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GESTRA spector compact LRGT 16-2 Installation Instructions Manual

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GESTRA Steam Systems
LRGT 16-1
EN
English
LRGT 16-2
LRGT 17-1
KS 90
Installation Instructions 818726-02
Conductivity Transmitter LRGT 6-
Conductivity Transmitter LRGT 6-2
Conductivity Transmitter LRGT 7-
Industrial Controller KS 90


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Summary of Contents for GESTRA spector compact LRGT 16-2

  • Page 1 GESTRA Steam Systems LRGT 16-1 English LRGT 16-2 LRGT 17-1 KS 90 Installation Instructions 818726-02 Conductivity Transmitter LRGT 6- Conductivity Transmitter LRGT 6-2 Conductivity Transmitter LRGT 7- Industrial Controller KS 90...

  • Page 2: Table Of Contents

    Contents Page Important Notes Usage for the intended purpose ......................5 Safety Note .............................5 Danger ..............................5 ATEX (Atmosphère Explosible) .........................5 Note on the Declaration of Conformity / Declaration by the Manufacturer ..........5 Explanatory Notes Scope of supply ............................6 Description .............................6 Function ............................. 6, 7 Technical Data LRGT 6-, LRGT 6-2, LRGT 7- .....................
  • Page 3 Contents – continued – Page Basic Settings Factory setting .............................23 Establishing measuring range and actual value output ..............23, 24 Checking temperature coefficient setting T ..................25 Commissioning Procedure Checking electrical connection ......................26 Applying mains voltage .........................26 Note ..............................26 Operation Correcting the measured value ......................27 Checking the temperature coefficient setting T ..................27 Adapting cell constant ........................
  • Page 4 Contents – continued – Page Dimensions KS 90 ..............................37 Functional Elements KS 90 ..............................38 Versions Supply voltage ............................39 Mounting Installation in control cabinet door .......................40 Attention ...............................40 Note ..............................40 Example of installation ..........................40 Electrical Connection Connecting the industrial controller KS 90.....................4 Note ..............................4 Wiring diagram LRGT 6-, LRGT 6-2, LRGT 7-, KS 90 .............

  • Page 5: Important Notes

    For details on the conformity of our equipment according to the European Directives see our Declaration of Conformity or our Declaration of Manufacturer. The current Declaration of Conformity / Declaration of Manufacturer are available in the Internet under www.gestra.de/documents or can be requested from us.

  • Page 6: Explanatory Notes

    Explanatory Notes Scope of supply LRGT 16-1  Conductivity transmitter LRGT 6-  Joint ring 33 x 39, form D, DIN 7603, .430, bright annealed  Installation manual LRGT 16-2  Conductivity transmitter LRGT 6-2  Joint ring 33 x 39, form D, DIN 7603, .430, bright annealed  Installation manual LRGT 17-1  Conductivity transmitter LRGT 7-...

  • Page 7: Function

    Explanatory Notes – continued – Function – continued – LRGT 16-1, LRGT 17-1 und LRGT 16-2 The electrical conductivity is a function of temperature. A resistance thermometer integrated in the electrode measures the fluid temperatures so as to relate the measured values to the reference temperature.

  • Page 8: Technical Data

    Technical Data LRGT 16-1, LRGT 16-2, LRGT 17-1 Type approval TÜV.WÜL.xx-003 GL 33254-06 HH Service pressure LRGT 6-: 32 bar at 238 °C LRGT 6-2: 32 bar at 238 °C LRGT 7-: 60 bar at 275 °C Connection Screwed " BSP (ISO 228-) Materials Electrode screw-in body: .457, X6CrNiMoTi7-2-2 Measuring electrode(s): .457, X6CrNiMoTi7-2-2...
  • Page 9 Technical Data – continued – LRGT 16-1, LRGT 16-2, LRGT 17-1 – continued – LRGT 16-1, LRGT 17-1 Measuring range *) (µS/cm at 25 °C) Current output mA = µS/cm 4 mA 20 mA Preferred measuring range to 500 µS/cm corresponds to corresponds to 000...

