSection Title List of Tables Appendix TitleTable No Title Table of Contents List of Figures About This DocumentGeneral Description Section Description and SpecificationsDescription of Controls Relative Humidity 95%, non condensing Alarms Specifications Physical Specifications GeneralPower Current OutputsAnalyzer Specifications @ 25C Recommended SensorsCode Options Ordering InformationPart 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 Compatibility PH Sensor WiringTions will Result in Controller MALFUNC- Tion 454EPH01 Cable Dressing Final Electrical Check Wiring to Model Section Calibration IntroductionAdjust 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 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/pHOutput trim Hold ModeTrim 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 ParametersRange 4-20 mAl Fault 22.00 mARange 4-20 mA Hold feature setup Fault 22.00mAOutput 2 control Output 2 setup Hold Disable featureAlarm 3 control AlarmsInterval 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 SetupRecovery 600 sec Timer DisableOn time 120 sec Interval Timer Examples Diagnostics Off DiagnosticsZero 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 OperationTypical set points Interval TimerSee .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 Gain Plus Integral Reset Proportional Mode GainControl Loop Adjustment and Tuning Process Reaction Curve Method Process Reaction CurvePID Control Password Protection Section Special Procedures and FeaturesLevel 1 3 Password Privileges Custom Curve Configuring SecuritySecurity Lock allTemp coeff +.000 Solution Temperature CompensationSensor 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 TemperaturePreamp in a junction box Figure Preamplifier Troubleshooting ProcedureController 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