Dinel ULM-53 series User manual

Read carefully the instructions published in this manual before the rst use of the level meter. Keep
the manual at a safe place. The manufacturer reserves the right to implement changes without prior notice.
instruction manual
průmyslová elektronika
Ultrasonic level meters Ulm – 53

CONTENT
1. Safety .........................................................................................................................................4
2. Packing, transportation and storage...........................................................................................4
3. Measuring principle ....................................................................................................................5
4. Range of application...................................................................................................................5
5. Features of variants....................................................................................................................5
6. Dimensional drawings ................................................................................................................6
7. Installation instructions ...............................................................................................................7
8. Electrical connection...................................................................................................................10
9. Set-up elements .........................................................................................................................11
10. Status and failure signalization.................................................................................................11
11. Operational modes ..................................................................................................................12
12. Setting up .................................................................................................................................12
12.1. Basic mode .....................................................................................................................12
12.2. Inverse mode ...................................................................................................................13
13. Order code................................................................................................................................14
14. Accessories ..............................................................................................................................14
15. Safety, protection, compatibility and explosion proof ...............................................................14
16. Use, manipulation and maintenance ........................................................................................15
17. General conditions and warranty..............................................................................................15
18. Marking of labels ......................................................................................................................15
19. Specications ...........................................................................................................................17

ULM–53 © Dinel, s.r.o.
4
UsEd symbOls
To ensure maximum safety of control processes, we have dened the following safety instructions
and information. Each instruction is labeled with the appropriate pictogram.
Alert, warning, danger
This symbol informs you about particularly important instructions for installation and op-
eration of equipment or dangerous situations that may occur during the installation and
operation. Not observing these instructions may cause disturbance, damage or destruction
of equipment or may cause injury
Information
This symbol indicates particularly important characteristics of the device.
All operations described in this instruction manual have to be carried out by trained
personnel or by an accredited person only. Installation, commissioning, operation and
maintenance of the capacitive level sensors has to be carried out in accordance with this
instruction manual; the provisions of regulations in force regarding the installation of
electrical equipment have to be adhered to.
Improper use, installation or set-up of the sensor can lead to crashes in the application,
(overlling of the tank or damage of system components).
The manufacturer is not responsible for improper use, loss of work caused by either
direct or indirect damage, and for expenses incurred at the time of installation or during
the period of use of the level sensors.
1.
safETy
2.
PaCkiNg, TraNsPOrTaTiON aNd sTOragE
Equipment ULM–53 is packed in a cardboard wrap and the whole consignment is placed in a card-
board box. The cardboard box is suitably lled to prevent mechanical damage during transport. Let
the device packed up till the use to prevent possible damage.
Transport to the customer is realized by forwarding company. Upon receipt, please check whether
the shipment is complete and corresponds to the extent of the order, or whether during the transport
did not occurred the damage of the packaging or the equipment. The device apparently damaged
during transport do not use and contact the manufacturer to resolve the situation.
If the device is transported further, then only wrapped in the original packaging and protected
against shocks and weather. Store the device in its original packaging in a dry place, sheltered from
the weather, with humidity up to 85% without the effects of chemically active substances. Storage
temperature range is from -20 °C to +60 °C.
Level meters variants ULM–53_–02, 06, 10 are tted with protective caps at the ultrasonic
transducer to prevent damage. Before commissioning, remove the caps!

5
© Dinel, s.r.o. ULM–53
3.
mEasUriNg PriNCiPlE
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 ultra-
sonic 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 electron-
ics that performs temperature compensation and subsequently a conversion to an output current
(voltage).
4.
raNgE Of aPPliCaTiON
For continuous non-contact level measurement of liquids (water solutions, sewerage water, etc.),
mash and paste materials (sediments, sticks, resins etc.) in closed or open vessels, sumps, reser-
voirs 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 manufactured in model versions for non-
explosive areas (N) and explosive areas (Xi).
ULM–53_–02–_ measuring range from 0.25 m to 2 m, plastic PVDF (Polyvinylidene
uoride) transmitter and plastic body, process connection with thread
G 1".
ULM–53_–06–_ measuring range from 0.25 m to 6 m, plastic PVDF transmitter and
plastic body, process connection with thread G 1½".
ULM–53_–10–_ measuring range from 0.5 m to 10 m, plastic PVDF transmitter and
plastic body, aluminium alloy –“Xi” version or PP (Polypropylene) – “N”
version ange.
ULM–53_–20–_ measuring range from 0.5 m to 20 m, with plastic PVDF transmitter
and plastic body (PP+HDPE), aluminium alloy ange.
5.
fEaTUrEs Of variaNTs

