RusAutomation ULM-53 Series User manual

Ultrasonic level meters Ulm – 53
•For continuous level measurement of liquids
(even if polluted), mash and paste materials in
open or closed vessels, sumps, open channels,
etc.
•Variants of level meter with adjustment by two
buttons, or by magnetic pen
•Xiversionforusageinexplosiveareas
•State indication by two LEDs
•Current output (4 ... 20 mA), voltage output
(0 ... 10 V) or RS-485 Modbus output
•Wide choice of electric connection via connectors,
cable glands or protective conductor
•While used with horn adapter can be measured
also some difficult media (foamy levels, loose
materials, etc.)
• ULM–53_–01–_ Measuring range from 0.1 m to 1m, plastic PVDF transmitter and plastic body (PP+HDPE),
process connection with thread G ¾".
• ULM–53_–02–_ Measuring range from 0.2 m to 2 m, plastic PVDF transmitter and plastic body (PP+HDPE),
process connection with thread G 1".
•ULM–53_–06–_ Measuring range from 0.2 m to 6 m, plastic PVDF transmitter and plastic body (PP+HDPE),
process connection with thread G 1 ½".
•ULM–53_–10–_ Measuring range from 0.4 m to 10 m, plastic PVDF transmitter and plastic body (PP+HDPE),
process connection with thread G 2 ¼".
•ULM–53_–20–_ Measuring range from 0.5 m to 20 m, with plastic PVDF transmitter and plastic body (PP+HDPE),
aluminium alloy ange.
Features oF variants
The ULM® ultrasonic level meters are compact measurement devices containing an ultrasonic transmitter and an electronic
module. Using an transmitter, level meters transmit the series of ultrasonic pulses that spread towards the level surface. The
transmitter recuperates reected acoustic waves that are subsequently processed in the electronic module. Based on the period
during which the individual pulses spread towards the level and back, this period is averaged by the electronics that performs tem-
perature compensation and subsequently a conversion to an output current 4 -20 mA, voltage 0 - 10 V or output RS-485 Modbus.
The ULM®ultrasonic level meters are suitable for continuous non-contact level measurement of liquids (water solutions, sewer-
age water, etc.), mash and paste materials (sediments, sticks, resins etc.) in closed or open vessels, sumps, reservoirs and open
channels. In case the level of bulk-solid materials is measured, the measurement range is reduced.
All setting-up is done using two buttons positioned in the upper part of the sensor. The level meter is equipped with optical state
indication (STATE) and with a setting-up process (MENU). The level meter can output current or voltage signals. They are manu-
factured in model versions for non-explosive areas (N) and explosive areas (Xi).

Dimensional Drawings
ULM – 53_– 01 ULM – 53_– 02 ULM – 53_– 06
ULM – 53_– 20
ground
terminal
Al alloy
ULM – 53_– 10
Variant "G" with connector ISO
Variant "H" with outlet
for protective conductor
Variant "C" with connector M12
Variant "B" with cable outlet PG11

