Accuracy
Class 1 – Model 41, Model 43, Model 45
Class 2 – Model 42, Model 44, Model 46
Applicable Standards
IEC 61672-1:2013 Class 1 or Class 2, Group X
IEC 60651:2001 Type 1 I or Type 2 I
IEC 60804:2000 Type 1 or Type 2
IEC 61252:1993 Personal Sound Exposure Meters
ANSI S1.4 -1983 (R2006), ANSI S1.43 – 1997 (R2007)
ANSI S1.25:1991
1:1 Octave Band Filters to IEC 61260 & ANSI S1.11-2004
Microphone
Class 1 PM1 pre-polarized
Class 2 PM2 pre-polarized
Microphone Preamplifier
PA40 Removable Preamplifier
Measurement Range
20dB -140dB RMS Single Range (143dB peak)
Noise Floor
<18dB(A) Class 1, <21dB(A) Class 2
Time Weightings
‘F’ (Fast), ‘S’ (Slow) & ‘I’ (Impulse) all measured simultaneously
Frequency Weightings
RMS & Peak: A, C, & Z (un-weighted) all measured simultaneously
Frequency Bands
10 1:1 Octave Bands: 31.5Hz to 16kHz
Integrators
Three simultaneously measuring “virtual” noise meters.
Integrator 1 is preset to Q3 for Leq functions.
Integrators 2 & 3 can be configured with:
Exchange Rate: 3, 4 or 5dB
Threshold: 70dB to 120dB (1dB steps)
Time Weighting: None or Slow
Criterion Level: 70dB to 120dB (1dB steps)
Criterion Time: 1 to 12 hours in 1 hour steps
Integrator Quick settings (pre-set)
EU, OSHA HC & OSHA NC, OSHA HC & ACGIH, MSHA HC & MSHA EC, Custom 1 & Custom 2
Ln Statistical Values
14 independent statistical Ln values calculated from 1/16th LAF
7 are preset to L1.0, L5.0, L10.0, L50.0, L90.0, L95.0 & L99.0
7 user defined Ln values
Time History Data Rates (Global settings)
10ms, 62.5ms, 125ms, 250ms, 1/2 sec, 1 sec, 2 sec (user selectable)
Language options
English, French, German, Italian, Spanish as standard
NB. Other language options will be available.
Batteries
6 x AA
Battery life
Typically 30 hours with Alkaline AA
Typically 50 hours with Lithium AA
Rechargeable battery life depends on type and screen brightness
External power
5v-15v via Multipin I/O socket
Weight
440g without batteries
Size
280mm x 80mm x 42mm with preamp and microphone
Connections
USB 2.0 Mini-B to PC
AC output via 3.5mm Stereo jack
AC & DC output via Multipin I/O socket
Tripod Mount
1/4” Whitworth socket
Case
Die cast aluminium with silicon elastomer keypad and soft touch back
Display
High resolution anti-glare OLED display
Ambient light sensor
Illuminated keypad
Supplied Accessories
Windshield, Wrist Strap, USB Download Cable, AnalyzerPlus software, AA Batteries
Environmental
Operating Temperature: -10°C to +50°C
Storage Temperature: -20°C to +60°C
Humidity: Up to 95% RH Non-Condensing
Electromagnetic performance
IEC 61672-1:2013 & IEC 61672-2:2013
Except where modified by EN 61000-6-1:2007 & EN 61000-6-2:2007
Logging and Storage
Memory: 4GB removable memory card
Audio Note Recording: A spoken note (up to 30 seconds) attached to measurements
Audio Recording: Manual, 48kHz/32bit WAV format
Measurement Control
Record and store data over fixed times: 1 min, 5 min, 10 min, 15 min, 30 min, 1 hour, Lden
Automatic Synchronisation & Repeat options
Pause
Back Erase with user selectable duration (via AnalyzerPlus software)
Standard Measurement Parameters
Model 41 & Model 42:
Lxy, Lxy Max, Lxy Min
Time, date & duration of measurement
Extra measurement and stored functions available
Model 43 & Model 44:
Lxy, Lxy Max, Lxy Min
Lxeq, LCPeak, LZPeak, LAPeak, LCeq-LAeq, LxE, LAIeq
Graph of Short LAeq, LCPeak
Time, date & duration of measurement
Extra measurement and stored functions available
Model 45 & Model 46:
Lxy, Lxy Max, LxyMin
Lxeq, LCPeak, LZPeak, LAPeak, LCeq-LAeq, LxE, LAeqT
Graph of Short LAeq, LCPeak
Measurement Run Time
Integrators 2 & 3: TWA, Dose %, Est Dose %
Real-Time 1:1 Octave Bands (Graphical & Numeric)
14 Statistical Values (Ln)
Stored Parameters – Model 45 & Model 46
LxyMax & Time History of LxyMax
LAeq, LCeq, LZeq, LCPeak, LZPeak, LAPeak, LAIeq
Time History of LAeq, LCeq, LZeq, LCPeak, LZPeak, LAPeak, LAIeq
Integrators 2 & 3: LAVG , TWA. % Dose
Time History of LAVG
1:1 Octave Bands: Overall Leq & Leq Time History for each band
Ln Values: 14 independent statistical values
Audio recording during measurement
Time, date & duration of measurement
Where x means the three frequency weightings A, C and Z and y means the three time weightings ‘S’ (Slow), ‘F’ (Fast) and ‘I’ (Impulse). All weightings simultaneously measured where appropriate.
Other functions may be calculated by the AnalyzerPlus software.
First Direct Arena –
The ability to comply with Noise at Work Regulations is an essential requirement for a venue such as ours. From the start, we wanted to invest in a trusted brand and a meter that would offer us the right specification and the latest technology to help us achieve compliance. We chose the Nova sound meter from local company Pulsar Instruments plc which meets all our key requirements and we are delighted with its performance.
Independent Environmental Consultancy (IEC) –
Independent Environmental Consultancy (IEC) regularly updates its noise monitoring kit. When it came to purchasing a new real-time octave band analyser which could be used for workplace and environmental noise measurements, we opted for the Pulsar Nova Model 45 noise measurement kit. The kit is constantly in use and is a favoured by our consultancy team due to its ease of use, reliability and impressive functionality – a sound choice.
HARIBO –
The Nova is a fantastic piece of equipment. It allows me to take quick readings and produce the relevant reports and make PPE comparisons easily. As well as saving me considerable time, the clear, real-time screen lets me show and explain to the staff the noise readings in their area as it happens. This is the best tool I have had in cultivating a positive attitude in the staff toward managing their own noise exposure and wearing the hearing protection correctly.
Dakat Limited –
In the past, I’ve used other meters that would have required at least 30 minutes for all of the measurements, but because of the Nova 45’s ability to measure simultaneously, the whole process was completed within the 10 minute window, thus saving me and the client time while allowing the show to go on!