ADDENDUM
(MICRO-15)
1.)
The convenience of a latching Sound Level Key means hands free
updating of the display with the current sound level. Simply press any
other key to deactivate this function.
2.) To speed operation and assure single touch response, the
keyboard is now scanned by the microprocessor 16 times per second
rather than the previous once per second.
3.)
The ease of calibration has been enhanced by the use of an algorithm
for small magnitude changes. The algorithm had been averaging over a
one second period. The new algorithm averages small magnitude
changes over a 63 msec period.
4.)
The overload time threshold has been changed from 115 dB Peak to 115
dB RMS.
5.)
The code for switch settings is displayed automatically on the LCD
startup. This serves to confirm the proper set up of the unit and is a quick
opportunity to assure tampering did not occur during the last operation.
08/10/89
INTRODUCTION
The Quest MICRO-15 Noise Dosimeter (Figure 1) is a multifunction sound
analyzing instrument that is housed in a convenient hand-size package. It
provides information as basic as any dosimeter and may also be used as a
sound level meter, an integrating sound level meter and an exposure meter. It
has capabilities far beyond the requirements of most users.
This manual begins with a brief outline of operating instructions and then
expands into a complete analysis explanation. The user is advised to review the
entire manual to assure proper use of the MICRO-15. However, the simplified
instructions will provide basic instructions.
SIMPLIFIED OPERATING INSTRUCTIONS
This section is intended as a brief introduction to the MICRO-15. See the
appropriate section in the manual for a more detailed description of various
functions.
To operate the controls, loosen the single screw on front of unit and remove
front cover.