  • Page 10: Name Plate / Marking

    Technical Data – continued – Name plate / marking Safety note Equipment designation Pressure rating, screwed connection, material number Application specifications Electric rating Measuring range Specification of actual value output CE marking Disposal note Manufacturer Spare part specifications Fig. 1 Corrosion resistance When used for its intended purpose the safe functioning of the equipment will not be impaired by corrosion.

  • Page 11: Dimensions

    Technical Data – continued – Dimensions b = 68 [mm] A.F. 4 000 " to EN ISO 228- ∅ 40 " to EN ISO 228- RA 3.2 ∅ 28 Fig. 2 LRGT 16-1...
  • Page 12 Technical Data – continued – Dimensions – continued – b = 68 Cable gland [mm] A.F. 4 000 " to EN ISO 228- ∅ 40 " to EN ISO 228- RA 3.2 ∅ 28 Fig. 3 LRGT 17-1...
  • Page 13 Technical Data – continued – Dimensions – continued – b = 68 [mm] A.F. 4 000 " to EN ISO 228- ∅ 40 " to EN ISO 228- RA 3.2 ∅ 28 Fig. 4 LRGT 16-2...

  • Page 14: Functional Elements

    Functional Elements LRGT 16-1, LRGT 16-2, LRGT 17-1 Fig. 5 Toggle switch white Fig. 6 LRGT 16-1 (without cover plate)

  • Page 15: Key

    Technical Data / Functional Elements LED , green LED 2, red Code switch Joint ring 33 x 39, form D, DIN 7603, .430, bright annealed Cover screws (cross recess head screws M4) EMC cable gland M 20 x .5 Housing cover Measuring length and length of installation Terminal strip Fixing screws for electronic circuit board...

  • Page 16: Installation

    Installation Installation notes Attention The seating surfaces and threads on the vessel and mounting flange must be  accurately machined. Use only the supplied ring joint 33 x 39, form D, DIN 7603, .430, bright annealed.  Do not insulate the threads with hemp or PTFE tape. ...

  • Page 17: Examples Of Installation

    Examples of Installation Conductivity monitoring, direct installation of conductivity transmitter via lateral flanged connection ~ 250 " BSP EN ISO 228- LRGT 6- LRGT 6-2 LRGT 7- Fig. 7 R*: LRGT 6-, LRGT 7- R = 30 mm LRGT 6-2 R = 60 mm Conductivity monitoring and continuous blowdown control, direct installation of conductivity trans- mitter via measuring pot and connection of a continuous blowdown valve...

  • Page 18: Key

    Examples of Installation – continued – Conductivity monitoring and continuous blowdown control, installation of conductivity transmitter in blowdown line via separate measuring pot Outlet DN 5-40 " BSP EN ISO 228- LRGT 6- LRGT 6-2 LRGT 7- Inlet DN 5-40 Fig.

  • Page 19: Electrical Connection

    Electrical Connection LRGT 16-1, LRGT 16-2, LRGT 17-1 The terminal box is screwed to the electrode by means of a self-locking fixing nut. Before establishing the electrical connection you can turn the terminal box by max. +/– 80 ° to the desired position (cable outlet).

  • Page 20: Connecting The Conductivity Transmitter

    Electrical Connection – continued – Connecting the conductivity transmitter – continued – Fig. 10 Cap nut Sealing ring Lamellar insert Braided screen Gland body Shielded cable...

  • Page 21: Safety Power Supply Unit For Lrgt 6-, Lrgt 6-2, Lrgt 7

    Electrical Connection – continued – Safety power supply unit for LRGT 16-1, LRGT 16-2, LRGT 17-1 To supply the conductivity transmitter with 24 V DC, a safety power supply unit (PSU), e.g. Siemens SITOP power 05, must be used; this must provide a level of isolation against voltages hazardous to touch that at least meets the requirements for double or reinforced insulation as per DIN EN 5078 or DIN EN 600- or DIN EN 60730- or DIN EN 60950 (electrically protective separation).

  • Page 22: Wiring Diagram For Conductivity Transmitter Lrgt 6-, Lrgt 7

    Electrical Connection – continued – Wiring diagram for conductivity transmitter LRGT 16-2 Terminal lug Toggle switch, white Measuring electrode Temperature sensor Pt 000 Earth Connecting point for 4 - 20 mA functional earth load, max. 750 Ω Fig. 12 24 V DC...

