User's Manual
Table Of Contents
- Table of Contents
- General Information
- Specifications
- Installation
- Location
- Dimensions: IQ Radar 300 with Rod Antenna
- Dimensions: Threaded Rod
- Dimensions: Horn
- Mounting
- Rod Assembly
- Mounting: Rod Assembly
- Mounting: Manhole Covers
- Mounting: Horn Antennas
- Mounting: Waveguide Antenna
- Mounting: Stillpipe or Sidepipe
- Mounting: Horn with Waveguide Extensions
- Mounting: Sanitary Mounting
- Mounting: Location
- Interconnection
- Start Up
- Operation(
- Application Examples
- Parameter Descriptions
- _
- _
- Quick Start Parameters (P001 to P007)
- Volume Parameters (P050 to P053)
- Display and Reading Parameters (P060 to P063)
- Fail-Safe Parameters (P070 to P072)
- mA Parameters (P200 to P219)
- Independent mA Setpoints Parameters (P210 and P211)
- Profile Record Parameters (P330 to P337)
- Auto Record ON and OFF Setpoint Parameters (P334 to P337)
- Installation Records Parameter
- Range Calibration Parameters
- Rate Parameters
- Measurement Verification Parameters
- Communication Parameters
- Echo Processing Parameters
- Algorithm Parameters
- TVT Adjustment Parameters
- P837 Auto Near TVT
- Test Parameters
- _
- Communications: Modbus Register Map
- Communications: Data Types
- Error Handling
- Troubleshooting
- Maintenance(
- Appendix I
- Appendix II
- Appendix III
- Appendix IV
- Appendix V
PL-611 IQ Radar 300 Page 45
Operation
Operation
Operation
Operation
Operation
Overview
The IQ Radar 300 is a level measuring device for liquids and slurries. Using advanced
pulse radar technology, the device calculates material level by emitting a series of radar
pulses and then analyzing their reflections.
The device consists of an enclosed electronic component mounted to a flanged antenna
component. The electronic component generates a 5.8 GHz (U.S.A. 6.3 GHz) radar signal
that is directed to the antenna, waveguide, or horn.
The radar signal is emitted axially from the antenna and propagates along this axis in a
defined conical beam decreasing in strength at a rate proportional to the square of the
change in distance.
The radar pulse detects the interface between the dielectric constant of the atmosphere
and that of the material being measured. Electro-magnetic wave propagation is not
sensitive to the temperature and atmospheric conditions or to variations in the vessel.
The series of echoes from the pulses transmitted are sensed by the antenna during the
receive period of the electronics and are then stored as a profile of the activity in the
vessel. The profile is analyzed and the distance of the material surface to the radar
antenna is determined. This distance is used as a basis for display of material level and
mA output.
Transceiver
The IQ Radar 300 transceiver operates under 1 of 5 sets of pre-set conditions (P003):
parameter
value
measurement
response
P700/P701
rate
update
time
P705
rate
update
distance
P706
echo
verification
P711
fuzz
filter
P710
fail
safe
timer
P070
1 0.1 m/min
slow
600 0.30 2 100 100
2 1 m/min 300 0.10 2 50 10
3 10 m/min 60 0.05 2 10 1
4 100 m/min 60 0.05 0 1 0.1
5 1000 m/min
fast
60 0.05 0 0 0
When the echoes are received, the relevant echo extraction technique (P820 and P830)
is applied to determine the true material echo.
The measurement response limits the maximum rate at which the display and analog
output respond to changes in measurement. Select this carefully, especially where liquid
surfaces are in agitation or fall into the radar path during filling.