TangoPLUS SLM Class 1

SINUS Tango^Plus Octave Band SLM Class 1

Sound Level Meter + Octaves

The Tango^Plus sound level meter with 1/1 octave analyser is suitable for workplace noise assessments. Due to its intelligent software concept and its measuring range of 110 dB without switching to another range, Tango^Plus is still very easy to operate despite its high functionality.

Tango ^Plus has, based on state-of-the-art circuit technology, a very low power consumption. Two batteries (1.2 … 1.5 V, size AA) guarantee an operation time of 40 h and a storage time of 10 years (for lithium batteries). Therefore Tango^Plus is practically always ready for use. The instrument has a real-time frequency analyser function for 1/1 octave values.

Available as Class 1 or Class 2 with 1/1 octave band analysis according to IEC 61672.

Automatic sound level meter calibration prior to each measurement run significantly increases the measurement accuracy. Tango also retains the calibration values after shut-down.
Its low cost, easy operation and small dimensions make Tango the ideal tool for all users who require an IEC 61672 Class 1 instrument, but do not need to perform frequency analyses or sound signal recordings.

Operating TangoPLUS at the USB interface

The Tango sound level meter also offers operation via the USB interface. In this operation mode the PC will display the measured values and supply the device with power via the interface. For power supply from 230V mains power outlets a USB wall power supply is included in the delivery.
The Tango-Utilities software is included in the delivery for operation and configuration via PC and data transfer . A separate window is provided on the computer screen for easy parameter set-up and transfer of stored values.

Standards

IEC 61672: Class 1 sound level meter

IEC 60651: Class 1 sound level meter

IEC 60804: Class 1 sound level meter

Approvals

Germany – PTB type approval 21.21 / 12.04

Software

Tango-Utilities (included in the delivery)
Combined with a USB interface the Tango-Utilities software provides the ability to retrieve and store the measurement data stored on the instrument and convert them to an Office standard format. Furthermore you are able to create an individual set-up for Tango and transfer it to the instrument (measurement values, storage cycles, percentiles).

Technical Specifications

Accuracy
Class 1 or Class 2 according to IEC 60651 / 60804 / 61672

Calibratability
PTB type approval 21.21 / 12.04

Measuring range
30 … 140dB (A)

Measurement values

• Sound pressure level L_AF, L_AS
• Maximum sound level L_AFmax, L_ASmax
• Continuous sound level L_Aeq
• Peak level L_Cpeak
• Sound dose L_AE
• 3x peak level exceedance duration L_{Cpeak_exceedance}
• Time / measurement time / exceedance duration
• Optional: 3x percentiles L_AFn

Frequency weightings
A + Cpeak

Time weightings
Fast, Slow

Measuring range
30 to 140dB (L_Aeq)
60 to 143dB (L_Cpeak)

Resolution
0.1dB

Display

Backlit LCD:

• Measured value with 3.5 digits
• Bar graph in 5-dB steps
• < Undercut, > overload
• Measurement time (hh:mm:ss)
• Battery state of charge
• Storage state

Microphone
1/2″ measuring microphone, permanently polarized, removable

Calibration
Automatically to 94dB (104/114dB selectable)

Storage cycles
Individually and freely selectable for all measurement values from 62.5ms … 60min

Storage capacity
Up to 194 days depending on selected storage cycle

Interface
USB

Batteries
2 x AA type (1.2 … 1.5V), all battery models may be used

Operating time per battery set
> 120h

Battery storage period
10 years (Lithium battery)

Dimensions
190mm x 70mm x 32mm

Weight
250g (incl. batteries)