Tekmar 1873-ESM Installation And Adjustment Instructions
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Tekmar 1873-ESM Installation And Adjustment Instructions

Ice and snow detector
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Ice and Snow Detector
1873-ESM and 1875-ESM
Installation and Adjustment Instructions
1873-ESM
1875-ESM

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  • Page 1 Ice and Snow Detector 1873-ESM and 1875-ESM Installation and Adjustment Instructions 1873-ESM 1875-ESM...

  • Page 2: Table Of Contents

    Content Scope of delivery .......... 3 Overview ............4 Terms and functions ........7 Installation and commissioning ....16 Connection diagrams ......17 Required settings ......... 24 Further basic settings ......25 User interface 1873 ........29 Menu: Single Unit ......... 31 Menu: System ........

  • Page 3: Scope Of Delivery

    Scope of delivery Ice and Snow Detector 1873-ESM or 1875-ESM Installation and Adjustment Instructions Ice and Snow Detector 1873-ESM and 1875-ESM Safety instructions tekmar pencil (only 1873-ESM) (Rubber end can be used to operate the touch display)

  • Page 4: Overview

    Overview Configurations The basic 1873 device can either be used as a Tekmar ice detection systems use their combi sen- single unit or as a basis for setting up an ice sors to measure temperature and moisture in detection system with one or several channel(s)
  • Page 5 Furthermore, the function of the Ice and Snow Detector 1873-ESM heating relay and a downstream contactor can be The Ice and Snow Detector 1873 is a single- monitored.
  • Page 6 Overview snow. This measuring principle was developed by Documentation tekmar and has already proven itself over many Other relevant documentation: years. Only one sensor is required to measure  Safety instructions moisture and temperature, making installation very  I-187x-ESM-Sensor-EN, simple and cost-effective.

  • Page 7: Terms And Functions

    TAV Server on the internet (Internet Gateway) or to the building manage- Functions of an ice detection channel: ...
  • Page 8 Terms and functions  deactivation of the heating if the temperature Operating mode falls below the switch-off temperature (lower The basic operation of an ice detection channel can temperature limit) be selected via the operating mode.  monitoring of the heating circuit output for inter- Temp.
  • Page 9 Terms and functions Emergency mode The basic setting for the moisture threshold should In addition to the automatic activation of be 1 to 2 points above the dry value indicated on the emergency mode, it can also be the sensor. If no information is available on the activated manually in the event of malfunctions sensor, a test measurement can be triggered via around the system.
  • Page 10 Terms and functions circuit switches on for the minimum heating time would be rather increased by switching on the heat- and the moisture measurement is suspended. Only ing system.) after the minimum heating time has elapsed is the Minimum heating time moisture determined again at regular intervals.
  • Page 11 Terms and functions Base temperature mode the base temperature mode can lead to very high energy consumption. With the base temperature mode for an ice detec- tion channel, the ground of an outdoor system can Emergency mode be kept at an adjustable base temperature at low In the emergency mode the heating circuit output is outside temperatures (2-point control).
  • Page 12 Terms and functions Zone and weekly rhythm. A maximum of 16 switching points can be defined for each week program. One or more ice detection channels can be assigned to a zone, which then have extended Available control modes:  Channel: All ice detection channels in the zone control options.
  • Page 13 Terms and functions the zone reports a temperature below the activation The PWM performance at the start temperature is defined via the "start value”. The performance at temperature together with a moisture value above its moisture threshold. the end temperature is always 100%. The heating capacity is adjusted linearly between the start and Pre-heating mode end temperature.
  • Page 14 Modbus weather forecast that the system receives from Gateway. tekmar's TAV Server via the Internet Gateway. Both Functions of alarm management: sources are evaluated independently of each other  monitoring of all ice and snow detectors and...
  • Page 15 Terms and functions reported (alarm inverted and signal loop via the normally open/change-over contact). Due to its insulation, the alarm relay can be used for both mains voltage and SELV circuits. Heating circuit monitoring The heating circuit connected to the heating circuit relay is monitored for interruptions and the heating relay itself for malfunctions.

