Kobold ACM-1 Operating Instructions Manual
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Kobold ACM-1 Operating Instructions Manual

Transmitter/controller for conductivity, tds, resistance, temperature and standard signals
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Kobold ACM-1
Transmitter/controller for conductivity, TDS,
resistance, temperature and standard signals
Operating instructions

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Summary of Contents for Kobold ACM-1

  • Page 1 Kobold ACM-1 Transmitter/controller for conductivity, TDS, resistance, temperature and standard signals Operating instructions...
  • Page 2 WARNING: A sudden malfunction of the instrument, or one of the sensors connected to it, could potentially result in dangerous overdosing! Suitable preventive measures must be in place to prevent this from happening. Note: Please read these Operating Instructions before placing the instrument in operation.

  • Page 3: Table Of Contents

    Contents Typographical conventions ............7 Warning signs ....................7 Reference signs ...................7 Description ................8 Instrument identification ............10 Nameplate ....................10 Type designation ..................10 Accessories (included in delivery) ..............12 Accessories (optional) ................12 Mounting .................. 13 General information ..................13 Dimensions ....................13 Installation ................14 Installation instructions ................14 Electrical isolation ..................15 Connection ....................16...
  • Page 4 Contents Calibrating a sensor with a standard signal ......53 General information ..................53 Linear operating mode ................55 pH operating mode ..................59 Conductivity operating mode ..............63 Concentration operating mode ..............69 Chlorine measurement operating mode, pH-compensated 71 Calibration logbook ..............73 10.1 General information ..................73 Controller .................
  • Page 5 Index 1-point calibration - pH HOLD mode 2-point calibration 2-point calibration - pH Info Hardware Accessories Instrument Administrator Installation position Basic setting Key combinations Binary inputs and outputs States Language selection Limit functions Calibration Logbook pH, 2-point Manual Standard signal MANUAL mode Standard signal, options Analog outputs...
  • Page 6 (info.de@kobold.com) in PDF format, specifying the relevant invoice number and serial number. If you wish, the operating instructions can also be sent to you by post in paper...

  • Page 7: Typographical Conventions

    1 Typographical conventions Warning signs Danger This symbol is used when there may be danger to personnel if the instructions are ignored or not followed correctly! Caution This symbol is used when there may be damage to equipment or data if the instructions are ignored or not followed correctly! Reference signs Note...

  • Page 8: Description

    2 Description Inputs/outputs In addition to the main input (conductivity, TDS, resistance) and the secondary input (temperature compensation), the basic instrument alone has two binary inputs, two relays, one power supply for external sensors and a setup interface. Input signals can be shown as numbers or as a bar graph on the graphic display.
  • Page 9 2 Description (trend) display - Four limit controllers - Integrated calibration routines: with 1, 2 and 3 points - Math and logic module (optional) - Calibration logbook - Three optional slots - Selectable languages: English, German, French, etc. - Setup program provides: convenient programming, system documentation - RS422/485 interface (optional) - Profibus-DP interface (optional)

  • Page 10: Instrument Identification

    3 Instrument identification Nameplate on the transmitter VARTN: 20/00574309 ACM-1E24000 F-Nr.: 0168287401012190001 ≤ 13VA AC/DC 20..30V 48..63Hz AC/DC 20..30V 48..63Hz ≤ 13VA VARTN: 20/00574309 F-Nr.: 0168287401012190001 The date of manufacture is encoded in the "F No." (serial number): 1122 means year of manufacture 2011 / calendar week 22...

  • Page 11: Type Designation

    3 Instrument identification Type designation Order Details (Example: ACM-1 E 1 0 0 0 Y) Option 1 Option 2 Option 3 Model Version Housing Power supply Special (Optional board) (Optional board) (Optional board) 0 = without 1 = universal input...

  • Page 12: Accessories (Included In Delivery)

    3 Instrument identification Accessories (included in delivery) 4 x fastening elements, complete 3 x CON plug-in link 3 x jumper wire 1 x seal for panel 1 x fastening elements, complete - 1 x DIN rail fastening left - 1 x DIN rail fastening right - 3 x wall mount - 3 x fastening screw For basic type extension 01 only (in the panel enclosure)

  • Page 13: Mounting

    4 Mounting General Mounting Find a location that ensures easy accessibility for the later calibration. location The fastening must be secure and must ensure low vibration for the instrument. Avoid direct sunlight! Permissible ambient temperature at the installation location: -10 - 55°C with max.

  • Page 14: Installation

    5 Installation Installation instructions The electrical connection must only be performed by qualified personnel! ❏ The choice of cable, the installation and the electrical connection must conform to the requirements of VDE 0100 “Regulations on the Installation of Power Circuits with Nominal Voltages below 1000 V” and the relevant local regulations ❏...

