4. X/Y button to set required grade axis, then +/- button to adjust the %
value.
In fact, it is often better to use the Remote Control rather than the
instrument's keypad, because, then you do not disturb the laser's sensitive
mechanism.
FRD400R Detector...
Fit the supplied 9V battery, polarity marked. Power-up via red ON/OFF button.
The middle button switches the sounder ON or OFF, & volume - if required
The right hand button sets coarse (+/-2mm) or fine (+/-1mm) red pick-up
window resolution.
A rear LCD repeats the main front display.
Note the set-level case markings & notches.
You can use the detector with or without its staff mounting bracket.
Detector Procedure – face towards rotating laser & "find" the rotating laser
beam via the pick-up window.
If the sun is low in the sky & shining into the red window, shield it with a
cupped hand to prevent false readings. Positioning the FRE-208 itself in full
sun is no problem, but the detector window can in some instances, be
affected by direct bright sunlight or reflections. So please take extra care!
SAFETY PRECAUTIONS:
Comply with class 3A laser operating safety procedures.
Display a Laser Safety Notice in the work area.
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