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Instruction manual
M1140
M1200
M1220
M1300
M1320
M1321
M1322
M1323
M1440
Multilogger

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  • Page 1 Instruction manual M1140 M1200 M1220 M1300 M1320 M1321 M1322 M1323 M1440 Multilogger...
  • Page 2 © Copyright: COMET System, s.r.o. It is prohibited to copy and make any changes in this manual, without explicit agreement of company COMET System, s.r.o. All rights reserved. COMET System, s.r.o. makes constant development and improvement of their products. Manufacturer reserves the right to make technical changes to the device without previous notice.
  • Page 3: Table Of Contents

    Control and indication parts ............24 Basic display operation ............... 25 Main menu .................. 27 CONNECTING WITH THE COMPUTER ..........31 SOFTWARE COMET VISION ..............32 DEVICE SETUP USING SOFTWARE ............34 Device configuration basics ............34 Device configuration items ............34 APPLICATIONS NOTES ................
  • Page 4: Introduction

    Introduction The Multilogger has been designed for measuring and recording physical and electric quantities with an adjustable logging interval from 1 second to 24 hours. The device is equipped with 4 inputs (connectors) for external probes or signals. Moreover, some versions also include an internal atmospheric pressure and/or CO concentration sensor.
  • Page 5 Multilogger drawing: * only certain models IE-MLG-M1xxx-07...
  • Page 6: General Safety Precautions

    General safety precautions The following list of precautions serves to reduce risk of injury or damage of described instrument. To prevent injuries use instrument accordingly with rules in this manual.  Installation and service need to be performed by qualified persons only.
  • Page 7: Getting Started

    PC via the Ethernet interface, the power adapter +5V DC is necessary (supplied accessories). For more information, see Chapter “POWER SUPPLY OF MULTILOGGER”.  Install Comet Vision software to your computer - it is available at www.cometsystem.com. If you purchased a license for full version, register it.
  • Page 8: Multilogger In Stationary Application

    PC via the Ethernet interface, the power adapter +5V DC is necessary (supplied accessories). For more information, see Chapter “POWER SUPPLY OF MULTILOGGER”.  Install the COMET Vision software to your computer - it is available at www.cometsystem.com. If you purchased a license for the extended SW, register it.
  • Page 9: Installation Instruction

    Installation instruction Location of Multilogger must match the operating conditions and not allowed manipulations. Working position of the device:  Multilogger placed on a horizontal, nonflammable surface ( horizontal working position is not suitable for devices with thermocouple inputs and for devices with cable-less probes).
  • Page 10 The way of mounting the holder to Multilogger and mounting holes dimensions: MLP001 MLP002 IE-MLG-M1xxx-07...
  • Page 11 MLP004 IE-MLG-M1xxx-07...
  • Page 12: Recommendations For Mounting

    Recommendations for mounting  Do not mount Multilogger near sources of interference (Multilogger must not be mounted directly to power switchboard nor to its nearness. Also do not mount data logger near power contactors, motors, frequency converters and other sources of strong interference). ...
  • Page 13  Do not use cables longer than 30 m generally; for RTD sensors is recommended max. 15 m; cables must be installed only in interior areas.  Do not interconnect the inputs with other measuring systems.  Use shielded cables for the voltage and current inputs - connect the shielding to the Multilogger but not to the end devices if these do not have a special terminal for it.
  • Page 14  Do not use common leads for several inputs.  It is recommended to earth larger systems with Multilogger at one point - the GND terminal of the alarm output can be used for this purpose. This grounding will work correctly if the system would not be grounded currently at another point too.
  • Page 15: Inputs Of Multilloger

     DC Voltage - 18 mV to +18 mV  DC Voltage - 60 mV to +140 mV Universal input with terminals  DC current 0 to 20 mA  DC voltage 0 to 10 V  binary signals M1140 M1200 M1220 M1300 M1320 M1321...
  • Page 16: Input Connectors

