9400-LIN – Guided Wave Radar (GWR) Level Sender
Application
The 9400 series guided wave radar level transmitter is a breakthrough in cost effective very high accuracy, very high resolution liquid level sensing for heavy duty on vehicle applications.
Rochester Gauges’ GWR level sender is the culmination of years of research into micropower impulse radar, time domain reflectometry and equivalent time sampling. The device is capable of maintaining very accurate level
readings independently of dramatic changes in dielectric constant. The 9400 can optionally be configured to accurately measure both fuel level and the level of dissimilar materials, such as water/fuel interface.
The device emits a series of electromagnetic pulses down the sensor probe. Liquid/air interface, and dissimilar liquid interfaces provide a change in the characteristic impedance of the sensor probe, and create a reflection of the pulse. The time-of-flight of the reflected pulses is measured, and the liquid and interface levels are calculated.
General Specifications*
Active Sensing Range
46mm from mounting flange to 15mm from probe end
Housing Diameter
70mm
Headroom
27mm
Length
410mm with options up to 2000mm
Connector Type
Souriau UTS Series circular 4 pin, other options available
Connector Position
Mid-way on 80° segment
Weight
Approximately 230g
Operating and Storage Temperature Range
-40°C to +105°C
Water Sealing
ISO 20653:2013 (IPX6K and IPX9K)
Dust Sealing
ISO 20653:2013 (IP5XK and IP6XK)
Maximum Tank Pressure
10 PSI
Shock
ISO 16750-3
Vibration
ISO 16750-3
Drop
ISO 16750-3
Surface Resistance
ISO 16750-3
Chemical Resistance
ISO 16750-5
Corrosion Resistance
VDA621-415, DIN EN ISO 16270-2, DIN EN ISO 9227
Corrosive Gas Resistance
DIN 50018
Electrical Specifications
Supply Voltage
7 – 32Vdc
Supply Current
50mA maximum @ 13.6Vdc
Superimposed AC on DC
ISO 16750-2
Supply Voltage Drop
ISO 16750-2
EMC/EMI
95/54/EC, 72/245/EEC version 2006/28EC, EU
ISO 13766:2006
Reverse Polarity to 60V
Short Circuit Protection
RoHS Compliant
Output Specifications
Output Protocol
LIN 2.0 (or higher)
LIN BUS Registered Supplier ID
00 09
Accuracy
±1.0% of span typical at 25°C.
±2.0% of span max (including nonlinearity, hysteresis, temperature effects).
Resolution
0.025”
Construction*
Housing
Die Cast Low Copper Aluminum
Sensor Tube and Electrode
Low Copper Aluminum
Wetted Materials
Low Copper Aluminum, Buna Nitrile (or Viton), HDPE
Mounting Configuration
SAE 5 Bolt
Weight
Approximately 230g
* Materials and specifications are subject to change without notice.
Pressure ratings subject to change due to temperature and other environmental considerations
