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![Page 1: Hornet Cableway Gauging Systems Set Up and Use Department of Primary Industries and Water Hobart, Tasmania 31 st August 2009.](https://reader037.fdocuments.us/reader037/viewer/2022110304/551c0fdd550346a84f8b5365/html5/thumbnails/1.jpg)
Hornet Cableway Gauging Systems Set Up and UseDepartment of Primary Industries
and Water
Hobart, Tasmania
31st August 2009
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Hornet V Hornet Plus ComparisonFeature Hornet Hornet Plus
Type of current meter ADCP only ADCP OR mechanical
Traversing System Powered by AC (generator) Powered by AC (generator)
Hoist System Powered by 2 x 12V (38ah) deep cycle batteries
Powered by 2 x 12V (38ah) deep cycle batteries
Hand Control 3 x AA rechargeable batteries (or alkaline in an emergency)
3 x AA rechargeable batteries (or alkaline in an emergency)
Signal processing No applicable Cats whisker and magnetic head types
Signal processing software for ‘clean’ signal
Hoist cable 3mm stainless steel 30 metres of amergraph with C1 connector
Horizontal distance correction Yes Yes
Adjustable traversing speed Up to 1 metre per second Up to 1 metre per second
Airline / Wetline correction No Yes
Maximum span 600 metres 600 metres
Maximum communications range 1000 metres 1000 metres
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Hornet (Basic) System
Suitable for ADCP only
Used for positioning only
No airline / wetline correction feature
Variable traversing speed (maximum 1m/sec)
Wireless hand-control
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Hornet Plus System
Suitable for ADCP OR conventional current meter
Auto-correction of distance and depth (air / wetline)
Variable traversing speed (maximum 1m/sec or 3.28ft /sec)
Wireless hand- control
Depth Measurement Resolution(0.01m OR 0.01ft)
Built-in Signal Processor for Mechanical Current Meters
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Set-Up – Install Hoist Batteries
Install the 1st battery opposite to the winch side Secure by locking in pin
Install the hand winch in the battery box with the slot provided
Install the 2nd battery above the hand winch and lock in place with pin
It may be necessary to connect power to drive control and retrieve traveller block from middle of stream
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Set-Up – Install Hoist
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Set-Up –Hoist Extension
Used where operating side platform is ‘high’ above ground level
Minimises OH&S risk from need to lift batteries and hoist to platform during assembly tasks
Needs to be factored into hand control setting prior to gauging (Hornet Plus systems only)
Hand Winch Mounting Box
Attaches to traveller block
Battery Mounting Boxes
Extension located between traveller block and hoist
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Set-Up – Install Hoist
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Set-Up – Drive Control InterlockInterlock serves 2 main purposes
1. In built ultrasonic proximity sensor prevents traveller block striking drive control cabinet (when activated)
2. In built ‘tilt’ sensor senses horizontal sag angle for auto correction of horizontal distance
Ensure underside of main cable makes contact with BOTH bottom Interlock studs
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Set-Up – Attach ADCP to Hoist
Open bottom cover on hoist and press button on control box to switch on power to hoist (BLUE L.E.D. is illuminated)
Press Lower to release connector
Remove ‘R’ clip and pin
from connector
Press Lower and pull down on connector
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Set-Up – Attach ADCP
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Operation – Initial Power Up
Apply power to Drive Control System by connecting portable generator
Switch on Hoist (button on control box)
Switch on Hand Control (blue button in top right hand corner)
Red L.E.D. on the hand control will turn off once communications have been established
Green L.E.D. will flash as the remote control communicates between the Hoist and Drive Control System
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Operation - Hand Control FeaturesLCD
(view Distance, Angles of Sag/Drift, Speed, Voltage & Status)
Variable Speed Control
Power & Zero Button(turns power On/Off &
‘Zeroes’ distance/depth when prompted)
Navigate Menus(rotate to scroll through
menus and press to select options)
LED’s - RED indicates an error - GREEN flashes while
communicating
Hoist Control Switch(raise/lower weight)
Traveller Switch(forward/reverse)
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Operation – Brief Description of Controls
Power + Zero – turns unit On/Off when ‘zero’ is required the user will be prompted with a ‘z’ on the LCD
Traversing Speed – controls speed of traverse (maximum 1 metre per second) constant speed required for ADCP gauging
Forward and Reverse Traversing – forward (from operating to far side reverse (from far side to operating side
Raise and Lower – raises and lowers current meter (constant rate)
Red, Green and Blue L.E.D.’s – red indicates a communication problem green indicates all OK blue indicates pulses from current meter (Hornet Plus only)
Menu navigation – selection made by ‘rotate and press’
Sounder – Hand Control has in built sounder which beeps for each current meter count (Hornet Plus only)
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Operation – Brief Description of Controls (continued)
Current meter Input and Output – Hornet Plus only
Operating Frequency – system uses 915MHz licence free radio band
LCD + backlight – backlight can be always OFF, ON or for several seconds horizontal distance data displayed (Basic Hornet)
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Operation – Brief Description of Controls (continued)
NiMh Battery charging – charged by either mains charger or 12VDC ‘cigarette lighter’ charger provided alkaline batteries can be used (ensure that charger is NOT connected
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Operation – Menu Operation
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Operation - Horizontal Distance Correction
Inclinometer attached to main cable measures ‘angle of sag’
Trigonometry used to constantly correct ‘raw’ horizontal distance to ‘true’ horizontal distance
‘W = L Cos θ’
Both ‘raw’ and ‘corrected’ distance displayed on hand control
← 10.30m 0.53m/s↨ 3.72m R[ ] H[ ]
L
W
θ
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Operation - Airline / Wetline Correction
Inclinometer inside hoist constantly measures ‘angle of drift’
Trigonometry used to correct ‘raw’ airline and wetline depth to ‘corrected’ depth
Both ‘raw’ airline / wetline depth, ‘corrected’ depth and ‘corrected depth to current meter’ displayed on hand control as shown
Corrected depth calculated in accordance with USGS ‘Measurement and Computation of Stream Flow Vol.1, Water Supply Paper 2175’
A 3.75 W 2.53mCTD 2.51m 5.5°
Water Flow
Main Cable
Airline
Wetline
θ
Corrected Depth
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Operation - Current Meter Signal Transmission
(Hornet Plus only)
In-built current meter signal processor (i.e. filters signal)
Continuous signal counting (regardless of communication status)
Any type of current meter counter can be used
Radio CommunicationsTo current meter counter
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Operation - Drive Control System
AC Electric Motor, Encoder & Controller
Drive Control
‘Inter-lock’
Control Box
(side view)
Control Box
(front view)
Portable Generator
(240V or 110V)
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Questions??
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The ‘Bad Old Days’ are OVER