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Instruction Manual
T3111
T3111L
T3111P
T3111Ex
Programmable transmitter of temperature, relative humidity
and other calculated humidity values with external probe
and 4 - 20 mA outputs

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Summary of Contents for Comet System T3111

  • Page 1 Instruction Manual T3111 T3111L T3111P T3111Ex Programmable transmitter of temperature, relative humidity and other calculated humidity values with external probe and 4 - 20 mA outputs...
  • Page 2 It is prohibited to copy and make any changes in this manual, without explicit agreement of company COMET System, Ltd. All rights reserved. COMET System, Ltd. 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

    TECHNICAL SUPPORT AND SERVICE ..........11 TECHNICAL DATA .................. 12 MEASURED VALUES ................12 CALCULATED HUMIDITY VALUES ............13 GENERAL ....................14 OPERATING CONDITIONS ..............16 END OF OPERATION ................16 DIMENSIONS..................17 TYPICAL APPLICATION WIRING ............19 APPENDIX A ................... 21 IE-SNC-T3111-13...
  • Page 4: General Description

    General description The transmitters T3111 are designed for measurement of ambient temperature and relative humidity of air without aggressive substances. Measured values are converted to other humidity interpretation: dew point temperature, absolute humidity, specific humidity, mixing ratio and specific enthalpy. The transmitters are equipped with an external humidity and temperature probe on a cable.
  • Page 5: T3111Ex Transmitter

    European Standards EN 60079-0:2018 and EN 60079-11:2012. Transmitter is suitable for use in potentially explosive atmospheres (Apparatus Groups llC) in applications requiring devices category 3G. Type Examination Certificate number FTZÚ 13 ATEX 0189X is available at www.cometsystem.com. IE-SNC-T3111-13...
  • Page 6: Factory Settings

    I1: relative humidity range 4-20 mA corresponds 0 to 100 %RH value at output I2: temperature range 4-20 mA corresponds -30 to +105 ºC display: switched ON °C temperature unit: value displayed at line 2: relative humidity IE-SNC-T3111-13...
  • Page 7: Device Installation

    “Typical application wiring”. For device connection it is recommended to use a shielded cable with a maximum length of 1200m. External diameter of the cable for T3111, T3111P and T3111Ex connection is 4 to 8 mm. For T3311L connection use cable with respect to female connector parameters (do not connect shielding at connector side).
  • Page 8: Info Mode

    During info mode no measurement and no output current generation proceed. The transmitter stays at info mode 15 s, and then automatically goes back to measuring cycle.  The verifying of settings of the T3111Ex transmitter is permitted only in non-hazardous area. IE-SNC-T3111-13...
  • Page 9: Modification Of Device Adjustment

    Warning  Modification of adjustment of the T3111Ex transmitter using a cable SP003 is permitted only in non-hazardous area. IE-SNC-T3111-13...
  • Page 10: Error States Of The Device

    Error 3 - there is a reading „Err3“ on LCD display upper line. Error of internal A/D converter appeared (converter does not respond, probably damage of A/D converter). No measurement and calculations of values are proceeded. It is a serious error, contact distributor of the instrument. IE-SNC-T3111-13...
  • Page 11: Technical Support And Service

    Technical support and service Technical support and service is provided by distributor. For contact see warranty certificate. You can use discussion forum at web address www.forum.cometsystem.cz. IE-SNC-T3111-13...
  • Page 12: Technical Data

    Accuracy: 0 to +105 °C Measuring range: 0.1 °C Resolution: Response time: t90 < 6 min T3111 t90 < 6 min T3111L t90 < 6 min T3111Ex t90 < 16 min T3111P (temperature step 20 ºC) Relative humidity: ± 2.5 %RH from 5 to 95 %RH at 23 °C...
  • Page 13: Calculated Humidity Values

    Accuracy: RH > 30 %, for more details see graphs -60 to +80 ºC Measuring range: Absolute humidity: ±1.5 g/m at ambient temperature T < 25 °C, Accuracy: for more details see graph Measuring range: 0 to 400 g/m IE-SNC-T3111-13...
  • Page 14: General

    9 to 30 Vdc Current output in case of error: < 3.8 mA or > 22 mA Recommended calibration interval: 1 year relative humidity 1 year, temperature 2 years Protection: housing with electronics IP65, sensors are located in cover with IP40 protection IE-SNC-T3111-13...
  • Page 15 The equipment shall only be cleaned with a damp cloth. Electromagnetic compatibility: EN 61326-1 Weight: approximately T3111, T3111L, T3111Ex probe 1m 210 g T3111, T3111L, T3111Ex probe 2m 250 g T3111, T3111L, T3111Ex probe 4m 330 g...
  • Page 16: Operating Conditions

    Operating conditions Temperature operating range of the housing with electronics: -30 to +80 ºC T3111 -30 to +80 ºC T3111L -30 to +80 ºC T3111L Ambient temperature range of the housing with electronics: -30 to +60 ºC T3111Ex Temperature operating range of the probe: -30 to +105 ºC...
  • Page 17: Dimensions

    Dimensions T3111 T3111Ex T3111L IE-SNC-T3111-13...
  • Page 18 T3111P IE-SNC-T3111-13...
  • Page 19: Typical Application Wiring

    Typical application wiring T3111 T3111P Loop resistance value Rc = Rm + resistance of wires shall fulfill the condition Rc[Ω] < 40 x Uss[V] – 360. T3111Ex Loop resistance value Rc = Rm + Rs + resistance of wires shall fulfill the condition Rc[Ω] < 40 x Uss[V] – 360.
  • Page 20 T3111L Loop resistance value Rc = Rm + resistance of wires shall fulfill the condition Rc[Ω] < 40 x Uss[V] – 360. IE-SNC-T3111-13...
  • Page 21 For the accurate operation of sampling system is important to ensure perfect tightness of all connections and to use corrosion-resistant materials. Tube inclination is chosen so as to avoid the accumulation of fluid in the system. IE-SNC-T3111-13...
  • Page 22 Technical specification – flow chamber SH-PP Material of flow chamber: stainless steel (DIN 1.4301) Inlet and outlet connection: G1/8 Probe connection: G1/2 Sample flow rate: 0.1 to 3 l/min Operating pressure: up to 25 bar Weight: 580 g Note: Screw-coupling not included IE-SNC-T3111-13...

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T3111lT3111pT3111ex

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