Comet U0110 User Manual
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Comet U0110 User Manual

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User's Guide
U0110
U0111
U0121
U0122
U0141
U3120
U3121
U3631
U4130
U3430
U4440
U0541
U5841
U6841
U7844
USB Datalogger

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Summary of Contents for Comet U0110

  • Page 1 User‘s Guide U0110 U0111 U0121 U0122 U0141 U3120 U3121 U3631 U4130 U3430 U4440 U0541 U5841 U6841 U7844 USB Datalogger...
  • 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 ............10 Menu Options ................14 MODELS PRODUCED ................15 U0110 One-channel thermometer ..........15 U0111, U0121, U0141 One-, two- or four- channel thermometer for external probes ............15 U0122 Two-channel thermometer with external probe ....16 U3120 Compact thermometer - hygrometer ........
  • Page 4 Annex 4: Accuracy of the dew-point temperature measurement 54 Annex 5: Connecting block ............54 Introduction This datalogger is designed for autonomous measurements and recording of physical and electrical data, with the data recording interval from 1 s to 24 h. The inputs and ranges of quantities to be measured are determined by the model type the user has bought.
  • Page 5 General view of a Uxxxx series datalogger (U0141 model): Dimensional drawing: U0110 U3120, U4130 U3430, U4440 U0111, U0121, U0122 U3631 U0541, U5841 U0141, U3121 U6841, U7844 IE-LGR-Uxxxx-01...

  • 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! • Operating and storage conditions. Observe the recommended operating and storage condition as quoted in the Technical parameters. Models with a CO sensor containing an internal lithium-ion accupack should not be exposed to temperatures above 60 °C Do not expose the device to direct radiation of heat sources and sun.

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

    Guide to installation and usage of the device Installing the datalogger, placing the probes • Choose a suitable location for installing the device - bear in mind that the environmental conditions should be concordant with the Operating conditions. Do not situate the device near sources of electromagnetic interference.

  • Page 8: Device Set-Up

    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 9: Running The Device

    Running the device • After the set-up - Disconnect the device from the computer and close the USB connector with a closing cap. Check that all connectors are tightened properly. The device may be operated with a permanently connected USB cable.

  • Page 10: 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 11 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 12 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 13 and behaviour of individual „screens“. Controlling them can 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 14: 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 15: Models Produced

    The datalogger’s input channels are invariably assigned to these values. The user cannot change the type and range of the values to be measured. U0110 One-channel thermometer This model is equipped with only one internal temperature sensor, no additional probes and sensors can be connected.

  • Page 16: U0122 Two-Channel Thermometer With External Probe

    U0122 Two-channel thermometer with external probe This model allows to measure the temperature of the internal sensor and one external probe series Pt1000/E. The response to a temperature jump depends on the connected probe design but is usually much faster than the response of the internal sensor.

  • Page 17: U3121 Thermometer - Hygrometer For External Probe

    U3121 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 18: U3631 Compact Thermometer - Hygrometer With Optional External Temperature Probe

    U3631 Compact thermometer – hygrometer with optional external temperature probe This model is designed to measure temperature, relative humidity and dew-point temperature by internal sensor, moreover one additional external temperature probe Pt1000/E can be connected. Internal sensors are located under the grid on the front of the unit and are protected with Teflon foil.

  • Page 19: U4130 Compact Thermometer - Hygrometer - Pressure Gauge

    U4130 Compact thermometer - hygrometer - pressure gauge This model is designed to measure temperature, relative humidity, dew-point temperature barometric pressure by internal sensors. Barometric pressure can be measured as absolute or recalculated to sea level. additional probes or sensors can be connected. It is characterized by a simple and compact design and a relatively long response in the measured quantities, compare to model with external probes.

  • Page 20: U4440 Compact Thermometer - Hygrometer - Pressure Gauge - Co 2 Concentration Meter

    By default, this is 2 minutes with the option of extending up to 10 minutes (option available in the COMET Vision software). We recommend that calibration of this device in the laboratory be carried out with sufficient air flow (at least 1 m/s), but the reading should be carried out only after a thorough settling, which may take up to 4 hours.

  • Page 21: U0541 Two-Channel Thermometer For External Probes With 2 Inputs 0 - 10 V

    U0541 Two-channel thermometer for external probes with 2 inputs 0 - 10 V This model can measure up to two temperature values, which are sensed by outdoor Pt1000/0 series probes. In addition, it has two voltage inputs for monitoring voltage signal changes.

  • Page 22: U5841 Datalogger With 3 Inputs 0 - 10 V And 1 Binary Input

    U5841 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 23: U6841 Datalogger With 3 Inputs 0 - 20 Ma And 1 Binary Input

    U6841 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 24: U7844 Two-Channel Binary-Input Counter

    U7844 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.

  • Page 25: Comet Vision Program

    • 1 GB memory Program description ______________________________ The COMET Vision program is used to set up Comet devices, to obtain the recorded data and the currently measured values. The program is available free of charge (www.cometsystem.com), any number of devices can be connected simultaneously (e. g. data from several devices can be downloaded concurrently;...

  • Page 26: 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 27 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 28 10 minutes to save more battery life. For details concerning power consumption, see Technical parameters. Record _________________________________________ The choices that are available in this panel serve to control the device‘s recording functions. The recording function may be switched on and off when needed (Recording with interval).
  • Page 29 values by means of the so-called User calibration are available in channels with voltage and current inputs only. In these inputs no physical quantity unit is displayed on the device’s LCD display. If a value cannot be displayed because of a great number of digits, it is substituted by an error message.
  • Page 30 Alarm events ____________________________________ The device makes it possible to evaluate alarm situations, which can either originate from the measurement data, or they can notify of a certain device condition (exceeding the memory occupancy limit, system alarms). The individual alarm situations can be assigned the way of their signalling to the user.
  • Page 31 Alarm events – Mute of signalling________________ In this panel you can enable the alarm to be deleted and deactivate the alarm signalling both from the SW and from the device keypad. Furthermore, optical (LED) or acoustical alarm signalling can be enabled/disabled here.

