Dräger REGARD 3900 Series Instructions For Use Manual
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Dräger REGARD 3900 Series Instructions For Use Manual

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Summary of Contents for Dräger REGARD 3900 Series

  • Page 1 ® REGARD 3900 Instructions for use ® REGARD 3900...
  • Page 2 This page has been left blank intentionally. ® REGARD 3900...
  • Page 3 Contents Contents REGARD ® 3900 Safety-related information Conventions in this document Meaning of the warning notices Typographical conventions Trademarks Description Feature description Intended use Limitations on use Approvals Components General instructions Display PCB Inhibit switch Contrast settings Input module Input module relay settings Relay module Relay module relay settings Output module...

  • Page 4: Table Of Contents

    Contents Operation Display screen Display screen scrolling Gas type or measuring range Over range Under range Maintenance Alarm, fault and activity LEDs Power and inhibit LEDs Internal acoustic alarm sounder External warning devices Control buttons (and remote acknowledgement) LED and display test Fault elimination and messages General Fault with the Polytron remote sensor transmitter...
  • Page 5 Safety-related information Safety-related information – Before using this product, carefully read these instructions for use and those of the associated products. – Strictly follow the instructions for use. The user must fully understand and strictly observe the instructions. Use the product only for the purposes specified in the intended use section of this document.
  • Page 6 Conventions in this document Conventions in this document Meaning of the warning notices The following warning notices are used in this document to alert the user to potential hazards. The meanings of the warning notices are defined as follows: Warning sign Signal word Classification of the warning notice DANGER...
  • Page 7 Description Description Feature description ® The Dräger REGARD 3900 series is a group of control units for continuous monitoring of up to sixteen 4–20 mA remote sensor transmitters, in order to warn against potentially dangerous or harmful conditions. ® ® The series includes the REGARD 3900, 3910 and 3920.
  • Page 8 Description Intended use ® The REGARD 3900 control units are used with 4–20 mA transmitters to provide stationary, continuous monitoring of flammable or toxic gases and vapours as well as oxygen deficiency or surplus. The control unit is primarily intended for use as part of a gas detection system, but can be used with each remote sensor ®...
  • Page 9 Description Markings CE mark of conformity: ATEX marking: II (2) G Using a power supply unit (PSU) which is not provided or installed by Dräger, may require a reassessment of the compliance of the control unit with the EMC Directive and/or the RoHS directive. ®...
  • Page 10 Components Components General instructions The control unit has a display PCB and up to six control modules. The control modules are a combination of input modules, relay modules and output modules, which can be flexibly arranged as far as the control unit allows this. Internally, all control modules and the display PCB are connected using a ribbon cable.
  • Page 11 Components 4.2.2 Contrast settings To adjust the contrast, turn the control using a suitable screwdriver. The LCD screens are temperature-sensitive and therefore adjustment is necessary in very cold or very hot environments. Input module An input module has four channels; each of which allow the current signal from a remote sensor transmitter to be monitored.
  • Page 12 Components The input module terminals are: – Ch1 to Ch4 are channels for 4–20 mA remote sensor transmitters in 2- or 3-wire technology. – A1, A2 and Fault (F1) are terminals for the input module relays. – RR are the terminals for remote acknowledgement, via which a switch that is normally open is connected outside the control unit, which has the same purpose as the button Acknowledge/OK.
  • Page 13 Components 4.4.1 Relay module relay settings RL1 is used to display a system fault. For example: RL1 is deactivated if the ribbon cable from the relay module is disconnected or if an F1 fault signal is received from a remote sensor transmitter of the system. RL1 is preset to: –...
  • Page 14 Components + signal - 0 V The input channel signals duplicate the signal outputs and 0 V but are electrically isolated from the input channels. The signal outputs are current sources that only work if they are connected to a passive load. Input signal (mA) Reading on the display Output channel signal...
  • Page 15 Installation & commissioning Installation & commissioning General instructions The following general instructions should be observed for all installation, repair or maintenance work on the control unit. Information about the transmitters and sensors can also be found in the "Instructions for Use" of the remote sensor transmitter.
  • Page 16 Installation & commissioning ® 5.2.1 REGARD 3900 and 3920 M6 x 10 mm threaded hole Mounting hole Suspension Mounting diagram (not to scale) The console requires a free space of at least 50 mm on the left-hand side so that the front cover can be opened.
  • Page 17 Installation & commissioning ® 5.2.2 REGARD 3910 ® The REGARD 3910 control unit is a modular system which needs to be installed in ® a rack-based system, e.g. in the REGARD 3910 aisle installation kit. When mounting in a rack-based system, the regulatory requirements for electromagnetic compatibility (EMC) and electrical safety must be met.
  • Page 18 Installation & commissioning 5.5.1 AC power supply If the internal 24 V DC power supply unit is not provided by Dräger, it must be ensured that the requirements of the EMC (electromagnetic compatibility) Directive and the Low Voltage Directive have been met. The power supply unit must comply with the following EMC standards - Immunity: EN 61000-6- 2;...
  • Page 19 Installation & commissioning ® – If the HART diagnostics (Highway Addressable Remote Transducer) can be used with the remote sensor transmitters, the supply must comply with the ® HART requirements (see Instructions for Use for the remote sensor transmitter). 5.5.3 AC and DC power supply If both options are used, the AC voltage supply is the primary supply and the DC voltage supply is the supporting supply.
  • Page 20 Installation & commissioning Installation of the control modules ® Output modules are not part of the ATEX EC type examination of the REGARD 3900. If an output module is installed, the control unit must not be used to monitor measures against explosion hazards. The control unit can contain up to six control modules.
  • Page 21 Installation & commissioning The table below shows the combinations. For example, if you use the highlighted table row, the control unit could include the following modules: 3 input modules (up to 12 input channels), 1 relay module (up to 8 relays), two, one or no output modules (16, 8 or 0 output channels).
  • Page 22 Installation & commissioning Relay modules Place a jumper on the appropriate "Relays" terminals on the relay module to ® determine the relay numbers in the REGARD 3900 system. When numbering the relay module, the following should be noted: – If only one relay module is installed, place the jumper at position 1–8. –...
  • Page 23 Installation & commissioning 5.6.3 Connecting control modules and display PCB 24 V DC power supply for the input module Connect all input modules to the DC voltage supply using the cable supplied. Connect the first input module using the long cables (energy supply unit) and connect all of the following input modules in parallel using the short cables (module to module).
  • Page 24 Installation & commissioning Connecting remote sensor transmitters The wiring diagrams in this chapter show the general wiring for remote sensor transmitters. Specific details on the remote terminals, including terminal marking, colour coding, labelling, etc., can be found in the Instructions for Use for the remote sensor transmitter.
  • Page 25 Installation & commissioning 5.7.3 4–20 mA three-wire transmitter ® – Only connect transmitters with a 4–20 mA source output. REGARD 3900 cannot be used with a three-wire transmitter with a 4–20 mA sink output (if necessary, use a sink-source converter). –...
  • Page 26 Installation & commissioning Connecting other external sources The cable cross-section for external units is limited to a maximum of 2.5 mm 0.5 mm 5.8.1 Remote acknowledgement Remote acknowledgement is a switch that has the same functions as the button Acknowledge/OK, but outside the control unit. If a remote acknowledgement is required: –...
  • Page 27 Installation & commissioning 5.8.2 Relay terminals (input and relay modules) With the relay terminals on the input modules (A1, A2 and fault (F1)) and relay modules (RL1 to RL8), a switching function can be provided for remote alarm units such as alarms, fans or other safety equipment. When connecting external units, observe the following: –...
  • Page 28 Installation & commissioning Alarm activated: Normal state activated: ® REGARD 3900...
  • Page 29 Installation & commissioning 5.8.3 Output module terminals Using the output terminal module (Ch1 to CH8), the respective signal of the remote sensor transmitter is output to an external monitoring device or system. – The channel outputs are current sources that only work if they are connected to a passive load.