technical speciFications
Measuring range 1)
ULM–53_–01–_
ULM–53_–02–_
ULM–53_–06–_
ULM–53_–10–_
ULM–53_–20–_
0.1 ... 1 m
0.2 ... 2 m
0.2 ... 6 m
0.4 ... 10 m
0.5 ... 20 m
Supply voltage ULM–53N–_ _–_
ULM–53Xi–_ _ –I
18 ... 36 V DC
18 ... 30 V DC
Current supply
ULM–53N(Xi)–_ _ –I
ULM–53N–_ _ –U
ULM–53N–_ _ –M
4 ... 20 mA / max. 22 mA
Max. 12 mA
Max. 20 mA
Current output ULM–53_–_ _ –I
Voltage output ULM–53N–_ _ –U
Modbus output ULM–53N–_ _ –M
4 ... 20 mA (limit values 3.9 ... 20.5 mA)
0 ... 10 V (limit values 0 ... 10.2 V)
Modbus RTU protocol
Resolution < 1mm
Accuracy
(within the total range)
ULM–53_–01 in area 0,1–0,2 m / 0,2–1,0 m
ULM–53_–02; –06
ULM–53_–10; –20
0,3 % / 0,2 %
0,15 %
0,2 %
Temperature error Max. 0,04% / K
Beamwidth (-3 dB)
ULM–53_–01–_ ; 02–_ ; 10–_
ULM–53_–06–_
ULM–53_–20–_
10°
14°
12°
Ambient temperature range ULM–53_–01–_ ; 02–_ ; 06–_
ULM–53_–10–_ ; 20–_
-30 ... +70°C
-30 ... +60°C
Measuring period
ULM–53_–01–_; 02–_
ULM–53_–06–_; 10–_
ULM–53_–20–_
ULM–53_–_ _–M
0,5 s
1,2 s
5,0 s
adjustable via Modbus RTU
Averaging (can be modied according to agreement) ULM–53_ – _ _–_
ULM–53_–__–M
4 measurement
adjustable via Modbus RTU
Short time temperature stress resistance +90°C / 1 hod.
Max. operation overpressure (on transmission surface) 0,1 MPa
Max. internal values 2) (for the Xi version only) Ui=30 V DC; Ii=132 mA; Pi=0,99W; Ci=370nF; Li=0,9mH
Failure indication
echo failure – basic mode
echo failure – inverse mode
level in dead zone – basic mode
level in dead zone – inverse mode
3,75 mA (0 V)
22 mA (10,5 V)
22 mA (10,5 V)
3,75 mA (0 V)
Protection class IP67
Recommended cable PVC 2 x 0,75 mm2 (3 x 0,5 mm2)
Maximal current output load resistance at U = 24 V DC
at U = 22 V DC
at U = 20 V DC
Rmax = 270 Ω
Rmax =180 Ω
Rmax = 90 Ω
Minimal voltage output load resistance Rmin > 1 kΩ
Delay between supply
power rise time and rst
measurement
ULM–53_–01–_ ; 02–_ ; 06–_
ULM–53_–10–_; 20–_
5 s
9 s
Process connection
ULM–53_–01–_
ULM–53_–02–_
ULM–53_–06–_
ULM–53_–10–_
ULM–53_–20–_
thread G ¾‘‘
thread G 1‘‘
thread G 1½‘‘
thread G 2¼‘‘
aluminium alloy ange
Weight
ULM–53_–01–_
ULM–53_–02–_
ULM–53_–06–_
ULM–53_–10–_
ULM–53_–20–_
0,20 kg
0,20 kg
0,25 kg
0,65 kg
2,80 kg
1) In case the level of bulk-solid materials is measured, the measurement range is reduced.
2) Allowed pressure range in the zone 0: 80 ... 110 kPa.

mounting recommenDation
Recommended installation Possible installation through the neck
Level meter installation outside the inuence of lling circulation
Installation distance from the tank wall
c - Maximum reach
of the level meter
d - Minimum distance
from tank wall
a - neck height
b - neck width
m - dead zone
installation
Level meter is installed into the upper lid of the tank (vessel), using a xing nut or a ange.
If installed in an open channel (sumps, reservoirs, etc.), install the level meter as closest as you can to the maximum level expected.
The front of the level meter must run in parallel to the measured level.
Emitted acoustic signal must not be affected by near objects (stiffeners, ladders, mixers, unevenness, etc.), stream of lling, air
ow, etc.
Foam on the level absorbs the acoustic wave reection which might cause malfunction of the level meter. If possible select the
location where the foaming is as low as possible. Protect the level meter against direct sunlight.
In the case of uncertainty we recommend to consult the application with the producer.
ULM–53–01; 02; 06 a < 3 b
b > 100 mm
ULM–53–10 a < 1,5 b
b > 100 mm
ULM–53–20 a < 1,5 b
b > 150 mm
area classiFication (according to EN 60079-10 and EN 60079-14)
ULM–53N–_ _–_ Performance for non-explosive areas
ULM–53Xi–01–I
ULM–53Xi–02–I
ULM–53Xi–06–I
Explosive proof – suitable for explosive areas (combustible gases or vapours)
II 1/2G Ex ia IIB T5 Ga/Gb with isolating repeater (IRU–420)
the whole level meter – zone 1, front head part – zone 0
ULM–53Xi–10–I
Explosive proof – suitable for explosive areas (combustible gases or vapours)
II 1/2G Ex ia IIA T5 Ga/Gb with isolating repeater (IRU–420)
the whole level meter – zone 1, front head part – zone 0
ULM–53Xi–20–I
Explosive proof – suitable for explosive areas (combustible gases or vapours)
II 2G Ex ia IIA T5 Gb with isolating repeater (IRU–420)
the whole level meter – zone 1
ULM–53– 01; 02; 10 d > 1/12 c
(min. 200 mm)
ULM–53–06 d > 1/8 c
(min. 200 mm)
ULM–53–20 d > 1/10 c
(min. 200 mm)

