Fluke Biomedical 06-912 - Manual (Page 7)

Operation
To Charge (Zero) the Dosimeter
2
2-1
Section 2
Operation
2.1 To Charge (Zero) the Dosimeter
IMPORTANT-IF THE DOSIMETER HAS A CAP
OVER THE CHARGING CONTACT END,
REMOVE IT!
1. Press the dosimeter charging contact lightly into the charger contact to illuminate the internal
scale.
2. Press firmly until the dosimeter "hairline" responds to adjustment of the zeroing knob by
moving smoothly up and down scale. Maintain pressure on the dosimeter. Adjust the position
of the hairline to zero. For low-range dosimeters (<10R), the hairline may have to be placed
to the left of zero to compensate for the "kick" to the right when contact is broken. Slowly
relax the pressure on the dosimeter, and remove it from the charger.
3. Adjustment may be checked by lightly pressuring the dosimeter into the charging contact to
illuminate the scale, or by simply looking through the eyepiece toward an external light
source. Re-zero as required.
2.2 Reading the Dosimeter
1. Point the charging-contact end of the dosimeter toward an external light source. Read the
scale through the eyepiece.
2. If no external light source is available, place the dosimeter on the charging contact, and press
lightly to illuminate the scale.
3. Read the dosimeter. If you have to re-zero the dosimeter, follow the procedure in Section 2.1.
NOTE