ULM–53 © Dinel, s.r.o.
6
6.
dimENsiONal drawiNgs
ULM–53_–02–_ ULM–53_–06–_
ULM–53N–10–_
ULM–53_–20–_
ULM–53Xi–10–I
Al alloy
Ground
terminal
PP, DN60
Al alloy, DN60
Ground
terminal

7
© Dinel, s.r.o. ULM–53
Fig. 2: Level meter dead zone
a) Install the level meter in a vertical position into the upper lid of the tank (vessel) or reservoir
using a lug, a fastening nut or a ange in such a way that the ULM axis is perpendicular to the
level of the measured liquid (Fig. 1).
b) Minimum dimension parameters when installing into
a lid or a ceiling of a tank are listed in Fig. 3.
c) When installing in an open channel (reservoir, drain
and the like), install the level meter onto a console to
the expected maximum level as close as possible.
d) In compliance with the measurement principle, no
signals reected in the area directly below the level
meter (the so-called dead zone) can be evaluated.
The dead zone (Fig. 2) determines the minimum
distance possible between the level meter and the
highest surface level. Medium minimum distance
parameters are listed in chapter on „Technical
specications“.
e) It is necessary to install the level meter in such a way
that the bin level does not interfere with the dead
zone when lled up to the maximum. If measured
level interferes with the dead zone, the level meter
will not work properly.
Fig. 1: Recommended installation
in the tank
Fig. 4: Possible installation of the installation neck
a – Neck height
b – Neck width
m – Dead zone
Fig. 3: Installation distance from the tank wall
d – Distance from tank wall
c – Measuring range
m – Dead zone
f) In case the maximum surface level in the tank interferes with the dead zone, the level meter has
to be mounted into a higher installation neck. Subsequently, the tank can be lled nearly up
to the maximum volume. The neck’s inner surface has to be even and smooth (without edges
and welded joints), the inner edge should be rounded in the position point where the ultrasonic
waves leave the pipe. Choose the largest possible neck’s diameter, but keep the neck’s height
as low as possible. Recommended dimensions of the neck are listed in Fig. 4.
ULM–53–02 ; 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
ULM–53–02 ; 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)
7.
iNsTallaTiON iNsTrUCTiONs

ULM–53 © Dinel, s.r.o.
8
g) Foam on the level absorbs the acoustic wave
reection which might cause malfunction of the
level meter. For mounting nd the location where
the foaming is as low as possible (Fig. 5).
h) Emitted acoustic signal must not be affected by
near objects (ladders, mixers, propellers, etc.),
stream of lling, air ow, etc. (Fig. 6).
Fig. 6: Minimum distance of the level meter to nearby objects
in the tank
i) Do not install the level meter in or above the lling point (Fig. 7).
Fig. 7: Level meter installation outside the inuence of lling circulation
x – distance to the edge of the longest object
c – measurement range of the level meter
Fig. 5: Thick foam on the surface
!
j) In case the level of bulk-solid materials is measured, the measurement range is reduced. We
recommend to consult the use with the manufacturer.
ULM–53–02 ; 10 x > 1/12 c
(min. 200 mm)
ULM–53–06 x > 1/8 c
(min. 200 mm)
ULM–53–20 x > 1/10 c
(min. 200 mm)

9
© Dinel, s.r.o. ULM–53
Fig. 10: Reection board
H + L = Dead zone
Fig. 12: Intensely stirred surface
!
Fig. 9: Prevention to avoid intrusion
of humidity
Fig. 8: Direct solar radiation shielding
cover
k) The level meter must not be installed in places
with direct solar radiation and must be protected
against weather conditions.
l) In case the installation at places with direct solar
radiation is inevitable, it is necessary to mount
a shielding cover above the level meter (Fig. 8).
m) If possible, insert the cable from above and let a
draining loop in order to avoid intrusion of humid-
ity (Fig. 9).
n) The cable bushing as well as the connector have
to be tightened sufciently to prevent penetra-
tion of moisture.
o) To lower the minimum distance to the medium
measured, a reection board made from solid,
even and smooth material can be installed together
with the level meter (Fig. 10). Subsequently, the
tank can be lled nearly up to the maximum vol-
ume. The solution is suitable for open tanks and
reservoirs.
p) Scattering or attenuation of the ultrasonic signal
can result if the surface level has been moderately
stirred or rippled as a consequence a stirrer’s op-
eration, inow of liquid and the like. Consequently,
measuring range or unreliable level meter’s func-
tioning might follow (Fig. 11).
q) False surface reections of the ultrasonic signal
might result as a consequence of rotating mixer’s
blades that ripple the surface level and thus cause
unreliable level meter’s functioning (Fig. 12).
r) The level meter should not be installed at places
where ultrasonic signal false reections caused
by stirrer blades might occur (Fig. 13).
!
Fig. 11: Moderately stirred
surface
Fig. 13: False reection caused by
mixer blade

