Level instruments
Continuous level measurement - Ultrasonic controllers
SITRANS LU01 and LU02
■ Overview
The SITRANS LU01 is an ultrasonic long-range level controller
for liquids and solids in a single vessel up to 60 m (200 ft).
Handheld programmer shown is an accessory and must be
ordered separately.
■ Benefits
• Single point, long-range level monitoring
• Easy to install; easy to program using removable infrared
keypad (optional)
• Compatible with all Echomax® transducers
• Backlit LCD display with reading in standard engineering units
• Automatic level-to-volume conversion for standard or custom
tank shapes
• Dolphin Plus and SmartLinx compatible
• High/low alarms
■ Application
The system consists of a SITRANS LU01 monitor linked to a noncontacting ultrasonic transducer that can be mounted up to
365 m (1200 ft) away. The SITRANS LU01 will measure distance,
level or volume, and it features patented Sonic Intelligence®
echo processing software for superior reliability.
Readings are displayed in user-selectable linear engineering
units on the backlit LCD.
An on-board communications port automatically configures for
RS-232, RS-485 or bi-polar current loop. The SITRANS LU01 will
connect to a DCS or PLC using Siemens SmartLinx® interface
modules, giving you remote 2-way communication and full parameter access. Modules for popular industrial buses can be
factory installed or added later to meet changing needs. No external gateway is required, reducing hardware and cabling
costs.
• Key Applications: chemical storage, liquid storage, bulk solids storage (gravel, flour bins, grains, cereals), plastic pellets
■ Overview
The SITRANS LU02 is a dual point ultrasonic long-range level
controller for liquids and solids in one or two vessels up
to 60 m (200 ft).
Handheld programmer shown is an accessory and must be ordered separately.
■ Benefits
• Dual point, long-range level monitoring
• Easy to install; easy to program using removable infrared
keypad (optional)
• Compatible with all Echomax® transducers
• Backlit LCD display with reading in standard engineering units
• Automatic level-to-volume conversion for standard or custom
tank shapes
• Dolphin Plus and SmartLinx compatible
• High/low alarms
■ Application
SITRANS LU02 will measure liquids, solids or a combination of
both in one or two vessels of different sizes, shapes and configurations up to 60 m (200 ft).
The system uses ultrasonic technology to measure level, space,
distance, volume or average/differential. It features patented
Sonic Intelligence® echo processing software for superior reliability. Transducers can be mounted up to 365 m (1200 ft) from
the monitor.
Readings are displayed in user-selectable linear engineering
units on the backlit LCD.
It features an onboard communications port that automatically
configures for RS-232, RS-485 or bi-polar current loop. It will
connect to a DCS or PLC using Siemens SmartLinx® interface
modules, giving you remote 2-way communication and full parameter access. Modules for popular industrial buses can be
factory installed or added later to meet changing needs. No external gateway is required, reducing hardware and cabling
costs.
• Key Applications: chemical storage, liquid storage, bulk solids storage (gravel, flour bins, grains, cereals), plastic pellets,
tripper car
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Level instruments
Continuous level measurement - Ultrasonic controllers
SITRANS LU01 and LU02
■ Technical specifications
Mode of operation
Power supply
• Measuring principle
Ultrasonic level measurement
• Measuring range
0.3 to 60 m (1 to 200 ft)
• Measuring points
SITRANS LU01: Max. one point;
SITRANS LU02 Max. two points
AC model
100/115/200/230 V AC  15%,
50/60 Hz, 31 VA
DC model
18 to 30 V DC, 25 W
Displays and controls
51 x 127 mm (2 x 5") graphics
LCD with backlighting
• Memory
EEPROM (non-volatile), no
backup battery required
• Programming
Using removable programmer
(ordered separately) or
Dolphin Plus (option)
Certificates and approvals
CE, CSAUS/C , FM, ATEX II 3D
Lloyd's register of Shipping
(Categories ENV1, ENV2, ENV3
and ENV5)
Output signal
• Ultrasonic transducer
Echomax series, ST-H transducers
• Relays
4 SPDT Form C relays, rated at
5 A at 250 V AC, resistive load
• mA output
0/4 to 20 mA, optically isolated
- Max. load
750 , isolated, 30 V
- Resolution
0.1 % of range
- Outputs
SITRANS LU01:
Max. one mA output
SITRANS LU02:
Max. two mA outputs
Accuracy
5
• Error in measurement
0.25% of range or 6 mm (0.24"),
whichever is greater
• Resolution
0.1% of measuring range or 2 mm
(0.08"), whichever is greater
• Temperature compensation
-50 to +150 ºC (-58 to +302 ºF)
• Integral temperature sensor
• External TS-3 temperature
sensor (optional)
• Programmable fixed
temperature
Rated operating conditions
Ambient conditions
Ambient temperature for enclosure
-20 to +50 ºC (-4 to +122 ºF)
Design
Weight
2.7 kg (6 lbs)
Material (enclosure)
Polycarbonate
Degree of protection (wall mount)
IP65
Electrical connection
• Ultrasonic transducer cable exten- RG62-A/U coaxial cable with low
sion
capacitance
• mA output signal
2-core copper conductor, twisted,
shielded, 0.5 to 0.75 mm²
(22 to 18 AWG), Belden® 8760 or
equivalent is acceptable
• Electrical connection and relay
connection
Copper conductor according to
local requirements,
rated 250 V
5A
• Synchronization
Up to 16 LU01/LU02 units can be
synchronized together
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Options
• External temperature sensor
TS-3
• Communications
• SmartLinx: protocol-specific
modules as interface for popular
industrial fieldbus systems
• Dolphin Plus: Siemens
Windows®-compatible interface
and ComVerter link (infrared)
Level instruments
Continuous level measurement - Ultrasonic controllers
SITRANS LU01 and LU02
Selection and Ordering data
SITRANS LU01/LU02
Single or dual point ultrasonic long-range level
monitoring system for liquids and solids, and
ranges up to 60 m (200 ft).
