Comet U0121M User Manual
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Comet U0121M User Manual

Gsm modem dataloggers
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User's Guide
U0110M
U0121M
U0141M
U0843M
U3120M
U3121M
U3631M
U4440M
U5841M
U6841M
U7844M
U8410M
GSM modem dataloggers

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Summary of Contents for Comet U0121M

  • Page 1 User‘s Guide U0110M U0121M U0141M U0843M U3120M U3121M U3631M U4440M U5841M U6841M U7844M U8410M GSM modem dataloggers...
  • Page 2 All rights reserved. The COMET SYSTEM, s.r.o. company is continuously developing and improving its product. COMET SYSTEM, s.r.o. reserves the right to carry out technical changes in equipment or product without any previous notice. Contact address of this device’s producer: COMET SYSTEM, s.r.o.

  • Page 3: Table Of Contents

    Displaying the device data ............12 Menu Options ................16 MODELS PRODUCED ................17 COMET VISION PROGRAM ..............26 SETTING UP THE DEVICE ..............27 How to set up the device by means of a program ......27 The device setup from a program (Configuration) ....... 27 APPLICATION NOTES ................

  • Page 4: Introduction

    GPRS data connection using JSON messages when changing the alarm status. - to send data to the COMET Cloud storage system - to send, at a configurable interval, informative SMS messages containing device identification, currently measured values and alarm states to up to four selected receivers.

  • Page 5: Datalogger Uxxxxm

    Datalogger UxxxxM (U0141M model) IE-LGR-UxxxxM-18...

  • Page 6: Safety Measures And Unauthorized Manipulations

    Safety measures and unauthorized manipulations Read the following safety directions carefully before putting the device into operation. Follow these instructions when using the device! • Legislative conditions. This datalogger contains a radio transmitter working in GSM frequency bands and using power values that are shown in its Technical parameters. These bands and power values are used in the countries of the European Union.

  • Page 7: Guide To Installation And Usage Of The Device

    • If you use the optional IoT SIM card accessory (order code LP105), you get the option of a mobile connection to send data to the COMET Cloud. With this card it is possible to transfer 500 MB of data, ie. the endurance...

  • Page 8: Installing The Datalogger, Placing The Probes

    • Removing the card from the SIM card holder • Screw up the rear cover of the device - at first check the seal in the nut for integrity, then screw down the lid with the aid of four self-cutting screws. ATTENTION –...
  • Page 9 • This device may be operated as a portable one. In this kind of operation avoid the device falling. Try to maintain the proper working position. • You can screw the device on the wall or some other solid base •...

  • Page 10: Device Set-Up

    • Connect the device to the computer - on the datalogger side, use a USB cable provided with a USB-C terminal. • Setting up the device - with the aid of the COMET Vision program, set up the device identification, the names of the points to be measured, the recording mode, the alarms and there signalling.

  • Page 11: Device Disposal Procedure

    the charging speed with the power on is deliberately slowed down to avoid excessive measurement influence. If you want to charge the device as soon as possible, turn it off first. When the device is turned off, the fast charging mode is automatically activated. Fully charged battery is indicated on the display of the device usually within 6 hours.

  • Page 12: Operating The Datalogger From The Keypad

    Operating the datalogger from the keypad Displaying the device data Data memory occupancy - this display section offers information about the current condition of the free space existing in the data memory. The blinking of the Memory symbol indicates that the preset memory occupancy limit has been exceeded.
  • Page 13 A continuous recording with a preset interval is ON and running. The recording is ON in the device and it is running at present. This kind of display is utilized, when the record activity is dependent on the alarm or the external input condition. The recording is ON in the device but it is not running at present.
  • Page 14 Battery condition this symbol provides overview information about the current battery charging condition. The charging is indicated by flashing one of these symbols. Battery conditions during battery operation of the device: Fully charged battery Partly discharged battery Heavily discharged battery Totally discharged battery, the device will be switched OFF.
  • Page 15 take place only manually by the aid of push buttons situated beside the display unit. The upper push button serves to toggle between the measured values („the screens“): The lower push button serves to toggle between the currently measured values and the Min/Max values: The device can also be set up to toggle the „screens“...