  • Page 15: Electrical Isolation

    5 Installation Electrical isolation 3700 V AC Semiconductor relay Setup interface Triac Binary inputs 3700 V AC Relay outputs Main input cond. conductivity Secondary input (Pt100/Pt1000) 30 V AC 50 V DC Power supply Continuous outputs for a 2-wire transmitter 30 V AC 30 V AC 50 V DC...

  • Page 16: Connection

    5 Installation Connection 5.3.1 Terminal assignment Row 1 (a) Option 1 (b) Option 2 (c) Option 3 Row 2 Main input board (conductivity / resistance / temperature / standard signal) Row 3 PSU board (power supply / 2x relays) 5.3.2 Optional board (row 1, slot a, b or c) Function Symbol Terminal...
  • Page 17 5 Installation Function Symbol Terminal Terminal Terminal for slot (a) for slot (b) for slot (c) Voltage 0(2) - 10 V Voltage 0 - 1 V Continuous output Current or voltage Modbus interface RS422 RxD+ RxD- TxD+ TxD- RS485 RxD/TxD+ RxD/TxD- Profibus interface VP(+5V)
  • Page 18 5 Installation 5.3.3 Main board (row 2) Function Symbol Terminal Standard signal input for electrical current 0(4) - 20 mA Standard signal input for voltage 0(2) - 10 V or 10 - 0(2) V Temperature sensor in a two-wire circuit Pt100 or Pt1000 Temperature sensor in a three-wire circuit...
  • Page 19 5 Installation 5.3.4 PSU board (row 3) Function Symbol Terminal Power supply for ACM-1 Power supply: 1 L1 (L+) AC 110 - 240 V 2 N (L-) Power supply: AC/DC 20 - 30 V n.c. Supply voltage for external 2-wire transmitter...

  • Page 20: Operation

    6 Operation Operation via the instrument keypad is described below. Instrument operation via th e optional set-up program, See section 12 "Setup program", page 80. Controls Measurement unit Temperature Operating mode Measured value Increase numerical value / Forward selection Decrease numerical value / Forward selection Change level / Forward selection / Confirm selection Cancel entry / Exit level EXIT...

  • Page 21: Display

    6 Operation Display 6.2.1 Measuring mode (normal display) Example (1) Binary output (relay) K1 is active (2) Binary output (relay) K2 is active (3) Binary input is active (4) Keypad is locked (5) Instrument status ALARM (flashing): Broken sensor or overrange, etc. AL R1: Controller monitoring alarm from controller channel 1 AL R2: Controller monitoring alarm from controller channel 2 CALIB: Calibration mode active...

  • Page 22: Principle Of Operation

    6 Operation Principle of operation 6.3.1 Operation in levels See page Measurement mode Normal display Min/max values of the main input Min/max values of the optional inputs Output display Current values of the main input Current values of the optional inputs Current values of the math channels States of the binary inputs and outputs Manual mode overview...
  • Page 23 6 Operation Display Administrator level (password) Parameter level Parameters as above for "User level" Release level Parameters as above for "User level" Basic setting Calibration level Main input (depending on the basic setting) Temperature coefficient, linear Relative cell constant Optional input 1, 2, 3 Temperature coefficient, linear Temperature coefficient, curve Relative cell constant...
  • Page 24 6 Operation Calibration level Main input Temperature coefficient, linear Temperature coefficient, curve Optional input 1, 2, 3 Temperature coefficient, linear Temperature coefficient, curve Relative cell constant Zero point Limit point 2-point Calibration logbook Main input Optional input 1, 2, 3 Instrument information...

  • Page 25: Measuring Mode

    6 Operation Measuring mode Different display types can be configured, See "Display of measured values STANDARD" page 94. To return to Measuring mode: press the key or wait for a "timeout". EXIT Measurements with "out of range" are ignored. The min./max. value memory can be reset: Administrator level / Delete min/max.

  • Page 26: Input/Output Information

    6 Operation Input/output information Measuring mode (normal display) < 2 s > 3 s < 2 s or timeout EXIT or timeout EXIT (adjustable) Main variable User data (adjustable) User Temperature input level EXIT or timeout (adjustable) or timeout Can only be activated with or timeout EXIT Optional input 1...
  • Page 27 6 Operation Measuring mode (normal display) EXIT + EXIT + EXIT + < 2 s > 3 s > 3 s Manual mode Hold mode Calibration Hardware information (controller) EXIT EXIT EXIT or timeout or timeout or timeout Keys (adjustable) (adjustable) (adjustable) release...
  • Page 28 6 Operation MOhm x cm, mV, %, ppm) and the temperature "T:" are displayed. The extreme values of the main measurement variable and the temperature are not mutually assigned (e.g. not 813 μS/cm at 24.3°C). 6.5.3 Min/max values of the optional inputs Activating the display The instrument is in Measuring mode (normal display) ✱...
  • Page 29 6 Operation 6.5.6 Curgent values of the optional entries Activating the display The instrument is in Measuring mode (normal display) ✱ Briefly press the key (several times if necessary). The current values of the optional inputs (1, 2 and 3) are displayed 6.5.7 Current values of the math channels Activating the display The instrument is in Measuring mode (normal display)
  • Page 30 6 Operation 6.5.9 Manual mode overview Analog outputs (optional boards) In this example, analog outputs 2 and 3 are working normally. Switching outputs (PSU board and optional boards) In this example relay output 2 is in Manual mode. The instrument is in "normal display" mode ✱...

