Casella-cel CEL-310 Manual do Utilizador descarregar pdf (Página 20)

4. OPERATION

Practically all procedures for measuring noise dose require that the

measuring device be calibrated both before and after the measurement !

It is also recommended that the current configuration be checked

(see Section 2.5) to ensure that it is suitable for the proposed

measurement task. If the configuration is not suitable, change it before

commencing calibration or operation, as described in Chapter 3.

4.1 Automatic Calibration

With Dose Badge internal batteries charged as described in Section 2.3

and batteries installed in the Reader Unit

(Section 2.4), calibrate all Dose Badges to be

used for the proposed measurement task as

follows.

1. Carefully insert the Dose Badge into

the calibrator cavity in the top panel

of the Reader, as shown in Figure 5.

Make sure the Dose Badge is firmly

in contact with the shoulder near the

bottom of the cavity.

Also make sure the infrared window

in the Dose Badge is facing the

window in the top panel of the

Reader so that effective

communication will be possible.

2. Press to switch the Reader ON.

3. Wait for the status screen to be

displayed, then press to initiate

an automatic calibration sequence.

Cal

C-01

Calibrating . . . .

Battery condition

Calibration progress

03022

Figure 5: Dose Badge

installed in the calibration

cavity with infrared

windows aligned for

communication

Operation

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Casella-cel CEL-310 Manual do Utilizador Página 20