Level Pro 700 Operating Manual

Operating Manual

Sensors

1. General information

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1.1 Information on the operating manual

This operating manual contains important information on proper usage of the device. Read this
operating manual carefully before installing and starting up the pressure measuring device.

Adhere to the safety notes and operating instructions which are given in the operating manual.
Additionally applicable regulations regarding occupational safety, accident prevention as well as
national installation standards and engineering rules must be compiled with.

This operating manual is copyrighted. The contents of this operating manual reflect the version
available at the time of printing. It has been issued to our best knowledge. However, errors may have
occurred. Levelpro is not liable for any incorrect statements and their effects.

1.2 Symbols used

DANGER! – dangerous situation, which may result in death or serious injuries
WARNING! – potentially dangerous situation, which may result in death or serious injuries
CAUTION! – potentially dangerous situation, which may result in minor injuries

CAUTION! – potentially dangerous situation, which may result in physical damage

 NOTE – tips and information to ensure a failure-free operation

1.3 Target group

WARNING! To avoid operator hazards and damages of the device, the following instructions

have to be worked out by qualified technical personnel.

1.4 Limitation of liability

-Technical modifications reserved-

By non-observance of the operating manual, inappropriate use, modification or damage, no
liability is assumed and warranty claims will be excluded.

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Fig. 1 manufacturing label

1.5 Intended use

− The probes have been developed for continuous level measurement. It is the operator’s
responsibility to check and verify the suitability of the device for the intended application. If
any doubts remain, please contact our sales department in order to ensure proper usage.
Levelpro is not liable for any incorrect selections and their effects!

− Permissible media are gases or liquids (no solids and frozen media), specified in the data
sheet. In addition it has to be ensure, that this medium is compatible with the media wetted
parts.

− The technical data listed in the current data sheet are engaging and must be complied with.

− If the data sheet is not available, please order or download it from our homepage.

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WARNING! – Danger through improper usage!

1.6 Package contents

Please verify that all listed parts are undamaged included in the delivery and check for consistency
specified in your order:

− probe

− mounting instructions

− with option SIL2 version:

Functional Safety Manual, Functional Safety Data Sheet, SIL Declaration of Conformity

2. Product Identification

The device can be identified by its manufacturing label. It provides the most important data. By
the ordering code the product can be clearly identified.

The manufacturing label must not be removed from the device!

3. Mechanical Installation

3.1 Mounting and safety instructions

WARNING! Install the device only when depressurized and currentless!
WARNING! This device may only be installed by qualified technical personnel who has read

and understood the operating manual!

Handle this h igh-sensitive electronic precision measuring device with care, both in packed and

unpacked condition!

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There are no modifications/changes to be made on the device.

Do not throw the package/device!
To avoid damaging the diaphragm, remove packaging and protective cap directly before

starting assembly. The delivered protective cap has to be stored

Place the protective cap on the pressure port again immediately after disassembling.
Handle the unprotected diaphragm very carefully – it is very sensitive and may be easily

damaged.

Do not use any force when installing the device to prevent damage of the device and the

plant!

When placing the device into operation or after maintenance work, the probe has to be

submerged slowly into the medium! A rough immersion into the medium can damage or
destroy the diaphragm.

If there is any danger of damage by lightning or overpressure when the device is installed

outdoor, we suggest putting a sufficiently dimensioned overpressure protection between the
supply or switch cabinet and the device.

3.2 Installation steps for probe

− Carefully remove the pressure measuring device from the package and dispose of the package
properly.

− Mount the device according to your demands.

 Usually, the probe has been delivered without mounting accessories. For different mounting

demands, Levelpro offers as accessories mounting clamps, terminal clamps and mounting
flanges.

3.3 Installation steps for flange version
(LMK 382 / LMK 382 H)

− Carefully remove the pressure measuring device from the package and dispose of the package

properly.

− Please ensure that the mounting thread is clean and free of damage.

− Check to ensure that the O-ring fits properly in t he groove.

− Screw in the mounting thread of the transmitter in the transmitter flange.

− Next, tighten it by an op en-end wrench, (approx… 25 Nm)

− Install the flange according to your demands.

 If a new transmitter flange is needed, it can be ordered from Levelpro.

3.4 Removing the protecting cap (if existing)

For the protection of the diaphragm, some of the probes have a plugged-on protection cap. If the
device shall be used in high-viscosity media such as sludge, a removal of the cap before start-up
is necessary. Thus, the sensor becomes flush and the medium will attain quickly to the diaphragm.

 If it is necessary for your application to remove the protection cap, this has to be done with

utmost care. To prevent a damage of the diaphragm, please follow these instructions.

Removal by hand

− Hold the probe in a way that the protection cap points upwards.

− Hold the probe with one hand on the sensor section (1).

− Remove the protection cap (2) with the other hand.

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