  • Page 31: User Level

    6 Operation 6.5.11 Device info These displays provide an overview of fitted hardware options and the settings of inputs (helpful for troubleshooting, etc.). ✱ Press the key for longer than 3 seconds. ✱ Briefly press the key (several times if necessary). ✱...

  • Page 32: Administrator Level

    All parameters can be released (modification possible) or locked (no modification possible) for editing at the User level. 6.7.3 Basic setting The ACM-1 has a basic setting wizard, to make it easier for the user to configure the extensive setting options of the instrument and to avoid configuration conflicts.
  • Page 33 6 Operation Basic setting wizard Cell type 2-wire 4-wire Cell constant Cell constant 0.01 / 0.1 / 0.5 / 0.01 / 0.1 / 0.5 / 1.0 / 3.0 / 10.0 / 3.0 / 10.0 0.5 /1.0 Pollution recogn. Off / On Sens.
  • Page 34 6 Operation Temperature compensation source (manual temperature, Temperature input, optional input 1, 2, 3) Temp. coefficient Temp. coefficient Temp. coefficient Temp. coefficient 0.0 - 2.20 - 8.0%/K 0.0 - 2.20 - 8.0%/K 0.0 - 2.20 - 8.0%/K 0.0 - 2.20 - 8.0%/K Unit TDS factor...

  • Page 35: Manual Mode / Simulation Mode

    6 Operation 6.7.4 Calibration level Depending on which operating mode has been configured (in the Basic setting menu), one or more of the following calibration options will be available: - Cell constant - Temperature coefficient 6.7.5 Calibration release Which calibration procedure may be performed directly and which may not can be configured here, See section 8.2.2 "Ways to start the calibration", page 6.7.6 Delete min/max values If required, the values can be deleted once a request for confirmation has been...
  • Page 36 6 Operation 6.8.1 MANUAL mode only via "higher order" controller functions Select Manual mode In the factory setting of the instrument the MANUAL mode parameter is locked and can only be activated by the administrator! This parameter must first be released for other users, See "Release level" page 32.
  • Page 37 6 Operation 6.8.2 Simulation of binary outputs Activate simulation In the factory setting of the instrument the MANUAL mode parameter is set to "No simulation" and can only be activated by the administrator! This parameter must first be released for other users, See "Release level" page 32.

  • Page 38: Hold Mode

    6 Operation HOLD mode In HOLD status the outputs take on the states programmed in the relevant parameter (controller channel, switching output or analog output). This function can be used to "freeze" switching outputs and the analog outputs of the instrument. This means the current status of the output will be retained even when the measured value changes.
  • Page 39 6 Operation Pressing a key to deactivate HOLD mode ✱ Press the keys for longer than 3 seconds. EXIT If the keys are pressed for less than 3 seconds, the instrument EXIT goes into Manual mode. Then the outputs of the instrument respond according to the default settings. Control is through the outputs of the instrument again.

  • Page 40: Commissioning

    7 Commissioning Getting started Some suggestions follow for configuring the instrument reliably in little time. ✱ Mount the instrument, See section 4 "Mounting", page 13. ✱ Install the instrument, See section 5 "Installation", page 14 ff. ✱ Call up Administrator level (ADMINISTR. LEVEL). ✱...

