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FCC COMPLIANCE AND CAUTIONARY NOTE:
User is cautioned that changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
-- Consult the dealer or an experienced radio/TV technician for help.
INTRODUCTION
The QUEST M-27 Noise Logging Dosimeter is a microcomputer-based sound analyzing
instrument for accumulating, displaying, and sending data to serial or parallel printers or computers. The
M-27 functions as a personal noise dosimeter, an area monitor or as a survey events monitor (see Figure 1).
Personal Noise Dosimeter:
Accumulates noise data for OSHA hearing conservation, OSHA
engineering controls, and equal energy noise dosimetry. Accumulates peak and maximum levels.
Accumulates 1-minute histograms and 1 dB statistical distributions. Is housed in a secure dust-
proof case. May be clipped on belt or shirt pocket.
Area Monitor:
Accumulates 40 hours of 1-minute histograms and statistical
distributions. May be tripod-mounted.