  • Page 32: Application Notes

    Application notes Operation with permanently connected USB cable ______ Datalogger is primarily intended to be operated as an autonomous unit powered by its built-in batteries. Nevertheless, you can also operate it with permanently connected USB cable. In this case the device is not protected against dust and water ingress, and, consequently, it cannot be operated in locations in which such ingress protection is required.
  • Page 33 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 34: 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 35 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 36 If you order a new battery from the manufacturer of the device (Comet System, s.r.o., order code A4203), you will also receive it with the clip. Check the seal integrity in the encoder housing and reinstall the cover.

  • Page 37: Technical Parameters

    Technical parameters Power supply The device is powered by an internal lithium battery, accessible after unscrewing the cover (see Battery replacement procedure). Models with concentration measurement (U3430, U4440) are powered by an internal rechargeable Li-ion accupack. Its exchange is possible only by the manufacturer or authorized service! Battery _________________________________________...

  • Page 38: Usb Communication Interface

    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 39: Parameters Of Datalogger Inputs

    0.1 °C Recommended calibration interval: 2 years U0122__________________________________________ Measured values: Internal temperature 1x External temperature sensed by an external Comet Pt1000/E series probe Range: Internal temperature: (-30 to +70) °C External temperature input: (-90 to +260) °C, Pt1000/3850 ppm sensor Meas.
  • Page 40 2 years U0111, U0121, U0141_____________________________ Measured values: 1, 2 or 4 x temperature sensed by an external Comet Pt1000/E series probe Temperature range: (-90 to +260) °C, Pt1000/3850 ppm sensor Measuring current: ca 0.5 mA with pulses of ca 60 ms...
  • Page 41 Response time: Is determined by the response time of the used probe. Display resolution: 0.1 °C Recommended calibration interval: 2 years U3120 ________________________________________ Measured values: Internal temperature, relative humidity. Dew-point temperature calculated from the internal temperature and relative humidity. Ranges: Temperature: (-30 to +70) °C Relative humidity: (0 to 100) %RH without lasting (*2)
  • Page 42 1 year (according to the connected probe) U3631 ________________________________________ 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: (-30 to +70) °C...
  • Page 43 Dew-point temperature: ±1.5 °C at an ambient temperature of T< 25 °C and RH >30 %. For details see diagrams in Annex 4. 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 °...
  • Page 44 U3430 ________________________________________ Measured values: Internal temperature, relative humidity and the concentration of CO in the air. 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 (*2) condensation Concentration of CO...
  • Page 45 U4130 ________________________________________ Measured values: Internal temperature, relative humidity and barometric pressure. Dew-point temperature calculated from the internal temperature and relative humidity. Ranges: Temperature: (-30 to +70) °C Relative humidity: (0 to 100) %RH without lasting (*2) condensation Barometric pressure (absolute): 600 hPa to 1100 hPa Dew-point temperature: -90 to +70 °C Accuracy: Temperature: ±...
  • Page 46 U4440 ________________________________________ Measured values: Internal temperature, relative humidity, barometric pressure and the concentration of CO in the air. 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 (*2) condensation Barometric pressure (absolute): 600 hPa to 1100 hPa...
  • Page 47 U0541 ________________________________________ Measured values: 2 x temperature by an external Comet Pt1000/0 probe 2 x voltage input 0 - 10 V DC. Range: Temperature: (-90 to +260) °C, Pt1000/3850 ppm, measuring current: ca 0.5 mA in ca 60 ms long pulses Voltage: (0-10) V DC, input resistance: approx.
  • Page 48 U5841 ________________________________________ Measured values: 3 x voltage input (0 - 10) V 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). This input can capture connected/disconnected voltage status. Range and input levels: Voltage inputs: Range: (0 to 10) V DC...
  • Page 49 U6841 ________________________________________ Measured values: 3x current input (0 – 20) mA, 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). This input can capture connected/disconnected voltage status. Range and input levels: Current inputs: Range: (0 to 20) mA DC...
  • Page 50 U7844 ________________________________________ Measured values: 2x user configurable binary input for applying voltage or connecting a voltage-free contact (as e.g. an open- collector transistor). 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 (as e.g.

  • Page 51: Operating And Storage Conditions

    Depends on type, up to 260 g including batteries Case material: Polycarbonate LEXAN EXL1434T resin Ingress protection: U0110, U0111, U0121, U0122, U0141, U3120, U3121, U3631, U4130: IP67 U3430, U4440, U0541, U5841, U6841, U7844: IP20 To reach this ingress protection, the device cover...

  • Page 52: Annexes

    Annexes Annex 1: Selected error messages of the device Failure Description and debugging Value exceeding the hardware range (value too low). - The Pt1000 probe is short-circuited. Error 1 Check the probes connected and the signals applied. Value exceeding the hardware range (value too high). - The Pt1000 probe is broken.

  • Page 53: Annex 2: Connection Of The Pt1000/E Series Probe Connector

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

  • Page 54: Annex 3: Connection Of The Digi/E Probe Connector (Female)

    Annex 3: Connection of the Digi/E probe connector (female) Annex 4: Accuracy of the dew-point temperature measurement Annex 5: Connecting block Some inputs are equipped with a split self- locking WAGO connector block. Connect the wires to the block with either the supplied SP013 or a screwdriver corresponding to the size: insert a screwdriver into the connecting block’s angular opening situated above the...

This manual is also suitable for:

U0121U0111U3120U0122U3121U3631 ... Show all

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