  • Page 16: Installation And Commissioning

    Installation and commissioning Installation procedure Only qualified personnel (electrician or Proper use similar qualification) may install the device. The device must only be used for the control relevant engineering practices electric water-operated heating enclosed safety instructions must be observed! systems. It has to be installed in an electric Disconnect the control cabinet before installation.

  • Page 17: Connection Diagrams

    Installation and commissioning 1873, 1875 Connection diagrams 1875-ESM 1873-ESM...
  • Page 18 Recommended components: tested a solution for a correct function, also in connection with a recommended relay interface...
  • Page 19 Installation and commissioning 1873, 1875...
  • Page 20 Installation and commissioning 1873, 1875 Connection via TGN When several devices in a system are connected, they all need to be connected to each other via the TGN bus so that they can exchange data with each other.
  • Page 21 Installation and configuration of a Multi Channel system The 1873-ESM is delivered with a fixed channel 1 and the 1875-ESM with a pre-set channel 2. In case of a two-channel system, no further adjustment of the channels is required. Only the channels 2 to 8 can be assigned to the 1875-ESM, since channel 1 is always reserved for the 1873-ESM.
  • Page 22 Installation and commissioning 1873, 1875...
  • Page 23 Installation and commissioning 1873, 1875 This is an example of a completed configuration:...

  • Page 24: Required Settings

    Unit, System or Multi Channel) in which the Server communication active (System, Multi Channel) 1873-ESM is to be operated, see page 7. The If tekmar's TAV Server is to be used, selection changes the menu, since only the communication must be activated here.

  • Page 25: Further Basic Settings

    Installation and commissioning 1873, 1875 Further basic settings Minimum heating time Single Unit: Operation Moisture threshold System: Operation → Multi Channel: Operation → ISD channels → Installer → Menu ISD channel <No.> It should be checked whether the factory-set Adjustment of the minimum heating time for the ice moisture threshold matches the sensor used and its detector or the selected ice detection channel, also environment.
  • Page 26 Operation displays Idle display: System 1873 Idle display: Single Unit 1873  line 1: date, time,  line 1: channel state state of heating output  line 2: temperature  line 2: channel state  line 3: moisture value  line 3: temperature, moisture value ...
  • Page 27 Displays during operation 1873, 1875 Idle display: Multi Channel 1873 + 1875  line 1: channel number, state of heating output  line 2: channel state  line 3: temperature, moisture value  line 4: remaining heating time, error code ...
  • Page 28 Displays during operation 1873, 1875 LED displays 1875 Status displays during operation: Feedback of the various operating states is pro- vided by two three-colour LEDs. The following Description tables show the meaning of the LED displays. Two  several seconds after power-up coloured dots indicate that the LED is flashing in ...

  • Page 29: User Interface 1873

    User interface 1873 Menu launch menu >> next menu level Touch display with softkey buttons << one menu level back The touch display of the 1873 may be operated by next (to select one of several parame- > using up to four softkeys at the bottom of the ters) screen, pressing them either with the finger or the back (to select one of several parame-...
  • Page 30 User interface 1873 Menu structure Numeric keypad The individual menu items are explained in detail in the chapters Settings and Operation. The menu items under Menu → Installer are reserved for the qualified installation technician. Some settings appear under several menu items because this will save time jumping back and forth in different menu levels during installation.

  • Page 31: Menu: Single Unit

    User interface 1873 Menu: Single Unit Level 1 Level 2 Level 3 Level 4 Page Operation Operating mode Upper temperature limit Moisture threshold Minimum heating time Start minimum heating time? Information Channel state Heating output Temperature moisture area Last moisture measurement Remaining heating time Operating time Energy consumption...
  • Page 32 User interface 1873 Installer Startup Application Sensor type Information Channel state Heating output Error code Temperature heating area Last moisture measurement Remaining heating time Remaining inhibition time moisture Operating time Operating time total Energy consumption Energy consumption total Device data Serial number Version Config.
  • Page 33 User interface 1873 Heating performance PWM interval time Emergency duty cycle Alarm delay Alarm relay inverted Emergency mode with error temperature Blocking protection active Monitoring heating output active Operating time: Reset coun- ters Service ISD channel Start minimum heating time? Stop heating? Start moisture measurement? Sensor temperature...

