Radiation Alert CHARGER User manual

RADIATION ALERT®
CHARGER
Operation Manual
MADE IN USA
WARRANTY
ELEMENTS OF WARRANTY: This limited warranty covers all materials and
craftsmanship in this product to by free from defects for a period of one year
with only the limitations or exclusions set out below.
WARRANTY DURATION: This warranty shall terminate and be of no further
effect one year after the original date of purchase of the product or at the
time the product is: a) damaged or not maintained as is reasonable or
necessary, b) modified, c) repaired by someone other than warrantor for a
defect or malfunction covered by this Warranty, or d) used in a manner or,
purpose for which the instrument was not intended or contrary to the written
instructions. This warranty does not apply to any product subject to
corrosive elements, misuse, abuse, or neglect.
STATEMENT OF WARRANTY: In the event that the product does not
conform to this warranty at any time while this warranty is effective, the
Warrantor will repair the defect and return the instrument to you prepaid,
without charge for parts or labor.
NOTE: While the product will be remedied under this warranty without
charge, this warranty does not cover or provide for the reimbursement or
payment of incidental or consequential damages arising from the use of or
inability to use this product. The liability of the company arising out of the
supplying of the instrument, or its use, whether on warranties or otherwise,
shall not in any case exceed the cost of correcting defects in the instrument,
and after the said one year period, all such liability shall terminate. Any
implied warranty is limited to the duration of this written warranty.
PROCEDURE FOR OBTAINING PERFORMANCE OF WARRANTY:
In the event that the product does not comply to this warranty, please
contact your local distributor.
NOTE: Before using this the instrument, the user must determine the
suitability of the product for his or her intended use. The user assumes all
risk and liability connected with such use.
SERVICE & REPAIR
Should your instrument ever need servicing, please contact your local
distributor. If you have further questions contact the address below.
S.E. INTERNATIONAL, INC. Tel: [phone]
P.O. Box 39 Fax: [phone]
436 Farm Rd. e-mail: [email protected]
Summertown, TN, USA 38483-0039

BASIC OPERATION
The Radiation Alert Charger (fig. 1) is used to zero a variety of quartz or carbon
fiber dosimeters. The Charger controls the movement of the hairline fiber
inside the dosimeter. When the fiber is on zero, the dosimeter is fully
charged/zeroed. It is powered by a piezoelectric generator. The CHARGER
requires absolutely no batteries.
To charge a dosimeter you simply squeeze the lever a few times. If the fiber
passes zero and is still visible, a discharge button allows the operator to
discharge the dosimeter and set it exactly on zero. The clamp is adjustable
and self-locking and automatically holds the dosimeter for you. By squeezing
the trigger, you can easily position a dosimeter into or remove it from the
charger.
POSITIONING THE DOSIMETER IN THE CHARGER.
1. Hold the charger upright as shown in fig. 1. Lift the clamp and pull it back
to the approximate length of the dosimeter. Place the dosimeter in the clamp
with the recessed end (opposite the lens) over the charging contact. This
allows for the electrical contact between the dosimeter and the Charger.
2. While squeezing the trigger and push the clamp against the lens end of the
dosimeter and release the trigger. Important: If the clamp is not pushed
against the lens end of the dosimeter before releasing the trigger, electrical
contact may not be adequate to charge the dosimeter. DO NOT PUSH TOO
HARD. You may damage the dosimeter.
3. Check that the position of the dosimeter provides a good view of the scale
through the lens. Refer to fig. 2
CHARGING THE DOSIMETER
4. With the dosimeter locked in place, look through the dosimeter at a light
source such as a light bulb, window or a small flashlight to view the scale
shown in fig. 3.
5. Squeeze and release the charging lever until you see the fiber appear on
the scale. The fiber appears from the right of the scale and moves towards
zero. Once you see the fiber, partial squeezes of the charging lever will be
enough to control its movement. If the dosimeter is not responding, repeat
step 2.
If the fiber has traveled to the left of zero but is still visible, push the discharge
button until the fiber is on zero. If the fiber is not visible, repeat Step 5.
6. To remove the dosimeter, squeeze the trigger, lift the dosimeter to just above
the end of the clamp. Pull dosimeter straight back to disengage it from the
charging contact. If your dosimeters are all the same length, you should not
have to adjust the clamp as described in steps 1 and 2. The length setting of
the clamp will not change unless the clamp is manually adjusted.
NOTE: The ideal operating range for the charger is between 40-60% relative
humidity. If operation occurs outside of these specific conditions, you may
notice the fiber move away from zero (discharge) at faster rate. In this case,
once the dosimeter is fully charged, remove it immediately from the charger and
recheck it to make sure the fiber is on zero.
trigger
lens
charging
contact
dosimeter
Charging
lever
discharge
button
clamp
0 50 100 150 200
MILLIROENTGENS
fiber
left right
Fiber moves right to left during charging
Figure 1
Figure 2 Figure 3