  • Page 30: Display Screen

    Operation Operation Display screen The display screen is a backlit LCD display with 20 characters and several rows, which provides information on the gases monitored by the control unit. In the normal gas value display, the screen shows four lines of text. –...

  • Page 31: Under Range

    Operation 6.1.4 Under range If the gas value falls under the measuring range (the transmitter signal drops below 3.8 mA - but this is not a maintenance or fault signal), Under-range is displayed. 6.1.5 Maintenance If the transmitter needs to be serviced (the transmitter emits a maintenance signal), Maintenance is displayed.

  • Page 32: Internal Acoustic Alarm Sounder

    Operation Inhibit LED This LED lighting up indicates that the alarms are locked and therefore the functions of the normal gas value monitoring and warning functions of the control unit are inactive. If the LED lights up, the active LEDs flash and the internal acoustic alarm sounder beeps every 30 seconds.

  • Page 33: Control Buttons (And Remote Acknowledgement)

    Operation Latching or non-latching Settings Meaning Latching The relay must be manually reset after an alarm has been activated. Press Acknowledge/OK or carry out a remote acknowledgement: – If the alarm state no longer exists or the relay is acknowledgeable, the relay immediately returns to non-alarm state.

  • Page 34: Led And Display Test

    Operation ● Press Hold / II / ▲ for less than 1 second to switch display scrolling on/off (if using more than 4 channels). ● Press Hold / II / ▲ for longer than 1 second to toggle between the gas type and the measuring range.