  • Page 34: Menu: System

    User interface 1873 Menu: System Level 1 Level 2 Level 3 Level 4 Opt.* Page Operation Operating mode Upper temperature limit Moisture threshold Minimum heating time Start minimum heating time? Week program Week progr. 1 Holiday program Start of holiday End of holiday Control mode holiday...
  • Page 35 User interface 1873 Energy consumption Server for details refer to Installation and Operation Instructions: Gateway Inter- Device data Serial number Version Set passwords Set level 1 Set password for level 1 Set level 2 Set password for level 2 Set level 3 Set password for level 3 Setup Date/...
  • Page 36 User interface 1873 Control mode ISD channel Channel state Heating output Error code Temperature heating area Last moisture measure- ment Remaining heating time Remaining inhibition time moisture Operating time Operating time total Energy consumption Energy consumption total Heat demand State Status OAT measurement series Status weather series...
  • Page 37 User interface 1873 Server for details refer to Installa- tion and Operation In- structions: Gateway Inter- Device data Serial number Version Config. modules System OT-Limit preHeating Check OT value continu- ously Alarm delay Alarm relay inverted ISD channel Operating mode Sensor type Upper temperature limit...
  • Page 38 User interface 1873 Emergency mode with error temperature Blocking protection active Monitoring heating output active Operating time: Reset counters Heat demand Pre-heating start tempera- ture Pre-heating start value Pre-heating end tempera- ture Ground characteristic Heat-up characteristic Server for details refer to Installa- tion and Operation In- structions: Gateway Inter- LAN setup...
  • Page 39 User interface 1873 Start moisture measurement Sensor temperature Last moisture measure- ment Remaining inhibition time moisture Restart Factory settings Only displayed if the following condition is met: 1: Gateway communication active (Server communication active = “Yes”)

  • Page 40: Menu: Multi Channel

    User interface 1873 Menu: Multi Channel Level 1 Level 2 Level 3 Level 4 Level 5 Opt.* Page Operation System Week programs Week progr. 1 Week progr. 2 Week progr. 3 Week progr. 4 Holiday program Start of holiday End of holiday Control mode holi- ISD channels ISD channel...
  • Page 41 User interface 1873 Zones Zone <No.> Control mode ISD channels ISD channel Channel state <No.> Heating output Temperature heat- ing area Last moisture measurement Remaining heating time Zone number Operating time Energy consump- tion Server for details refer to Installation and Operation Instructions: Gateway Internet Device data Serial number Version...
  • Page 42 User interface 1873 Time Type of summer- time Language Display Contrast Brightness menu Brightness idle Installer Startup Application Date/ Date/Time Time Type of summer- time ISD channels ISD channel <No.> Sensor type Server communi- cation active Information System Registered chan- nels Effective outside tempera-...
  • Page 43 User interface 1873 Temperature heating area Last moisture measure- ment Remaining heating time Remaining inhibition time moisture Zone number Operating time Operating time total Energy consumption Energy consumption total Heat demand State Status OAT meas- urement series Status weather series Outside temp.
  • Page 44 User interface 1873 Device data Serial number Version Config. modules System OT-Limit preHeat- Check OT value continuously Alarm delay Alarm relay inverted Delete registered channel Zones Zone <No.> Time control Channel coupling ISD channels ISD channel <No.> Operating mode Sensor type Upper temperature limit Lower temperature limit Moisture threshold...
  • Page 45 User interface 1873 Emergency duty cycle Emergency mode with error temperature Blocking protection ac- tive Monitoring heating out- put active Operating time: Reset counters Heat demand Pre-heating start temperature Pre-heating start value Pre-heating end temperature Ground character- istic Heat-up character- istic Server for details refer to Installation and Operation...
  • Page 46 User interface 1873 Stop heating? Start moisture meas- urement? Sensor temperature Last moisture measure- ment Remaining inhibition time moisture Restart Factory settings Setup exp. chan- nel (connect only one device!) Only displayed if the following condition is met: 1: Gateway communication active (Server communication active = “Yes”)
  • Page 47 Settings Operating mode Operation | Installer → Config. modules Single Unit: Operation | Installer → Config. modules → ISD channel System: Multi Channel: Operation → ISD channels → ISD channel <No.> Installer → Config. modules → ISD channels → ISD channel <No.> Adjustment of the operating mode for the ice detector or the selected ice detection channel.
  • Page 48 Settings Moisture threshold Operation | Installer → Config. modules Single Unit: Operation | Installer → Config. modules → ISD channel System: Multi Channel: Operation → ISD channels → ISD channel <No.> Installer → Config. modules → ISD channels → ISD channel <No.> Adjustment of the moisture threshold for the ice detector or the selected ice detection channel.
  • Page 49 Settings Start minimum heating time? Operation | Installer → Service → ISD channel Single Unit: Operation | Installer → Service → ISD channel System: Multi Channel: Operation → ISD channels → ISD channel <No.> Installer → Service → ISD channels → ISD channel <No.> One-time activation of the heating for the duration of the minimum heating time.
  • Page 50 Settings Holiday program System: Operation Multi Channel: Operation → System Adjustment of a holiday program effective for the entire system that overrides all week programs of the existing zones. For detailed adjustment instructions refer to page 72, for further information refer to Week programs, page Registered channels Multi Channel: Information →...