  • Page 41: Setting Examples

    7 Commissioning Setting examples 7.2.1 Conductivity measurement, temperature compensated Measurement of drinking water. Layout Transmitter/controller type ACM-1 Conductivity cell on the main board Conductivity cable Electrical connection See section 5 "Installation", page 14. Task Measurement range: 0 - 1.00 mS/cm Cell constant K: 1.0 1/cm...
  • Page 42 7 Commissioning Basic setting Start the basic settingsSee section 6.7.3 "Basic setting", page 32 Diagrammatic overview, See section "Basic setting wizard", page 33. Cell type 2-wire Cell constant Broken sensor detection Operating mode Conductivity Temperature compensation Linear Temperature compensation source Temperature input Temperature coefficient 2.20 (factory setting)
  • Page 43 7 Commissioning 7.2.2 Measurement of ultra-pure water with 2-electrode measuring cell USP limit monitoring. Layout Transmitter/controller type ACM-1 Conductivity cell on the main board Conductivity cable Electrical connection See section 5 "Installation", page 14. Task Measurement range: 0 - 2.00 μS/cm Cell constant K: 0.01 1/cm...
  • Page 44 7 Commissioning Basic setting Start the basic settingsSee section 6.7.3 "Basic setting", page 32 Diagrammatic overview, See section "Basic setting wizard", page 33. Cell type 2-wire Cell constant 0.01 Broken sensor detection Operating mode Conductivity Temperature compensation None Temperature compensation source Temperature input Unit μS/cm...
  • Page 45 7 Commissioning 7.2.3 Measurement of ultra-pure water with 2-electrode measuring cell Display in MOhm x cm. Layout Transmitter/controller type ACM-1 Conductivity cell on the main board Conductivity cable Electrical connection See section 5 "Installation", page 14. Task Measurement range: 0 - 20.00 MOhm x cm Cell constant K: 0.01 1/cm...
  • Page 46 7 Commissioning Basic setting Start the basic settingsSee section 6.7.3 "Basic setting", page 32 Diagrammatic overview, See section "Basic setting wizard", page 33. Cell type 2-wire Cell constant 0.01 Broken sensor detection Operating mode Conductivity Temperature compensation None Temperature compensation source Temperature input Unit MOhm x cm...

  • Page 47: Calibrating A Conductivity Cell

    8 Calibrating a conductivity cell Notes During calibration, relays and analog output signals adopt their configured states! When is calibration required? - The temperature coefficient of the sample medium must be determined once. - The cell constant must be calibrated at regular intervals (depending on the sample medium and requirements).

  • Page 48: Calibration Of The Temperature Coefficient Of The Sample Medium

    3 seconds / CALIBR.-LEVEL / MAIN INPUT or ANALOG INPUT. 8.2.3 Calibration options The instrument provides two calibration options for adjusting the ACM-1 to the measuring point: Calibration of the temperature coefficient See section 8.4 "Calibrating the relative cell constant", page 51.
  • Page 49 8 Calibrating a conductivity cell Now the source of temperature acquisition can be selected (manually, or using the temperature input of the PSU board, or the temperature input via the optional board). This source will be active for the duration of the calibration. An example follows: automatic temperature acquisition using the temperature sensor integrated into the conductivity cell.
  • Page 50 8 Calibrating a conductivity cell Calibration is also possible in the cooling process (with a falling temperature). It starts above the working temperature and ends below the working temperature. As soon as the temperature of the sample medium exceeds T1 (25°C), this is hidden on the display.

  • Page 51: Calibrating The Relative Cell Constant

    8 Calibrating a conductivity cell Calibrating the relative cell constant ✱ Make preparations, See section 8.2 "General information", page 47. ✱ Start calibration, See section 8.2.2 "Ways to start the calibration", page 48. ✱ Select the relative cell constant. ✱ Immerse the conductivity cell in a reference solution with a known conductivity.
  • Page 52 8 Calibrating a conductivity cell 8.4.1 Entering the cell constant manually If the exact cell constant is known (for example a measuring cell with the ASTM test report), the value can be entered directly. ADMINISTR.-LEVEL / PARAMETER LEVEL / INPUT CONDUCT. /REL. CELL CONST.

  • Page 53: Calibrating A Sensor With A Standard Signal

    9 Calibrating a sensor with a standard signal General information During calibration, relays and analog output signals adopt their configured states! Sensors with a standard signal output can only be connected to an "Analog input (universal)" optional board! The sensors connected to the instrument should be cleaned and the instrument itself calibrated, at regular intervals (subject to the sample medium).
  • Page 54 9 Calibrating a sensor with a standard signal 9.1.2 Calibration options Different calibration options are available depending on the operating mode. Operating mode Calibration options Page 1-point 2-point Limit point Rel. Temp.coeff cell const. Linear Conductivity Concentration Customer specs. Due to the table with interpolation points, no calibration is required Chlorine, pH-compensated - With one-point (offset) calibration, the zero point of the sensor is...

  • Page 55: Linear Operating Mode

    9 Calibrating a sensor with a standard signal Linear operating mode 9.2.1 1-point calibration This example is based on a liquid level measurement (as a %). The input signal is provided by a pressure transmitter. - The transmitter is in "Measuring mode". ✱...
  • Page 56 9 Calibrating a sensor with a standard signal The instrument returns to Measuring mode. Calibration is complete After rinsing, the sensor can again be used to take measurements. 9.2.2 Two-point calibration The values determined during calibration (zero point and slope) work out as follows: Input value + Zero point...
  • Page 57 9 Calibrating a sensor with a standard signal ✱ Set the displayed value to the required value (usually 0) with the keys; then press to continue. ✱ Now bring the system to a second defined state (e.g. when measuring liquid level, container full). Wait until the display value has stabilized;...
  • Page 58 9 Calibrating a sensor with a standard signal Calibration is complete After rinsing, the sensor can again be used to take measurements. 9.2.3 Calibration limit point This example is based on a measurement of free chlorine. The input signal is provided by a corresponding transmitter.

