GESTRA LRGT 17-1 - User Manual

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Installation & Operating Manual

EN

English

Conductivity Controller LRR

Visual Display and Operating Unit URB

LRR 1-52

LRR 1-53

URB 55

850645-01

Table of Contents

Other manuals for GESTRA LRGT 17-1

Installation & Operating Instructions28 pages

Questions and Answers

M
Melanie KennedyAug 9, 2025
What to do if GESTRA Measuring Instruments equipment fails to work?
- M
  millerangelAug 9, 2025
  If your GESTRA Measuring Instruments equipment isn't working, start by checking the power supply and all electrical connections to rule out a power failure. If the issue persists, the electronic circuit board might be faulty, so you should check or replace it. Also, ensure the earth connection to the vessel isn't interrupted; clean the seating surfaces and screw in the conductivity transmitter with a new sealing ring, avoiding insulation of the electrode thread.
B
Bryan JohnsonAug 17, 2025
Why is GESTRA Measuring Instruments equipment not working accurately?
- A
  Angela BoydAug 17, 2025
  Inaccurate readings from GESTRA Measuring Instruments can stem from several causes. Start by checking for dirt on the transmitter measuring electrode(s) and clean them if necessary. For LRGT 16-2 models, ensure the spacer disc PEEK 8 is correctly positioned. Also, if the conductivity reading is higher than expected, reduce the temperature coefficient during commissioning or the cell constant during operation. Conversely, if the reading is lower, increase these values. If adjusting the cell constant doesn't resolve the issue, remove the conductivity transmitter and clean the measuring surface or electrodes.
T
Thomas MurphyAug 31, 2025
How to prevent electric shock when working on GESTRA LRGT 17-1 Controller electrical systems?
- L
  lopezlindaAug 31, 2025
  To avoid electric shock when working on GESTRA Controller electrical systems: * Always switch off the voltage to the equipment before working on the terminal strips (installation, electrical connection, disassembly). * Disconnect all poles of the supply cable from the mains and secure them so they cannot be switched back on. * Before starting work, check that the system is not carrying live voltage.
K
Kyle WilliamsNov 22, 2025
What to do if LEDs indicate a malfunction in GESTRA Measuring Instruments?
- S
  Stacie YorkNov 22, 2025
  If the LEDs on your GESTRA Measuring Instruments are indicating a malfunction, consider these potential issues: * Check the electrode wires for interruptions or exposed measuring surfaces/electrodes, ensuring connections are secure at the electronic circuit board (terminal lugs 1-4). Also, check the water level and installation. * Inspect the electrode wires for short circuits, again checking connections at the electronic circuit board (terminal lugs 1-4). * If the value is below the set value of 0%, check the water level and installation. * If the value is above the set value of 100%, set a larger measuring range. * If the temperature in the terminal box exceeds 85°C, ensure the ambient temperature does not exceed 70°C. * For open or short circuits in wires to the resistanc...

Summary

Manual Overview and Safety

Scope of Delivery and Usage Guide

Details product contents, manual instructions, and illustrations.

Warnings, Terms, and Intended Use

Explains warning signals, specialist terms, and the equipment's intended purpose.

Safety Notes and Personnel Qualifications

Covers essential safety guidelines, required personnel skills, and liability.

Product Functionality and Technical Data

Controller Functions and Features

Describes the conductivity controller's core functions and possible combinations.

Visual Display and URB 55 Operation

Covers switching on, user interface, navigation, status display, and icons.

Technical Specifications

Provides detailed technical data for LRR 1-52/1-53 and URB 55 units.

Installation and Connection

Product Identification and Dimensions

Details name plates, marking, functional elements, and physical dimensions.

Installing the LRR and URB 55 Units

Guides on mounting the LRR controller and installing the URB 55 display unit.

Electrical Connection and Wiring

Covers safety notes, wiring diagrams, and electrical connection procedures.

Configuration and Operation

Equipment Settings and System Configuration

Explains modifying settings via code switches and system menus.

Operation, Navigation, and Status Indicators

Details user interface, navigation, colour coding, and status displays.

Configuring Specific Controller Functions

Covers switchpoints, valve control, trend logs, calibration, and parameters.

Troubleshooting and Maintenance

Alarms, Malfunctions, and Fault Codes

Describes alarms, URB 55 issues, LRR malfunctions, and fault code interpretation.

System Malfunction Actions and Maintenance

Provides steps for checking, taking units out of service, and troubleshooting.

Disposal and Compliance

Disposal and Equipment Returns

Outlines waste disposal regulations and procedures for returning equipment.

EU Declarations of Conformity

Lists European directives the products conform to.

Summary

Manual Overview and Safety

Scope of Delivery and Usage Guide

Details product contents, manual instructions, and illustrations.

Warnings, Terms, and Intended Use

Explains warning signals, specialist terms, and the equipment's intended purpose.

Safety Notes and Personnel Qualifications

Covers essential safety guidelines, required personnel skills, and liability.

Product Functionality and Technical Data

Controller Functions and Features

Describes the conductivity controller's core functions and possible combinations.

Visual Display and URB 55 Operation

Covers switching on, user interface, navigation, status display, and icons.

Technical Specifications

Provides detailed technical data for LRR 1-52/1-53 and URB 55 units.

Installation and Connection

Product Identification and Dimensions

Details name plates, marking, functional elements, and physical dimensions.

Installing the LRR and URB 55 Units

Guides on mounting the LRR controller and installing the URB 55 display unit.

Electrical Connection and Wiring

Covers safety notes, wiring diagrams, and electrical connection procedures.

Configuration and Operation

Equipment Settings and System Configuration

Explains modifying settings via code switches and system menus.

Operation, Navigation, and Status Indicators

Details user interface, navigation, colour coding, and status displays.

Configuring Specific Controller Functions

Covers switchpoints, valve control, trend logs, calibration, and parameters.

Troubleshooting and Maintenance

Alarms, Malfunctions, and Fault Codes

Describes alarms, URB 55 issues, LRR malfunctions, and fault code interpretation.

System Malfunction Actions and Maintenance

Provides steps for checking, taking units out of service, and troubleshooting.

Disposal and Compliance

Disposal and Equipment Returns

Outlines waste disposal regulations and procedures for returning equipment.

EU Declarations of Conformity

Lists European directives the products conform to.

GESTRA LRGT 17-1 Specifications

General

Model	LRGT 17-1
Operating Pressure	Up to PN 40
Material	Stainless Steel
Application	For conductive liquids
Pressure Range	0 - 40 bar
Temperature Range	0 - 220°C
Connection	Flange

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