Brantz Surveymaster PC model will talk to PROCOMM and many other
serial comms packages (as below diagram). Data is derived in
ASCII text format 123.456 3.456 i.e. six digit top readout,
space, four digit lower readout. Use a standard serial cable,
9pin to 9pin or 9pin to 25pin, but not a null-modem style cable.
Data is transmitted from the meter on demand when ANY ASCII
character is sent to the meter. The functions are viewed in
an extremely self -explanatory way if the meter is connected
to a PC computer running PROCOMM.EXE.
control of the meter is possible via the comms port other than
to demand the information above.
Specification for SurveyMaster mk 3 (April 1999) Power Supply:
D.C. 11volt to 14 volt at power lead. Fuse 2 Amps.
Immunity: To standards 89/336/EEC
Minimum corrected calibrated accuracy after deducting vehicle
errors = 99.6% +/- 1.0 metre.
metric calibration: Pulse source should be minimum 3 and
maximum 6 per metre traveled by the vehicle. Max speed 110kmp
. Pulse characteristics are low<1.0v, 4.5v < high < 5.1v. high
or low minimum duration 2ms measured with meter connected to
the sourced pulse.
parameters: 9600 bauds, no parity, 8 data bits, 1 stop bit.
demand: one ascii character sent to the meter at the above
parameter and repeated every 20ms up to five times, but only
if the previous demand has not been satisfied.
demand rate: no more than two per second excluding repeat
demand as above.
response: ascii characters displayed, or as logged prior
program compatible to execute under microsoft windows 95/98
from a floppy disk drive is supplied with the surveymaster pc.
this program will store distances from the brantz meter to a
file along with the key identity which called for the distance
information. the program may be copied freely and custom evolutions
of this software are available to suit special requirements.
the data file can be manipulated by word processors and database
programs such as microsoft excel