  • Page 23: Basic Settings

    Basic Settings Factory setting The conductivity transmitter features the following factory set default values: LRGT 16-1, LRGT 17-1 0.5 µS/cm to 500 µS/cm (at 25°C) preferred measuring range Measuring range:  Temperature coefficient: 2. (% / °C)  LRGT 16-2 Measuring range: 00 µS/cm to 7000 µS/cm (at 25 °C) ...
  • Page 24 Basic Settings – continued – Establishing measuring range and actual value output – continued – LRGT 16-2 Code switch Current output mA = µS/cm Measuring range 4 mA is 20 mA is (µS/cm at 25 °C) equivalent to equivalent to 3000 3000 5000...

  • Page 25: Checking Temperature Coefficient Setting T K

    Basic Settings – continued – Checking temperature coefficient setting T For a linear compensation of the measured conductivity value based at 25 °C the temperature coeffi- cient T is set at our works to 2. % per °C. Once the service temperature is reached you can check this setting by carrying out a comparison measurement –...

  • Page 26: Commissioning Procedure

    Commissioning Procedure Checking electrical connection . Check that the conductivity transmitter is wired in accordance with the wiring diagram (Fig. 11, 12, page 2, 22). 2. Make sure that the mains voltage is the same as indicated on the name plate. Applying mains voltage Apply mains voltage.

  • Page 27: Operation

    Operation Correcting the measured value If the indicated conductivity reading differs from the measured comparison value check and  re-adjust the temperature coefficient setting T (see section “Settings” on page 25). Only if the temperature coefficient setting is no longer sufficient for the correction should the cell ...

  • Page 28: Functional Test

    Operation – continued – Adapting cell constant – continued – Code switch LED indicator Deviation of the indicated conductivity Function green No change Indicated value < Cell constant Rapidly measured comparative value increases flashing Indicated value > Cell constant Rapidly measured comparative value decreases flashing...

  • Page 29: Leds And Malfunction Indication

    Operation – continued – LEDs and malfunction indication The two LEDs in the centre of the electronic insert indicate the status of the conductivity transmitter. Normal operation Green LED Red LED Current output [mA] Conductivity 0 to +0 % proportional to measured value of measured range Conductivity 0 to +90 % proportional to measured value...

  • Page 30: Malfunctions

    Malfunctions Fault-finding list for troubleshooting Equipment is not working Fault: No supply voltage. Remedy: Apply power and check all electrical connections. Fault: Electronic insert of the conductivity transmitter defective. Remedy: Replace electronic insert. Fault: Mass connection to vessel interrupted – no function. Remedy: Clean seating surfaces and screw in electrode with metal joint ring 33 x 39, form D, DIN 7603, made from .430, bright annealed.

  • Page 31: Cleaning The Measuring Electrode

    Malfunctions – continued – Fault-finding list for troubleshooting – continued – LED display: Red and green LEDs are flashing alternately. Current output: 0.5 mA Fault: Electrical connections to resistance thermometer interrupted or short-circuited, thermometer defective. Remedy: Check thermometer connections (electronic insert, terminal lugs 5 – 6). Replace equipment if necessary.

  • Page 32: Exchanging The Electronic Insert

    Malfunctions – continued – Exchanging the electronic insert . Unscrew cover screws B and remove housing cover D. 2. Pull electrode wires from terminal lugs K on circuit board. Detach terminal strip F. 3. Undo the functional earth H connection. 4.

  • Page 33: Decommissioning

    Decommissioning Danger Risk of severe burns and scalds all over the body. Depressurise the vessel or measuring pot (0 bar) and make sure that it has cooled down to room temperature (20 °C) before de-installing the conductivity transmitter. Exchanging the conductivity transmitter .

  • Page 34: Industrial Controller Ks 90

    Industrial Controller KS 90 Important Notes Usage for the intended purpose The industrial controller KS 90 in conjunction with the conductivity transmitter LRGT 6-, LRGT 6-2 or LRGT 7- is designed for controlling continuous blowdown in steam boilers. Safety notes The equipment must only be installed and commissioned by qualified and competent staff.