  • Page 59: Ph Operating Mode

    9 Calibrating a sensor with a standard signal ✱ The instrument returns to Measuring mode. Calibration is complete After rinsing, the sensor can again be used to take measurements. pH operating mode 9.3.1 Zero point (1-point) calibration This example is based on a glass combination electrode with a connected two-wire transmitter.
  • Page 60 9 Calibrating a sensor with a standard signal value. ✱ Start the zero point calibration with the key. Now the source of temperature acquisition can be selected (manually, or using the temperature input of the PSU board, or the temperature input via the optional board).
  • Page 61 9 Calibrating a sensor with a standard signal The instrument returns to Measuring mode. 9.3.2 2-point calibration This example is based on a glass combination electrode with a connected two-wire transmitter. - The transmitter is in "Measuring mode". ✱ Perform calibration as follows: 2-point calibration The buffer solutions (reference solutions) used for calibration must differ by at least 2 pH!
  • Page 62 9 Calibrating a sensor with a standard signal Now the source of temperature acquisition can be selected (manually, or using the temperature input of the PSU board, or the temperature input via the optional board). This source will be active for the duration of the calibration. An example follows: manual temperature entry.

  • Page 63: Conductivity Operating Mode

    9 Calibrating a sensor with a standard signal keys; then press to continue. The zero point and slope determined by the instrument are displayed. ✱ Use the key to accept the calibrated values or reject them with the key. EXIT The instrument returns to Measuring mode.
  • Page 64 9 Calibrating a sensor with a standard signal ✱ When the measured value is stable, press the ✱ ✱ The measured conductivity value flashes on the display. ✱ Use the keys to set the value to the actual conductivity. ✱ Press the key;...
  • Page 65 9 Calibrating a sensor with a standard signal 9.4.2 Calibration of the temperature coefficient Linear temperature coefficient This example is based on a conductivity cell with a connected two-wire transmitter. - The transmitter is in "Measuring mode". ✱ Immerse the conductivity cell in the sample medium. Start the calibration, See "Ways to start the calibration"...
  • Page 66 9 Calibrating a sensor with a standard signal ✱ Press the key. The conductivity (399 μS/cm) at the current temperature (24.3°C) now appears on the right of the LC display. The temperatures T1 (25°C) and T2 (70.0°C) that have yet to be triggered are shown on the left.
  • Page 67 9 Calibrating a sensor with a standard signal The transmitter is in "Measuring mode" and displays the compensated conductivity of the solution. Calibration is complete After rinsing, the sensor can again be used to take measurements. With non-linear temperature coefficient (TEMP. COEFF. CURVE) This example is based on a conductivity cell with a connected two-wire transmitter.
  • Page 68 9 Calibrating a sensor with a standard signal ✱ Heat the sample medium continuously (3) the current uncompensated conductivity (4) the current temperature of the sample medium (5) the first target temperature During calibration, the rate of temperature change in the measurement solution must not exceed 10°C/min.

  • Page 69: Concentration Operating Mode

    9 Calibrating a sensor with a standard signal Concentration operating mode 9.5.1 Calibration of the relative cell constant This example is based on a conductivity cell with a connected two-wire transmitter. The conductivity of a caustic solution is converted into a concentration value [%] by the instrument.
  • Page 70 9 Calibrating a sensor with a standard signal displayed (as a %). ✱ Use the key to accept the relative cell constant or key to reject the values. EXIT The transmitter is in "Measuring mode" and displays the compensated conductivity of the solution. Calibration is complete After rinsing, the sensor can again be used to take measurements.

  • Page 71: Chlorine Measurement Operating Mode, Ph-Compensated

    9 Calibrating a sensor with a standard signal Chlorine measurement operating mode, pH-compensated 9.6.1 Final value calibration The pH signal and temperature signal are supplied via the main input, the chlorine signal (standard signal) via the optional input. - The transmitter is in "Measuring mode". Calibrate pH sensor ✱...
  • Page 72 9 Calibrating a sensor with a standard signal The slope determined by the instrument is displayed. ✱ Use the key to accept the value or the key to reject it. EXIT The instrument returns to Measuring mode. Calibration is complete After rinsing, the sensor can again be used to take measurements.

  • Page 73: Calibration Logbook

    10 Calibration logbook 10.1 General information The characteristic data for the last 5 successful calibration processed are documented in the calibration logbook. Calling up The instrument is in Measuring mode. ✱ Press the key for longer than 3 seconds. Select input Briefly press the key.

  • Page 74: Controller

    11 Controller 11.1 General information Apart from faulty installation, incorrect settings on the instrument may also affect the proper functioning of the subsequent process or lead to damage. You should therefore always provide safety equipment that is independent of the instrument and it should only be possible for qualified personnel to make settings.