  • Page 51: Control Mode

    Settings Pre-heating demand Information → System | Installer → Information → System System: Multi Channel: Information → System | Installer → Information → System Display of the heating demand in % in the pre-heating mode. The effective outside temperature is used to assess whether pre-heating is necessary (e.

  • Page 52: Heating Output

    Settings Heating output Information | Installer → Information Single Unit: Information → ISD channel | Installer → Information → ISD channel System: Multi Channel: Information → ISD channels → ISD channel <No.> Installer → Information → ISD channels → ISD channel <No.> Display of the switching state of the relay output of the heating circuit.

  • Page 53: Remaining Heating Time

    Settings Possible values: undefined, 0.0 to 10.0. Remaining heating time Information | Installer → Information Single Unit: Information → ISD channel | Installer → Information → ISD channel System: Multi Channel: Information → ISD channels → ISD channel <No.> Installer → Information → ISD channels → ISD channel <No.> Display of the remaining heating time including the post heating time in minutes, i.

  • Page 54: Energy Consumption

    Settings Energy consumption Information | Installer → Information Single Unit: Information → ISD channel | Installer → Information → ISD channel System: Multi Channel: Information → ISD channels → ISD channel <No.> Installer → Information → ISD channels → ISD channel <No.> Display of the heating energy consumed since the last reset of the operating time counter.
  • Page 55 Settings For a detailed description refer to Password protection, page 73. Factory setting: 0000 for levels 1, 2 and 3 Date/Time Setup → Date/Time | Installer → Startup → Date/Time System: Multi Channel: Setup → Date/Time | Installer → Startup → Date/Time Adjustment of the date and the time.
  • Page 56 Settings Contrast Setup → Display Adjustment of the contrast of the display. Brightness menu Setup → Display Adjustment of the brightness of the display when the menu is displayed. Brightness idle Setup → Display Adjustment of the brightness of the display in idle mode. Application Installer →...

  • Page 57: Error Code

    Settings The sensor type must be set for each ice detection channel during commissioning. If the "to be defined" set- ting is maintained, an error message with an alarm will be displayed. Factory setting: to be defined, settings: to be defined, 3354, 3356, 3355 Server communication active Installer →...

  • Page 58: Remaining Inhibition Time

    Settings Remaining inhibition time moisture Installer → Information | Installer → Service → ISD channel Single Unit: Installer → Information → ISD channel | Installer → Service → ISD channel System: Multi Channel: Installer → Information → ISD channels → ISD channel <No.> Installer →...

  • Page 59: Energy Consumption Total

    Settings Energy consumption total Installer → Information Single Unit: Installer → Information → ISD channel System: Multi Channel: Installer → Information → ISD channels → ISD channel <No.> Display of the total heating energy used since the device has last been reset to its factory settings. This value is the product of the heating performance and the value of the resettable operating time counter (in kWh).

