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Read Carefully !
1
This manual contains safety information that if ignored can
endanger life or result in serious injury. They are indicated
by this icon.
Keep the instrument protected from sun and water.
Avoid water splashes.
OPERATING INSTRUCTIONS FOR
"LDSCD PLUS" / "LDSCDIND PLUS" / "LDSCDIND PLUS D"
DOWNLOAD ERMES COMMUNICATION SOFTWARE
www.ermes-server.com
INSTRUMENT SERIES
ENGLISH Version
R14-12-18
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Table of Contents
Summary of Contents for NORME LDSCDIND PLUS
- Page 1 They are indicated by this icon. Keep the instrument protected from sun and water. Avoid water splashes. OPERATING INSTRUCTIONS FOR “LDSCD PLUS” / “LDSCDIND PLUS” / “LDSCDIND PLUS D” INSTRUMENT SERIES DOWNLOAD ERMES COMMUNICATION SOFTWARE www.ermes-server.com Read Carefully !
- Page 2 NORME CE EC RULES(STANDARD EC) NORMAS DE LA CE ⎬ Direttiva Bassa Tensione Low Voltage Directive 2014/35/UE Directiva de baja tensión ⎬ Direttiva EMC Compatibilità Elettromagnetica 2014/30/UE EMC electromagnetic compatibility directive EMC directiva de compatibilidad electromagnética GENERAL SAFETY GUIDELINES Danger!
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Page 3: Introduction
1. Introduction LDSCD is a microprocessor based digital regulator for conductivity with temperature reading and mA module (feed forward). On/Off, impulsive proportional, proportional PWM or fixed PWM, Water Meter and PID are main working modes. Also available FEED FORWARD setting for mA module. Pulses per minute can be set for outputs. Working ranges are: Conductivity: from 0 to 10 mg/l. -
Page 4: Board Connectiones
3. Mainboard Connections Unplug instrument from main power supply then perform connections by following the above picture. 3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 USB or GSM or ETHERNET modules L 1 2 3 4 5 (see this manual “Appendix”) 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 E E E E E E... -
Page 5: Main View
4. Main Screen When into normal operating mode, LDSCD shows the following main screen: GSM Signal* UNIT (1) Connection Status LAN CONNECTION OK - ERMES CONNECTION OK VALUES (2) LAN CABLE DISCONNECTED LAN CABLE CONNECTED - ERMES NOT AVAILABLE WARNING MESSAGES OUTPUTS STATUS (3) NOTIFICATION AREA CONNECTED TO USB PEN-DRIVE... -
Page 6: Status Check
5. Quick status check From main screen completely rotate clockwise the wheel to review main instrument parameters and current outputs status. Local Time Local Date Conductivity probe reading Temperature probe reading Dosing alarm condition Probe failure status Alarm contact status Flow contact status Tank Level status Last Conductivity calibration... -
Page 7: Password
6. Password To grant access into “Main Menu” press the wheel from main screen and enter the passcode. If this is the first time here then the passcode is 0000 (factory preset). Press wheel 5 times to enter into “Main Menu”. -
Page 8: Main Menu
7. “Main Menu” list To grant access into “Main Menu” enter the passcode (as described in previous chapter). Once into “Main Menu” rotate the wheel to scroll through all the options available. “Setpoint” (see page 9) “Calibration” (see page 14) “Parameters”... -
Page 9: "Set-Point", Cd (On/Off)
8.1 “Set-Point” “CD PULSE 1 ” and “CD PULSE 2” outputs can be set to operate within: On/Off, Proportional (%) or disabled (OFF) modes. “CD RELAY 1” and “CD RELAY 2” outputs can be set to operate within: On/Off, Proportional PWM, Fixed PWM or disabled (OFF) modes. 8.2 “Set-Point”, Conductivity (on/off) All Conductivity outputs can be set to operate into this mode. -
Page 10: Set-Point", Cd (Proportional)
8.2 “Set-Point”, CD proportional & proportional water meter (pulse) This mode is valid for “CD pulse” and “CD pulse 2” outputs only. Proportional mode set the instrument to operate using a calculated percentage between two set values that enable or disable the Conductivity pump. To use this mode move cursor on “Working Mode”. Press the wheel and select it. -
Page 11: Pwm" Proportional, Cd