ULM–53 © Dinel, s.r.o.
10
Fig. 15: Level meter connection diagram (“I” version) and
the inside of the connector socket
Fig. 16: Level meter connection diagram (“U” version) and
the inside of the connector socket
Comments:
BK – black BN – brown
BU – blue NC – not connected
Make the electric connection in voltage-free state!
With regard to possible occurrence of electrostatic charge on non-conductive parts of the
level meter, metallic anges of the ULM–53Xi–10 and 20 (for explosive areas) level meters
must be grounded with ground terminal!
In case of strong electromagnetic interferences (EMI), parallel cable ducting with power lines, or
when cable length exceeds 30 m we recommended to use shielded cable.
0 V (BU)
Uout (BK)
+U (BN)
0 V (BU)
+U (BN)
s) Horn adapter ST–G1 (ULM–53_–02) and
ST–G1,5 (ULM–53_–06) for improved trans-
mitted signal reception can be used in open
channels, sumps, tanks, etc.
t) Horn adapter increases the radiation directiv-
ity of acoustic waves, improves reception of
weak echoes (unstable level surfaces, solid
materials, etc.) and reduces the risk of false
reections.
u) The horn adapter is installed to level meters
via process connection G1" (ST–G1) or G1½"
(ST–G1,5).
Horn adapter ST
Fig. 14: Horn adapter installation
8.
ElECTriCal CONNECTiON
The ultrasonic level meter is designed
to be connected to supply unit or to con-
troller through two or three-wire cable
with outer diameter 6 ÷ 8 mm (recom-
mended cross section of cores 0.5 mm2
to 0.75 mm2) by means of connector
which is included in delivery. Connec-
tion diagram and inner view of the con-
nector as shown in Fig. 15 and 16.

11
© Dinel, s.r.o. ULM–53
Button “DOWN”
Button “UP”
LED indicator “MENU”
LED indicator “STATE”
Connector
Ultrasonic transmitter
Fig. 17: Full view of ultrasonic level meter
Safety screw
LED Color Function
“STATE“ Green
Slow ashing (1 ... 2 s, depends on the measuring interval) – reception of
reected signal (echo) from the measured level. Correct function.
Fast blinks – the measured value is in “dead zone” of the level meter, or the
ultrasonic transmitter is polluted.
Dark – no echo reection. Wrong medium type or incorrect installation
(malfunction).
„MENU“ Yellow
Slow blinks – signalization setting limit 4mA (0 V).
Fast blinks – signalization setting limit 20mA (10V).
Three short blinks – signalization factory default setting
10.
sTaTUs aNd failUrE sigNalizaTiON
Button “DOWN”
• Set-up mode access
• Direct set-up to value 4mA (0V)
• Decreasing of values by predened pitch
Button “UP”
• Set-up mode access
• Direct set-up to value 20mA (10V)
• Increasing of values by predened pitch
LED indicator “STATE”
• Signalling of measuring mode
LED indicator “MENU”
• Signalling of set-up mode access
9.
sET-UP ElEmENTs