  • Page 16: Menu Options

    Menu Options The menu can be entered by pressing a combination of both keys. In any case, using the keypad must be enabled in the device configuration. Individual menu items, too, may be disabled in the device setup. It is e. g. possible to switch on the device in this way, but it is not possible to switch it off.

  • Page 17: Models Produced

    The device is placed directly in the measured space. During the charging period the measurement accuracy may be affected by up to 1 °C due to parasitic heat. U0121M Two-channel thermometer for external probes This model can measure one or two temperatures, which are sensed by Pt1000/E series external probes.
  • Page 18 U0141M Four-channel thermometer for external probes This model can measure up to four temperature values transmitted by Pt1000/E series external probes. The response temperature jump depends on the connected probe design. As a rule, this model is few times faster than that using the inner sensor. It is often used to monitor locations where the device itself is not directly in the measuring space and only probes are in.
  • Page 19 Thermometer – hygrometer for external probe This model measures temperature, relative humidity and dew point temperature using an outdoor COMET Digi/E series probe. Its response to the temperature or relative humidity jump is significantly faster than by models with internal sensor. This model is often utilized to monitor areas in which only the probe is installed, whereas the main unit is installed elsewhere.
  • Page 20 immediately. The device alone is suitable for measuring in places where there is no rapid change in temperature or relative humidity, and there is no condensation of water vapours. If water vapour condensation occurs inside the datalogger, then the resulting water will remain there and may damage its electronics.
  • Page 21 at the installation location. As the internal battery creates a parasitic heat during the charging period, the measurement accuracy may be affected by up to 1 ºC. In battery mode, this model has significantly shorter battery life than models without CO concentration measurement.
  • Page 22 U0843M Two-channel binary-input thermometer for external probes This model can measure up to two temperature values, which are sensed by outdoor Pt1000/0 series probes. In addition, it is provided with two binary inputs for monitoring voltage-signal changes or changes of a signal coming from voltage-free...
  • Page 23 U5841M Datalogger with 3 inputs 0 – 10 V and 1 binary input This model is used to measure up to three voltage inputs 0-10 V DC while allowing one binary input to be monitored. The voltage inputs are not galvanically separated from one another.
  • Page 24 U6841M Datalogger with 3 inputs 0 - 20 mA and 1 binary input This model is used to measure up to three signals from current loops (0 to 20) mA DC while allowing one binary input to be monitored. The current inputs are passive and are not galvanically separated from one another.
  • Page 25 U7844M Two-channel binary-input counter This model includes four inputs. Two of them can function as counters, and all four inputs can function as binary inputs. Both counter and binary inputs serve to monitor voltage signals or signals coming from a voltage-free contact. The binary input changes are registered immediately, irrespectively of the recording interval setting.

  • Page 26: Comet Vision Program

    The USB-connected device is automatically detected within approx. 5 seconds (required for connection initialization time). When connected to a computer, the device is automatically added to the COMET device list. A device can be added manually after clicking on the „Add device“...