8.3 “PWM” proportional CD & proportional water meter (relay) “CD RELAY 1” and “CD RELAY 2” outputs can be set into this mode. Pulse-width modulation (PWM) of a signal or power source involves the modulation of its duty cycle, to either convey information over a communications channel or control the amount of power sent to a load. -
Page 12: Pwm" (Fixed), Cd
8.5 “PWM” (fixed), Conductivity “CD RELAY 1” and “CD RELAY 2” outputs can be set into this mode. Pulse-width modulation (PWM) of a signal or power source involves the modulation of its duty cycle, to either convey information over a communications channel or control the amount of power sent to a load. This mode works over a settable (0 to 100 seconds) time to switch on or off selected output. -
Page 13: Pid", Cd
8.5 “PID”, CD A proportional-integral-derivative controller (PID controller) is a control loop feedback mechanism (controller) widely used in industrial control systems. A PID controller calculates an error value as the difference between a measured process variable and a desired setpoint. The controller attempts to minimize the error by adjusting the process through use of a manipulated variable. -
Page 14: "Probe Calibration", C
9.1 “Menu Calibration”, Probe CD Conductivity calibration procedure involves a zero calibration (P1) and a 2nd calibration point (P2) that requires a buffer solution with value near working range. Note: This procedure assumes that instrument is correctly installed and configured, connected to a working probe. Calibrate using plant’s temperature otherwise unattended results may occur. - Page 15 9.1 “Probe Calibration”, °C - Temperature A professioanl thermometer is required to obtain a reliable calibration. From “Menu Calibration” choose “Temp probe”. Note: This procedure assumes that instrument is correctly installed and configured, connected to a working PT100.. Calibrate using plant’s temperature otherwise unattended results may occur. Using an external thermometer read actual temperature and edit related field “Cal.
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Page 16: Parameters
10. “Parameters” From “Menu Calibration” choose “Parameters”. This menu allows to set a delay (max 60 minutes) before pumps begin to feed. Furthermore use this menu to set pH pump startup priority and to change default passcode. Feeding Delay. Move on “Feeding Delay” then press wheel. Choose a value between 0 (disabled) and 60 minutes (maximum delay time). -
Page 17: Output Manager
11. “Output Manager” From “Menu Calibration” choose “Output Manager”. This menu allows to manually operate all outputs for a settable time. Set to “AUTO” for normal operating mode. Set to “OFF” to permanently disable outputs. Press wheel to move cursor on “TIME” field. Once here, choose a working time between 0 (disabled) or 199 minutes. -
Page 18: Instrument Reset
12. “Instrument Reset” To restore instrument to its default values (including password) once into “Instrument Reset” menu, press wheel then change value to “ON”, press wheel again, move on “OK” then finally press wheel. The instrument display will show “CHECKSUM ERROR”. Press whell to return into “Main Menu”. Move on “EXIT”, then press wheel. The instrument is now restored to factory default. -
Page 19: Dosing Alarm
13. “Dosing Alarm” Use this menu to assign a maximum time to the pumps for reaching the setpoint. If set time ends and the pumps are still dosing, within this menu is possible to STOP them or just to show an alarm message. Function can be disabled selecting “OFF”... -
Page 20: International
14. “International” Use this menu to set international parameters as UNIT FORMAT (Europe IS or USA), Local Time and Date. Format. Use this option to use European or USA units format. See table for differencies. EUROPE IS (Internationl Standard) Date (DD/MMM/YY) Date (MMM/DD/YY) Time 24h Time AM / PM... -
Page 21: Probe Failure
