KROHNE OPTIWAVE 1400 C Specifications
Technical Datasheet
Technical Datasheet
OPTIWAVE 1400 C
OPTIWAVE 1400 C
OPTIWAVE 1400 COPTIWAVE 1400 C
Technical DatasheetTechnical Datasheet
24 GHz Radar (FMCW) Level Transmitter for liquids in
the water and waste water industry
•
Proven Polypropylene (PP) Drop antenna, insensitive to condensation or deposits
•
Narrow beam angle for a sharp focus on the medium
•
Robust stainless steel design (IP68 / NEMA 4X/6)
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CONTENTS
OPTIWAVE 1400 C
1 Product features 3
1.1 The FMCW radar level transmitter for liquids in the water and wastewater industry ... 3
1.2 Measuring principle.......................................................................................................... 4
2 Technical data 5
2.1 Technical data................................................................................................................... 5
2.2 Measuring accuracy .........................................................................................................8
2.3 Minimum power supply voltage ....................................................................................... 9
2.4 Dimensions and weights ................................................................................................ 10
3 Installation 19
3.1 Intended use ................................................................................................................... 19
3.2 Pre-installation requirements ....................................................................................... 19
3.3 Installation...................................................................................................................... 20
3.3.1 Pressure and temperature ranges....................................................................................... 20
3.3.2 Recommended mounting position: tanks............................................................................. 21
3.3.3 Recommended mounting position........................................................................................ 22
3.3.4 Mounting restrictions............................................................................................................ 23
3.3.5 Recommended mounting position: flow channels ............................................................... 24
3.3.6 Recommendations for pits and tanks made of non-conductive materials.......................... 25
4 Electrical connections 26
4.1 Non-Ex devices............................................................................................................... 26
4.2 Networks ........................................................................................................................ 27
4.2.1 General information.............................................................................................................. 27
4.2.2 Point-to-point connection..................................................................................................... 27
4.2.3 Multi-drop networks ............................................................................................................. 28
5 Order information 29
5.1 Accessories..................................................................................................................... 29
6 Notes 30
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OPTIWAVE 1400 C
PRODUCT FEATURES
1.1 The FMCW radar level transmitter for liquids in the water and
wastewater industry
This device is a non-contact radar level transmitter that uses FMCW technology. It measures
distance, level and volume of liquids and pastes. It is a device that provides accurate readings in
closed tanks, in the open air like rivers or dams, and can even measure volumetric flow rate.
1
1 PP Drop antenna. The PP Drop antenna has a small beam angle and is insensitive to condensation or deposits.
2 2-wire 24 GHz FMCW radar level transmitter
3 10-metre electrical cable
4 Watertight stainless steel housing
Highlights
• KROHNE is the pioneer of FMCW radar and has over 30 years of experience with this
technology
• Accuracy: ±2mm/ ±0.08¨
• Measuring range: 20 m / 66 ft
• Small beam angle
• Process temperature: -20...+80°C / -4...+176°F
• Process pressure: -1...3 barg / -14.5...43.5 psig
• 2-wire 4...20 mA (HART® 7)
• Maintenance-free concept
• Installation and operation made simple, safe and secure
• 3-year warranty
Industries
• Water
• Wastewater
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1
PRODUCT FEATURES
Applications
• Extraction, transport, storage and distribution of water from springs, rivers, lakes or the sea
• Rainwater basins
• Open-channel flow measurement
• Water, wastewater, sludge or other liquids in storage applications
• Wastewater pumping stations
• Floodwater alarm
• Liquid level of plastic tanks e.g. Intermediate Bulk Containers (IBC)
1.2 Measuring principle
A radar signal is emitted via an antenna, reflected from the product surface and received after a
time t. The radar principle used is FMCW (Frequency Modulated Continuous Wave).
The FMCW-radar transmits a high frequency signal whose frequency increases linearly during
the measurement phase (called the frequency sweep). The signal is emitted, reflected on the
measuring surface and received with a time delay, t. Delay time, t=2d/c, where d is the distance
to the product surface and c is the speed of light in the gas above the product.
OPTIWAVE 1400 C
For further signal processing the difference Δf is calculated from the actual transmitted
frequency and the received frequency. The difference is directly proportional to the distance. A
large frequency difference corresponds to a large distance and vice versa. The frequency
difference Δf is transformed via a Fast Fourier Transform (FFT) into a frequency spectrum and
then the distance is calculated from the spectrum. The level results from the difference between
the tank height and the measured distance.
