Comet U0110 User Manual
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Comet U0110 User Manual

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User's Guide
U0110
U0111
U0121
U0122
U0141
U0141T
U0246
U0541
U2422
U3120
U3121
U3430
U3631
U4130
U4440
U5841
U6841
U7844
U8410
USB Datalogger

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Summary of Contents for Comet U0110

  • Page 1 User‘s Guide U0110 U0111 U0121 U0122 U0141 U0141T U0246 U0541 U2422 U3120 U3121 U3430 U3631 U4130 U4440 U5841 U6841 U7844 U8410 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 COMET VISION PROGRAM ..............29 SETTING UP THE DEVICE ..............30 How to set up the device by means of a program ......30 The device setup from a program (Configuration) ....... 30 APPLICATION NOTES ................

  • Page 4: Introduction

    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. The user cannot modify them.
  • Page 5 General view of a Uxxxx series datalogger (U0141 model): IE-LGR-Uxxxx-16...

  • 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 with USB-C connector. • 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. In this case the ingress protection will be reduced to IP 20.

  • 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 pre-set memory occupancy limit has been exceeded.
  • Page 11 Record status - offers information on whether the recording is ON and whether it is just running. 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.
  • 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 Measured value (upper and lower row) - the currently measured value(s) (or the Min/Max values) are displayed if the corresponding symbols in the upper display section are illuminated. The unit name and the measured value symbol (1, 2, 3, 4, INT, EXT) are pre-set by the producer, the user cannot change them.

  • 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 models produced differ from one another by types and ranges of values to be measured. The datalogger’s input channels are invariably assigned to these values. The user cannot change the measured quantities and their ranges. U0110 One-channel thermometer This model is equipped with only one internal temperature sensor, no additional probes and sensors can be connected.
  • Page 16 U0111, U0121, U0141, U0141T One-channel, two-channel U0111, U0121, U0141 and four-channel thermometer for external probes These devices measure one, two or up to four temperatures from external probes of the Pt1000 series. The response to a temperature change depends on the connected probe design.
  • Page 17 U0246 Datalogger with 3 inputs for thermocouples and 1 input for external probe Pt1000 This model has three ±70 mV DC voltage inputs with support for temperature measurement using basic types thermocouples, external probe of the Pt1000/0 series can be connected to the fourth input.
  • Page 18 Connection: The procedure for connecting the wires to the terminals can be found in Annex IE-LGR-Uxxxx-16...
  • Page 19 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. Input signals are connected to a pluggable terminal block.
  • Page 20 By default, this is 2 minutes with the option of extending up to 10 minutes (option available in the COMET Vision software). U3120 Compact thermometer - hygrometer This model is designed to measure temperature, relative humidity and dew-point temperature by internal sensor, no additional probes or sensors can be connected.
  • Page 21 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 change 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 22 10 minutes (option available in the COMET Vision SW). We recommend calibrating the relative humidity and temperature of this device in the laboratory with a sufficient air flow (at least 1 m / s), the reading can be performed only after thorough settling, which can take up to 4 hours.
  • Page 23 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, compared to model with external probes.
  • Page 24 By default, this is 2 minutes with the option of extending up to 10 minutes (option available in the COMET Vision software). We recommend calibrating the relative humidity and temperature of this device in the laboratory with...
  • Page 25 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 isolated from one another.
  • Page 26 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 isolated from one another.
  • Page 27 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 dry contact.
  • Page 28 By default, this is 2 minutes with the option of extending up to 10 minutes (option available in the COMET Vision software). The device has not a protection against the ingress of water or dust.

