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HC-220 PID Controller

Operation and Maintenance Manual

HC-220 Rev. 11/1/18

The information contained in this manual was current at the time of printing. The most current versions of all
Hydro Instruments manuals can be found on our website:

www.hydroinstruments.com

Содержание HC-220

Страница 1: ...on and Maintenance Manual HC 220 Rev 11 1 18 The information contained in this manual was current at the time of printing The most current versions of all Hydro Instruments manuals can be found on our website www hydroinstruments com ...

Страница 2: ...2 VII Reference Terms 13 VIII Troubleshooting 15 Flow Charts and Drawings Figure 1 Configuration Mode Flow Chart 5 Figure 2 Hidden Screens 6 Figure 3 Operation Mode Flow Chart 10 Figure 4 Circuit Board Drawing 16 RIGHT TO REVISE Hydro Instruments reserves the right to make engineering revisions and improvements at any time Please contact Hydro Instruments if there is any discrepancy between the li...

Страница 3: ... rate 2 Switching Between Modes The Configuration Mode is password protected The password is 220 This can be entered by using the and buttons a Operation Mode This is the HC 220 standard mode This can be reached from either of the other two modes by repeatedly pressing the up arrow key b Configuration Mode This mode is accessed from the Operation Mode by pressing the down arrow key until the passw...

Страница 4: ...to be monitored and controlled by a computer See Hydro Instruments Modbus Communication Setup document for further details II CONTROL FEATURES 1 Keypad Operation The keypad is used in all three modes of the HC 220 Generally the keys are used as outlined here below However detailed instructions will follow a keys These keys are used to cycle through the various display screens These keys will be re...

Страница 5: ...2 Output Units KG H KG H GPH GPM GPD LPM LPH PPD GR H 000 0 00 00 0 000 00000 Output Decimal Posn 000 0 Output Full Scale 10 0 KG H Out Gas Feed Type Cl 2 OUT Alarm Delay Time 10 secs Output Relay 1 Usage Normal Alarms Normal Alarms Auto Off Manl On Output Relay 2 Usage Normal Alarms Normal Alarms Auto Off Manl On ALM AI1 Cal 4 mA 20 mA AI2 Cal 4 mA 20 mA Input Value Was Changed A01 Cal 4mA 803 20...

Страница 6: ...LO 24 9 PO1 0 0KG H Set Point Res ORP 2 00 PPM Set PO1 Valve 0 0KG H Alarm Status None Set Dosage 1 00 HOLD HOLD AUTO FLO 24 9 PO1 0 0KG H Set Dosage 1 00 Alarm Status None MANL FLO 24 9 PO1 0 0KG H Set PO1 Valve 0 0KG H Alarm Status None Set Dosage 1 00 HOLD HOLD Flow Pacing AUTO MANL Residual ORP AUTO MANL Compound Loop AUTO MANL Dual Input Feed Fwd AUTO MANL AUTO RES 1 24 PPM PO1 0 0KG H AUTO F...

Страница 7: ... 1e Enter Full Scale Flow Value xxxx NOTE Calibrates Flow Input signal from zero to this Full Scale value 1f Enter Threshold Value In the units from point b above NOTE This parameter should be set at zero 0 unless you do not want the valve to respond until this threshold value is reached by the 4 20mA flow input signal The valve will then scale the input from threshold to full scale as 0 100 of in...

Страница 8: ...will automatically resume considering the re sidual signal NOTE This feature is for use in Compound Loop Control only This feature is included in units shipped after January 2009 3c Fixed or Variable Lag Time Selecting Fixed lag will keep the lag time constant at all times Selecting Variable lag will cause the program to constantly adjust the lag time based on the current flow value and the Flow a...

Страница 9: ...rated by Hydro Instruments Should the inputs need to be recalibrated the following steps explain how to calibrate the AI1 through AI4 analog inputs 1 Input Electrical Calibration AI1 through AI4 are calibrated electrically 2 Output Electrical Calibration AO1 and AO2 4 20mA are electrically calibrated NOTE Navigate to the HIDDEN OUT screens on Figure 1 to electrically calibrate the four input chann...

Страница 10: ...H MANL FLO 24 9 PO1 0 0KG H Set Point Res ORP 2 00 PPM Set PO1 Valve 0 0KG H Alarm Status None Enter Password 220 MANL AUTO MANL AUTO 0 01 increments increments of 1 0 1 increments Set Dosage 1 00 0 01 increments Compound Loop MANL AUTO RES 1 24 PPM PO1 0 0KG H Set Point Res ORP 2 00 PPM Alarm Status None Enter Password 220 AUTO MANL increments of 1 0 01 increments Residual ORP AUTO MANL RES 1 24 ...

Страница 11: ...esidual ORP or pH input only 2a Select Automatic or Manual Control Mode Choose AUTO MANL Use to change selection DISPLAY PV2 PV2 Reading PPM MGL mV pH DISPLAY PO1 Chemical Feed Rate PPD GPH 2b Select the Residual ORP pH Set Point which is desired PV2 Set Point SV2 Adjustable with and keys 2c In Manual Mode the feed rate will be displayed and can be adjusted with and keys DISPLAY PO1 Chemical Feed ...

Страница 12: ...s ORP Signal Loss PV2 Signal below 3 mA Valve Close or Hold Position Residual ORP Low Set Point PV2 Signal below set point None Residual ORP High Set Point PV2 Signal above set point None Compound Loop Flow Signal Loss PV1 Signal below 3 mA Switch to Residual ORP Condn 1 Compound Loop Low Flow PV1 Signal below set point None Compound Loop Res ORP Signal Loss PV2 Signal below 3 mA Switch to Flow Pa...

Страница 13: ...gnal 8 Integral A factor used in calculation of adjustments to chemical feed rate in both Residual Other and Compound Loop Control This value ranges between 0 and 100 Essentially the program makes a calculation of how much the chemical feed rate needs to be adjusted in order to reach set point and this factor The integral setting determines what percentage of this adjustment will be done in each s...

Страница 14: ...thod the user indicates the desired Residual or Other set point and the HC 220 will automatically adjust chemical feed rate to maintain that set point 21 Set Point In this manual this refers to a desired value for the Residual or Other reading It is the specific Residual or Other reading that is chosen by the user and that the user would like the system to maintain 22 Threshold In this manual this...

Страница 15: ...ess b Check Items 1a 1d above If actual chemical feed remains low then check the suggestions in item 1a through 1d above 2 Failure to reach set point in Residual ORP or Compound Loop Control a Lag Times The lag times set in section III 2 m or III 3 a through III 3 c may be too long for the system b Integral The integral value set in section III 2 l may be too low If it is too low then the HC 220 w...

Страница 16: ...16 FIGURE 4 HC 220 Controller Electronics Date 2018 10 24 v1 Dwg No HC 220 CONTROLLER HC 220 CONTROLLER ...

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