    Input connectors The Multilogger does not have galvanically isolated inputs. For this reason, only devices that are not connected to any other circuit may be connected to the inputs of Multilogger. Simplified circuit diagram of inputs is shown in Appendix 3. MiniDIN connector _______________________________ It is used for connecting the DigiS/M…, DigiL/M…, Pt1000/M probes...
  • Page 17 Two voltage ranges are available on each universal thermocouple connector for measuring small voltages:  range -60 mV to +140 mV  range -18 mV to +18 mV white uncompensated connector connected according to the picture. Terminals ______________________________________ Inputs (0 to 20) mA, (0 to 10) V, binary inputs and the counter are equipped with a two-part, self-locking WAGO terminal block.
  • Page 18 Connection of the transmitter with voltage output: Connection of the transmitter with the current output (active): Connection of the transmitter with the current output (passive): IE-MLG-M1xxx-07...
  • Page 19: Alarm Output

    Alarm output This output is accessible on terminals on the bottom side of the Multilogger. Here are available these signals: OUT - open collector transistor, +5V power supply from external power source and GND terminal (see also the diagram in Appendix 2). As the default, this output transistor is switched during selected alarms.
  • Page 20 IE-MLG-M1xxx-07...
  • Page 21: Power Supply Of Multilogger

    Power supply of Multilogger The Multilogger is powered from three AA batteries and optionally also from an external +5 V DC power supply, which can be also used for charging the batteries. A simplified schematics of the internal supply circuits is showed in Appendix 2.
  • Page 22 b) the charging process will start if the NiMH charging accumulators are selected in the device configuration c) when the Multilogger is turned off, the batteries cannot be charged d) the Multilogger allows for two battery charging modes - high current fast charging mode and low current slow charging mode ...
  • Page 23  Battery replacement: If you want to keep the correct time setting in your device, do not let the battery discharge completely. When replacing the battery, do it quickly. The timer circuit runs without battery for max. 5 minutes if the device is switched off.
  • Page 24: Keyboard Operation

    Keyboard operation Control and indication parts The front panel of the Multilogger includes 6 keys, 3 indication LED diodes and a graphic display.  The red key with the switch symbol is used for Multilogger turning on/ off. The MIN/MAX keys (with the arrows) are used for quick show of the minimal and maximal measured values and also for moving through menu items.
  • Page 25: Basic Display Operation

    Basic display operation Current measured values (or min/max) and their units are shown on the device display. To make it easier, the short description of measured quantity, the corresponding input number or a user description of the input, can be optionally displayed.
  • Page 26 active recording of analog values (in the “during alarm only” or “controlled by an external input” recording modes) inactive recording of analog values (in the “during alarm only” or “controlled by an external input” recording modes) external power supply present (if the status line is occupied by icons of a higher priority, it is not displayed) minimal measured values are displays maximum measured values are displays...
  • Page 27: Main Menu

    Main menu Some device settings can be viewed or modified directly on the device using the keyboard. Main menu items: 1. System Information 2. Viewing settings 3. Change the Display 4. Device Settings 5. Clear Min/Max 6. Clear Latched alarm 7.
  • Page 28 c) Real time clock circuit state: tick - OK, exclamation mark - low voltage of the real time clock circuit detected, the time could be incorrect! d) Activities of the Alarm out signal: tick - active, field without a tick - inactive. e) MUTE activated: tick - was activated (alarm is still active), field without a tick - was not activated (or the alarm is inactive).
  • Page 29 3. Display settings _______________________________ Allows to set the parameters of the displaying:  Font size (large, medium, small)  Displaying input description of the measured quantity (yes, no)  Order of the displayed channels (based on the input number, based on the channel number, selection) 4.
  • Page 30 6. Deactivation of Latched alarm ____________________ If the “Latched alarms” function is enabled in the device configuration, the active alarms are not reset when the measured values return back to the allowed limits. Instead, they remain active until they are deactivated by the user.
  • Page 31: Connecting With The Computer

    Connect the Multilogger into your LAN (Ethernet cable is not included as device accessory). d) Launch the COMET Vision software and add the Multilogger to the list of your Comet devices. The Multilogger automatically identifies which communication interface is connected and will use it for communication.
  • Page 32: Software Comet Vision

    Automatic detection can be used for devices connected via USB. Once the device is connected to your computer, the device is automatically added to the list of Comet devices (within about 5 seconds - time necessary for the device initialization).
  • Page 33 How to work with the program ______________________ The main menu of the program is on the right side with items: “Home”, “Devices”, “Files” and “Online Displays”. These components control appearing bookmarks. Each item has its bookmarks, one of them named “Home” is similar for all items. The other options are specific for each item.
  • Page 34: Device Setup Using Software