  • Page 75: Software Controllers And Outputs

    11 Controller 11.2.3 Typical operator level parameters Binary outputs Explanation Signal source No signal No switching function desired Limit control "Simple" switching functions 1 to 4 Alarm function (AF1) Alarm function (AF2) Alarm function (AF7) Alarm function (AF8) Controller 1(2) "Higher order"...
  • Page 76 11 Controller If "Simple controller functions" have been configured, only the digital outputs can be controlled! The operator must configure which of the digital outputs will be controlled - the main board or optional board 1, 2 or 3 Higher order controller functions Main board Optional board Simple controller...

  • Page 77: Configuration Of Higher Order Controllers

    11 Controller 11.4 Configuration of higher order controllers 11.4.1 Structure Controllers Controller special functions (if necessary) Controller 1 Controller 2 Configuration Configuration Parameter set 2 Parameter set 2 Parameter set 1 Parameter set 1 Controller 1 Controller 1 Controller 2 Controller 2 Output 1 Output 2...

  • Page 78: Sample Configurations

    11 Controller 11.6 Sample configurations 11.6.1 Simple limit monitoring Configuration Limit monitoring Limit value 1 Signal source: Main value Switching function: Alarm function (AF8) Switching point: 10.00 Mom x cm Hysteresis: 0.50 Mom x cm Configuration of binary output, e.g. relay) Binary outputs Binary output 1 Signal source:...
  • Page 79 11 Controller Error: Inactive HOLD mode: Frozen Turn-on delay: 0 seconds Turn-off delay: 0 seconds Wiper time: 0 seconds Manual mode: No simulation 11.6.3 Controller with limit value function Configuration of software controllers Controller 1 Configuration Controller type: Pulse value Controller actual value: Main variable Stroke retransmission:...

  • Page 80: Setup Program

    - Setting a customized characteristic - etc. Data can only be transferred from or to the transmitter if it is supplied with voltage, See section 5 "Installation", page 14ff. Connection ACM-1 PC interface cable with USB/TTL converter, Sales no.: ACM-Int PC or notebook...

  • Page 81: Documenting The Instrument Configuration

    12 Setup program 12.2 Documenting the instrument configuration Start the setup program Establish the connection to the instrument (1). Read the instrument configuration (2).

  • Page 82: Special Features For "Datalogger

    12 Setup program 12.3 Special features for "Datalogger" Start the setup program Establish the connection to the instrument (1). Read the instrument configuration (2). Read data from datalogger (for example table view) - Mark datalogger icon (3) - Read values from the instrument (4)
  • Page 83 12 Setup program Export data (for processing in an external program).

  • Page 84: Eliminating Faults And Malfunctions

    13 Eliminating faults and malfunctions Problem Possible cause Action No measurement display There is no supply voltage Check the power supply current output Measurement display Sensor not immersed in Top up the container 0000 or medium; current output 4 mA level in container too low Flow-through fitting is blocked Clean the flow-through fitting...
  • Page 85 13 Eliminating faults and malfunctions Configuration change Configuration change Inhibit via binary contact Check configuration and unlock if necessary Do not release If appropriate release in the release level Test Inhibit via binary contact Check configuration and unlock if necessary Cancel in basic setting Check hardware Check fitting, adjust if necessary...

  • Page 86: Technical Data

    14 Technical data Inputs (main board) Main input Measuring range/control Accuracy Effect of temperature range d 0.6% of range + 0.3 μS x cell μS/cm 0.000 - 9.999 0.2%/10K 00.00 - 99.99 constant (K) 000.0 - 999.9 0000 - 9999 d 0.6% of range + 0.3 μS x cell mS/cm 0.000 - 9.999...
  • Page 87 14 Technical data Note the sensor operating temperature range! Measuring circuit monitoring Inputs Underrange/ Short circuit Broken lead overrange Conductivity Depends on measuring range Depends on measuring range Temperature Voltage 2 - 10 V 2 - 10 V Current 4 - 20 mA 0 - 20 mA Resistance transmitter Two-electrode systems...

  • Page 88: Approvals/Marks Of Conformity

    14 Technical data Semiconductor relay Optional board - Contact rating 1 A at 240 V - Protective circuit Varistor U d 50 V AC/DC Semiconductor switch (photo MOS) Optional board I d 200 mA Voltage Optional board - Output signals 0 - 10 V / 2 - 10 V t 500 : - Load resistance...

  • Page 89: Retrofitting Optional Boards

    15 Retrofitting optional boards Caution: The instrument must be de-energized on the input and output sides! Optional boards must only be retrofitted by qualified specialists. ESD: Optional boards can be damaged be electrostatic discharge. You must therefore prevent electrostatic charges from accumulating during installation and removal. Optional boards should be retrofitted at a grounded workstation.
  • Page 90 15 Retrofitting optional boards Optional board Code Sales No. Board view APM-100006 Semiconductor relay 1 A APM-100007 Supply voltage output +/- 5 V DC (e.g. for ISFET) APM-100008 Supply voltage output 12 V DC (e.g. for inductive proximity switch) APM-10000S Interface - RS422/485 This board must only be inserted in optional slot 3!