  • Page 60: Outside Temp

    Settings For further information refer to Messages of heat demand determination on page 79. Outside temp. measured Installer → Information → Heat demand System: Multi Channel: Installer → Information → Heat demand Display of the currently measured outside temperature in °C. Outside temp.
  • Page 61 Settings Alarm relay inverted Installer → Config. modules Single Unit: Installer → Config. modules → System System: Multi Channel: Installer → Config. modules → System Adjustment of the alarm relay’s operating mode. Usually the relay will be activated in case of an alarm, i.e. in case of an error the relay will be deactivated and an error will be signalled.
  • Page 62 Settings Channel coupling Multi Channel: Installer → Config. modules → Zones → Zone <No.> Adjustment of channel coupling. If the coupling is active, the minimum heating time will be activated for all channels in a zone as soon as moisture is detected in one of the channels. Also refer to Channel coupling, page 12.
  • Page 63 Settings Base temperature Installer → Config. modules → ISD channel System: Multi Channel: Installer → Config. modules → ISD channels → ISD channel <No.> Adjustment of the target value for the ground temperature in the base temperature mode. As soon as the outside temperature falls below the defined upper temperature limit, the heating is switched on in order to keep the ground temperature on the defined base temperature level.
  • Page 64 Settings PWM interval time Installer → Config. modules Single Unit: Installer → Config. modules → ISD channel System: Multi Channel: Installer → Config. modules → ISD channels → ISD channel <No.> Adjustment of the time interval for the pre-heating and emergency mode, during which the control circuit is switched on and off again once.
  • Page 65 Settings lead to unfavourable conditions. Otherwise, at very low temperatures, the surface might not be completely heated through. In such a case the thawed ice might freeze again, which would increase the risk of slipperi- ness. Also refer to Pre-heating mode, page 13 and Base temperature mode, page 11. Factory setting: -20 °C, possible settings: -30 to 0 °C Check OT value continuously Installer →...
  • Page 66 Settings Blocking protection active Installer → Config. modules Single Unit: Installer → Config. modules → ISD channel System: Multi Channel: Installer → Config. modules → ISD channels → ISD channel <No.> Activation of a pump blocking protection for water-based heating systems. If the blocking protection is ac- tive, the relay for the pump will be switched on once a day for 40 seconds.
  • Page 67 Settings Pre-heating start temperature Installer → Config. modules → Heat demand System: Multi Channel: Installer → Config. modules → Heat demand Adjustment of the start temperature in the pre-heating mode. This value is part of the characteristic curve used to calculate the percentage duty cycle of the heating (PWM value). Also refer to Pre-heating mode, page 13.
  • Page 68 Settings Ground characteristic Installer → Config. modules → Heat demand System: Multi Channel: Installer → Config. modules → Heat demand Adjustment of the ground characteristic of the open space. This time constant defines the duration that the ground needs to follow an outside temperature jump to 2/3. Also refer to Weather sensor and weather forecast, page 14.
  • Page 69 Settings Condition for display: Gateway communication active. Stop heating? Installer → Service → ISD channel Single Unit: Installer → Service → ISD channel System: Multi Channel: Installer → Service → ISD channels → ISD channel <No.> Possibility to switch off the heating during an ongoing minimum heating time. Factory setting: No, possible settings: No, Yes Start moisture measurement? Installer →...
  • Page 70 When configuring a Multi Channel system with more than two channels, only one 1875-ESM at a time may be connected to the 1873-ESM via TGN and configured. Once the configuration for one device has been completed it can be disconnected from the TGN bus and the next device can be connected and configured.
  • Page 71 Settings Operation in detail Individual change of the week program: Week program 1. Select Menu → Operation → Week program. Operation → Week program System: 2. Press >>. Multi Channel: Operation → System → Week programs 3. Use the plus or minus button (+ or -) to select If the "System"...
  • Page 72 Settings Holiday program Setting the holiday function: Operation → Holiday program System: 1. Select the menu item Holiday program. Multi Channel: Operation → System → Holiday program 2. The Start of holiday window is displayed. By means of the holiday program a control mode 3.
  • Page 73 Settings Password protection on the tekmar website, the device's serial number can be entered and the super password retrieved. Information → Set passwords Please contact the tekmar technical service in case Passwords can be set for three menu levels (Level of problems.