  • Page 27: Setting Up The Device

    Complete device setup can be performed by the aid of the COMET Vision user software (hereinafter SW). During configuration editing the device can work normally, nevertheless the access to some functions (record download, contemporary configuration editing by other users) is limited.
  • Page 28 General - Preferences _____________________________ In this panel you can choose the unit with which the device will measure the temperature (Default temperature unit °C/°F). With some devices the pressure unit can be chosen, too (Default atmospheric pressure unit). When the device does not measure the atmospheric pressure, but when it is necessary to know its value to measure some quantities (calculated humidity and CO ), the atmospheric pressure value must...
  • Page 29 in the measurement values and a long battery lifetime is what matters, you can set the measurement interval to 1 minute. The CO concentration channel measures with a 2-minute interval and can be extended up to 10 minutes to save more battery life. For details concerning power consumption, see Technical parameters.
  • Page 30 Channels_______________________________________ In this panel you can set all input channels. The assignment of the measurement value and its range to a channel is factory-set and cannot be changed. Depending on the device type, up to three calculated channels are available (for details see Annex 5). Supply a suitable name of the location to be measured (or calculated value) for each channel and decide whether it will be switched on for measurement and for recording.
  • Page 31 Furthermore, choose whether the alarm should arise from exceeding the limit value or from dropping under it (value is greater than / value is lower than). Enter this limit value. In binary inputs, only the input state must be defined. Subsequently, the alarm delay time must be entered (for the duration of).
  • Page 32 alarm occurring in the device is displayed by ALARM warning on the device display (except for an exceeded memory occupancy limit, which is signalled by a flashing Memory sign). An alarm can be signalized by a fast flashing of the LED diode on the device panel (Optical signalling - LED).
  • Page 33 the alarm signalling for the duration of the alarm condition (the corresponding alarm symbol remains on the display). Deactivation of the signalling can be according to the device configuration: - permanent - the optical and/or acoustic signalling is deactivated until new alarm occurs. In this case, the "Reactivate muted alarm signalling"...
  • Page 34 Modem - General _________________________________ In the configuration enter the PIN code for your SIM card, if required (given by the settings of the SIM card used). By default, your device is set to not require the PIN code. If the PIN code is set on the SIM card and the required pin is set incorrectly in the device configuration, the SIM card will be blocked when attempting to connect to the GSM network, see Display warnings chapter.
  • Page 35 Modem – Text message - Keep alive SMS ______________ In this panel you can set Keep-alive SMS sending parameters. It means sending information messages at regular intervals, regardless of alarm status. Set the interval for sending Keep-alive text messages. Such messages can be sent by the device to all selected recipients on regular interval basis.
  • Page 36 SOAP server, see chapter 8.2 Automatic data sending to the database in Comet Database manual (e.g. http://192.168.1.1/soap). To send data to the COMET Cloud storage system, select this item as the destination server and the URL will be set automatically.

  • Page 37: Application Notes

    Application notes Operation with a constantly connected charger __________ Datalogger is primarily intended to be operated as an autonomous unit powered by its built-in batteries. Nevertheless, you can also operate it with a charger which is constantly connected to it, or with a computer. The datalogger’s internal charging circuitry controls the battery charging process based on its instantaneous condition, thus protecting it against damage.
  • Page 38 USB equipment in the computer. This may be corrected by closing the COMET Vision utility program (including the communication service) and starting it subsequently. Restart the computer, if the above mentioned measure is not the proper remedy. Check whether new HID equipment will appear in Device administrator after the device has been connected to the computer.
  • Page 39 • If the blue diode does not start flashing at all, then the datalogger‘s radio section has not been activated at all. It may be caused by an improper setting: A non-functioning SIM card has been inserted, the SIM Card has been blocked because a wrong PIN has been entered, the alarm is not activated at all, no phone number is assigned to the alarm, and the like).

  • Page 40: Recommendations For Operation And Maintenance

    Recommendations for operation and maintenance Datalogger operation in several application areas________ Before putting the device into operation, it should be considered, if its usage is suitable for the intended purpose. In connection with this consideration the device‘s optimum settings should be determined. In the case that the device is part of a larger measurement system, instructions for its metrological and operational checks should be developed...
  • Page 41 Positioning of humidity sensors: The positioning of humidity sensors depends again on the application requirements. Humidity measurements in refrigerators without additional humidity stabilization can be very questionable. When the cooling is switched on/off, there may be significant changes in humidity in the range of tens of percent, even if the mean value is correct.
  • Page 42 Service recommendations _________________________ Engineering support and service activities are provided by the device distributor. His contact person‘s address is given in the Certificate of warranty included with the product. WARNING - Unskilled intervention into the device may lead to loss of warranty! IE-LGR-UxxxxM-18...

  • Page 43: Technical Parameters

    Technical parameters Power supply The device is supplied from an internal Li-ion battery, which is placed under the rear cover. The battery may be replaced by the producer or an authorized service provider only. Battery _________________________________________ Battery model used: BAT26001S2P Li-ion 2 PACK US18650VTC5 5200 mAh SONY (2x 2600mAh) Operating lifetime relating to a single charge of the Li-ion accumulator:...