    Complete configuration of the device can be done using the COMET Vision software. Some parameters can be changed from the device keyboard or from its web pages. When editing the Multilogger...
  • Page 35 General - Preferences ____________________________ Here you can select language localization Language on the device terminal, Default temperature unit °C/°F and, for some models, Atmospheric pressure unit. If your model does not measure atmospheric pressure but it is necessary to know it (for calculated humidity values and CO concentration), you need to specify Ambient average pressure.
  • Page 36 General - Advanced - Device start ___________________ Here you can disable the “Off key” of the device. General - Advanced - LCD Display __________________ These settings are used for optimizing the backlight of the display in relation to your application. As a default, the Multilogger is set in a way that the backlight (LCD backlight activity) is activated only for several seconds upon the last key pressing.
  • Page 37 Record ________________________________________ This options are used for controlling the record functions of the Multilogger. Recording can be turned on and off as needed (Recording On/Off). However, if the record is turned off and then you turn it on again, this takes up 0.1% of the free memory capacity. Use the Cyclic record if you require the device to continue the recording even when the data memory is completely full.
  • Page 38 Here you can also allow remote erasing of the alarm memory and remote deactivation of alarm signalization from the software COMET Vision or from the web (Remote Mute & Erase of Latched alarms); moreover, you can permit or forbid alarm deactivation from the device keyboard (Local Mute enabled).
  • Page 39 It can be optionally applied to audio signalization, the ALARM OUT output or both. It can be performed from the keyboard, from the web or from the software COMET Vision. To protect access to these functions, you can use the PIN2 code, which the operation personnel must enter.
  • Page 40 Security ________________________________________ The Multilogger allows an easy security option by the means of PIN codes: PIN1: protection against unauthorized changes of the device configuration (from a PC or device keyboard), erasing of data memory and counter erasing PIN2: protection against unauthorized alarm deactivation (Mute), confirmation of alarm memory (Latched alarms) and erasing of the Min/Max values Ethernet - General...
  • Page 41 _______________________________ The Datalink protocol is used for connecting the Multilogger with the Comet database system. Connection to the server is opened by the Multilogger in regular intervals. Further control of the communication is then performed by the server. If you want to use this function, you have to allow it (Datalink On).
  • Page 42 Ethernet - Web __________________________________ The Multilogger has its own web pages, where you can monitor currently measured values and alarm states, and where you can change some configurations. First of all, you have to allow the website option (Web pages On). If necessary, you can change the port number (Web server port), which is set at 80 by default.
  • Page 43 the measured values to different values using a two-point linear transformation, turn on the User calibration function (User calibration). For example, you can use it for converting current values measured using the current loop to a different physical quantity or for applying recalculation to the measured values.
  • Page 44: Applications Notes

    Applications notes Recommended settings for the portable application______ In this application, the Multilogger is powered from batteries and a fast response time and an easy battery recharge after the measurement are required. Recorded data are downloaded after measurement. We recommend to use the Multilogger with NiMH accumulators; specify the following device configuration: ...
  • Page 45 PIN codes.  If your LAN is backed up and works correctly during mains failure, it is possible to send warning e-mails and records to Comet database (DataLink). See part Device setup using software, General - Advanced –...
  • Page 46 Recommended settings for a long time battery powered application ______________________________________ In this application, the Multilogger is powered only from batteries and a fast response to changing measured quantities is not required, however, it is required that the device runs from the batteries as long as possible.
  • Page 47 If the Multilogger is not equipped with an internal pressure sensor, you have to enter this value using the SW in the device configuration, item General - Preferences. You can enter either the current pressure value at the given location (without conversion to the sea level) or the current altitude.
  • Page 48 Multilogger reports this error, the batteries are empty. You can check the battery status in the System information menu or in the software COMET Vision on the Device home page. If the battery voltage drops under 3.45 V, the Multilogger reports a self-test error. A drop of the power supply voltage is also indicated by the given symbol the device status line.
  • Page 49 A similarly for sensors with a voltage or current output - unwanted couplings can cause incorrect measurements. If the Multilogger reports an error state, you can find more information in Appendix 1 - Selected error messages. Another group of problems are random spikes of the measured values. Most commonly, they are caused by a source of electromagnetic interference located in the proximity of the device or cables.
  • Page 50: Operation And Maintenance Recommendations

