field calibration of instruments. · 2018-04-03 · field calibration -vs- service calibration...
TRANSCRIPT
� Douglas Churchill, PLS – Geospatial Sales and Support
Introduction
� Lou Desimone– Service Technician
� Founded 1989� 5 Offices With Service Centers
(VA-ME) – HQ Allentown, PA– NY Office, East Syracuse
About KPI
– NY Office, East Syracuse
� Trimble Geospatial– Infrastructure
� VRS Network (KeyNetGPS)
– Tools– GC/CM Field Solutions– Spectra Precision
� Definition� What needs field calibration� When should a calibration be completed� Benefits of calibrating Equipment� Compare
– Field Calibration
OVERVIEW
– Field Calibration– Service Calibration
� Procedures� Accessory part availability� Benefits of a Maintenance program� Schedule� Tips
� Field Calibration- is the practice of performing “function checks” and adjusting equipment in the field and office to account for the
Doug’s Definition
office to account for the environmental and performance variables.
What equipment needs a Calibration/Maintenance
� Total Station
� Prism Pole
� Tripod
� Tribrach� Tribrach
� Auto Level
� Lasers
Why / When / How
Field Calibration -vs- Service Calibration� Field Calibration
– Can be completed by the End User
– “Functional Test”– Adds user offsets to the instrument’s current offset values
which helps to calculate out most
Comparison
which helps to calculate out most of the angular errors
� Service Calibration– Cannot be completed by the End User
– “Testing All Functions and alignments”– Adjusts the factory offset values of the instrument to the
original manufacture specifications– Certificate of Calibration
Observe!
Total Station-� Are your bubbles consistent?
� OP Adjustment
� Instrument calibration routines
� Antenna’s?
AccessoriesAccessories� Prism Pole
� Tribrach
� Traverse Kits
Auto Levels-� Are your loops closing
Laser-� Rotating lasers.
Using Tribrach Adjustors.
� Place the tribrach on a tripod. Put the adjustor on the tribrach. Place the to be adjusted on top of the adjustor so that it is upside down looking at a target on the ceiling. The distance between the tribrach and target should be 4-5 feet.
� Using the leveling screws of the bottom tribrach, put the crosshair of the tribrach being tested on the target.the tribrach being tested on the target.
� Rotate the tribrach being adjusted 180 on the adjuster. If the crosshairs stay on the target you are good to go.
� After the 180 turn if the crosshair does not stay centered on the target, half the error needs to be corrected for. Use the adjustment screws on the tribrach to do this. NOTE: Adjustment screws and techniques do vary by tribrach manufacturer.
� Repeat the second two steps shown above until you get to the point where the crosshair stays on the target.
Adjustment tools.• Tribrach adjusting cylinders'.
• Prism pole jigs.
• https://www.loink.com/category/surveyingoptribrachadjustingsupplies
Part Availability- Accessories• Trimax
• 90550
• Tripod
• 22217
• Bi-Pod• Bi-Pod
• 5217-04-XXX
• Prism Pole
Low Dollar repairs. Why?
Technical Tips!
http://www.surveying.com/Video/Tech-Tip-Videos.aspx
� Maintenance Schedule/Plan– Ex: My Trimble Protected
� http://www.trimbleprotected.com/� VIDEO
– Free Rentals for Units under Support
� Peace of Mind� Planned and budgeted maintenance expenses
Maintenance
� Planned and budgeted maintenance expenses� Avoid surprises, lost productivity, downtime� Stay up-to-date and consistent on Firmware &
Software� Fleet management support� No more “bad news” moments
– Tripod � Tighten up loose screws� Make sure clamps are secure� Points are tight (use a point that fits
your needs, use never sieze)� Feet- secure � Straps- secure and complete
Additional Tips
� Straps- secure and complete� Etc
– Instrument Storage� Never Put away WET or COLD!� Always put in the case to transport
(even short distances)� Wipe down once a week with a damp
cloth (avoid optics)
– Firmware and Software Updates!� Latest versions can be downloaded
from manufacturers web sites.
QUESTIONS?QUESTIONS?
Sales- [email protected]
Service- [email protected]
Rental- [email protected]
www.keypre.com