15. “Probe Failure” Use this menu to assign a maximum time for connected probes to stay in “stuck” condition. A stuck probe (it remains on same reading value for some time) means that probably probe itself is damaged. Within this menu is possible to STOP pumps or just to show an alarm message (probe failure) . -
Page 22: Flow Contact
16. “Flow Contact” Flow contact (see “SEPR” blocks on page 4) can be enabled to stop a dosing procedure using a N.O. contact mode (normally open) or N.C. contact mode (normally closed) when status on blocks changes. Rotate wheel to choose between: “DISABLE”, “REVERSE”... -
Page 23: Ma Outputs
18. “mA Outputs” This menu allows to configure mA current otputs for Conductivity, Temperature channels and PID mA mode. Options to set are: MODE (selectable between 0-20 or 4-20 mA current output) Max mA: maximum probe’s reading value at 20 mA current Min mA: minimum probe’s reading value at 0 or 4 mA current Disable / Enable on alarm: enable or disable output on alarm condition (flow, level, probe failure, dosage, out of range) Note: The outputs available for the PID mA are those set in the menu SETPOINT. -
Page 24: Out Of Range Alarm
19. “Out of range alarm” “Out of range alarm” menu defines the minimum and maximum Conductivity probe read value before to stop dosing activity and to show an alarm message. Move wheel on “Min/Max mS Range” to set “out of range” condition for Conductivity probe then click on wheel to enter into “Min/Max Range menu”. -
Page 25: Self Clean
20. “Self Clean” To obtain reliable results, the instrument can be connected to a cleaning apparatus (eg .: Probe Cleaning). This menu enables the functionality to blocks 4-E-N (see page 8). Options are: Cycle Time: time between cleaning procedure and next procedure (adjustable from 6 hours to 10 days) Clean Time: time required to complete probe cleaning procedure (adjustable from 0 to 999 seconds) -
Page 26: Circulator Pump
21. “Circulator Pump” This feature allows you to power a pump for water circulation inside the intake pipeline, increasing the pressure. To activate the circulation pump connected to terminals 5-E-N (see terminal) set option to “ENABLED” To disable set the tool to “DISABLED”. -
Page 27: Technical Information
22. Technical information. Power supply: 85÷264 VAC Conductivity range: 0-3000uS ; 0-30.00mS ; 0-300.0mS ; K1 ppm ; K0.1 ppm ; K10 ppm Environment Temperature: -10 ÷ 45°C (14 ÷ 113°F) Chemical Temperature: 0 ÷ 50°C (32 ÷ 122°F) Installation Class: II Pollution Level: 2 Packaging and Transporting Temperature: -10 ÷... -
Page 28: Sepr Configuration
23. SEPR configuration SEPR “Flow Sensor” configuration for two instruments 16 17 16 17 SEPR Configuration of a Flow Switch with a voltage free contact and two instruments 16 17 16 17 N.C. contact (OK) N.O. contact (Alarm) NPED4... -
Page 29: Water Meter
24. “Water Meter” Enter into “Water Meter” menu to setup Flow Meter configuration type, see total amount of liters passed through water meter, reset totalizer and setup a timeout alarm for no water flow. The alarm will be notified into main screen and water meter status (see page 6). -
Page 30: Feed Forward" And Ma Module
25 “Feed Forward”, PID loop The PID controller algorithm involves three separate constant parameters, and is accordingly sometimes called three- term control: the proportional, the integral and derivative values, denoted P, I, and D. Simply put, these values can be interpreted in terms of time: P depends on the present error, I on the accumulation of past errors, and D is a prediction of future errors, based on current rate of change. -
Page 31: Ldscd Plus D Timered Version
26. LDSCDIND PLUS D Version The LDSCDIND PLUS D has two timered outputs that are always off until the value reaches the set time. An extra menu is available under main settings. 1(Live) - E(Earth) - N(Neutral): 85÷264VAC - 5A 50/60 Hz Relay Output “CD Relay Timer”. To use with ON/OFF or PWM device 26(-) - 27(+): Opto coupled output “CD PULSE Timer”. -
Page 32: Appendix - Probe Modules
Appendix - Conductivity module MDCD Setup connections according to probe features. Connect probe as follows: Connect ECDHL PT100 extra wires to mainboard as follows: Block n.1 : Shield Block n.2 : Black (probe) Block n. 6 + 7: white Block n.3 : Red (probe) Block n. -
