AL1 ACOUSTILYZER NTI, AL1 ACOUSTILYZER Datasheet - Page 2

• Manufacturer Part Number: AL1 ACOUSTILYZER
• Description: ACOUSTICAL ANALYSER
• Manufacturer: NTI

Specifications of AL1 ACOUSTILYZER

• Signal Generator Type: Signal
• Bandwidth: 20kHz
• External Height: 42mm
• External Width: 86mm
• External Depth: 163mm
• Sweep Rate Range: 0.5s To 5s
• Lead Free Status / RoHS Status: na

MR2
Analog Audio Signal Generator
Minirator MR2 is a powerful audio generator, offering a full range of useful analog test signals for calibration, maintenance and repair
of professional audio equipment. The rotary settings wheel combined with surrounding fast access function keys enables instant and
intuitive operation without compromising fi ne adjustment capabilities. Instrument operation is further enhanced with a backlit LCD,
illuminated mute button, safety hand strap, jack for external DC power supply and an USB interface for fi rmware updates.
MINIRATOR
Sine Wave, Sweeps, Noise & more
Frequency Resolution to 0.01 Hz
External Power & USB Connector
Backlight for LCD & Mute Key
+8 dBu Max. Output Level
THD+N < -90 dB (0.003%)
Sine Output
MR2 generates extremely pure sine
waveforms at freely selectable frequen-
cies. In addition, sweep signals may be
defi ned within any frequency interval
and with a step resolution as fi ne as
1/12
Pink Noise, White Noise
Pink or White Noise is synthesized with
high spectral density, normal amplitude
distribution and with infi nite cycle dura-
tion. An automated on-off cycle mode
for convenient RT60 measurements
with the Acoustilyzer AL1 is included.
Polarity, Delay
Additional test signals for measuring
speaker- or cable polarity and propa-
gation delays ideally complement the
companion ML1 / AL1 analyzers.
th
of an octave.
The most frequently used parameter
changes such as waveform, level and
frequency are accessible via function
keys. The sensitivity of the rotary wheel
is adjustable with the “sens” key.
The “mute” key is illuminated and
mutes the signal generator output. A
fl ashing backlight indicates the mute
status to the operator.
The typical battery life time is 20
hours. For continuous operation an op-
tional mains power supply is available.
The USB interface enables fi rmware
updates via the NTI website.
External DC & USB Connector
Intuitive Operation
Mute Key
Technical Data MR2 / MR-PRO
Outputs
Inputs
Wave Forms
Wave File Format
(MR-PRO)
Frequency Setting
Stepped Sweep
Function
Continuous Sweep
(Chirp) Function
Level Units
Output Level Ranges
Flatness
Accuracy
THD+N
Output Impedance
Impedance
Measurement
(MR-PRO)
Phantom Power Reading Meas. Range
(MR-PRO)
USB Functionality
Flash Memory
(MR-PRO)
Display
Auto-Power-Off
Batteries
Temperature Range
Humidity
Dimensions (LxWxH)
Weight
Balanced XLR, unbalanced RCA
Phantom power resistant
XLR for cable test (MR-PRO)
DC power supply, USB port
Sine, Pink Noise, White Noise, Polarity test signal
Delay test signal
Wave File playback (MR-PRO)
Sampling freq.: 48 kHz
Resolution:
Output Level:
Range:
Increment:
Accuracy:
Freq. range:
Increment:
Sweep speed:
Freq. range:
Increment:
Chirp speed:
MR-PRO:
MR2:
Wave form
Sine, Sweep, Chirp
White Noise
Pink Noise
Polarity, Delay Test
MR-PRO: ± 0.2 dB MR2: ± 0.5 dB @ RL ≥ 600 Ohm
MR-PRO: ± 0.2 dB MR2: ± 0.5 dB @ 1 kHz
22 Hz - 22 kHz, average, @ 1 kHz, typical
MR-PRO: -96 dB (0.0016%) @ 18 dBu, noise fl oor typ. 15 μV
MR2:
MR-PRO: 12.5 Ohm balanced, Imax = 10 mA
MR2:
Method:
Meas. Range:
Accuracy:
Accuracy:
Firmware update
Mass Storage Device (MR-PRO)
32 MByte
for storing wave fi les and confi gurations
Graphical, with back light
10, 30, 60 minutes or OFF
3 x AA Alkaline dry cells or rechargeable equivalents
Battery Life: MR-PRO: 10 h / MR2: 20 h typical
0° to 45° C (32° to 113° F)
< 90% rel. humidity, non-condensing
MR-PRO:
MR2:
MR-PRO: 310 g (11 oz.) MR2: 250 g (9 oz.) incl. batteries
-90 dB (0.0032%) @ 8 dBu, noise fl oor typ. 25 μV
200 Ohm balanced
152 x 81 x 43 mm (incl. protective shock jacket)
147 x 74 x 41 mm
16 Bit, Mono
0 dBFS = 18 dBu (sine)
according to EBU R68
10 Hz - 20 kHz
in 1 digit steps
0.01%
freely selectable
1/1, 1/3, 1/6, 1/12 octave
selectable, 0.5 - 5 seconds
freely selectable
Linear / Logarithmic
1 - 99 seconds per cycle
dBu, dBV, V, dBFS, %
dBu, dBV, V
Absolute value Z
4 Ohm - 50 kOhm balanced
2 Ohm - 25 kOhm unbalanced
@ f = 30 Hz - 10 kHz (Sine) and
@ Level from -20 dBu to +18 dBu
± 10 % or ± 2 Ohm
0 - 54V
± 3 % or ± 0.5 V
- 80 dBu
- 80 dBu
- 80 dBu
- 80 dBu
Min
Max MR-PRO
+18 dBu
+10 dBu
+16 dBu
+ 8 dBu
+ 8 dBu
+ 6 dBu
- 2 dBu
Max MR2
0 dBu