RetroSign GR1 & GR3 · Retroreflectometer
11
Off Timer:
(Power Saver)
This function controls how long the instrument stays ON when not used. This function is to preserve power before po-
wering off. Changed values and setting will be saved, and selecting a value less than 60 seconds will disable this func-
tion.
Mean Calculation:
(Calculate and display mean values)
The Mean values are calculated and displayed together with the number of measurements used for the calculation.
Shift to main display screen #2
(see appendix F)
by pressing to see the calculated values.
In display line 2 the value MC= shows the number of measurements used to calculate the mean value.
See appendix F
The display shows both the measured value (raw) and the calculated value (mean)
When in the main display screen #2 press two times to clear the mean calculation.
Enabling this function affects the way the Tag Reader function works.
See appendix E
Calibration Monitor:
(
Calibration factor monitor
)
The build in calibration monitor is used to check the calculated calibration factors against minimum and maximum lim-
its, it can be disabled; this should be done when using the aperture reducer’s as this can result in factors outside the
normal limits, marking the measurements with a calibration warning.
The normal limit checking is designed to be a safeguard against errors in the calibration procedure.
When the Monitor is enabled the icon displays, when disabled the icon displays.
IMPORTANT:
the instrument must be recalibrated whenever changing form normal to reduced aperture and
vice versa.
Remote-Box Display:
(
Select result for extender box display
)
The remote trigger can only display one result at a time, this function selects which result to display on the remote trig-
ger unit, the normal setting would be the primary observation angle of 0.2º or 0.33º
Display Backlight:
(
Control LCD backlight
)
The automatic LCD display backlight function can be disabled. Doing so will allow for more measurements on the
same battery charge, as backlighting consumes lots of energy.
DGPS Mode:
(
Select GPS position correction method
) (Optional)
The GPS receiver can use different methods to obtain greater position precision by using different correction signal
sources.
Depending on the location, different systems can be selected:
WAAS should be used in North America.
EGNOS should be used in Europe.
Auto: should select the best possible available correction signal. However, not all systems may be fully operational or
they may be in test modes. Selecting a wrong correction system might actually reduce the precision.
Disable: Don’t use any correction signals.
