Omega PHCN-962 User Manual Download Page 41 | Manualshive

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Appenclix 3 – hysteresis band

Simple Explanation on the Function of Hysteresis Band

The controller relay activates when the set-point is reached. In the reverse direction, it closes.

Relay continues to be active till the value reaches the amount set by hysteresis band.

4.0

4.5

9.5

10.0

7.0

RELAY OFF

HYSTERESIS BAND
(DEFAULT = 0.5 pH)

FORWARD DIRECTION

REVERSE DIRECTION

SP1

SP2

RELAY ON

SP1 Set to LO
SP2 Set to HI

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Summary of Contents for PHCN-962

Page 1: ...1...

Page 2: ...2...

Page 3: ...series controller transmitter The information presented in this manual is subject to change without notice as improvements are made and does not represent a commitment of part of OMEGA ENGINEERING OM...

Page 4: ...skilled trained or authorized person should carry out installation setup and operation of the instrument Before powering up the unit make sure that power source is connected to is as specified in the...

Page 5: ...TALLATION 15 PHCN 962 CONNECTION DIAGRAM 16 MEASUREMENT MODE 17 4 CALIBRATION MODE 18 4 1 ENTERING CALIBRATION MODE 18 4 2 pH CALIBRATION 19 4 3 ORP mV CALIBRATION 22 5 SET UP MODE 23 ENTERING SET UP...

Page 6: ...ATION PROTOCOL 34 6 TECHNICAL PARAMETERS 38 6 1 TECHNICAL PARAMETERS FORM 38 6 2 PARAMETER SETTING AND FACTORY PRELIMINARY VALUE 39 APPENCLIX 2 pH TEMPERATURE CORRESPONDING TO pH BUFFER SOLUTION 40 AP...

Page 7: ...nts are appendix information If they are neglected it will cause low efficient and even losing products Instruction manual should be kept accessible within the person who use pH ORP controllers transm...

Page 8: ...uppliers do not bear responsibility for the damage and lose caused by modifying instruments without permission Clients should bear all the risks This instrument has a protection level of IP65 Please u...

Page 9: ...can ensure that the instrument can be working normally Please refer to procedures of Item 5 1 pH measured value can make offset adjustment adjusting scope 2PH so that users can calibrate online Please...

Page 10: ...t tandem transmitting rate and ID NO by itself Maximum 100 instruments can be connected with computer to provide convenience management for terminating machine 2 2 MEASUREMENT AND CONTROL SYSTEM Typic...

Page 11: ...11 2 3 APPEARANCE PHCN 962 Wall hanging installation...

Page 12: ...us MEA 7 00 PH SPI ATC 250 O C SP2 CAL SET ERR Mode Indication MEA measurement mode SET set up mode CAL calibration mode Status Indication HOLD relay actions and electric current output are hold ATC a...

Page 13: ...in setting mode Set parameter and value If hold on pressing value changing will be quicker 2 3 3 LED Induction Relay Induction SP1 SP2 LED show relevant working status of relays SP1 SP2LED light on sh...

Page 14: ...TC O C SP2 I2 00 25 0 XXX HOLD HOLD HOLD HOLD HOLD HOLD HOLD SPI HOLD Sp2 HOLD HOLD HOLD HOLD HOLD HOLD P02 OFFSET SETUP P04 CONTROL MODE P05 RELAY1 SETUP P06 RELAY2 SETUP P07 ALARM RELAY SETUP P08 CO...

Page 15: ...15 3 INSTALLATION AND ACCESSORY INSTALLATION Wall hanging installation 113mm 122mm 151mm 4 449 4 803 5 945...

Page 16: ...between 2 and 3 19 Electric source input 110V 220V alternating current 4 COM short circuit with 5 under normal status pH ORP input terminal 5 pH negative terminal Jodhpurs JP2 220V 6 REF Jodhpurs JP1...

Page 17: ...f ORP under ORP measurement mode Annunciator at the left lower side of the display show the value of transmitting output electric circuit which as the way that users calibrate the output electric circ...

Page 18: ...ne ESC ENT ENT ENT ENT ENT ENT 1 Press once under measurement mode and enter into function form for password input of calibration mode 2 After entering function form of calibration password input LCD...

Page 19: ...h should be calibrated 3 Put electrode into the first standard buffer solution You should put temperature electrode into the same solution under the automatic temperature compensation mode As the same...

Page 20: ...er display will show the next value of standard buffer solution Use or key to selects the second standard buffer solution from the pre set standard buffer solution Take electrode out of the first stan...

Page 21: ...n transmitter will automatically switch to calibration temperature from pre set measurement temperature When leaving calibration mode transmitter will switch to measurement temperature again Please re...

Page 22: ...display shows 255mv to tell user to change standard solution 4 Clean electrode and put it into relevant standard solution Press key to confirm Instrument enters into calibration status After calibrati...

