Endress+Hauser LT5 Specifiche tecniche
Products Solutions Services
Brief Operating Instructions
Float level gauge LT5
Mechanical tank gauge for measuring liquid level
These Instructions are Brief Operating Instructions; they are
not a substitute for the Operating Instructions pertaining to
the device.
Detailed information about the device can be found in the
Operating Instructions and the other documentation:
Available for all device versions via:
• Internet: www.endress.com/deviceviewer
• Smart phone/tablet: Endress+Hauser Operations App
KA01676G/00/EN/01.23-00
71629416
2023-10-06
Float level gauge LT5
2 Endress+Hauser
Order code:
Ext. ord. cd.:
Ser. no.:
www.endress.com/deviceviewer Endress+Hauser
Operations App
XXXXXXXXXXXX
XXXXX-XXXXXX
XXX.XXXX.XX
Serial number
1.
3.
2.
A0023555
Float level gauge LT5 Table of contents
Endress+Hauser 3
Table of contents
1 Document information ............................................................ 4
1.1 Symbols used ......................................................................... 4
1.2 Documentation ........................................................................ 6
2 Basic safety instructions .......................................................... 7
2.1 Requirements for personnel .............................................................. 7
2.2 Designated use ........................................................................ 7
2.3 Workplace safety ...................................................................... 7
2.4 Operational safety ......................................................................8
2.5 Product safety ......................................................................... 8
3 Product description ............................................................... 8
3.1 Designated use ........................................................................ 8
3.2 Delivery examples ...................................................................... 9
4 Incoming acceptance and product identification ................................. 10
4.1 Incoming acceptance ................................................................... 10
4.2 Product identification .................................................................. 10
4.3 Manufacturer address .................................................................. 10
4.4 Storage and transport .................................................................. 10
5 Installation ...................................................................... 11
5.1 Measuring tape and wire lengths .......................................................... 11
5.2 Sealing materials for wetted liquid and wetted gas parts ......................................... 14
5.3 Material certificates ................................................................... 15
5.4 Guide wire installation ................................................................. 16
5.5 Measuring tape and measuring wire installation .............................................. 19
5.6 Liquid sealant for seal pot ............................................................... 35
6 Commissioning .................................................................. 41
6.1 Dial display .......................................................................... 41
6.2 Counter display ....................................................................... 43
6.3 Indicator calibration ................................................................... 45
6.4 Handling the gauge in water leak/airtightness tests and at gauge startup ............................ 53
Document information Float level gauge LT5
4 Endress+Hauser
1 Document information
1.1 Symbols used
1.1.1 Safety symbols
DANGER
This symbol alerts you to a dangerous situation. Failure to avoid this situation will result in
serious or fatal injury.
WARNING
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
serious or fatal injury.
CAUTION
This symbol alerts you to a dangerous situation. Failure to avoid this situation can result in
minor or medium injury.
NOTICE
This symbol contains information on procedures and other facts which do not result in
personal injury.
1.1.2 Electrical symbols
Alternating current
Direct current and alternating current
Direct current
Ground connection
A grounded terminal which, as far as the operator is concerned, is grounded via a grounding
system.
Protective earth (PE)
Ground terminals that must be connected to ground prior to establishing any other
connections.
The ground terminals are located on the interior and exterior of the device:
• Interior ground terminal: protective earth is connected to the mains supply.
• Exterior ground terminal: device is connected to the plant grounding system.
1.1.3 Tool symbols
Phillips head screwdriver
Flat blade screwdriver
Float level gauge LT5 Document information
Endress+Hauser 5
Torx screwdriver
Allen key
Open-ended wrench
1.1.4 Symbols for certain types of information and graphics
Permitted
Procedures, processes or actions that are permitted
Preferred
Procedures, processes or actions that are preferred
Forbidden
Procedures, processes or actions that are forbidden
Tip
Indicates additional information
Reference to documentation
Reference to graphic
Notice or individual step to be observed
1.
,
2.
,
3.
Series of steps
Result of a step
Visual inspection
Operation via operating tool
Write-protected parameter
1, 2, 3, ...
Item numbers
A, B, C, ...
Views
Safety instructions
Observe the safety instructions contained in the associated Operating Instructions
Temperature resistance of the connection cables
Specifies the minimum value of the temperature resistance of the connection cables
Document information Float level gauge LT5
6 Endress+Hauser
1.2 Documentation
The following documents can be accessed from the download area of the Endress+Hauser
website (www.endress.com/downloads).
For an overview of the enclosed relevant technical documentation, refer to the following:
W@M Device Viewer (www.endress.com/deviceviewer): Enter the serial number on the
nameplate.
1.2.1 Technical Information (TI)
Planning aid
This document contains all technical data related to the device, as well as an overview of
accessories and other products that can be ordered for this device.
1.2.2 Brief Operating Instructions (KA)
Guide that takes you quickly to the 1st measured value
The Brief Operating Instructions contain all the essential information from incoming
acceptance to initial commissioning.
1.2.3 Operating Instructions (BA)
Operating instructions contain all information required for all stages in the device life cycle
(from product identification, incoming acceptance, storage, mounting, connection, operation
and setting to troubleshooting, maintenance and disposal).