  • Page 91: Removing A Plug-In Module

    15 Retrofitting optional boards 15.2 Removing a plug-in module Squeeze the front panel together by the left and right sides and remove the plug-in module. 15.3 Inserting a plug-in module Caution: No "3" relays (2 x SPST/normally open) may be inserted in slot 2! Slot 1 for optional board Slot 2 for optional board Slot 3 for optional board...

  • Page 92: Retrofitting Optional Boards (Field Housing)

    15 Retrofitting optional boards 1. Screw out the front cover and remove the front cover 2. Take care of the gasket 3. Screw out the electronic fastening screws (4x) and pull out the electronic , Loosen cable harness at the cable glands, if needed...
  • Page 93 15 Retrofitting optional boards 4. Loosen the clamp screws (4x), push back the front plate and press together the latching surface of electronic module from left and right. Pull out the electronic insert from the electronic housing. The optional boards can now be installed in the electronic. The assembly takes place in reverse order.

  • Page 94: Appendix

    16 Appendix 16.1 Glossary Display of measured values STANDARD The measurement value, measurement variable and temperature of the measuring material are shown in standard display. Operating mode Display bottom (temperature input) Display top (analog input measurement value) Display of measured values TENDENCY The operator can quickly see the direction in which the measurement is changing.
  • Page 95 16 Appendix Display of measured values BARGRAPH - Values of the main inputs, input options or math channels (signal source) can be represented as a variable bar (a bar graph). Scaling the bar ✱ Activate "BARGRAPH" as the display of measured values. ✱...
  • Page 96 16 Appendix ✱ Confirm the selection with ✱ Select "SCALE END" with ✱ Use to enter the upper limit of the range to be displayed. ✱ Confirm the selection with To return to Measuring mode: Press the key repeatedly or wait for a "timeout". EXIT Display of measured values LARGE DISPLAY Values of the main inputs, input options or math channels (signal source) can...
  • Page 97 16 Appendix Zero point (1-point) calibration 1 2 3 4 5 6 8 9 10 11 12 13 14 - With one-point offset calibration, the zero point of the pH combination electrode is calculated, See section 8.4 "Calibrating the relative cell constant", page 51. Recommended only for special applications, such as ultra-pure water.
  • Page 98 16 Appendix this instrument. The transmitter uses the temperature coefficient to calculate the conductivity that would exist for a reference temperature from the current conductivity and the current temperature. This is then displayed. This process is called temperature compensation. Modern transmitters offer different ways to perform this temperature compensation.
  • Page 99 16 Appendix Limit value (alarm) function of the binary outputs HySt HySt HySt HySt Pulse length controller (output active with x > w and P control structure) 100% Switching period Process value X Proportional band X X - W Setpoint W If actual value x exceeds setpoint W, the P controller will control in proportion...
  • Page 100 16 Appendix to the control deviation. When the proportional range is exceeded, the controller operates with an output level of 100% (100% clock ratio). Pulse frequency controller (output active with x > w and P control structure) 100% Maximum pulse frequency 50% of pulse frequency No pulses Process value X...
  • Page 101 16 Appendix The cycle time (cleaning interval) can be adjusted in the range from 0.0 to 240.0 hours. A cycle time of "0.0" means the wash timer is deactivated. The wash time (cleaning duration) is adjustable from 1 to 1800 seconds. During the wash time the controller goes into the HOLD state, which is maintained for 10 seconds after completion of the wash time.
  • Page 102 16 Appendix Ultra-pure water per Ph. Eur. The limit comparators of the instrument switch, depending on the corresponding configuration, according to the limit valued of the European Pharmacopeia (Ph. Eur.) for purified water. Temperature Max. conductivity °C μS/cm Ph. Eur. warning alarm The Ph.
  • Page 103 16 Appendix Customer specs. table In this mode, the input value can be displayed based on a table (max. 20 value pairs). This function is used to display and linearize non-linear input variables. Values can only be entered in the table using the optional setup program. Cust.
  • Page 104 16 Appendix This storage records the minimum and maximum input quantities that have occurred. This information can be used, for example, to assess whether the design of the connected sensor is suitable for the values that actually occur. The max./min. value memory can be reset, See section 6.7.6 "Delete min/max values", page 35: Datalogger Recording duration = about 10 hours with a storage interval of 1 second...
  • Page 105 16 Appendix In some processes (different process steps) is is advantageous to have two complete parameter sets available. Define the parameter sets See section 11.5 "Parameter sets", page 77. The predefined parameter sets are activated by a binary input. Deposit detection Deposit detection can be activated for four-electrode cells.

