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Specification
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General
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Indicators
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Density and variables derived from it (e.g., standard density, concentration, etc.)
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Permissible Media
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- Particulate-free (<30 μm) hydrocarbons such as
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- Petrol E5 / E10 / E85
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- Diesel B7 / B10 / XTL
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- Jet-A1 (also F-35 or JP-8)
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- M100 (methanol)
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- Isopropanol
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- OME* (synthetic fuel)
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- LPG*
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- Aqueous media such as:
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- AdBlue®*
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- Glycol blends*
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- Other media can be used after individual clarification. *Optional
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Measurement Performance
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Max. Measurement Error
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- Density: ±0.5 kg/m³ (option ±[0.2 or 0.0075 x abs (T-25 °C)] kg/m³ if the value is >0.2)
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- Temperature: ±0.3 °C (option ±0.15 or ±[0.005 x abs (T-25 °C)] °C if the value is >0.15)
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Repeatability
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- Density: ±0.25 kg/m³ (option ±0.1 kg/m³)
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- Temperature: ±0.1 °C (option ±0.05 °C)
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Temperature Conditions
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Permissible Medium Temperature
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-40 … +60 °C
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Permissible Ambient Temperature
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-40 … +60 °C
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Permissible Storage Temperature
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-40 … +60 °C
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Specifications
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Permissible Density Measuring Range
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600…1,000 kg/m³ (option 0…1,200 kg/m³)
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Permissible Viscosity Range
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0.3…5 mPa s (option 0.3…50 mPa s)
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Permissible Pressure of Medium
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0…20 bar (abs)
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Burst Pressure
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80 bar (abs)
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Permissible Particle Size
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Max. 30 μm
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Permissible Flow Rate Range
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0…10 l/h (water)
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Vibrations
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Vibrations (<20 kHz) have no influence on the measuring accuracy due to the high working frequency of the microchannel.
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Inlet and Outlet Sections
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Inlet and outlet sections have no influence on the measuring accuracy.
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Ambient Conditions
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Climate Class
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Not yet defined
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Electromagnetic Compatibility
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EMC 2014/30/EU (EN 61326-1)
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Vibration and Shock Resistance
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Not yet defined
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Degree of Protection
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IP54 (IEC 60529)
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Material
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Housing
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- Stainless steel:
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- 1.4404 (316L)
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- 1.4542 (AISI/SUS 630)
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In Contact with Media
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- Stainless steel:
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- 1.4542 (AISI/SUS 630)
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- BOROFLOAT® 33 glass
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- Silicon
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- Epoxy resin
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Design
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DLO-M2_ex
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Dimensions
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30 mm x 66 mm x 15 mm (without cable, cable gland, and connection for protective ground)
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Weight
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<200 g
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Dimensions of Measuring Channel
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160 x 200 μm (500 nl)
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Fluidic Interfaces
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2 x M5 threaded holes at a 45° angle to the side and front surfaces
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Electrical Interface
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Communication
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- Continuous, without the need for an external command.
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- On the hardware standard RS485.
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- Proprietary Modbus RTU communication protocol (see data sheet)
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Cable Design
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- Permanently installed cable. Connection cable type KS-Li9YD11Y 4xAWG 28, manufacturer: Kabel Sterner
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Cable Length
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3 m (option up to 30 m)
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Cable External Diameter
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2.3 mm
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Wire Diameter
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4 x AWG 28
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Level Control
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- Digital communication lines and power supply in one common shielded cable, unidirectional, RS-485
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- Provide termination resistance of 330 Ω on the client side
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Energy Supply
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- Maximum current consumption 26 mA
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- Maximum power consumption 350 mW
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- Supply: 9.4 V…13.3 V (type: 12 V)
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- For DLO-M2_ex XA observe safety instructions – Zener barriers (supply and RS485)
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Dielectric Strength
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- The reference potential (GND) is connected to the housing and the earth connection (see product structure). There is no electrical isolation between the supply circuits, the communication interface, and GND
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Data Rate
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- Response time 100 ms
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Cable Assignment
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Wire color assignment
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- yellow – RS485 B, D1
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- green – RS485 A, D0
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- brown – GND (signal ground), common
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- white – VDD (supply voltage)
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- blank – shielding
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Certificates / Approvals
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CE Mark
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- The density sensor meets the legal requirements of the EC directives. TrueDyne Sensors AG confirms successful testing of the density sensor with the attachment of the CE mark.
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Directives
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- ATEX 2014/34/EU (L96/309)
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- LVD 2014/35/EU (L96/357)
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- EMC 2014/30/EU (L96/79)
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- RoHS 2011/65/EU (L174/88)
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Standards
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- EN 61010-1:2010
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- EN IEC 60079-0:2019
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- EN 60079-11:2012
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- EN 61326-1:2013
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- EN 61326-2-3:2013
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- EN 50581: 2012
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Product Structure
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- Density sensor DML02(_ex)
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- Mounting holes for mechanical fastening (6 x M3 threaded holes)
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- Fluidic interface (2 x M5 threaded holes)
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- Clamp on earthing plate with screws M3×8 TORX
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- Electronic interface for communication and power supply
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Mechanical Fastening
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DLO-M2_ex
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