Casella CEL CEL-281 - Manual (Page 70)

4 PREPARATION FOR USE
As the CEL-281 Dosimeter measures and stores all parameters simulta-
neously, it can be operated using stored or default settings immediately
the batteries have been installed. Apart from clock settings, there are
only three other items that may need setting to match the particular
measurements that are to be undertaken.
These items determine the values that will be used for indicated calibra-
tion level, time weighting, and frequency weighting in the forthcoming
measurement run. However once these settings have been made, they
could well be suitable for a whole series of measurements, so that no
further setting changes need be made when the instrument is next used.
This chapter contains the procedures required to make the following
preparations.
Section 4.1 Switching instrument power ON/OFF,
Section 4.2 Installing and removing the CEL-6012 Keypad,
Section 4.3 Loading batteries,
Section 4.4 Checking batteries,
Section 4.5 Performing a field accuracy check (acoustic
calibration,
Section 4.6 Setting clock functions,
Section 4.6.1 Setting current time and date,
Section 4.6.2 Setting delay times and dates,
Section 4.7 Making preliminary settings,
Section 4.7.1 Setting time weighting,
Section 4.7.2 Setting frequency weighting,
Section 4.8 Starting and stopping data logging,
Section 4.8.1 Start data logging,
Section 4.8.2 Pause data logging,
Section 4.8.3 Stop data logging,
Section 4.9 Wearing the dosimeter.
In the following procedures, when two keys must be pressed at the
same time, make sure they are pressed in the order listed, for example
Preparation
CEL-281 Operator's Handbook - Page 61