  • Page 35: Explanatory Notes

    Explanatory Notes Scope of supply KS 90  Industrial controller KS 90 in DIN slide-in case  Installation manual Function The measuring current of the conductivity transmitter LRGT 6-, LRGT 6-2 or LRGT 7- is evaluated by the industrial controller KS 90 as actual value. The KS 90 is a three-position stepping controller that converts the difference between the actual value and the setpoint into actuating signals for the electric motor-actuated continuous blowdown valve.

  • Page 36: Name Plate Ks 90

    Explanatory Notes – continued – Name plate KS 90 Fig. 13...
  • Page 37 Dimensions KS 90 min. 48 +0.6 Fig. 14...
  • Page 38 Functional Elements KS 90 Front view Yellow LED lit: continuous blowdown valve closes Yellow LED lit: continuous blowdown valve opens Actual value Setpoint Red LED lit: Alarm 2 (value outside limits) Selector/release key Increase value Decrease value Automatic / Manual Green LED lit: Alarm  –...
  • Page 39 Versions The following versions of the industrial controller must be used: Supply voltage 230/5 V AC 9404 410 3 2 0 0 1 9404 410 5 2 0 0 1 24 V AC...

  • Page 40: Attention

    Mounting Installation in control cabinet door (see Fig. 14, page 37 and Fig. 16) + 0.6 + 0.8 . Dimension of panel cut-out: 45 x 92 2. Use the supplied mounting brackets to install the industrial controller KS 90. The KS 90 can be installed in any position, i. e. it is also suitable for installation in an inclined control desk.
  • Page 41 Electrical Connection Connecting the industrial controller KS 90 . Connecting earth If outside interference voltages (concerns also H. F. interferences) act on the equipment, malfunc- tions may occur. To discharge interferences and ensure electromagnetic immunity, an earth must be connected. Terminal 8 (Fig. 17, see page 42) must be connected to earth potential by means of a short cable (approx.
  • Page 42 Electrical Connection – continued – Wiring diagram LRGT 16-1, LRGT 16-2, LRGT 17-1, KS 90 KS 90 Controller KS 90 KS 90 Regler KS 90 Connector Limiter Anschlussstecker Begrenzer Grenzwert limit Rel 1 Rel 2 Rel 3 24 23 Auxiliary relay for burner switch Hilfsrelais-Brennerschalter Ein/Aus On/Off...
  • Page 43 Electrical Connection – continued – Wiring diagram LRGT 16-1, LRGT 16-2, LRGT 17-1, KS 90 – continued – Output 1: Continuous blowdown valve closes, relay contact closed Output 2: Continuous blowdown valve opens, relay contact closed Output 3: Max. limit exceeded, relay contact open Attention If the MAX contact (72 hrs.

