2
Description
Noise Monitoring Terminals Type 3639 are a range of powerful NMTs optimised for remote, unattended,
environmental noise measurements, which:
• Regularly check the calibration of the measurement chain, including the outdoor microphone
• Measure noise with the outdoor microphone in compliance with IEC 61672 Class 1 specifications
• Process noise and associated data
• Store the results of up to several months of monitoring
• Transmit data via RS–232, LAN, router, or modem, to a database on a central computer
The NMT is a component of an unattended noise monitoring system. The main purpose of the system is to
monitor environmental noise from airports, construction sites, industries and transport, and in areas
either where noise is high (noise hot spots) or in quiet areas where noise is a major concern. A typical
system, for example for airport-noise monitoring, would consist of several NMTs, a central computer
system and a number of workstations.
The NMT consists of a weatherproof cabinet containing a noise level analyzer and a battery, with a back
plate for pole or wall mounting, and an outdoor microphone to be mounted on a mast, pole or tripod.
Additional accessories such as a GPRS Router, GSM modem, weather station and a GPS satellite
positioning system, can be added to the NMT (see Fig. 1).
Fig. 1
Overview of the noise
monitoring terminal
and its accessories
NMT PLUS Type 3639-E or
NMT ADVANCED Type 3639-G
Includes:
– Wall/Pole Mounting
Kit UA-1685
– Outdoor Microphone 4952
(NMT 3639-E)
– Weatherproof Microphone 4184
(NMT 3639-G)
– Battery QB-0065
– Battery Charger (built-in)
– Auxiliary DC Cable AO-0649
– USB Cable AO-1480
(NMT 3639-E/G-200 series)
– LAN Cable to Ext. PC AO-0679
– Auxiliary Mains Cable AN-0074
– Microphone Cable
AO-0414-D-100 (NMT 3639-E)
– Microphone Cable
AO-0028-D-100 (NMT 3639-G)
Options:
– Weather Station MM-0256 (6 param.)
– Weather Station MM-0316 (2 param.)
– GPS Receiver ZZ-0249
(requires GPS Software BZ-7845)
– PSTN Modem ZM-0070
– GSM Modem ZM-0071
– GPRS Router ZM-0073
– Environmental Noise
Management System 3642
– Sound Calibrator 4231
– ANOMS
– Event Analysis Software BZ-7844
(NMT 3639-E)
– Battery QB-0065
– Battery Charger ZG-0453
(for charging QB-0065 outside
the NMT)
– Tripod UA-0587 for microphone
– Tripod Adaptor DB-4024
– Tripod UA-1690 for NMT
– Outdoor Camera WQ-2837
– Low-temp. Operation Modification
– Solar Panels
External PC
Outdoor Microphone
4952
Weather Station
MM-0256 or MM-0316
Modem (PSTN or GSM)
/GPRS Router
Radio Link
(via modem)
or cable
Microphone Cable
AO-0414-D-100
External DC
Power
Optional Setup:
Auxiliary
Mains Cable
AN-0074
Auxiliary
DC Cable
AO-0649
NMT PLUS 3639-E
NMT ADVANCED 3639-G
050304/3
Auxiliary
Mains Cable
AN-0074
Auxiliary
DC Cable
AO-0649
Modem (PSTN or GSM)
/GPRS Router
Radio Link
(via modem)
or cable
Microphone Cable
AO-0028-D-100
Weatherproof
Microphone
4184
GPS Receiver
ZZ-0249
Tripod UA-0587
Tripod
UA-1690
Camera
WQ-2837