ULM–53 © Dinel, s.r.o.
12
12.
sETTiNg UP
After the level meter has been installed, set it up using the “DOWN” and “UP” buttons (see Fig. 17).
The LED indicator “MENU” indicates the on-going set-up procedure of the level meter. You can set
up the “basic mode”, which measures the level height (Fig. 18) and set up the “inverse mode” to
measure distances (Fig. 19).
12. 1.
Basic mode
Low margin (4 mA or 0 V) setting up
1. The tank lls up to the level required
2. Press the “DOWN” button for at least 2 seconds to activate the set-up mode (the LED in-
dicator “MENU” blinks slowly). Keep the “DOWN” button pressed for another 3 seconds to
directly set the value to 4mA (0V). In this case, item 3 can be omitted.
3. Press the “DOWN” and “UP” buttons to accurately set-up an arbitrary value stepwise (hold the
relevant button to increase the adjustment step gradually).
4. Press both buttons simultaneously for at least 1 second to conrm the values set.
5. Further adjustment can’t be performed sooner than 2 sec. after both of the buttons have been
released.
High margin (20 mA or 10 V) setting up
1. The tank lls up to the level required
2. Press the “UP” button for at least 2 seconds to activate the setting-up mode (the LED indica-
tor “MENU” blinks fast). Keep the “UP” button pressed for another 3 seconds to directly set
the value to 20mA (10V).
Fig. 18: Basic mode (measurement
of level height)
Fig. 19: Inverse mode (distance measurement)
11.
OPEraTiONal mOdEs
The level meters can either work in the “basic” mode that measures the level height (Fig. 18), or in
the “inverse mode” that measures distances (Fig. 19).

13
© Dinel, s.r.o. ULM–53
Factory defaults settings
1. Disconnect the level meter from the power supply (eg. by disconnecting the connector).
2. Without power supply simultaneously press the “DOWN” and “UP” buttons.
3. Connect the power supply, the “DOWN” and “UP” buttons still hold down.
4. Wait approx. 2 sec. for 3 short ashes of LED “MENU”. Then, release both buttons.
5. Now the level meter is set in default settings (range). The default values are listed in the table
on page 20.
In case the level appears in the dead zone (the LED indicator “STATE” blinks fast), the setting-up
mode terminates instantly and is inaccessible as long as the level stays within the dead zone.
In case no button is pressed during the “setting-up mode” for as long as 20 seconds, the level meter
returns to the measuring mode. Newly adjusted values will not be saved.
3. Press the “DOWN” and “UP” buttons to accurately set-up an arbitrary value stepwise (hold the
relevant button to increase the adjustment step gradually).
4. Press both buttons simultaneously for at least 1 second to conrm the values set.
5. Further adjustment cannot be performed sooner than 2 seconds after both of the buttons
have been released.
12. 2.
inverse mode
Low margin (20 mA or 10 V) setting up
1. The tank lls up to the level required
2. Press the “UP” button for at least 2 seconds to activate the setting-up mode (the LED indicator
“MENU” blinks fast). Keep the “UP” button pressed for another 3 seconds to directly set the value
to 20mA (10V).
3. Press the “DOWN” and “UP” buttons to accurately set-up an arbitrary value stepwise (hold the
relevant button to increase the adjustment step gradually).
4. Press both buttons simultaneously for at least 1 second to conrm the values set.
5. Further adjustment cannot be performed sooner than 2 seconds after both of the buttons have
been released.
High margin (4 mA or 0 V) setting up
1. The tank lls up to the level required
2. Press the “DOWN” button for at least 2 seconds to activate the setting-up mode (the LED
indicator “MENU” blinks slowly). Keep the “DOWN” button pressed for another 3 seconds to
directly set the value to 4mA (0V).
3. Press the “DOWN” and “UP” buttons to accurately set-up an arbitrary value stepwise (hold the
relevant button to increase the adjustment step gradually).
4. Press both buttons simultaneously for at least 1 second to conrm the values set.
5. Further adjustment cannot be performed sooner than 2 seconds after both of the buttons
have been released.