    Operation and maintenance recommendations Device operation in various applications _______________ Before application it is necessary to consider if Multilogger is suitable for required purpose, adjust optimal configuration and create instructions for its periodical metrological and functional inspections. Since the Multilogger can be powered from the power mains, it is necessary (depending on the character of the application) to secure the appropriate electric revision of its installation and its regular inspections.
  • Page 51 Recommendations for metrological verification _________ Metrological verification is performed in accordance with application requirements specified by the user. In some cases, calibrations must be performed by the accredited laboratory. The manufacturer recommends to perform these verifications once a year. Note: accuracy of Multilogger input means accuracy of input itself without probes.
  • Page 52  Verification of cabling - check the connection quality of cables, check visually entire cable length for damage and the route of cables for interference, especially whether some parallel power wires are not near.  Visual inspection of sensors - perform their visual inspection and make sure no water has leaked inside the sensors;...
  • Page 53: Technical Parameters

    Technical parameters Power supply The Multilogger is powered from batteries located under the removable cover on the rear side of the device. An external power supply source can be also connected to the Multilogger. When the device is connected to an external power supply, the batteries are not used.
  • Page 54 Backing up of date and time in the Multilogger: < 5 minutes after removing the batteries and with the device turned off ________________________________________________________________________________________________ If the Multilogger is without a power for a longer time, the date and time settings in the device could be lost and will have to be set up again.
  • Page 55: Alarm Out Output

    Fast charging mode current: approximately 350 mA ________________________________________________________________________________________________ Fast charging has to be activated by the Multilogger user. During the fast charging, the Multilogger does not take any measurements nor recording and does not communicate with the computer. Fast charging time: Up to 6 hours Fast charging restriction: Allowed in ambient temperature from 0 °C to 40 °C.
  • Page 56: Communication Interfaces

    Communication interfaces The Multilogger is equipped with USB, Ethernet and RS232C interfaces with automatic detection of a connected cable. Only one of these interfaces can be used for communication at one time. The USB interface has the highest priority (if the Multilogger is connected via its USB port, the other two interfaces are automatically disabled) while the Ethernet interface has the lowest priority (for its proper function, it is necessary that neither the RS232C nor the USB interfaces are connected).
  • Page 57: Measuring, Data Memory And Real Time Clock

    Ethernet _______________________________________ Compatibility: 10/100 MBit Ethernet, galvanically isolated Connector for Ethernet: RJ45 Measuring, data memory and real time clock Measuring interval (except CO 1 s in standard mode (default) 10 s in the energy saving mode measuring interval: 2 minutes in standard mode 10 minutes in the energy saving mode Recording interval: 1 s, 2 s, 5 s, 10 s, 15 s, 30 s,...
  • Page 58: Operation And Storage Conditions

    Immunity: EN 61000-4-2: class A (4/8 kV) EN 61000-4-3: class A (3V/m) EN 61000-4-4: class A (0.5/1 kV) EN 61000-4-5: class A (external power supply only) EN 61000-4-6: class A (3 V) Operation and storage conditions Operation temperature: (-10 to +60) °C Operation humidity: (5 to 85) %RH without condensation Operation environment:...
  • Page 59: Technical Parameters Of The Inputs

