Figure 2-7. Inserting the Dosimeter Into the Charging Socket
Step 2. Hold the dosimeter firmly in the charging socket. Tighten the chuck by rotating it
clockwise until the dosimeter is held securely in the charging socket.
Step 3. Hold the charger (with the dosimeter installed) so that the window is pointed toward a
good source of light (Figure 2-8). A flashlight is a good field expedient.
Figure 2-8. Holding the Charger With Dosimeter to a Light Source
Step 4. Look into the viewing end of the dosimeter and observe the calibrated scale. Turn the
charging knob clockwise until the dosimeter reading is zero (indicating fiber on 0). If the indicating fiber
goes to the left of zero, rotate the charging knob back and forth or turn it counterclockwise until a zero
reading on the calibrated scale is obtained (Figure 2-9, page 2-8).