  • Page 44: Usb Communication Interface

    the power on is deliberately slowed down to prevent excessive influence of measured values. If you want to charge the device as soon as possible, turn it off first. When the device is turned off, the fast charging mode is automatically activated. Fully charged battery is indicated on the display of the device usually within 6 hours.

  • Page 45: Radio Section

    Radio section The datalogger includes a GSM modem intended for data transfer and sending SMS messages. This modem is only powered up and registered in the GSM network only when SMS messages' sending off is required. Otherwise it is switched off. GSM modem: Quad-band 850/900/1800/1900MHz GPRS Mobile Station Class B...

  • Page 46: Parameters Of Datalogger Inputs

    Recommended calibration interval: 2 years U0121M ________________________________________ Measured values: 2 x temperature sensed by an external COMET Pt1000/E series probe Temperature range: (-200 to +260) °C, Pt1000/3850 ppm sensor Measuring current: ca 0.5 mA with pulses of ca 60 ms...
  • Page 47 Recommended calibration interval: 2 years U0141M ________________________________________ Measured values: 4 x temperature sensed by an external COMET Pt1000/E series probe Temperature range: (-200 to +260) °C, Pt1000/3850 ppm sensor Measuring current: ca 0.5 mA with pulses of ca 60 ms...
  • Page 48 U3120M ________________________________________ Measured values: Internal temperature, relative humidity. Dew-point temperature calculated from the internal temperature and relative humidity. Ranges: Temperature: (-20 to +60) °C Relative humidity: (0 to 100) %RH without lasting condensation. Dew-point temperature: -90 to +60 °C (*1) Accuracy Temperature: ±...
  • Page 49 1 year (according to the connected probe) U3631M ________________________________________ Measured values: Internal temperature, relative humidity. 1x External temperature measured by an external COMET Pt1000/E probe. Dew-point temperature calculated from the internal temperature and relative humidity. Difference of external temperature and dew point temperature. Ranges: Internal temperature: (-20 to +60) °C...
  • Page 50 External temperature input (without probe): ± 0.2 °C in the range -90 °C to +100 °C ± 0.2 % of the measured value in the range +100 ° C to +260 ° C The precision of the device with the connected temperature probe is determined by the above- mentioned precision of input and accuracy of the probe used.
  • Page 51 Barometric pressure (absolute): 700 hPa to 1100 hPa Concentration of CO in the air: 0 to 5000 ppm Dew-point temperature: -90 to +60 °C (*1) Accuracy Temperature: ± 0.4 °C Relative humidity: - sensor accuracy ±1.8 %RH (at 23 ºC in the range of 0 to 90 %RH) - hysteresis <...
  • Page 52 U0843M ________________________________________ Measured values: 2 x temperature by an external COMET Pt1000/0 probe 2 x binary input intended for voltage to be applied to it or a voltage-free contact (an open-collector transistor) to be connected to it. This device is not suitable for catching the „voltage applied/not applied”...
  • Page 53 Response time: Is determined by the response time of the used probe. Resolution: 0.1 °C converter range: 16 bits Recommended calibration interval: 2 years U5841M ________________________________________ Measured values: 3 x voltage (0 – 10) V 1 x binary input. This input can be configured to accept voltage signals or a voltage-free contact (as e.g.
  • Page 54 U6841M ________________________________________ Measured values: 3x current input, 1 x binary input. This input can be configured to accept voltage signals or a voltage-free contact (as e.g. an open-collector transistor). Unlike the U0843M model, this input can capture connected/disconnected voltage status. Range and input levels: Current input: Range: (0 to 20) mA DC...
  • Page 55 U7844M ________________________________________ Measured values: 2x user configurable binary input for applying voltage or connecting a voltage-free contact (as e.g. an open- collector transistor). Unlike the U0843M model, this input is able to catch also the „voltage applied/not applied“ states. 2 x counting input. This input, like the binary one, can be configured to accept voltage signals or a voltage-free contact e.g.

  • Page 56: Operating And Storage Conditions

    U8410M ________________________________________ Measured values: Concentration of CO in the air. Ranges: Concentration of CO2 in the air: 0 to 5000 ppm (the device it is possible to deliver with a range of 0 to 10000 ppm) Accuracy: concentration in the air: 50 + 0.03 ×...