electric connection
Connection diagram of the ULM level meter (variant –U)
and inside view of the connector
BK – black WH – white
BU – blue YE – yellow
BN – brown GN – green
legend:
0V (bu)
+U (bn)
0V (bu)
+U (bn)
Uout (bk)
Connection through ISO connector
The ULM level meter with a G type cable gland are con-
nected to processing (display) units by means of a cable
with an outer diameter of 6 to 8 mm (recommended wire
cross-section 0.5 to 0.75 mm2), via a detachable ISO
connector with inner screw terminals, which is part of the
delivery. The connection diagram and the inner view of the
connector are shown in Figures on the right. Non-detach-
able connector IP67 with PVC cable 5 m long can be sup-
plied as an extra option.
Connection diagram of the ULM level meter (variant –I)
and inside view of the connector
Connection through M12 connector
The ULM level meter with a C type cable gland are con-
nected to processing (display) units by means of a cable
with an outer diameter of 4 to 6 mm (recommended wire
cross-section 0.5 to 0.75 mm2), via a connector socket
with a moulded cable (2 or 5 m long) or via a detachable
connector socket without a cable (see accessories). In this
case connect the cable to the inner socket pins under g-
ures on the right.
1
3
4
0V
+U
BN ()1
BU ()2
mA +U
0V
V
+U
0V
U
Uout
V
+U
0V
U
Uout
mA +U
0V
+U
0V
BN (1)
BU (2)
BK (3)
+U
0V
BN (1)
BU (3)
BK (4)
BN ()1
BU (3)
BN ()1
BU ()2
BK (3)
BN ()1
BU (3)
BK (4)
BN ()1
BU ()2
mA +U
0V
mA +U
0V
BN ()1
BU (3)
1
3
4
0 V
+U
Uout
BN ()1
BU ()2
mA +U
0V
V
+U
0V
U
Uout
V
+U
0V
U
Uout
mA +U
0V
+U
0V
BN (1)
BU (2)
BK (3)
+U
0V
BN (1)
BU (3)
BK (4)
BN ()1
BU (3)
BN ()1
BU ()2
BK (3)
BN ()1
BU (3)
BK (4)
BN ()1
BU ()2
mA +U
0V
mA +U
0V
BN ()1
BU (3)
Connection diagram of the ULM level meter (variant –I)
and inside view of the connector
Connection diagram of the ULM level meter (variant –U)
and inside view of the connector
View of the connector ISO
View of the connector M12
Connection via PG 11 gland
or gland for protective hoses
The ULM level meter or ULS sensor with a B or H type cable
gland are connected to processing (display) units by means
of a xed PVC cable 5 m long. PG 11 (B) or plastic bushings
with a thread for protective hoses (H) can be used as a cable
gland. Connection diagrams are shown in Figures on the
right.
Connection diagram of the ULM level meter (variant –I)
and inside view of the connector
Connection diagram of the ULM level meter (variant –U)
and inside view of the connector
Connection diagram of the level meter with an
RS–485 output (variant –M)
View of the cable
gland PG11
View of the cable gland for
protective hose

set-up elements
Device type with setting using buttons
The measuring range is setup by means of two buttons "DOWN" and
"UP".The "DOWN" button is used to enter to the setting mode (setting
the 4 mA or 0 V limit) and to decrease the output current or voltage.
The "UP" button as an opposite function (setting the 20 mA or 10 V limit
and increasing the output current or voltage). Values are conrmed
by simultaneous pressing of both buttons for about 1 sec. The setting
process is indicated by yellow "STATE" LED indicator.
For detailed information please read at the instructions manual.
Key parts of the measuring device (version with buttons)
Wiring operations shall only be carried out without voltage!
Taking into account the potential occurrence of electrostatic discharge on non-conducting parts of the level meter, it is necessary to ground
the ange of level meters ULM–53Xi–20–F, located in an explosive atmosphere, using a ground terminal!
The supply source should be preferably designed as a stabilized source of safe voltage 18 V
to 36 V DC (max. 30 V DC for version Xi), which is part of the downstream processing or display system.
In case of strong ambient electromagnetic disturbance, parallel run of the input cable with the power line or its length exceeding 30m, we recommend
using a shielded cable.
It is also necessary to design and take measures to reduce the effects of static electricity to a safe level in the wiring.
Installation in explosive atmospheres needs to be carried out in compliance with ČSN EN 60079-14 (Electrical installations for explosive
gaseous atmospheres – Part 14: Electrical installations in dangerous areas other than mining) and possibly also in compliance with other
standards relating to the area concerned.
DOWN button
UP button
LED indicator “STATE”
LED indicator “RUN”
connector
Ultrasonic transmitter
locking screw
Device type with setting using a magnetic pen
The measuring range is setup by touching of the magnetic pen to
sensitive spots "EMPTY" and "FULL" . The "EMPTY" spot is used to
enter to the setting mode (setting the 4 mA or 0 V limit) and to decrease
the output current or voltage. The "FULL" spot as an opposite func-
tion (setting the 20 mA or 10 V limit and increasing the output current
or voltage). Values are conrmed by touching of the magnetic pen to
the sensitive spot for about 3 sec. The setting process is indicated by
yellow "STATE" LED indicator.
For detailed information please read at the instructions manual.
EMPTY sensitive area
FULL sensitive area
LED indicator “STATE”
LED indicator “RUN”
connector
Ultrasonic transmitter
locking screw
Key parts of the measuring device
(version with Hall probes)
LED indicator Colour Function
"RUN" green
short ashing (repeated depending on the measurement interval approx. 1 ... 2 s) - correct function, receipt of signal (echo)
reected from the measured surface
fast ashing – the measured surface is in the dead zone of the level meter or the ultrasound transducer is dirty
off – the level meter is not capable of receiving the echo. Incorrect installation or malfunction
"STATE" orange
ULM-53
slow ashing – 4 mA (0 V) threshold setting indication
fast ashing – 20mA (10 V) threshold setting indication
3 short ashes – setting conrmation
ULM-53 variant "M" with Modbus communication
fast ashing – communication under way on line RS-485
status inDication

