Ports and sockets on the back of the unit ..................28 Connection for 24 V DC supply voltage - pin assignment ..............28 Pin assignment of data line between URB 55 and LRR 1-52, LRR 1-53 ..........28 LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
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Home screen of LRR 1-52, LRR 1-53 conductivity controllers ............46 Alarm and fault indications ........................47 Opening the alarm history ......................48 System settings ..........................49 System information ..........................49 Setting the date/time..........................50 Password ............................50 Network settings ..........................51 LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
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Taking the LRR 1-52, LRR 1-53 out of service ...................67 Taking out of service URB 55 ......................67 Disposal ..............................68 Returning decontaminated equipment ....................68 UL components ...........................68 LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
How to use this Manual This Installation & Operating Manual describes the correct use of the LRR 1-52, LRR 1-53 conductivity controller in combination with the URB 55 visual display and operating unit. It applies to persons who integrate this equipment in control systems, install, bring into service, operate, maintain and dispose of this equipment.
Warning of a situation that may result in minor or moderate injury. ATTENTION ATTENTION Warning of a situation that results in damage to property or the environment. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Modify the cell constant only if the temperature coefficient setting is no longer adequate for correct compensation. Change it until the reading and the indicated conductivity match. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
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Controller with proportional (P) and integral (I) control. LRR .. / LRG .. / LRGT .. / URB .. GESTRA equipment and type designations, see page 9. SELV Safety Extra Low Voltage LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Usage for the intended purpose LRR 1-52 and LRR 1-53 conductivity controllers can be used in combination with LRG 1x-x conductivity electrodes and LRGT 1x-x conductivity transmitters as conductivity controllers and limiters in steam boilers and hot water installations and in condensate and feedwater tanks. The conductivity controller indicates when MAX or MIN conductivity has been reached, opens or closes a continuous blowdown valve and can actuate an intermittent blowdown valve.
Applicable standards for the LRR 1-52, LRR 1-53 The LRR 1-52, LRR 1-53 conductivity controller has been tested and approved for use in the scope governed by the following directives and standards: Standards: UL 60730-1 and CAN/CSA E60730-1 ■...
Do not bring any equipment into service that does not have its own specific rating plate. The rating plate indicates the technical features of the equipment. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Specialist staff Plant construction Fig. 2 Notes on product liability The manufacturer cannot accept any liability for damages resulting from improper use of the equipment. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
If the minimum or maximum conductivity is reached, the appropriate output contact is opened. What happens if the MAX limit is exceeded If used as a conductivity limiter, the LRR 1-52, LRR 1-53 conductivity controller does not inter- ■ lock automatically when the MAX limit is exceeded.
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Test of MIN/MAX output relays or actuation of intermittent blowdown valve Manual/automatic mode Password protection Level and conductivity controllers can be operated simultaneously Fig. 4 LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
1 x actual value output 4 - 20 mA, e.g., for indicating the actual value ■ Max. load resistance 500 W ■ Inductive loads must have interference suppression (RC combination) as specified by the ■ manufacturer LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
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Approx. 1.1 lb (0.5 kg) ■ Other information Incorporated type 1 action operating control ■ Pollution degree 2, impulse voltage DC supply = 500 V, AC output = 2500 V ■ LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Front panel (W x H) 5.79 in (147 mm) x 4.21 in (107 mm) ■ Switch panel cutout (W x H) 5.35 in (136 mm) x 3.78 in (96 mm) ■ Mounting depth 2.05 in (52 mm) + 0.32 in (8 mm) protruding ■ LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
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If the equipment is out of service for six months or more, we recommend connecting it to the supply voltage for one day, to recharge the battery. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
For Use on a Flat Surface of a Type 12 4X , ambient temperature Enclosure GESTRA AG Münchener Straße 77 Manufacturer 28215 Bremen www.gestra.com Fig. 7 LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
4-pole code switch for configuring the Equipment settings, conductivity controller see page 24. Front membrane with status LED, see page 24 Terminal box Support rail TH 35 LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Installing the LRR 1-52, LRR 1-53 conductivity controller The LRR 1-52, LRR 1-53 conductivity controller snaps onto a TH 35 support rail in a control cabinet. DANGER DANGER There is a risk of electric shock during work on electrical systems.
5.79 in (147 mm) 2.05 in (52 mm) Fig. 9 Required installation aperture in the control cabinet door or switch panel 5.35 in (136 mm) Fig. 10 LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Insert the supplied fastening elements and tighten until the corners of the display frame are in contact with the gasket. Remove the protective film from the display. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Connect the conductivity controller and all associated components as shown in ■ wiring diagrams Fig. 16 to Fig. 18 in this Manual. Do not use unused terminals as jumpers or support terminals. ■ LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
■ Use an external 2.5A slow-blow fuse to protect the switching contacts. ■ If used as a conductivity limiter, the LRR 1-52, LRR 1-53 conductivity controller does not ■ interlock automatically when the MAX limit is exceeded. If the installation requires an interlock, this must be implemented in the downstream (safety) ■...
