Dinel ULM-53 series User manual

ULTRASONIC LEVEL METERS ULM–53
ULM-53-dat-1.6
•For continuous level measurement of liquids
(even if polluted),mash and paste materials
in open or closed vessels,sumps,open
channels,etc.
•Configuration and adjustment of measuring
rangeby two buttons
•Xiversion forusage inexplosive areas
•Stateindication bytwo LEDs
•Current (4 ... 20 mA)orvoltage(0 ... 10V)output
•Optionsof inverse function
(20 ... 4 mAor 10...0V)
• ULM–53_–02–_ measuring range from 0.25 mto2m, plastic PVDF transmitter and plastic body (PP+HDPE),
process connection with thread G 1".
•
ULM–53_–06–_ measuring range from 0.25 mto6m, plastic PVDF transmitter and plastic body (PP+HDPE),
process connection with thread G 1 ½".
• ULM–53_–10–_ measuring range from 0.5 mto10m, plastic PVDF transmitter and plastic body (PP+HDPE),
aluminium alloy ("Xi" version) or HDPE ("N" version) flange.
•
ULM–53_–20–_ measuring range from 0.5 mto20 m, with plastic PVDF transmitter and plastic body (PP+HDPE),
aluminium alloy flange.
FEATURES OF VARIANTS
Ultrasonic level meters ULM®is self contained device that includes electroacoustics transducer and electronic module. The
level meter ULM transmits series of ultrasonic pulses which propagates towards the liquid surface. Reflected acoustic wave is
received back in the ULM transducer and processed in electronic module. The distance calculations are based on time of flight
of the acoustic wave to the level and back.
The level meters are suited to level measurement of various liquid materials, sewerage waters, mash and paste materials,
suspensions etc. In case the level of bulk-solid materials is measured, the measurement range is reduced. We recommend to
consult the use with the manufacturer.
All the setting is done by means of two buttons, located in the upper part of the sensor. Level meters are equipped with optimal
state indication "STATE" and the setting process "MENU". The level meters outputs can be current or voltage.

ULM-53-dat-2.6
DIMENSIONAL DRAWINGS
ULM– 53_– 02–_ ULM – 53_–06–_
ULM– 53N – 10–_
ULM– 53_– 20–_
ground
terminal
Al alloy
ground
terminal
HDPE
ULM– 53Xi– 10–I
Al alloy

ULM-53-dat-3.6
TECHNICAL SPECIFICATIONS
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
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%
0.3%
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 sec.
1.4 sec.
1.8 sec.
5.0 sec.
Averaging (can be modified according to agreement) 8 measuring
Short time temperature stress resistance +90°C / 1 hour
Max. operation overpressure (on transmission surface) 0.1 MPa
Max. internal values
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)
Current output load resistance (at U = 24 V DC) Rmax = 270 ȍ
Voltage output load resistance R > 1 kȍ
Delay between supply power rise time
and first measurement
ULM–53_–02–_; 06–_ ;10–_
ULM–53_–20–_
3 sec.
5 sec.
Delay between power supply rise time
and full emission output
ULM–53_–02–_; 06–_ ;10–_
ULM–53_–20–_
30 sec.
45 sec.
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.
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

ULM-53-dat-4.6
MOUNTING RECOMMENDATION
Recommended installation Possible installation through the neck
Maximumlevel distance from ULM
m - dead zone
Installation distance from the tank wall
c - measuring range
d - min. 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 fixing nut or a flange.
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 filling, air
flow, etc.
Foam on the level absorbs the acoustic wave reflection 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–53–02; 10 d>1
/ 12 c
(min.200mm)
ULM–53–06
d>1 / 8c
(min.200mm)
ULM–53–20
d>1 / 10 c
(min.200mm)
ULM–53–02; 06a<3b
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-dat-5.6
LEVEL METER SETTING
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 4mA or 0V limit) and to decrease the output current
or voltage. The "UP" button as an opposite function (setting the
20mA or 10V limit and increasing the output current or voltage).
Values are confirmed by simultaneous pressing of both buttons for
about 1sec. The setting process is indicated by yellow "MENU"
LED indicator.
For detailed information please read at the instructions manual.
RANGE OF APPLICATION
For continuous non-contact level measurement of liquids (water solutions, sewerage water, etc.), mash and paste materials (sedi-
ments, 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. We recommend to consult the use with
the manufacturer.
button "DOWN"
button "UP"
LEDindicator"MENU"
LEDindicator"STATE"
connector
ultrasonic transmitter
Full viewofultrasonic level meter
LED indicators colour function
"STATE" green
Slow flashing (1–2 sec. depends on the measuring interval) – reception of reflected signal (echo) from the measured
level. Correct function.
Fastblinks– the measured value is in "dead zone" of the level meter, or the ultrasonic transm. is polluted.
Dark– the measured value is in "dead zone" of the level meter, or the ultrasonic transm. is polluted. Incorrect
installation or malfunction.
"MENU" yellow Slow blinks– signalization setting limit 4 mA
Fastblinks– signalization setting limit 20 mA
STATUS AND FAILURE SIGNALIZATION
ELECTRICAL CONNECTION
The ultrasonic level meter is designed to be con-
nected to supply unit or to controller through two or
three-wire cable with outer diameter 6 ÷ 8 mm (rec-
ommended cross section of cores 0,5 to 0,75 mm2)
by means of connector which is included in delivery.
Connection diagram and inner view of the connector
as shown in picture. Always disconnect the power
supply before connecting the level meter electrically!
Note: In case of strong electromagnetic interferences
(EMI), parallel cable ducting with power lines, or when
cable length exceeds 30m we recommended to use
shielded cable.
WARNING:
With regard to possible occurrence of electrostatic
charge on non-conductive parts of the level meter, me-
tallic flanges of the ULM-53Xi-10-I and ULM-53Xi-20-I
(for explosive areas) level meters must be grounded
with ground terminal!
The inside of the
connectorsocket
Connection scheme
bk – black bn – brown
bu – blue NC – not connected
coments:
0V
(bu)
+U (bn)
0V
(bu)
+U (bn)
Uout (bk)

Dinel, s.r.o.
U Tescomy 249
760 01 Zlín, Czech Republic
Phone:
Fax:
[phone]
[phone]
www.dinel.cz
[e-mail]
version 02/2010
ULM-53-dat-6.6
ORDER CODE
performance:
maximum range:
02 - 0.25 ... 2 m
06
- 0.25 ... 6m
10
- 0.5 ... 10 m
20
- 0.5 ... 20m
N
- Normal -usableinnon-explosive areasonly
Xi-Explosive proof -suitable for explosive areas
output type:
I - current;U-voltage(only for performance "N")
CORRECT SPECIFICATION EXAMPLES
ULM–53N–02–I ULM–53N–10–U
ULM–53Xi–06–I ULM–53Xi–20–I
ACCESSORIES
standard –included in the level meter price optional –for extra charge
1x of seal (only for ULM–53_–02; 06–_)
1x connector socket
stainless fixing nut UM–G1'' (for ULM–53_–02–_)
stainless fixing nut UM–G1 ½'' (for ULM–53_–06–_)
SAFETY,PROTECTIONS,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 certif. No.: FTZÚ 09 ATEX 0119X.
––
ULM a Dinel are registered trademark of company Dinel, s.r.o.