Page 33: Appendix - Electrovalve Connection
Appendix -Electrovalve connections... -
Page 34: Appendix - "Module Sms/Gsm
Appendix Communication HARDWARE - “SMS/GSM” Module Located under mainboard cover there is a four pins connector that can be used to install USB, ETHERNET or MODEM modules. Modules come pre-installed upon request and may appear different as shown (different configurations). “SMS/GMS module”... -
Page 35: Appendix - "Module Usb For Data Log
Appendix Communication HARDWARE - “LOG USB” Module Located under mainboard cover there is a four pins connector that can be used to install “USB data log module” or “SMS module”. Modules come pre-installed upon request and may appear different as shown (different configurations). -
Page 36: Appendix - Communication
Appendix Communication - Software “RS485” menu. Prior to install the instrument into an RS485 local system a unique ID NUMBER (from 1 to 30) and ID NAME (station name) must be set. Rotate wheel and edit fields. If ID number has already assigned an error message will follow after ID Check (move cursor on CHECK and press wheel). - Page 37 Appendix Communication - Software “TCP/IP” menu. The instrument may be remotely operated using a standard ethernet connection (sold as option). A static or dynamic IP address and a CAT5 ethernet cable is required. According to your network capacity connection speed is 10/100Mbps. To obtain a valid IP address and subnet mask contact your net administrator.
- Page 38 Appendix Communication - Software “GPRS” menu. Instrument may be remotely operated using an embedded standard GPRS modem (sold as option). In order to activate this service please ensure that the following steps are correctly completed: - Make certain the antenna location is not shielded by metal objects or near sources of electrical ‘noise’. - Make certain the distance from the antenna to the “Instrument”...
- Page 39 Appendix Communication - Software “LOG” menu. This function records instrument acitvity (date, hour, temperature, uS, totalizer I/O, alarms, outputs). It starts for selected frequency period (every) at requested time (time). SET DATE & TIME BEFORE TO ENABLE LOG. IF NOT POWERED FOR ABOUT 30 DAYS THE INSTRUMENT WILL LOOSE DATE/TIME Set ACTIVE to “enabled”...
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Page 40: Appendix - Modbus
Appendix - MODBUS Modbus is a serial communications protocol originally published by Modicon (now Schneider Electric) in 1979 for use with its programmable logic controllers (PLCs). Simple and robust, it has since become a de facto standard communication protocol, and it is now a commonly available means of connecting industrial electronic devices. From main menu select COMMUNICATION then MODBUS to access the options. -
Page 41: Appendix - Dimensions
Appendix E - Dimensions... -
Page 42: Appendix - Compensation
Appendix F - “Temperature compensation” Conductivity measurements are temperature dependent. The degree to which temperature affects conductivity varies from solution to solution and can be calculated using the following formula: Gt = Gtcal {1 + a(T-Tcal)} where: Gt = conductivity at any temperature T in °C, Gtcal = conductivity at calibration temperature Tcal in °C, a = temperature coefficient of solution at Tcal in °C. -
Page 43: Table Of Contents
Index 1. Introduction ..................3 2. The wheel .................... 3 3. Board connectiones ................4 4. Main view ................... 5 5. Status check ..................6 6. Password ..................... 7 7. “Main Menu” ..................8 8 “Set-Point”, CD (On/Off) ..............9 8.1 “Set-Point”, CD (on/off) .............. - Page 44 When dismantling this instrument please separate material types and send them according to local recycling disposal requirements. We appreciate your efforts in supporting your local Recycle Environmental Program. Working together we’ll form an active union to assure the world’s invaluable resources are conserved.