  • Page 29: 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 30: 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 31 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 32 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”. Record _________________________________________ The choices that are available in this panel serve to control the device‘s recording functions.
  • Page 33 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 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...
  • Page 34 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). This delay time serves to eliminate contingent momentary overshoots of the limit value. The hysteresis, too, has a similar significance (Alarm hysteresis).
  • Page 35 An alarm can be signalized by a short flashing of the LED diode on the device panel (Optical signalling - LED). In the case that only one alarm originating from a measurement value is active, a yellow LED is flashing. In the case that more alarms occur simultaneously, or a system alarm or an alarm originating from an exceeded memory occupancy limit occur, a red LED diode is flashing.
  • Page 36 - time-limited (temporary) - if the alarm after the set time interval is still current, the optical and/or acoustic signalling is activated again. The time interval can be set in the device configuration under the item "Reactivate muted alarm signalling". By local keypad on the device only deactivate the optical and/or acoustic signalling;...
  • Page 37 Security________________________________________ When this service is activated in the device configuration, the user is prompted to set the password for the highest user - Administrator. Subsequently, the device allows users to activate User1, User2 and PowerUser and set their own login passwords. The rights of each user are listed in the following table: User Rights...

  • Page 38: 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 39 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 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 At this time, the device may still indicate a low battery. To complete the battery replacement, it is necessary to connect the device to a PC and update the device using the COMET Vision software. In the following steps, the record will be deleted inside the device memory, that record will be automatically saved to the diagnostic file.
  • Page 43 "Yes": After downloading, select "Battery exchange" item: If you order a new battery from the producer 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 44: 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 (U2422, U3430, U4440, U8410) are powered by an internal rechargeable Li-ion accupack. Its exchange is possible only by the producer or authorized service! Battery _________________________________________...

  • Page 45: Usb Communication Interface

    Charging time: Charging time depends on the current battery discharge level. Since the parasitic heat is generated when the internal battery is charging, the charging speed for devices with internal temperature and/or humidity measuring is deliberately slowed down to to prevent excessive influence of measured values.

  • Page 46: Parameters Of Datalogger Inputs

    Recommended calibration interval: 2 years U0111 _________________________________________ Measured values: 1x temperature sensed by an external COMET Pt1000/E series probe Temperature range: (-90 to +260) °C, Pt1000/3850 ppm sensor Measuring current: approx. 0.5 mA with pulses of approx. 60 ms length Input accuracy (without probes): ±0.2 °C in a range of (-90 to +100) °C...
  • Page 47 Recommended calibration interval: 2 years U0121, U0141, U0141T____________________________ Measured values: 2 x or 4 x temperature sensed by an external COMET Pt1000 series probe Temperature range: (-200 to +260) °C, Pt1000/3850 ppm sensor Measuring current: approx. 0.5 mA with pulses of approx.
  • Page 48 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. current: approx. 0.5 mA with approx. 60 ms...
  • Page 49 _________________________________________ Measured values: 3 x input for temperature measurement using thermocouples 1 x temperature from an external COMET Pt1000/0 probe 1 x internal temperature Range and input levels: Inputs 1 to 3 can be switched by the user to measure temperature using thermocouples or to measure voltage (-70 to +70) mV.
  • Page 50 Cold junction: compensated in the temperature range of (30 to 70) °C • Type „N“ thermocouple (NiCrSi-NiSiMg) Range: (-200 to 1300) °C Accuracy (without probes): ± (|0.3 % of the measurement value| + 1.5 °C) Display resolution: 0.1 °C Cold junction: compensated in the temperature range of (30 to 70) °C •...
  • Page 51 U0541 _________________________________________ Measured values: 2 x temperature by an external COMET Pt1000/0 probe 2 x voltage input (0 – 10) V DC. Range: (-200 to +260) °C, Pt1000/3850 ppm, Temperature: measuring current: approx. 0.5 mA in approx. 60 ms long pulses Voltage: (0-10) V DC, input resistance: approx.
  • Page 52 Accuracy: Barometric pressure: ± 1.3 hPa at 23 °C concentration in the air: Probe CO2R1-x: accuracy: ±(0.01+0.05xMV) [% CO at 23 °C and 1013 hPa] temperature dependency in range (-20...45) °C: typ. ± (0.0001 + 0.001xMV) [% CO /°C] MV…measured value (*1) Response time (air flow 1 m/s approx.) Barometric pressure: t...
  • Page 53 (*2) Response time (air flow 1 m/s approx.) Temperature: t < 2 min, t < 8 min (temperature step 20 °C) Relative humidity: t < 45 s, t < 4 min, t <4 h. (Measured at constant temperature for 30% humidity step) Display resolution: Temperature incl.
  • Page 54 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 permanent (*2) condensation Concentration of CO...
  • Page 55 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 56 (*2) Response time (air flow 1 m/s approx.) Internal temperature: t < 2 min, t < 8 min (temperature step 20 °C) Relative humidity: t < 45 s, t < 4 min, t <4 h. (Measured at constant temperature for 30% humidity step) External temperature...
  • Page 57 (*2) Response time (air flow 1 m/s approx.) Temperature: t < 2 min, t < 8 min (temperature step 20 °C) Relative humidity: t < 45 s, t < 4 min, t <4 h. (Measured at constant temperature for 30% humidity step) Barometric pressure: t <44s...
  • Page 58 Dew-point temperature: ±1.5 °C at an ambient temperature of T< 25 °C and RH >30 %. For details see diagrams in Annex (*1) During battery charging temporary measurement inaccuracy can occur. (*2) Response time (air flow 1 m/s approx.) Temperature: t <...
  • Page 59 Binary input configured for a dry contact or an open- collector transistor: Contact resistance for the „switched-on“ state: < 10 kΩ Contact resistance for the "switched-off" state: > 2 MΩ Excitation voltage: approx. 3 V Minimum state duration necessary for latching the state: 1s Connection: Pluggable terminal block, maximum wire cross section...
  • Page 60 Contact resistance for the "switched-off" state: > 2 MΩ Excitation voltage: approx. 3 V Minimum state duration necessary for latching the state: 1s Connection: Pluggable terminal block, maximum wire cross section 1.5 mm . The maximum cable length is 30 m. It is recommended to use shielded cables.
  • Page 61 Maximum pulse frequency when configuring for: - voltage input: max. 5 kHz - dry contact or open collector transistor: max. 200 Hz Further features: relative counter (count of pulses sensed during the recording interval) Connection: Pluggable terminal block, maximum wire cross section 1.5 mm .