Use a shielded, multi-core TC-ER control cable with minimum wire size AWG18, e.g., OELFLEX ■ CONTROL TM CY 3G1. Maximum cable length = 328 ft (100 m). ■ Route connecting cables separately from power cables. ■ LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
11 and 12 of the two controllers to one another as follows: Terminal 11 (controller 1) to terminal 11 of controller 2 ■ Terminal 12 (controller 1) to terminal 12 of controller 2 ■ LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Check that the plant is not carrying live voltage before commencing work. ■ You can change the input and function of the LRR 1-52, LRR 1-53 conductivity controller at any time if necessary using code switch D (see Fig. 19).
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Terminal 3/4 (Out 2) as manipulated variable output (Yw) Electrical conductivity measured in µS/cm (factory setting) Electrical conductivity measured in ppm * Controller software version 311178.13 or later Fig. 19 LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Status display of the LRR 1-52, LRR 1-53 LRR 1-52 Fig. 20 Multicolor LED (amber/green/red), amber = power up / green = in operation / red = malfunction LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
If just one controller is connected, the ■ home screen of this controller will be shown (example). LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Color coding of input and status fields Background color Description, function Gray Unavailable/static White Input field Green Status information, On, OK status Status information, Alarm status Fig. 21 LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
The keypad shows the old value (Old) and the limits (Min/Max). Your entries must remain within these limits. Function keys: Delete last digit. Confirm entry. Discard entries and close keypad. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Scroll bar for long lists and menus You can use the scroll bar to navigate up and down long lists and menus in order to select the desired parameters. Scroll bar LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Logged in with password/ Alarm history Log off Info Reset alarm Time Alarm number Password Alarm coming Network Alarm going Modbus TCP overview (optional) Reset alarm LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
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Start pump in manual mode Max alarm switchpoint Automatic Off/On Min alarm switchpoint Relay test Off/On Max switchpoint Proportional band Min switchpoint Reset time Set point Valve runtime LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
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Intermittent blowdown time Intermittent blowdown active Pulse interval 24h flushing active Controller on standby Continuous blowdown valve in Controller in manual mode operating position Fig. 22 LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Date and time the event was reset. Options: Reset alarms and errors. Finished “alarms” are deleted after they have been reset. Open the alarm history, see page 47. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
All alarms are stored in the alarm history. The memory can hold 300 alarms. Alarms are stored cyclically and are restored after a power failure. Open the alarm history. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Description of display: The connected controller(s) are shown with their software version. Press the button to update a system or view installed (new) equipment. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Changing your password: Tap the input field. Enter the new password in the top line and confirm it by entering it again in the second line. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
URB 55 on the computer. To access the URB 55, use the previously set network parameters. You also need to switch on the service. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Manipulated variable Change of color on alarm The bar chart column turns red in the event of an alarm. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
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This is also the case for all further 24h flushing operations. Display of remaining valve runtime (Ti) if 24h flushing is switched on LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Zoom in/out using these buttons or two fingers (pinch gesture) Close the window LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
View if configured as an intermittent blowdown controller If the MIN relay is configured as an intermittent blowdown controller, the icons on the display change accordingly. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
57. Active parameters when a feedback poten- tiometer is connected to the conductivity controller. The current valve position is shown in percent. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
When the valve is in the (OPEN) end position, confirm this position. The raw data from the central field is automatically entered in the 100% (OPEN) field. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Enter the measuring range for your particular conductivity controller. Temperature compensation On/Off Set temperature coefficient Proceed in the same way as when setting correction factor C. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
In this case, you have no choice but to reject the calculated correction factor “C”. A value > 5 1/cm indicates heavy soiling of the conductivity electrode. The conductivity electrode must be cleaned. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Tap the input field. You will see the screen containing the default measuring ranges. Tap the measuring range that is set on the conductivity transmitter. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Establish the real valve runtime, e.g., from “Closed” to “Open” (0 - 100%). Operating position Defined opening of the continuous blowdown valve. Closes on standby. Fig. 23 LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Intermittent blowdown pulses Number of pulses Pulse interval (in seconds) Set the time between the individual intermittent blowdown pulses. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Switchpoints implausible E.013 Reset the switchpoints MIN > MAX All error codes from E.001 to E.027 not listed here are available as reserves Fig. 24 LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
The URB 55 is not correctly connected to the data interface. ■ The conductivity controller is not switched over when two units are connected. Incorrect parameter display Remedy: Reboot the URB 55. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Disconnect all poles of the supply cable from the mains and secure so it cannot be ■ switched back on. Check that the plant is not carrying live voltage before commencing work. ■ LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
Unplug all plug and socket connections. Unscrew the screws and remove the retaining clips. Carefully push the unit out of the cutout in the door of the control cabinet. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
UL components LRR 1-52 and LRR 1-53 conductivity controllers are registered under XACN.E513189. The URB 55 visual display and operating unit is registered under NRAQ.E199715. LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
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For your notes LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
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For your notes LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
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For your notes LRR 1-52, LRR 1-53, URB 55 - USA - Installation & Operating Manual - 850703-00...
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You can find our authorized agents around the world at: www.gestra.com GESTRA AG Münchener Straße 77 28215 Bremen Germany Tel. +49 421 3503 0 +49 421 3503 393 e-mail info@de.gestra.com www.gestra.com 850703-000/09-2021cm (809156-00) · GESTRA AG · Bremen...
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