ULM–53 © Dinel, s.r.o.
14
15.
safETy, PrOTECTiON, COmPaTibiliTy aNd ExPlOsiON PrOOf
The level meter ULM–53 is equipped with protection against reverse polarity and output current
overload.
Protection against dangerous contact is secured by low safety voltage that complies with
EN 33 2000-4-41.
Electromagnetic compatibility according to EN 55022/B, EN 61326/Z1 and EN 61000-4-2 to 6.
Explosion proof of ULM–53Xi type complies with the following standards: EN 60079-0 : 2007;
EN 60079-11 : 2007 ; EN 60079-26 : 2007 and examined by FTZÚ-AO 210 Ostrava - Radvanice
certicate No.: FTZÚ 09 ATEX 0119X.
Supplied electrical equipment matches the requirements of valid European directives for safety and
electromagnetic compatibility. The declaration of Conformity for the above mentioned product was
issued.
Special conditions for safe use ULM–53Xi
The device is designed for connection to isolating repeater IRU–420.
When the other approved supply unit is used, whose output parameters satisfy above mentioned
output parameters, it is necessary to have a galvanic separation or, if supply unit without galvanic
separation is used (Zener barriers), it is necessary provide potential equalization between sensor
and point of barrier earthing.
For application in zone 0 the present explosive atmospheres - mixture of air with ammable gases,
vapour or mists must comply: - 20°C < Ta < + 60°C; 0.8 bar < p < 1.1 bar
The device must be installed in such a way, to prevent mechanical damage of sensor face
13.
OrdEr COdE
14.
aCCEssOriEs
Optional
(for extra charge)
• Fixing nut G1" and G1 ½"
• Horn adapter ST–G1 and ST–G1,5
Standard
(included in the price)
• 1 pc of seal
(only for ULM–53_–02, 06)
• 1 pc of connector IP67 socket
ULM – 53 – –
Output type:
I– Current (4 ... 20 mA)
U– Voltage (0 ... 10 V) – only for performance “N”
Maximum range:
02 – 0.25 ... 2 m
06 – 0.25 ... 6 m
10 – 0.5 ... 10 m
20 – 0.5 ... 20 m
Performance:
N– Normal (non-explosive areas only)
Xi – suitable for explosive areas

15
© Dinel, s.r.o. ULM–53
16.
UsE, maNiPUlaTiON aNd maiNTENaNCE
The level meter does not require any personnel for its operation. Follow-up displaying device is
used to inform the technological entity operating personnel on the measured substance level height
during the operation. Maintenance of this equipment consists in verication of integrity of the level
meter and of the supply cable. Depending on the character of the substance measured, we recom-
mend to verify at least once per year the clarity of the ultrasound transducer emitting eld and to
clean it, respectively. In case any visible defects are discovered, the manufacturer or reseller of this
equipment must be contacted immediately.
It is forbidden to perform any modications or interventions into the ULM–53 level meter
without manufacturer’s approval. Potential repairs must be carried out by the manufacturer
or by a manufacturer authorized service organization only.
Installation, commissioning, operation and maintenance of the ULM–53 level meter has to
be carried out in accordance with this instruction manual; the provisions of regulations in
force regarding the installation of electrical equipment have to be adhered to.
18.
markiNg Of labEls
Level meters label data ULM–53Xi–02–I and ULM–53Xi–06–I:
Symbol of producer: Dinel logo®
Internet address: www.dinel.cz
Connection scheme and labelling of wires: Ui ; 0 V
Level meter type: ULM–53Xi–02–I, ULM–53Xi–06–I
Serial number: Ser. No.: xxxxx – (from the left: production year, serial production No.)
Output current range: Io = 4 ... 20 mA
Limit operating parameters: Ui = 30 V =, Ii = 132 mA; Pi = 0,99 W; Ci = 370 nF; Li = 0,9 mH
Ambient temperature range for the zone 0: ta = -20 ... +60°C
Ambient temperature range: ta = -30 ... +70°C
Label of non-explosive device:
17.
gENEral CONdiTiONs aNd warraNTy
Dinel, s.r.o. guarantees for the period of three (3) years that the product has the characteristic as in
technical specication is mentioned. The guarantee can be invoked only when the product is com-
pleted by original invoice and guarantee list. This guarantee does not cover the damages resulting
from misuse, improper installation or incorrect maintenance.
This guarantee cease when user or the other person makes any changes on the product or the
product is mechanically or chemically damaged, or the serial number is not readable.
In the case of rightful complaint we replace the product or its defective part.

