Microlectra Dinel ULM-70, Instruction Manual

Page: 29 / 32

ULM–70 © Dinel, s.r.o. 29
t
ecHnicAL sPecificAtions
– L
eveL Meter
Measuring range
1)
ULM–70_–02
ULM–70_–06
ULM–70_–10
ULM–70_–20
0.15 ... 2 m
0.25 ... 6 m
0.4 ... 10 m
0.5 ... 20 m
Adjustable measuring range (SPAN) Min. 200 mm
Supply voltage
ULM–70N–_ _
ULM–70Xi–_ _
18 ... 36 V DC
18 ... 30 V DC
Output
ULM–70_–_ _-_-I
ULM–70_–_ _-_-M
4 ... 20 mA (Limit values 3.9 ... 20.5 mA), HART
®
RS-485 with protocol Modbus RTU
Current consumption
ULM–70_–_ _-_-I
ULM–70_–_ _-_-M
4 ... 20 mA / Max. 22 mA
Max. 20 mA
Resolution
ULM–70_–02 ; 10
ULM–70_–06
ULM–70_–20
< 1 mm
< 2 mm
< 2.5 mm
Accuracy (within the total range) 0.15 %
Temperature error Max. 0.04% / K
Operating frequency
ULM–70_–02
ULM–70_–06
ULM–70_–10
ULM–70_–20
120 kHz
75 kHz
50 kHz
30 kHz
Beamwidth (-3 dB)
ULM–70_–02 ; 10
ULM–70_–06
ULM–70_–20
10°
14°
12°
Ambient temperature range
ULM–70_–02 ; 06
ULM–70_–10 ; 20
-30 ... +70 °C
-30 ... +60 °C
Short-time temperature stress resistance +90 °C / 1 hour
Max. operation overpressure (on transmission surface) 0.1 MPa
Sensitivity 3 steps (low – medium – high)
Damping 0 ... 99 s
Measuring period 1 ... 4 s
Rise time ca. 30 s
Additional technical data for Ex proof
2)
– Max. internal values U
i
=30 V DC; I
i
=132 mA; P
i
=0.99 W; C
i
=370 nF; L
i
=0.9 mH
Failure indication
(echo loss, level in dead zone
3)
, internal failure)
Adjustable in modes:
3.75 mA ; 22 mA ; Last measured value
Maximal resistance of current output load (U = 24 V DC) R
max
= 270 Ω
4)
Mechanical connection
ULM–70_–02
ULM–70_–06
ULM–70_–10
ULM–70_–20
Screwing with thread G 1''
Screwing with thread G 1½''
Screwing with thread G 2¼''
Aluminium alloy flange
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.
3)
Dead zone = Blind zone = Blocking distance
4)
Including 250Ω resistor in case of HART
®
connection.
20 . Specifications