Figure 1-1: Measuring principle of FMCW radar
1 Transmitter
2 Mixer
3 Antenna
4 Distance to product surface, where change in frequency is proportional to distance
5 Differential time delay, Δt
6 Differential frequency, Δf
7 Frequency transmitted
8 Frequency received
9 Frequency
10 Time
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OPTIWAVE 1400 C
TECHNICAL DATA
2.1 Technical data
•
The following data is provided for general applications. If you require data that is more
relevant to your specific application, please contact us or your local sales office.
•
Additional information (certificates, special tools, software,...) and complete product
documentation can be downloaded free of charge from the website (Downloadcenter).
Measuring system
Measuring principle 2-wire loop-powered level transmitter; FMCW radar
Frequency range K-band (24...26 GHz)
Max. radiated power (EIRP) <-41.3dBm according to ETSIEN302729 (LPR)
Application range Level measurement of liquids, pastes and slurries
Primary measured value Distance and reflection
Secondary measured value Level, volume, mass and flow rate
Design
Construction The measurement system consists of a measuring sensor (antenna) and a signal
Max. measuring range
(antenna)
Min. tank height 0.2 m / 8¨
Recommended minimum
blocking distance
Beam angle (antenna) PP Drop, DN100 / 4¨: 8°
User interface
User interface
User interfaceUser interface
User interface options HART® Field Communicator. Download the Device Description (DD) file from the
converter
20 m / 65.6 ft
0.8 m / 31.5¨
website.
System or PC with PACTware™. Download the Device Type Manager (DTM) file from
the website.
2
Measuring accuracy
Resolution 1mm/ 0.04¨
Repeatability ±1mm/ ±0.04¨
Accuracy Standard: ±2mm/ ±0.8¨, when distance ≤ 10 m / 33 ft;
Reference conditions acc. to EN 61298-1
Reference conditions acc. to EN 61298-1
Reference conditions acc. to EN 61298-1Reference conditions acc. to EN 61298-1
Temperature +15...+25°C / +59...+77°F
Pressure 1013 mbara ±50 mbar / 14.69 psia ±0.73 psi
Relative air humidity (RH) 60% ±15%
Target Metal plate in an anechoic chamber
±0.02% of measured distance, when distance > 10 m / 33 ft. For more data, refer to
Measuring accuracy
on page 8.
Operating conditions
Temperature
Temperature
TemperatureTemperature
Ambient temperature -20…+80°C/ -4…+176°F
Relative humidity (RH) 0...99%
Storage temperature -40…+85°C/ -40…+185°F
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TECHNICAL DATA
OPTIWAVE 1400 C
Process connection temperature
(higher temperature on request)
Pressure
Pressure
PressurePressure
Process pressure Subject to the process connection used and the process connection temperature.
Other conditions
Other conditions
Other conditionsOther conditions
Dielectric constant (εr) Direct mode: ≥2
Ingress protection IEC 60529: IP66 / IP68 (continuous immersion at a gauge pressure of 0.2 barg for 2
Maximum rate of change 60 m/min / 196 ft/min
-40…+80°C/ -40…+176°F
For more data, refer to
weeks)
NEMA 250: NEMA type 4X/6
Pressure and temperature ranges
on page 20.
Installation conditions
Process connection size The nominal diameter (DN) should be equal to or larger than the antenna diameter.
Process connection position Make sure that there are not any obstructions directly below the process
Dimensions and weights For dimensions and weights data, refer to
connection for the device. For more data, refer to
Dimensions and weights
Installation
on page 19.
on page 10.
Materials
Housing Standard: Stainless steel (1.4404 / 316L)
Wetted parts, including antenna PP and stainless steel (1.4404 / 316L)
Process connection Standard: Stainless steel (1.4404 / 316L)
Option: PP
Cable gland M20×1.5 with aluminium clamp
Process connections
Bottom of housing G 3 A (ISO 228)
Top of housing G 1 A (ISO 228)
Flange version
Flange version
Flange versionFlange version
EN 1092-1 DN80...100 in PN01 (max. 3 bar)
ASME B16.5 3...4¨ in Class 150 (max. 15 psig)
Other Others on request
Electrical connections
Power supply 12…30 V DC; min./max. value for an output of 21.5 mA at the terminals
Maximum current 21.5 mA
Current output load RL [Ω] ≤ ((U
voltage
Cable entry M20×1.5
Cable entry capacity (terminal) 0.5…3.31 mm² (AWG 20...12)
-12 V)/21.5 mA). For more data, refer to
ext
on page 9.