  • Page 44: Setting Up The Industrial Controller Ks 90

    Setting up the industrial controller KS 90 Operating structure The operating and indicating elements of the industrial controller KS 90 are shown on page 38, Fig. 15. The operating structure of the industrial controller comprises three levels: Operating level  Parameter setting level ...
  • Page 45 Setting up the industrial controller KS 90 – continued – Configuration level In the configuration level the industrial controller is adapted to its control task. For this purpose it is necessary to key completely through the configuration level. Hold down selector key for min.
  • Page 46 Setting up the industrial controller KS 90 – continued – Configuration level – continued – Press selector key briefly. The adjusted value is saved and the display shows the next configuration value. Briefly To enter the configuration value (2800) press keys several times.
  • Page 47 Setting up the industrial controller KS 90 – continued – Configuration level – continued – To enter the configuration value 000 press keys several times. Setting 000: Reaction in the event of sensor alarm like X < W: Valve motors to closed position. Several times briefly Press selector key briefly.
  • Page 48 Setting up the industrial controller KS 90 – continued – Configuration level – continued – Press selector key briefly. All modifications become effective and the equipment leaves the configuration level and goes back to the operating level. Briefly...
  • Page 49 Setting up the industrial controller KS 90 – continued – Parameter level At parameter level, the equipment is adapted to the controlled system. Only the parameters that are required for the configured equipment are shown. For a table listing all possible parameter settings refer to page 6.
  • Page 50 Setting up the industrial controller KS 90 – continued – Parameter level – continued – Press selector key briefly. The adjusted parameter setting becomes effective and the next parameter can be entered. Briefly To set the parameter Limit contact 1 low press keys several times.
  • Page 51 Setting up the industrial controller KS 90 – continued – Parameter level – continued – To set the parameter Limit contact 1 high press keys several times. Required setting: ---- Do not change the parameter setting Limit contact 1 high afterwards! Several times briefly Press selector key...
  • Page 52 Setting up the industrial controller KS 90 – continued – Parameter level – continued – Press selector key briefly. The adjusted parameter setting becomes effective and the next parameter can be entered. Briefly To set the parameter Operation locking press keys several times.
  • Page 53 Setting up the industrial controller KS 90 – continued – Parameter level – continued – To set the parameter Lower setpoint limit press keys several times. Possible adjustment range: Beginning of measuring range (InL)…upper setpoint limit (SPH – ) Several times briefly Press selector key briefly.
  • Page 54 Setting up the industrial controller KS 90 – continued – Parameter level – continued – Press selector key briefly. The adjusted parameter setting becomes effective and the next parameter can be entered. Briefly To set the parameter Proportional band press keys several times.
  • Page 55 Setting up the industrial controller KS 90 – continued – Parameter level – continued – To set the parameter Integral time press keys several times. Setting: 0 Several times briefly Press selector key briefly. The adjusted parameter setting becomes effective and the next parameter can be entered.
  • Page 56 Setting up the industrial controller KS 90 – continued – Parameter level – continued – Press selector key briefly. The adjusted parameter setting becomes effective and the next parameter can be entered. Briefly To set the parameter Actuator run time press keys several times.
  • Page 57 Setting up the industrial controller KS 90 – continued – Parameter level – continued – To set the parameter Min. step time press keys several times. Possible adjustment range: 0.…2.0 sec. Setting: 2.0 sec. Several times briefly Press selector key briefly.
  • Page 58 Setting up the industrial controller KS 90 – continued – Parameter level – continued – Press selector key briefly. The adjusted parameter setting becomes effective and the next parameter can be entered. Briefly To set the parameter Filter time constant press keys several times.
  • Page 59 Setting up the industrial controller KS 90 – continued – Parameter level – continued – To set the parameter Decimal point press keys several times. Possible adjustment range: 0, , 2 Setting: 0 (no decimal point) applicable for parameters SP2, LCL, SPL and SPH. Several times briefly Press selector key briefly.
  • Page 60 Setting up the industrial controller KS 90 – continued – Parameter level – continued – Press selector key briefly. The adjusted parameter setting becomes effective and the next parameter can be entered. Briefly To set the parameter End of measuring range press keys several times.
  • Page 61 Setting up the industrial controller KS 90 – continued – Parameter level – continued – The following table lists all possible parameters: Please first set the beginning and the end of the measuring range (InL, InH) and then the lower and ...
  • Page 62 Setting up the industrial controller KS 90 – continued – Parameter level – continued – Conductivity transmitter LRGT 16-1, LRGT 17-1 Controller Measuring range*) (µS/cm at 25 °C) I N L / S P L I N H / S P H 000 000 2000...
  • Page 63 Setting up the industrial controller KS 90 – continued – Operating level Change setpoint Change setpoint Automatic operation Manual operation Change control output This level is for process control. Indication of actual value and setpoint In manual and automatic operating mode the first display line shows the actual value X and the last display line the setpoint W.

  • Page 64: Malfunction Messages

    Setting up the industrial controller KS 90 – continued – Operating level – continued – Changing the control output (only possible during manual operation) Press manual/automatic key The equipment switches from automatic to manual operation. Briefly Briefly press selector key The control output Y is indicated in the lower display line.

  • Page 65: Troubleshooting

    Troubleshooting Fault-finding list for troubleshooting Fault: Failure of voltage supply. Remedy: Apply supply voltage. Make sure that the supply voltage and frequency are in accordance with the ratings indicated on the name plate of the industrial controller. Fault: Faulty connections to conductivity transmitter or final controlling elements. Remedy: Check all connections to conductivity transmitter and final controlling elements.
  • Page 66 For your notes...
  • Page 67 For your notes...
  • Page 68 Agencies all over the world: www.gestra.de 88726-02/06-200cm (808546-04) · GESTRA AG · Bremen · Printed in Germany...

This manual is also suitable for:

Spector compact lrgt 16-1Spector compact lrgt 17-1Spector compact ks 90

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