Float level gauge LT5 Basic safety instructions
Endress+Hauser 7
2 Basic safety instructions
2.1 Requirements for personnel
The personnel for installation, commissioning, diagnostics and maintenance must fulfill the
following requirements:
‣Be specialists who are trained and have a relevant qualification for this specific function
and task.
‣Be authorized by the plant owner-operator.
‣Be familiar with local/national regulations.
‣Before starting work, read and understand the instructions in the Operating Instructions
and supplementary documentation as well as the certificates (depending on the
application).
‣Follow instructions and comply with basic conditions.
The operating personnel must fulfill the following requirements:
‣Be instructed and authorized according to the requirements of the task by the facility's
owner-operator.
‣Follow the instructions in this manual.
2.2 Designated use
Application and measured materials
Depending on the version ordered, the device can also be used with potentially explosive,
flammable, poisonous or oxidizing materials.
Devices that are used in hazardous areas have corresponding labels on their nameplates.
To ensure that the device remains in proper condition for the operation time:
‣Only use the device in full compliance with the data on the nameplate and the general
conditions listed in the Operating Instructions and supplementary documentation.
‣Check the nameplate to verify if the device can be put to its intended use in hazardous
areas.
‣If the device is not operated at an atmospheric temperature, compliance with the relevant
basic conditions specified in the relevant device documentation is absolutely essential.
‣Protect the device permanently against corrosion from environmental influences.
‣Observe the limit values in the "Technical Information".
The manufacturer is not liable for damage caused by improper or non-designated use.
2.3 Workplace safety
For work on and with the device:
‣Wear the required personal protective equipment according to local/national regulations.
Product description Float level gauge LT5
8 Endress+Hauser
2.4 Operational safety
Risk of injury!
‣Operate the device in proper technical conditions and fail-safe conditions only.
‣The plant owner-operator is responsible for interference-free operation of the device.
Modifications to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers:
‣If modifications are nevertheless required, contact your Endress+Hauser Sales Center.
Repair
To ensure continued operational safety and reliability:
‣Carry out repairs on the device only if they are expressly permitted.
‣Observe local/national regulations pertaining to repair of an electrical device.
‣Use only original spare parts and accessories from Endress+Hauser.
Ex-area
Observe the following notes to eliminate the risk of danger to persons or the facility when the
device is used in Ex-areas (e.g. explosion protection, pressure equipment safety):
‣Check the model nameplate to ensure that the ordered device is explosion proof.
‣Observe the specifications in the separate supplementary documentation attached to these
Instructions.
2.5 Product safety
This device was designed in accordance with GEP (Good Engineering Practice) to meet state-
of-the-art safety requirements, has been tested and left the factory in a condition in which it
is safe to operate. It meets the general safety standards and legal requirements.
3 Product description
3.1 Designated use
Float level gauge LT5 is an important measuring instrument in the process industry. The
mechanical construction does not require a power supply and it is easy to install. Since it can
be used for high-precision liquid level measurement and remote indication detection, it is
ideal for the following operations:
• Inventory management
• Batch processing
• Management of a process tank
• Safe tank operation
Float level gauge LT5 Product description
Endress+Hauser 9
3.2 Delivery examples
The packaging method will vary depending on the order code, etc. For flange type, the sheave
elbow will be delivered in a separate packaging box.
1.
2.
3.
3.
4.
6
7
8
5
A0039945
1 Packaging
1 Gauge supporter
2 Anchor hook
3 Sheave elbow
4 Top anchor
5 Guide wire
6 Measuring tape
7 Gauge head
8 Float (below the gauge head)
Incoming acceptance and product identification Float level gauge LT5
10 Endress+Hauser
4 Incoming acceptance and product identification
4.1 Incoming acceptance
Upon receipt of the goods, check the following:
• Are the order codes on the delivery note and the product label identical?
• Are the goods undamaged?
• Do the nameplate data match the ordering information on the delivery note?
• If required (see nameplate): Are the Safety Instructions (XA) enclosed?
If one of these conditions is not satisfied, contact your Endress+Hauser Sales Center.
4.2 Product identification
The following options are available for identification of the device:
• Nameplate specifications
• Extended order code with breakdown of the device features on the delivery note
•W@M Device Viewer (www.endress.com/deviceviewer): Enter the serial number from the
nameplate; this will display all the information about the device.
4.3 Manufacturer address
Endress+Hauser Yamanashi Co., Ltd.
406-0846
862-1 Mitsukunugi, Sakaigawa-cho, Fuefuki-shi, Yamanashi
4.4 Storage and transport
4.4.1 Storage conditions
• Storage temperature: –20 to +70 °C (–4 to 158 °F)
• Store the device in its original packaging.
4.4.2 Transport
NOTICE
The housing may become damaged or dislodged.
Risk of injury
‣When transporting the device to the measuring point, either use the device's original
packaging or hold by the process connector.
‣Secure a hoisting device (such as a hoisting ring or a lifting eye bolt) to the process
connector, not to the housing. Pay attention to the device's center of gravity to prevent
unexpected tilting.
‣Comply with the safety precautions and transportation conditions for devices that weigh
18 kg (39.6 lbs) or more (IEC61010).
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