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Level Gauge
Series
instrumentación
para fluidos
LT / LTL
Instructions Manual
The following users manuals are attached: LT Series LTL Series
AMD Limit Switch
AMR Limit Switch
AMM Limit Switch
APR Limit Switch
C-MI-07 Rev.:2 English Version
AAR Limit Switch
APRV Limit Switch
ADF Limit Switch
LTE Limit Switch
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TECHNICAL DATA
• Mounting: Vertical, on the side of the tank.
• Fittings: EN 1092-1 DN-25 Flanges
1” BSP/NPT Threads
Others on demand:
• Liquid Density: 0.45 a 3 kg/l
• Liquid viscosity: maximum 1500 mPa.s
• Precision: ±3 mm
• Materials: EN 1.4404 (AISI-316L). On demand: PTFE, PVC, PP, PVDF
• Pressure: PN-16 (in EN 1.4404)
PN-10 (in PVC y PP)
On demand: PN-400
• Length: Maximum 6000 mm. On demand up to 15000 mm in EN1.4404
• Conforms with the Pressure Equipment Directive 97/23/EC.
This equipment is considered as being a pressure accessory and NOT a safety accessory
!
as defined in the 97/23/EC directive, Article 1, paragraph 2.1
.3.
0830
OPERATION
The variations of level are followed by the internal float that, by means of a magnetic field, acts on
the indicator.
RECEPTION
The LT/LTL series are supplied suitably packed for transport. They are supplied with the float
blocked in its bottom position by means of a stop introduced into the lower side coupling.
BEFORE MOUNTING ON THE TANK, THIS STOP MUST BE REMOVED.
INSTALLATION
Important: Check that the maximum working pressure is below the limit shown on the
identification label of the equipment. Check that the maximum working temperature of the
!
liquid is within the limits given in the following table.
MATERIALS
EN 1.4404 (AISI-316L) -20 ºC…...150 ºC
PVC 0 ºC…...45 ºC
PP -10 ºC…...90 ºC
PVDF -20 ºC…...135 ºC
PTFE -60 ºC…...150 ºC
LIQUID TEMPERATURE
RANGE
The working temperatures are given for an ambient temperature of 20ºC.
The fittings to the tank must be ALIGNED and PERPENDICULAR.
Flange bolts should be tightened progressively in a criss-cross manner to avoid creating tensions.
With threaded connections, they should be tightened progressively and together.
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For the LT series levels (with a glass tube), it is recommended to remove this tube before
mounting the level to the tank. Next, fill the glass tube. On ce t he level is f i tted to the tank, rein stal l
the glass tube to the level.
This process should be done using the following instructions:
INSTRUCTIONS FOR FILLING THE GLASS TUBE (fig. 1):
1. Remove the Allen screw (1).
2. Withdraw the glass tube from its support and remove the plug at the top (3).
3. Fill the glass tube (4) with the liquid supplied with the level.
4. Insert the plug (3) in the tube and maintain in a vertical position,
MOUNTING THE GLASS TUBE (fig. 1):
1. Check that the rubber seating (5) is in its position.
2. The bottom of the glass tube (4) should rest on the rubber seating (5).
3. Mount the spacer (2, rubber washer) in its position.
4. Assemble the glass tube in its position and screw the Allen screw (1) into the plug (3).
5. The Allen screw should not be very tight, it is sufficient to tighten until a slight
resistance is noted.
1
2
4
5
3
Figure 1
3
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LEVEL READING
For levels with a glass tube the value of the level is read on the scale at the height of the top of
the external float. For levels with indication by means of magnetic strips, the reading is taken
where the strips change from red to white.
MAINTENANCE
No specific maintenance is required.
WARRANTY
Tecfluid S.A. GUARANTEES ALL ITS PRODUCTS FOR A PERIOD OF 24 MONTHS, after
consignment, against all defects in materials and workmanship.
This warranty does not cover failures which can be imputed to misuse, use in an application different
to that specified in the order, the resu lt of service or modification by un-authorized perso ns, bad
handling or accident.
This warranty is limited to cover the repair or replacement defective parts which have not been
damaged by misuse.
This warranty is limited to the repair of the equipment and all further and eventually following
damages are not covered by this warranty.
Any consignment of equipment to our factory or distributor must be previously authorised. The
consignment should be done with the equipment well packed, clean of any liquids, grease or
hazardous materials. Tecfluid S.A. will not accept any responsibility for damage done during
transport.
Together with the equip ment, a note should be enclos ed indicating the failure observed, the name,
address and telephone number of the sender.
TECFLUID, S.A.
Narcís Monturiol, 33
E-08960 Sant Just Desvern
Tel. + 34 933 724 511 - Fax + 34 934 734 449
E-mail: tecfluid@tecfluid.com
Internet: www.tecfluid.com
The technical data in this pamphlet is subject to modification without notification, if the technical innovations in the product or
manufacturing processes so require.
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