Hawk Centurion CGR Series Manuel utilisateur
Centurion
Guided Radar
CGR Series
Manual
Sultan Sonar Manual Rev 1.0
A Higher Level of Performance
www.hawkmeasure.com
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2
Table of Contents
Centurion Guided Radar
Contents
Overview 3
Principle of Operation 3
Function 3
Primary Areas of Application 3
Wiring & Dimensions 4
Wiring Compartment 4
Flexible Probe 4
Housing 4
Rigid Probe 4
Probe C35 (Interface) 4
Safety Instructions 5
CGR2 Series Wiring in Hazardous Locations 5
Installation Guide 6
Placement Requirements 6
Connection Requirements - Metallic Vessels 7
Nozzle Mounting 7
Mounting 8
Minimum Clearance 8
Forces On The Probe 9
Powering The Unit For The First Time 10
Setup Procedure 11
1. Setup Parameters 11
2. Advanced Parameters 12
3. Sensitivity Calibration 13
Troubleshooting - via Controller Keypad 14
False Echo Elimination 14
Unit is reading deeper than actual level 16
Unit is measuring deeper than
the length of the cable 16
Part Numbering 17
Centurion Guided Radar 17
Flange Table 18
Specications 19
Centurion Guided Radar
Overview
3
Principle of Operation
Single Probe
Microwave pulses are transmitted along a cable or probe to the product being measured. At the point where
the wave meets the product surface it is reflected by the product. The unit automatically calculates the
distance to the pulse reflection using time of flight & time expansion. The intensity of the reflection depends
on the dielectric constant of the product. The instrument measures the time between emission and reception
of the signal which is proportional to the distance.
Dual Probe
The unique patented HAWK Dual probe solution uses specially developed signal mapping techniques.
The combination of HAWK’s hardware and software give an accurate and consistent output for interfaces
level measurement.
Function
The HAWK range of Guided Radar products are ideal
for the measurement of liquids, sludge, powders and
granules to a range of 18m for level and interface. This
technology is not affected by pressure, temperature,
viscosity, vacuum, foam, dust, changes in dielectric
constant or coating of the probe.
Primary Areas of Application
• Chemicals
• Petrochemicals
• Cement
• Building Aggregates
• Energy
• Food & Beverages
• Oil & Gas
• Pharmaceutical
• Pulp & Paper
• Wastewater
• Multiple Interface Measurement
• IECEx Ex d [ia] ia IIC T6 Gb Ga
• Up to 18m range (316L cable)
• Simple setup
• Auto-Calibration to any dielectric
• Adjustable Sensitivity
• Precise & continuous accuracy
• 2 wire loop
• 4-20mA, 2x 4-20mA, HART, Foundation Fieldbus,
Probus PA
• Protection class IP66
• Measures extremely low dielectric (1.6)
• Programmable fail safe mode
Features
Wiring & Dimensions
4
Centurion Guided Radar
Flexible Probe
HousingWiring Terminal Compartment
110
109
152
87
L= Determine by Application
Ex CABLE GLAND
L1 = T.B.D.
4/8/16mm
D
(2.5")
A
B
E
63.0Cable Length (mm)
C
F
G
40.0(1.5”)
mounting thread
1 1/2" BSP or NPT
110
109
152
87
L= Determine by Application
Ex CABLE GLAND
L1 = T.B.D.
4/8/16mm
D
(2.5")
A
B
E
63.0Cable Length (mm)
C
F
G
40.0(1.5”)
mounting thread
1 1/2" BSP or NPT
Rigid Probe Probe C35 (Interface)
9
8
7
6
5 4
3
2
1
0
+
-
EMC
GND
GND
+-EMC
GND
Safety Instructions
Centurion Guided Radar
5
Safety Instructions
For installation requirements for Hazardous Locations please refer to appropriate Safety Instruction document
located at:
http://www.hawkmeasure.com/productdetail.asp?id=57
CGR2 Series Wiring in Hazardous Locations
Zone 1
Zone 1
or
Zone 0
4-20mA current loop
U= 14-28VDC
+
-
EMC/Protective
Ground
See terminal
compartment wiring
9
8
7
NOTE: (Ref Safety Instructions Sect 10a)
Application of supply voltages above 28VDC will cause damage to the equipment.