  • Page 35: Fault Elimination And Messages

    Fault elimination and messages Fault elimination and messages General Fault Cause Remedy Display shows noth- No power supply to control Check the external supply ing and all LEDs off unit and the wiring and repair Faulty energy supply unit Replace the energy supply unit Faulty internal wiring Check the power distribution...
  • Page 36 Fault elimination and messages Fault Cause Remedy The "Fault (F)" LED Faulty transmitter wiring Check the transmitter wiring lights up for a group and repair of four channels. Faulty ribbon cable Check ribbon cable and repair/replace Faulty input module Replace input module Input module Faulty ribbon cable Check ribbon cable and...

  • Page 37: Fault With The Polytron Remote Sensor Transmitter

    Fault elimination and messages Fault Cause Remedy Transfer of configu- No power supply to control Check the external supply ration to or from the unit and the wiring and repair control unit not possi- Faulty interface unit (RS- Check the interface unit and 232) repair/replace Display shows a...

  • Page 38: Maintenance

    Maintenance Maintenance Observe EN 60079-29-2 and the relevant national regulations in the country of use. There are no specific servicing tasks for the REGARD® 3900 control unit. Carry out maintenance or calibration tasks in accordance with the instructions and the intervals specified in the instructions for use for the remote sensor transmitter. Configuration and calibration of the control unit Using the configuration and calibration tools for the REGARD®...

  • Page 39: Main Menu

    Maintenance Button Feature ▼ Navigate down/forwards in the menus and the character list Calibration: _ _ _ 1 Settings: _ _ _ 2 To open and use the configuration system: 1. Press ▼ for longer than 1 second and then press OK. 2.

  • Page 40: Settings Menu

    Maintenance Feature Description Span calibra- Calibrate the span either by creating calibration gas at the tion remote sensor transmitter or by influencing the output signal of the transmitter using the transmitter control to simulate a gas signal. Carry out zero-point calibration: 1.

  • Page 41: Channel Menu

    Maintenance Feature Description Fault relay Sets the F1 relay (Fault 1) with regard to latching or non-latch- ing. Channel Selects the settings for the input channel (4–20) (see chapter A.5.1 on page 34). Relay Selects the relay settings (see chapter A.5.2 on page 35). Passwords Resets the access passwords.

  • Page 42: Relay Menu

    Maintenance Feature Description A1/A2/A3 alarm Enter a threshold for the alarm of between 4% and 100% of measuring range (if A3 is set to zero, alarm A3 is switched off). Also select Rising or Falling, in order to determine whether the alarm should be activated for rising or falling gas values.
  • Page 43 Maintenance Create a common alarm for a group of N channels with the relay configured as a group alarm 1 of N and the corresponding channels defined in the group alarm group. The following settings are only required for common, single and group alarms. Feature Description Alarm type...

  • Page 44: Disposal

    Disposal Disposal This product must not be disposed of as household waste. This is indicated by the adjacent symbol. You can return this product to Dräger free of charge. For information please contact the national marketing organizations or Dräger. ® REGARD 3900...

  • Page 45: Technical Data

    Technical data Technical data Versions with operating console (REGARD® 3900 and 3920) Dimensions 415 x 305 x 175 mm Weight approx. 5 kg Material ABS-VO Degree of protection IP65 Cable entry M20 (qty 30) All versions Cable x-section Max. 2.5 mm Min.
  • Page 46 Technical data Output range 0.1 to 21.7 mA Insulation 50 V Resolution 0.1 mA Accuracy Within 1% of the input signal (minus zero termi- nal) Maximum load 500 Ω Storage temperature -25°C to +70°C Transfer function Input signal Indication on the display >...

  • Page 47: Order List

    Order list Order list The components of the REGARD® 3800 series are not compatible with the REGARD® 3900 series. Description Quantity Order number REGARD® 3900 4208780 (Operating console with display PCB) REGARD® 3910 4208830 (Frame group with display PCB) REGARD® 3920 4208850 (Operating console with display PCB) Display PCB (REGARD®...

  • Page 48: Declaration Of Conformity

    Declaration of Conformity Declaration of Conformity EU-Konformitätserklärung EU-Declaration of Conformity Dokument Nr. / Document No. 4209434_08 Wir / we Dräger Safety UK Ltd, Riverside Business Park, Blyth, Northumberland, UK erklären in alleiniger Verantwortung, dass das Produkt declare under our sole responsibility that the product Gasmesszentrale REGARD 3900, 3910, 3920 Gas Detection System REGARD 3900, 3910, 3920 TÜV 19 ATEX 8400 X...
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  • Page 51 Declaration of Conformity ® REGARD 3900...
  • Page 52 Manufacturer Dräger Safety AG & Co. KGaA Revalstraße 1 D-23560 Lübeck Germany +49 451 8 82-0 4208800 – IfU 4675.866 en © Dräger Safety AG & Co. KGaA Edition: 6 – 2019-06 (Edition: 1 – 2016-05) Subject to change  www.draeger.com...

This manual is also suitable for:

Regard 3900Regard 3910Regard 3920

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