    Connectivity, input ranges and accuracy are determined by connector types which are specific for each model. Required measured quantities can be selected for each input using the COMET Vision software. These quantities can be recalculated using two-point linear transformation, displayed, recorded to the memory or used for alarming.
  • Page 60 The following devices can be connected to the input with the MiniDIN connector:  Digi /M digital probe for measuring temperature and humidity. Measured quantities: Temperature Relative humidity Calculated quantities: Dew point _______________________________________________________________________ For negative temperatures, the Multilogger calculates a dew point, no frost point. Absolute humidity Specific humidity Mixing ratio...
  • Page 61  Custom Pt1000 probe temperature measuring The input parameters are identical to the above described Pt1000/M. For these probes, you have to compensate the cable length using the User calibration manual settings. The connector wiring is shown in Appendix 4. The manufacturer recommends to preferably use the Pt1000/M intelligent probes.
  • Page 62 The following devices can be connected to this input:  Thermocouple of the “K” type (NiCr-Ni) Measured quantity: temperature Range: (-200 to 1,300) °C Accuracy (without probes) ± (0.3% from the measured value + 1.5 °C) Resolution: better than 0.1 °C *) Cold junction: compensated in the temperature range of (-10 to 60) °C...
  • Page 63 Resolution: better than 0.1 °C *) Cold junction: compensated in the temperature range of (-10 to 60) °C ______________________________________________________________________________________ *) to achieve this value, the corresponding number of decimals must be set  Thermocouple of the “B” type (Pt30%Rh-Pt) Measured quantity: temperature Range: (100 to 1,800) °C...
  • Page 64  Thermocouple of the “N” type (NiCrSi-NiSiMg) Measured quantity: temperature Range: (-200 to 1,300) °C Accuracy (without probes) ± (0.3% from the measured value of + 1.5 °C) Resolution: better than 0.1 °C *) Cold junction: compensated in the temperature range of (-10 to 60) °C ______________________________________________________________________________________ *) to achieve this value, the corresponding number of...
  • Page 65 Resolution: better than 0.5 uV *) Input impedance Ω approximately 10 Minimum allowable input voltage: -0.2 V Maximum allowable input voltage: +3 V Connector: miniature uncompensated thermocouple connector (white color) ______________________________________________________________________________________ *) to achieve this value, the corresponding number of decimals must be set IE-MLG-M1xxx-07...
  • Page 66 Universal input with a terminal ______________________ The input is equipped with two-part removable terminal block with four wires. The inputs are not galvanically isolated from each other, nor from other signals connected to the Multilogger. In order to secure correct measurements, you need to prevent undesirable coupling.
  • Page 67  DC current in the range of 0 to 20 mA Range: (0 to 20) mA DC Accuracy: ± 20 uA Resolution: better than 0.1 uA *) Input impedance approximately 100 Ω Minimum allowable input current: 0 mA (disconnected circuit) Maximum allowable input current: limited to approximately 40 mA Maximum cable length:...
  • Page 68 Impedance of the “switched on” contact: < 10 kΩ Impedance of the “switched off” contact: > 300 kΩ Voltage on the disconnected contact: approximately 3 V _________________________________________________________________________________ In order to work properly, the device equipped with a “transistor with an open connector” can require a higher voltage than Multilogger is able to supply.
  • Page 69 Internal barometric sensor_________________________ Models equipped with this sensor: M1321 barometric pressure M1323 barometric pressure Parameters: Measured quantity: barometric pressure (absolute) Range: 600 hPa to 1,100 hPa Accuracy: ±1.3 hPa at 23 °C Other options: recalculation to the sea level Supported physical quantities: hPa, kPa, mbar, mmHg, inHg, inH O, PSI, oz/in Internal CO...
  • Page 70: Appendixes

    Appendixes Appendix 1: Selected error messages Error Description and solution The value is out of the input range (low limitation). - shorted Pt1000/M probe - negative input voltage (thermocouples, 0 to 10 V) Error 1 - reverse input current (for 0 mA to 20 mA range) Check the connected probes and signals! The value is out of the input range (high limitation).
  • Page 71 Error Description and solution The CO concentration sensor is not available or does not Error 12 work correctly. Error 16 Send the Multilogger for repair. The source value for the calculated channel is not available. Error 19 Check calculated channel settings and its source values. Error 20 Calculation error, incorrectly calibrated device.
  • Page 72: Appendix 2: Output And Power Supply Circuits

    Appendix 2: Output and power supply circuits IE-MLG-M1xxx-07...
  • Page 73: Appendix 3: Input Circuits

    Appendix 3: Input circuits IE-MLG-M1xxx-07...
  • Page 74: Appendix 4: Connecting Of Pt1000 Rtd Probe

    RTD Pt1000 probe will be necessary. In this case you can connect this probe in accordance with drawing shown below. Use four-pin MiniDIN connector (Comet order code K5411). The input of the Multilogger have to be set to “Custom Pt1000” using the SW (instead of Pt1000/M).

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