Page 23: ...in measurement mode 2 LCD ask you to input password Use or to input the password Input 058 to change parameter 3 Press to confirm NOTE Press twice to quit set up mode at anytime Instrument will retur...

Page 24: ...form Use or to select other sub functions or press to return to measurement status 3 In the status of manual temperature compensation press and instrument enter set up status of manual temperature co...

Page 25: ...easured value in ORP measurement mode The lower display shows UOFS The right lower display show offset 2 User can press or to adjust offset to modify measurement value Press to confirm and return to P...

Page 26: ...r display shows 0 00 which means that 0 00mA transmitting range indicates 0 00pH User can press or to adjust the actual value Press to confirm The lower display shows CURH while the upper display show...

Page 27: ...press or to select PLC mode The control mode of instrument is under proportion control mode Press to confirm and return to P03 sub function form Use or to select other sub functions and to set up Note...

Page 28: ...point and be damaged Controlling proportion range is set up under proportion control mode this parameter is not lower than 5 under PLC mode to confirm and adjust time period of adding medicine automat...

Page 29: ...mode is from 0 00 2 00PH For example if high point is 7 00pH and hysteresis band is 0 50pH movement range of the relay is from 6 50pH to 7 00pH If low point is 6 00pH and hysteresis band is 0 20pH mov...

Page 30: ...n keep their reliability If user select CLE working mode he can set cleaning time intervals in the function form use hour as the unit cleaning continuous time use second as the unit In this way instru...

Page 31: ...le the upper display shows NST Nist standard or USA USA standard User can use or to select items according to kind of standard solution Press to confirm and return to P08 sub function form Use or sele...

Page 32: ...instrument shows bt while the upper display shows 005 which indicates that user is setting communication rate function Use or to select necessary communication rate Press to confirm and return to P09...

Page 33: ...25 0 MEA PH 1 Press in P10 to enter into concrete set up procedures 2 The lower display of the instrument shows DEF while the upper display shows NO YES User can press or to select necessary items If...

Page 34: ...ing it will enter to receive status again To avoid the conflict each instrument has to use different ID decided by NB All of the instruments and PC must use the same baud rate decided by BT 2 Data for...

Page 35: ...f R D CRCH CRCL CRC 0D the end byte the response by instrument is 40 30 31 52 44 30 30 V1LH V1LL V1HH V1HL 3X V2LH V2LL V2HH V2HL 3X 3X 3X 3X 3X CRCH CRCL 0D 40 the start byte 30 31 the ID of instrume...

Page 36: ...rameter adr 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D para TST1 TST1 TST2 TST2 SP1U SP1U SP2U SP2U CURL CURL CURH CURH POFS POFS adr 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B para HOR HOR AAA FUNC R3O...

Page 37: ...ong information All parameters please see the following table some parameters are include decimal para TST1 TST2 SP1U SP2U CURL CURH POFS HOR AAA FUNC decimal 1 1 0 2 0 2 0 2 0 2 0 2 0 0 0 para R3OP T...

Page 38: ...teresis band 0 01 to 2 pH ORP hysteresis band 1 to 200 mV Relay output Three SPST relays 250V1A Communication RS 485 client program Electric current information and connection Electric source 110 or 2...

Page 39: ...SP1 Way set up of relay 1 HI LO LO 12 SP1U SP1U Setting value of relay 1 1999 1999 400 13 SP1D SP1d Relay 1 hysteresis proportion PH mode 0 01PH unit ORP mode 1mV unit 0 200 2 00 10 14 P5 SP1 SP1T SP1...

Page 40: ...6 92 7 06 9 16 9 32 10 18 15 0 99 4 00 6 90 7 04 9 11 9 27 10 12 20 1 00 4 00 6 88 7 02 9 05 9 22 10 06 25 1 01 4 01 6 86 7 00 9 00 9 18 10 01 30 1 01 4 01 6 85 6 99 8 95 9 14 9 97 35 1 01 4 02 6 84...

Page 41: ...activates when the set point is reached In the reverse direction it closes Relay continues to be active till the value reaches the amount set by hysteresis band 4 0 4 5 9 5 10 0 7 0 RELAY OFF HYSTERE...

Page 42: ...AX Function Xp Prop Band Xp Prop Band SP 1 SP 2 Xw Xw Yh 0 50 100 Control characteristic of P Controller as proportional controller MIN Function MAX Function Xp 0 Xp 0 SP 1 SP 2 Xw Xw Yh 0 50 100 Cont...

Page 43: ...controlled by hysteresis band is time Crile T for open or close is constant Different value comes from limited value increase or decrease of open time is in accordance with proportion range Following...

Page 44: ...ro point offset SET Set up ATC Automatic temperature cor SP1 Set point 1 SP2 Set point 2 LO Low limit HI High limit CNtr Control LIt Limited point control PLC Pulse length control RL3 Relay OUT Output...

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