  • Page 62: Operating And Storage Conditions

    Operating and storage conditions Operating temperature: (-20 to +60) °C models with CO sensor (-30 to +70) °C other models Range of the display visibility: (-10 to +60) °C Operating humidity: (0 to 95) %RH without permanent condensation for models with CO sensor (0 to 100) %RH without long-lasting condensation for other models...
  • Page 63 Ingress protection: Protection class Device case with temperature and type electronics rel. humidity probe sensor U0110 U0111 U0121 IP67 U0122 U0141 U3121 U2422 IP54 IP65 U3120 IP67 IP30 U3631 U3430 IP20 IP20 U4440 U4130 IP54 IP30 U0141T U0246 U0541 U5841...

  • Page 64: Dimensions

    Dimensions U0110 U0111 U0122 IE-LGR-Uxxxx-16...
  • Page 65 U0121 U0141 IE-LGR-Uxxxx-16...
  • Page 66 U0246 U0141T U0541 U5841 U6841 U7844 U2422 IE-LGR-Uxxxx-16...
  • Page 67 U3121 U3120 U4130 IE-LGR-Uxxxx-16...
  • Page 68 U3430 U4440 U3631 IE-LGR-Uxxxx-16...
  • Page 69 U8410 IE-LGR-Uxxxx-16...

  • Page 70: 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 71: 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 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 72: Annex 3: Accuracy Of The Dew-Point Temperature Measurement

    Annex 3: Accuracy of the dew-point temperature measurement Annex 4: Connecting the wires to the terminals Some inputs are equipped with a split self- locking WAGO connector block. Connect the wires to the block with either the supplied SP013 a screwdriver corresponding the size: insert...

  • Page 73: 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 U0110 U0111 U0121 T1-T2 Calculated...

  • Page 74: Annex 6: Typical Tolerance Of The % Rh Measurement

    Annex 6: Typical tolerance of the % RH measurement < 3 %RH < 7 %RH < 5 %RH < 1.8 %RH T [°C] IE-LGR-Uxxxx-16...

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