  • Page 57: Mechanical Properties

    Mass: Ca 250 g including batteries Case material: Polycarbonate LEXAN EXL1434T resin Ingress protection: Protection class Device case with temperature and type electronics rel. humidity sensor U0110M U0121M IP67 U0141M U3121M U3120M IP67 IP30 U3631M U4440M IP20 IP20 U0843M U5841M...

  • Page 58: Declaration Of Conformity

    Declaration of conformity This datalogger is in compliance with the requirements of Directive 2014/35/EU. The original Declaration of Conformity can be found on the manufacturer's website www.cometsystem.com. IE-LGR-UxxxxM-18...

  • Page 59: Dimensions

    Dimensions U0110M, U8410M U0121M IE-LGR-UxxxxM-18...
  • Page 60 U0141M U3120M, U4440M IE-LGR-UxxxxM-18...
  • Page 61 U3121M U3631M IE-LGR-UxxxxM-18...
  • Page 62 U0843M, U5841M, U6841M, U7841M IE-LGR-UxxxxM-18...

  • Page 63: Annexes

    Annexes Annex 1: Selected error messages of the device Error Description and debugging A/D converter is at low limit, 0x0000. Error 1 Contact support. Error 2 Temperature probe is not connected or cable is damaged. Internal converter communication error. Error 3 Contact support.

  • Page 64: Annex 2: Connection Of The Pt1000/E Serie Probe Connector

    Error Description and debugging The source value of the calculated quantities is not available. Check in the SW whether measurement values are available Error 20 (temperature and relative humidity) for this calculated quantity in question (e.g. the dew-point temperature). Calculation failure, incorrect device calibration. Error 21 Have the device repaired.

  • Page 65: Annex 3: Accuracy Of The Dew-Point Temperature Measurement

    Annex 3: Accuracy of the dew-point temperature measurement Annex 4: Connecting block Some inputs are equipped with a split self- locking WAGO connector block. Connect wires block with either the supplied SP013 a screwdriver corresponding the size: insert a screwdriver into the connecting block’s angular opening situated...

  • Page 66: Annex 5: Calculated Channels

    (e.g. temperature, humidity, ..., according to the device type). Overview of available the Calculated channels by the device type (named as “Calculated”): Models Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 U0110M U0121M T1-T2 Calculated U0141M Calculated Calculated U0843M...

  • Page 67: Annex 6: Sms Message Format

    Annex 6: SMS message format SMS message format for SYSTEM ALARM: The message header includes: SYSTEM ALARM<enter> „Description of the device DescDev“<enter>“ Depending on the type of alarm, the corresponding text: Data memory limit overflow, Battery warning, Battery empty, Battery Ok, External power lost, External power Ok;...
  • Page 68 DataKeepAliveSMS format (suitable for automated data processing): All data coded into ASCII, it means 1 Byte will be sent as 2 ASCII characters. (hex. value 0x9E will be sent as two ASCII characters ‘9’ ’E’) Initial text "Datalogger" 10 ASCII chars Space 1 ASCII char Serial number...
  • Page 69 HumanKeepAliveSms format: The Text of the message is gradually consisting of the items in the order below. The length of this report is limited to max 160 characters. If the message was longer, then it sends only the first 160 characters. The format of the message: - description of the device from the configuration: max.

  • Page 70: Annex 7: Firmware Updates

    Annex 7: Firmware updates FW version 0.0.130 changes - added computed channels support FW version 0.0.129 changes: - added new JSON data version format Version6 - added new parameter: TimeNow Device time at the moment of sending JSON data as count of seconds since 1.1.2000. FW version 0.0.118 changes: - added new JSON data version format Version5 - added new parameter: BatteryPercentage.
  • Page 71 unavailable, then the data cannot be send immediately. If some error during data sending occurs, logger tries to resend it twice again immediately. If it still fails, JSON message stays stored into internal buffer (if free space is available yet) and is going to be send at next sending time again. It means, unsent data packet is not lost and will be delivered later together with newer one.

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