  • Page 106: Parameters Of The User Level

    16 Appendix 16.2 Parameters of the User level When there are numerous instrument parameters to configure, it is advisable to make a note in the table below of all the parameters to be changed and to work through these parameters in the given order. The following list shows the maximum number of parameters that can be modified.
  • Page 107 16 Appendix Parameter Selection / value range New setting Factory setting Differential measurement Main input - (minus) Option input 1 Main input - (minus) Option input 2 Main input - (minus) Option input 3 Option input 1 - (minus) Main input Option input 2 - (minus) Main input Option input 3 - (minus) Main input Supply frequency...
  • Page 108 16 Appendix Parameter Selection / value range New setting Factory setting Connection type 2-wire 3-wire 4-wire Display format XXXX XXX.x XX.xx X.xxx Unit μS/cm mS/cm k: cm M: cm None Cust. specs. mg/l Scaling start -9999 - +9998 Scaling end -9998 - +9999 Temperature Temperature input compensation source...
  • Page 109 16 Appendix Parameter Selection / value range New setting Factory setting Zero point -9999 - 0 - +9999 Slope -999.9 - 100.0 - +999.9% Binary inputs Binary input 1 or 2 Function No function Manual mode Hold mode Hold mode inverse Alarm stop Freeze measured value Key lock...
  • Page 110 16 Appendix Parameter Selection / value range New setting Factory setting Controller actual value Main value Not comp. Main value Temperature Option input 1 Option input 1 not compensated Option input 2 Option input 2 not compensated Option input 3 Option input 3 not compensated Math 1 Math 2...
  • Page 111 16 Appendix Parameter Selection / value range New setting Factory setting Multiplicative disturbance No signal Main value Not comp. Main value Temperature Option input 1 Option input 1 not compensated Option input 2 Option input 2 not compensated Option input 3 Option input 3 not compensated Math 1 Math 2...
  • Page 112 16 Appendix Parameter Selection / value range New setting Factory setting Signal source No signal Main value Not comp. Main value Temperature Option input 1 Option input 1 not compensated Option input 2 Option input 2 not compensated Option input 3 Option input 3 not compensated Math 1 Math 2...
  • Page 113 16 Appendix Parameter Selection / value range New setting Factory setting Signal source No signal Limit value control 1 Limit value control 2 Limit value control 3 Limit value control 4 Controller 1 output 1 Controller 1 output 2 Controller 2 output 1 Controller 2 output 2 Controller alarm 1 Controller alarm 2...
  • Page 114 16 Appendix Parameter Selection / value range New setting Factory setting Signal source No signal Main value Not comp. Main value Temperature Option input 1 Option input 1 not compensated Option input 2 Option input 2 not compensated Option input 3 Option input 3 not compensated Math 1 Math 2...
  • Page 115 16 Appendix Parameter Selection / value range New setting Factory setting Baud rate 9600 19200 38400 Parity None Even Stop bits Profibus address 0 - 99 EEPROM marking Wash timer Cycle time 0.0 - 240.0 hours (0.0 = Wash contact is not active Wash time 1 - 60 - 1800 seconds Datalogger...
  • Page 116 16 Appendix Parameter Selection / value range New setting Factory setting Lighting With operation Display of measured value Standard Tendency Bargraph Trend chart Large display 3 measured values Time Display Top / Center / No signal Bottom Main value (standard for "Top") Not comp.
  • Page 117 16 Appendix Parameter Selection / value range New setting Factory setting Signal source Main value Not comp. Main value Temperature Option input 1 Option input 1 not compensated Option input 2 Option input 2 not compensated Option input 3 Option input 3 not compensated Math 1 Math 2 Differential signal...

  • Page 118: Disposal

    17. Disposal Note! • Avoid environmental damage caused by media-contaminated parts • Dispose of the device and packaging in an environmentally friendly manner • Comply with applicable national and international disposal regulations an d environmental regulations. Batteries Batteries containing pollutants are marked with a sign consisting of a crossed-out garbage can and the chemical symbol (Cd, Hg, Li or Pb) of the heavy metal that is decisive for the classification as containing pollutants: 1.

  • Page 119: Eu Declaration Of Conformance

    18 EU Declaration of Conformance We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole responsibility that the product: Transmitter/controller for conductivity, TDS, resistance, temperature and standard signals Model: ACM-1 to which this declaration relates is in conformity with the standards noted below:...

  • Page 120: Declaration Of Conformance

    19 UK Declaration of Conformance We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole responsibility that the product: Transmitter/controller for conductivity, TDS, resistance, temperature and standard signals Model: ACM-1 to which this declaration relates is in conformity with the standards noted below:...
  • Page 121 Manufactured and sold by: Kobold Messring GmbH Nordring 22-24 D-65719 Hofheim Tel.: +49(0)6192-299-0 Fax: +49(0)6192-23398 E-Mail: info.de@kobold.com Internet: www.kobold.com Version: K08/0722...

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