  • Page 74: Troubleshooting

    Troubleshooting Error codes and alarm messages Display Codes Position 1 - 4 Position 1 - 4 Installer → Information Single Unit: Installer → Information → ISD channel System: Multi Channel: Installer → Information → ISD channels → ISD channel <No.> In case of an error the alarm relay is activated and an alarm is raised.
  • Page 75 This indicates an error in the device.  Return device to the tekmar Service to be checked. E xx4x error upon start of Error when moisture measurement is started. Possible reasons:...
  • Page 76 E x1xx moisture could Moisture determination during the measurement impossible.  Check connection/resistance values of the sensor. If not successful, not be deter- mined the sensor has to be checked (resistance check) either on site or at tekmar.
  • Page 77 Troubleshooting Error code Description Explanation/measure E x2xx error heating out- Monitoring of the heating output signals an error, i.e. it may be that the heating element could not be switched on/off. In parallel to the relay in the device there is an electrical circuit which continuously monitors the output (even when switched off).
  • Page 78 Troubleshooting Error code Description Explanation/measure E x4xx error outside The outside temperature is absolutely necessary for the functioning temperature of the pre-heating or base temperature operation. The outside tem- perature can either be determined locally via a sensor of the 1873- ESM or from the weather forecast provided by the internet server.
  • Page 79 Troubleshooting  No values: Messages of heat demand determination Source is faulty (sensor defective, no weather For the calculation of the heat demand the following forecast) states are defined:  Single value:  OAT measurement: Source returns a single value for the current Measurement from the sensor is available (local point in time sensor or wireless sensor, usually only shortly...
  • Page 80 Installer → Config. modules (...) → Monitoring heating output active). Only if the same error persists after the power has been switched on again, contact the tekmar Ser- vice. A possible reason for problems with week programs may be a wrong date and time set for the system. If...
  • Page 81 Troubleshooting Problems with the sensor Resistance values of the temperature unit The connected sensor is monitored continuously. After the sensor cables connected to the T1 und T2 The emergency operation mode will be automatical- terminals have been disconnected, the temperature ly activated if the parameter "Emergency mode with unit can be checked at the wire end ferrules.
  • Page 82 For a functional moisture unit the resistance value is: Ω Type 3354 77 to 94 3356 71 to 81 Further information on troubleshooting can be found under: www.tekmar.de.

  • Page 83: Technical Data

    2 A cage clamp terminals for 2.5 mm², tightening torque ≤ 0.5 Nm Connecting terminals: Combi sensor: tekmar Type 3354, 3356 (or 3355 with conversion kit) Optional temperature sensor (only 1873) tekmar Series 31, e. g. 3154 Enclosure:...
  • Page 84 Technical data Further details according to DIN EN 60730-1: Heat and fire resistance: Category B/D Ball pressure test: +125 °C Rated surge voltage: 4 kV Action type: Type 1B Rated power and load for EMC emission 230 V~, load 0.5 A test:...
  • Page 85 Technical data Dimensions Regulations The product corresponds to the following rules and regulations: EMC Directive Radio Equipment Directive Low-voltage Directive RoHS Directive WEEE-Reg.-No.: DE 75301302...

  • Page 86: Available Accessories

    Ground installation socket for sensor 3355/3356 Gutter sensor 3354 for combined measurement of moisture and tem- perature values Mounting plate for sensor 3354 (copper or zinc) Conversion kit for ground sensor 3355 in case of replacement of an old tekmar ice and snow system 1773...
  • Page 87 Available accessories Weather sensor 3115 Internet Gateway 1880/WLAN-GWI Modbus Gateway 1880/D85-GMR...
  • Page 88 Regelsysteme GmbH Möllneyer Ufer 17 D-45257 Essen mail@tekmar.de www.tekmar.de <ME-1873~5-ESM-EN> Status 2020-09 Subject to change without notice © 2020 tekmar Regelsysteme GmbH...

This manual is also suitable for:

1875-esm18731875

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