orDer coDe
correct speciFication examples
accessories
standard
(included in device price)
optional
(for a extra charge)
• 1x seal (for UL_–53_– 01; 02; 06, 10)
• 1x connector with IP67 coverage (for versions with
an ISO connector)
• 1x magnetic pen MP–8 (for device type adjusted
with a magnetic pen)
• free-to-download programme Basic Scada Level
(for the Modbus version)
• stainless steel or plastic fastening nuts G ¾”, G1", G1 ½" and
G2 ¼
• stainless steel or plastic lugs G ¾”, G1“, G1 ½” and G2 ¼
•horn adapter ST–G1 (thread G1"), ST–G1,5 and ST–G2,25
• socket ELWIKA 4012 K PG7
• connector with IP67 coverage (type GAN-DADE 7A) with 5m
cable
(for current output and ISO type connector)
• connector with IP67 coverage (type GAN-DAEE 7A) with 5m
cable
(for voltage output and ISO type connector)
•converter URC-485 (for the Modbus version)
ULM–53N–02–G–I–G–T ULM–53N–20–F–U–H–M
ULM–53Xi–06–G–I–B–M ULM–53N–10–G–M–C–L
range oF application
Thanks to the proximity principle employed, the devices are suitable for continuous or limit measurement of the level of liquids,
waste water, sludge, suspensions, adhesives, resins in various open and closed vessels, sumps, open channels and drains.
Applicability for measuring the surface level of loose materials is limited, the range of measurement is shorter there.
Performance:
Maximum range:01 – 0,10 ... 1 m
02 – 0,20 ... 2 m
06 – 0,20 ... 6 m
10 – 0,4 ... 10 m
20 – 0,5 ... 20 m
N– non-explosive atmosphere
Xi – explosive atmosphere
ULM –
Output type: I – current output (4 ... 20 mA)
U – voltage output (0 ... 10 V)
M – RS-485 line with Modbus RTU communication
–––
Process connection:G– pipe thread
F– ange
Connection method: G – ISO connector
C – M12 connector
B – short cable gland PG11
H – cable gland for protective hose
–
Control units: T – setting using buttons
M – setting using a magnetic pen (MP8)
L – no setting controls and LED
53
––cable (cable length in m) – only for variants with connection type "B" and "H"
adjustable range (in dm) – only variants without setting controls " L"
with output type "I" and "U":
0005 ... 0020 – 0,5 ... 2 m (variant „02“)
0008 ... 0050 – 0,8 ... 5 m (variant „06“)
0010 ... 0090 – 1,0 ... 9 m (variant „10“)
0020 ... 0200 – 2,0 ... 20 m (variant „20“)

protection, saFety, compatibility anD explosion-prooFDesign
The ULM-53 level meter is equipped with protection against reverse polarity of the supply voltage and against short voltage
surges and with protection against current overload at the output.
Protection against dangerous contact is provided by low safe voltage under EN 33 2000-4-41.
Electromagnetic compatibility complies with EN 55011/B, EN 61326-1
and EN 61000-4-2 to 6.
The explosion-proof design of types ULM–53Xi is provided in conformity to the standards: EN 60079-0 : 2007; EN 60079-11 :
2007 and EN 60079-26 : 2007.
Explosion-proof design is certied by FTZÚ–AO 210 Ostrava–Radvanice, Report No.: FTZÚ 09 ATEX 0119X.
A declaration of conformity has been issued for this device in accordance with Act No. 22/1997 Coll., as amended. The sup-
plied electrical device conforms to the applicable government regulations concerning safety and electromagnetic compatibility.
materials
sensor part type variant standard material
Case all plastic PP
Electro-acoustic transducer all plastic PVDF
Flange ULM-53_-20 aluminium with surface nish (powder coating)
Cable gland all plastic PA
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[email protected]; русавтоматизация.рф; www.rusautomation.ru