ULM–53 © Dinel, s.r.o.
16
Level meters label data ULM–53Xi–10–I:
Symbol of producer: Dinel logo®
Internet address: www.dinel.cz
Connection scheme and labelling of wire: Ui ; 0 V
Level meter type: ULM–53Xi–20–I
Serial number: Ser. No.: xxxxx – (from the left: production year, serial production No.)
Output current range: Io = 4 ... 20 mA
Limit operating parameters: Ui = 30 V =, Ii = 132 mA; Pi = 0,99 W; Ci = 370 nF; Li = 0,9 mH
Ambient temperature range for the zone 0: ta = -20 ... +60°C
Ambient temperature range: ta = -30 ... +60°C
Label of non-explosive device:
Performance: II 2G Ex ia IIA T5
Number of certicate of intrinsically safety: FTZÚ 09 ATEX 0119X
Protection class: IP67, Compliance mark:
Number of authorized person examining control of system quality: 1026
Electro-waste take-back system mark:
Level meters label data ULM–53Xi–20–I:
Symbol of producer: Dinel logo®
Internet address: www.dinel.cz
Connection scheme and labelling of wire: Ui ; 0 V
Level meter type: ULM–53Xi–10–I
Serial number: Ser. No.: xxxxx – (from the left: production year, serial production No.)
Output current range: Io = 4 ... 20 mA
Limit operating parameters: Ui = 30 V =, Ii = 132 mA; Pi = 0,99 W; Ci = 370 nF; Li = 0,9 mH
Ambient temperature range for the zone 0: ta = -20 ... +60°C
Ambient temperature range: ta = -30 ... +60°C
Label of non-explosive device:
Performance: II 1/2G Ex ia IIA T5
Number of certicate of intrinsically safety: FTZÚ 09 ATEX 0119X
Protection class: IP67, Compliance mark:
Number of authorized person examining control of system quality: 1026
Electro-waste take-back system mark:
Real label size is 175 x 11 mm.
Performance: II 1/2G Ex ia IIB T5
Number of certicate of intrinsically safety: FTZÚ 09 ATEX 0119X
Protection class: IP67, Compliance mark:
Number of authorized person examining control of system quality: 1026
Electro-waste take-back system mark:

17
© Dinel, s.r.o. ULM–53
TEChNiCal daTa – lEvEl mETEr
Measuring range 1)
ULM–53_–02–_
ULM–53_–06–_
ULM–53_–10–_
ULM–53_–20–_
0.25 ... 2 m
0.25 ... 6 m
0.5 ... 10 m
0.5 ... 20 m
Current supply ULM–53_–__ –U 12 mA
Supply voltage ULM–53N–__–_
ULM–53Xi–__ –I
18 ... 36 V DC
18 ... 30 V DC
Current output ULM–53_–__ –I
Voltage output ULM–53N–__ –U
4... 20 mA (limit values 3.9 ... 20.5 mA)
0 ... 10 V (limit values 0 ... 10.2 V)
Resolution < 1 mm
Accuracy
(within the total range)
ULM–53_–06–_; 10–_;20–_
ULM–53_–02–_
0.2%
0.25%
Temperature error max. 0.04% / K
Beamwidth (-3 dB)
ULM–53_–02–_; 10–_
ULM–53_–06–_
ULM–53_–20–_
10°
14°
12°
Ambient temperature range ULM–53_–02–_; 06–_
ULM–53_–10–_; 20–_
-30 ... +70°C
-30 ... +60°C
Measuring period
ULM–53_–02–_
ULM–53_–06–_
ULM–53_–10–_
ULM–53_–20–_
0.6 s
1.0 s
1.8 s
5.0 s
Averaging (can be modied according to agreement) 4 samples
Short time temperature stress resistance +90°C / 1 hod.
Max. operation overpressure (on transmission surface) 0.1 MPa
Limit operating parameters 2) (for the Xi version only)
Ui=30V DC; Ii=132mA; 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) Rmax = 270 Ω
Minimal voltage output load resistance R > 1 kΩ
Delay between supply power rise
time and rst measurement
ULM–53_–02–_; 06–_;10–_
ULM–53_–20–_
3 s
5 s
Delay between power supply rise
time and full emission output
ULM–53_–02–_; 06–_;10–_
ULM–53_–20–_
30 s
45 s
Weight
ULM–53_–02–_
ULM–53_–06–_
ULM–53_–10–_
ULM–53_–20–_
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 temperature range in the zone 0: -20°C ... +60°C; allowed pressure range in the zone 0: 80 ... 110 kPa.
19.
sPECifiCaTiONs

ULM–53 © Dinel, s.r.o.
18
arEa ClassifiCaTiON
(according to EN 60079-10 and EN 60079-14)
ULM–53N–_ _–_ Performance for non-explosive areas
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 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 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 with isolating repeater (IRU–420)
the whole level meter – zone 1
faCTOry dEfaUlT
ULM–53_–02 ULM–53_–06 ULM–53_–10 ULM–53_–20
Min. measuring range (20mA) 0.25m 0.25 m 0.5m 0.5m
Max. measuring range (4mA) 2m 6m 10m 20
m

Dinel, s.r.o.
U Tescomy 249
760 01 Zlín
Czech Republic
Tel.: [phone]
Fax: [phone]
E-mail: [email protected]
www.dinel.cz
The lastest version of this instruction manual can be found at www.dinel.cz
Version:
industrial electronics
04/2014