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Equipment Setup
87
1.16
Checking and Adjusting the Circular Level on the Tribrach
Description
The circular level is used to level the antenna over the observation point. An incorrectly
adjusted circular level means that the GNSS antenna is not properly levelled over the point.
This means that in fact another point on the ground is observed.
Tribrach should be checked and adjusted
• before the first use.
• before each precision survey.
• after long periods of transport.
• after long periods of work.
• if the temperature changes by more than 20°C.
Equipment checklist
Check and adjust step-
by-step
• Tripod
• Carrier with precision bubble checked and
adjusted
• Tribrach
• Adjusting pin
Step
Description
1.
Set up the tripod.
2.
Screw the tribrach onto the tripod.
3.
Fix the carrier to the tribrach.
4.
Level the tripod using the precision bubble on the carrier.
5.
Is the circular level on the tribrach centered and does not extend beyond the
circle?
Summary of Contents for GPS1200+
Page 1: ...Leica GPS1200 Technical Reference Manual Version 7 0 English...
Page 26: ...26 GPS1200 Table of Contents...
Page 69: ...Equipment Setup GPS1200 69 Equipment setup RX12_32 a b c e d k j i l m n o f h g...
Page 89: ...Equipment Setup GPS1200 89 Diagram GPS12_61...
Page 363: ...Convert Import Data to Job GPS1200 363 Point imported with code...
Page 451: ...Config General Settings GPS1200 451 Next step PAGE F6 changes to the first page on this screen...
Page 472: ...Config General Settings GPS1200 472 Next step PAGE F6 changes to the first page on this screen...
Page 699: ...STATUS GPS1200 699 Next step CONT F1 exits STATUS Position...
Page 718: ...STATUS GPS1200 718 Next step CONT F1 exits STATUS Tilt Measurement...
Page 1191: ...Survey General GPS1200 1191 Next step PAGE F6 changes to another page on this screen...
Page 1352: ...Menu Tree GPS1200 1352 FIELD TO OFFICE...
Page 1411: ...PPS Output Notify Message Format GPS1200 1411 Example PLEIR HPT 134210000 1203 17...