Number of measuring points
LU01 version, 1 point
LU02 version, 2 points
Input voltage
100/115/200/230 V AC, voltage selector switch
18 to 30 V DC
Feature software
Standard
Order No.
777 77 - 77
SITRANS LU01/LU02
Single or dual point ultrasonic long-range level
monitoring system for liquids and solids, and
ranges up to 60 m (200 ft).
1
2
Operating Instructions
SITRANS LU01, English
SITRANS LU01, French
SITRANS LU01, German
A
B
SmartLinx
0
1
Other Operating Instructions
SmartLinx Allen-Bradley Remote I/O, English
SmartLinx PROFIBUS DP, English
SmartLinx PROFIBUS DP, German
2
3
RTU module
Enclosure
Wall mount
Wall mount, drilled, 6 x M20x1.5
Approvals
CE, CSAUS/C, FM1)
CE2)
ATEX II 3D1)
Further designs
Stainless steel tag [69 x 50 mm (2.71 x 1.97")]:
Measuring-point number/identification
(max. 16 characters) specify in plain text
A
B
C
Order code
Y15
C) 7ML1998-5BD02
C) 7ML1998-5BD12
C) 7ML1998-5BD32
C) 7ML1998-1AP03
C) 7ML1998-1AQ03
C) 7ML1998-1AQ33
C) 7ML1998-1AQ12
SmartLinx PROFIBUS DP, French
C) 7ML1998-1BF01
SmartLinx Modbus, English
C) 7ML1998-1BF31
SmartLinx Modbus, German
Note: The appropriate SmartLinx Operating Instructions should be ordered as a seperate line on the
order.
1
3
Please add "-Z" to Order No. and specify Order
code(s).
777 77 - 77
This device is shipped with the Siemens Milltronics
manual CD containing the complete ATEX Quick
Start and Operating Instructions library.
1
Data communications
No module (SmartLinx ready)
SmartLinx Allen-Bradley® Remote
I/O module
SmartLinx PROFIBUS DP module
C) 7 M L 5 0 0 4 -
C) 7ML1998-5BE02
C) 7ML1998-5BE12
C) 7ML1998-5BE32
SITRANS LU02, English
SITRANS LU02, French
SITRANS LU02, German
Note: The Operating Instructions should be
ordered as a separate line item.
A
Application software
Standard
Modbus®
Order No.
Selection and Ordering data
C) 7 M L 5 0 0 4 -
Accessories
Handheld programmer
Tag, stainless steel, 12 x 45 mm (0.47 x 1.77"),
one text line, suitable for enclosures
M20 cable gland kit (6 M20 cable glands,
6 M20 nuts, 3 stop plugs)
TS-3 Temperature Sensor see TS-3 on page 5/186
Spare parts
Card, LU01 mother main, comm ready
Card, LU02 mother main, comm ready
Card, LU02 daughter, comm ready
Card, LU01 daughter, comm ready
Card, display
See SmartLinx product page 5/301 for more
information.
1)
7ML1830-2AN
7ML1930-1AC
7ML1830-1GM
C) 7ML1830-1KX
C) 7ML1830-1MA
C) 7ML1830-1LP
C) 7ML1830-1LN
7ML1830-1LQ
Available with enclosure option 1 only
Available with enclosure option 3 only
2)
C) Subject to export regulations AL: N, ECCN: EAR99
®Modbus
is a registered trademark of Schneider Electric.
®
Allen-Bradley is a registered trademark of Rockwell Automation.
TM
DeviceNet is a trademark of Open DeviceNet Vendor Association (ODVA).
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Level instruments
Continuous level measurement - Ultrasonic controllers
SITRANS LU01 and LU02
■ Dimensional drawings
267 mm
(10.5”)
%
209 mm
(8.2”)
1
2
3
106 mm
(4.2”)
92 mm
(3.6”)
285 mm
(11.2”)
100
%
209 mm
(8.2”)
4
0
11
22
33
44
55
66
77
88
99
00
mA
mA
172 mm
(6.8”)
C
C
PP
172 mm
(6.8”)
PPX X X
%%
Suitable location for conduit entrances.
Use water tight conduit hubs to maintain
enclosure rating.
Siemens FI 01 · 2010
2
3
4
0
11
22
33
44
55
66
77
88
99
00
PP
PPX X X
C
C
%%
SITRANS LU 02
Mounting hole 4.3 mm
(0.17”) diameter
access under lid
(4 places)
Dimensional drawings for SITRANS LU01 (left) and SITRANS LU02 (right)
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1
100
mA
mA
SITRANS LU 01
5
267 mm
(10.5”)
106 mm
(4.2”)
92 mm
(3.6”)
285 mm
(11.2”)
Suitable location for conduit entrances.
Use water tight conduit hubs to maintain
enclosure rating.
Mounting hole 4.3 mm
(0.17”) diameter
access under lid
(4 places)
Level instruments
Continuous level measurement - Ultrasonic controllers
SITRANS LU01 and LU02
■ Schematics
5
SITRANS LU01 connections
SITRANS LU02 connections
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