Dinel ULM –70 Series Manual

• For continuous non-contact level measurement
• Suited to level measurement of various liquid
and bulk-solid materials
• Outstanding contrast OLED display
• Easy adjustment without measured material
• Quick view measured values on the display
• Xi version for usage in explosive areas
• Current output (4 ... 20 mA) with HART
communication protocol
The ULM ultrasonic level meters are compact measurement devices including an electroacoustics converter, central proces-
®
sor unit and display module. Using the electroacoustics converter, the level meters transmit the sequence of ultrasonic pulses
that spread towards the surface level. The converter recuperates refl ected acoustic waves that are subsequently processed in
the electronic module. The intelligent evaluation block fi lters out interfering signals, compares the cleaned received signal with
the false refl ection map (e.g. from mixers, ladders, reinforcement etc.) and selects a suitable refl ection (echo). Based on the
period during which the individual pulses spread towards the surface level and back and based on the measured temperature
in the tank, the instant distance to the surface level is calculated. According to the level height, the level meter output is set and
the measured value is displayed on the display.
The level meters are suited to level measurement of various liquid materials, sewerage waters, mash and paste materials, sus-
pensions 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.
F
EATURES OF VARIANTS
• ULM –70_ –02–I
• ULM –70_–06–I
• ULM –70_–10–I
• ULM–70_–20–I
Measuring range from 0.15 m to 2 m, plastic PVDF transmitter, mechanical connection with
thread G 1".
Measuring range from 0.25 m to 6 m, plastic PVDF transmitter, mechanical connection with
thread G 1 ½".
Measuring range from 0.4 m to 10 m, plastic PVDF transmitter, mechanical connection with
HDPE polyethylene fl ange (version "N") or aluminium alloy fl ange (version "Xi").
Measuring range from 0.5 m to 20 m, plastic PVDF transmitter, mechanical connection with
aluminium alloy fl ange.
U
LTRASONIC LEVEL METERS
ULM –70
ULM-70-dat-1.6