Minimum power supply
Input and output
Current output
Current output
Current outputCurrent output
Output signal Standard: 4…20 mA
Options: 3.8…20.5 mA acc. to NAMUR NE 43; 4…20 mA (reversed); 3.8…20.5 mA
(reversed) acc. to NAMUR NE 43
Output type Passive
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OPTIWAVE 1400 C
Resolution ±5 µA
Temperature drift Typically 50 ppm/K
Error signal High: 21.5 mA; Low: 3.5 mA acc. to NAMUR NE 43
HART
HART®
HARTHART
Description Digital signal transmitted with the current output signal (HART® protocol)
Version 7.4
Load ≥ 250 Ω
Digital temperature drift Max. ±15 mm / 0.6¨ for the full temperature range
Multi-drop operation Yes. Current output = 4 mA. Enter Program mode to change the polling address
Available drivers FC475, AMS, PDM, FDT/DTM
(1...63).
TECHNICAL DATA
1
Approvals and certification
CE The device meets the essential requirements of the EU Directives. The
Vibration resistance EN 60068-2-6 (5...8.51 Hz: 3 mm / 8.51...200 Hz:1g)
Shock resistance EN 60068-2-27 (25g shock ½ sinus: 6 ms)
Other standards and approvals
Other standards and approvals
Other standards and approvalsOther standards and approvals
Electromagnetic compatibility EU
Radio approvals EU
Electrical safety EU
NAMUR NAMUR NE 43 Standardization of the Signal Level for the Failure Information of
1 HART® is a registered trademark of the HART Communication Foundation
manufacturer certifies successful testing of the product by applying the CE
marking.
For more data about the EU Directives and European Standards related to this
device, refer to the EU Declaration of Conformity. You can download this document
free of charge from the website (Download Center).
EU: Electromagnetic Compatibility directive (EMC)
EUEU
EU: Radio Equipment directive (RED)
EUEU
FCC Rules
FCC Rules: Part 15, Class B
FCC RulesFCC Rules
Industry Canada
Industry Canada: RSS-211
Industry CanadaIndustry Canada
EU: Agrees with the safety part of the Low Voltage directive (LVD)
EUEU
USA and Canada
USA and Canada: Agrees with NEC and CEC requirements for installation in
USA and CanadaUSA and Canada
ordinary locations
Digital Transmitters
NAMUR NE 53 Software and Hardware of Field Devices and Signal Processing
Devices with Digital Electronics
NAMUR NE 107 Self-Monitoring and Diagnosis of Field Devices
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TECHNICAL DATA
2.2 Measuring accuracy
Use these graphs to find the measuring accuracy for a given distance from the transmitter.
4
3
1
2
1
0
0.1
0.2
-1
-2
-3
OPTIWAVE 1400 C
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10
15
20
-4
Figure 2-1: Measuring accuracy (graph of measuring accuracy in mm against measuring distance in m)
X: Measuring distance from the thread stop or flange facing of the process connection [m]
Y: Measuring accuracy [+yy mm / -yy mm]
1 Minimum recommended blocking distance = 0.8 m
0.2
1
0.1
0
0.33
-0.1
-0.2
20 30 40 50 60 70 80
Figure 2-2: Measuring accuracy (graph of measuring accuracy in inches against measuring distance in ft)
X: Measuring distance from the thread stop or flange facing of the process connection [ft]
Y: Measuring accuracy [+yy inches / -yy inches]
1 Minimum recommended blocking distance = 31.5¨
To calculate the accuracy at a given distance from the antenna, refer to Technical data on page 5
(measuring accuracy).
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OPTIWAVE 1400 C
2.3 Minimum power supply voltage
Use this graph to find the minimum power supply voltage for a given current output load.
TECHNICAL DATA
2
Figure 2-3: Minimum power supply voltage for an output of 21.5 mA at the terminals
X: Power supply U [V DC]
Y: Current output load R
L
[Ω]
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TECHNICAL DATA
2.4 Dimensions and weights
Device with top or bottom threaded connection
OPTIWAVE 1400 C
Figure 2-4: Device with top or bottom threaded connection
Dimensions [mm]
Øa b c d e f Øg
101.6 G1 20 220.7 282.7 83.5 G3
Dimensions [inches]
Øa b c d e f Øg
4.00 G1 0.79 8.69 11.13 3.29 G3
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