Voltages less than the Umwill not invalidate the type of protection.
Installation Guide
6
Placement Requirements
Centurion Guided Radar
Do NOT mount near infeed
Do NOT mount over or adjacent to any obstacles
Installation Guide
7
Connection Requirements - Metallic Vessels
The unit requires a metallic flange or sheet connected to the unit thread.
• Avoid mounting adjacent to internal structures
• Probes should not contact metallic container walls or floors.
Centurion Guided Radar
Min 100mm
Nozzle
Metal flange
Metal flange
Interior Vessel
Ceiling
Min 100mm
Nozzle
Metal flange
Metal flange
Interior Vessel
Ceiling
Multiple segmented connection
If using thread multiple connection pieces
for thread standard and size integration
a metallic plate or flange of minimum
recommended size should be at the
lowest possible point of the mounting.
Min 100mm
Nozzle
Metal flange
Metal flange
Interior Vessel
Ceiling
Nozzle Mounting
High Level
Avoid Narrow Nozzles
Minimum measurable distance can be affected by
narrow nozzles. Conduct Digitisation and/or increase
Blanking to a safe minimum distance for example:
double nozzle height + 25% safe distance
Do NOT mount in long narrow nozzles
High Level
Mounting
8
Minimum Clearance
Typically high dielectric materials (such as liquids) provide a good return signal.
Low dielectric materials (such as plastics and powders) require higher levels of sensitivity to measure. Failure
to adhere to mounting requirements can create a false signal reflection which will exhibit as high level lock-
ups either from the distance of the interference of a multiple of the distance of the interference.
Take into account the possibility of cable sway encroaching on the minimum clearance requirements.
Clearances 8mm Cable 4mm Cable
A. Minimum Nozzle Clearance 100mm (4”) 100mm (4”)
A: Recommended Nozzle Clearance 300mm (12”) 300mm (12”)
B. Minimum Wall Clearance 100mm (4”) 100mm (4”)
B. Recommended Wall Clearance 500mm (20”) 300mm (12”)
Centurion Guided Radar
A
B
Forces On The Probe
9
Centurion Guided Radar
Probe Type Tensile Force
A04 (4mm flexible cable @ 20ºC) 5kN
A08 (8mm flexible cable @ 20ºC) 19kN
Probe Type Lateral Force
B08 (8mm rigid probe @ 20ºC) 2kN
C35 (Coaxial Probe 1 @ 20ºC) 4kN
Forces on the probe
Tensile forces are heavily dependent on the viscosity and abrasive characteristics of the product in the vessel.
Ensure tensile loading is appropriate for the selected cable (8mm or 4mm) as well as the silo cover and
mounting structure. In critical cases it is better to select the larger flexible cable (8mm).
Lateral forces can exist due to movement and gradual flow of the product in the vessel, particularly with
powder and granular materials.
These forces can cause stress and strain on the probe, as well as the process fitting and mounting hardware.
Ensure that lateral forces are minimised by following the installation guidelines and Placement Requirements.
Powering The Unit For The First Time
10
A. Confirm mounting is within recommended specifications.
B. Check the selected unit matches the required application specifications.
For Hazardous Locations see appropriate safety instructions available at http://www.hawkmeasure.com
C. Check the wiring is correct and all connections are secure.
D. Apply power to the unit.
When power is applied the unit will start its normal load sequence.
The following messages will cycle on the display.
Product Type
Serial number
Unit ID
TDR Warming up
The unit may take up to 30 seconds to warm up, and then it will perform a scan to locate the level.
Centurion Guided Radar
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