SQuadriga (Code 1369)

SQuadriga (Code 1369)
DATA SHEET
SQuadriga (Code 1369)
Mobile four-channel front end with
internal flash memory
Applications
· Mobile measurements
· Quality control
· Sound engineering
· Product development
· Environmental testing
· Research and education
· Troubleshooting
· Technical/field service
Features
· Mobile four-channel front end, also
for stand-alone operation
· Internal flash memory; four-channel
recordings of up to 160 minutes at
48 kHz without compression. The
maximum recording time increases
if the number of channels or the
samling rate is reduced.
· Uninterruptible power supply via
USB, power adapter, or internal
battery
· Aurally accurate recording and
playback
· Four BNC analog inputs (Line/ICP®)
with individual sensitivity adjustment
and ICP® supply
· Compact dimensions (16 x 8.3 cm /
6.3 x 3.3“) and light weight (430 g /
0.95 lb)
ICP 1
ICP 2
Input 1
Input 2
ICP 3
ICP 4
Input 3
Input 4
1369 SQuadriga
Power
· USB interface
· Two electrically isolated pulse inputs
and outputs
· LCD display with clearly arranged
control keys for operation and
configuration
· Real time clock
· Up to six hours of battery-powered
operation with quick recharging and
intelligent battery management
10.2009 D1369e5
Subject to change
is versatile, powerful and extremely
portable making it suitable for a wide
range of applications. SQuadriga’s
compact size, light weight, and internal
flash memory allow it to be easily
carried to wherever the operator needs
to make measurements making it ideal
for mobile use.
The built-in battery allows operating
times between three and six hours,
enabling SQuadriga to work independently even for extensive tasks.
Pulse Phones Headset
Status
· Connectors for the recording and
playback headset BHS I (Code 4822),
the dynamic headphone HD IV.1
(Code 2380), and analog output to
other audio devices
The four-channel front end
SQuadriga
Front view and rear view
Alternatively, the frontend can be
powered with a mains adapter or via
USB from a notebook computer.
Even at a sampling rate of 48 kHz, the
built-in memory card allows fourchannel recordings of at least 160
minutes without compression. Longer
recordings can easily be saved on a
notebook or PC via the USB interface
and with assistance of the recording
software HUS II.1.
Four separate BNC inputs with individual sensitivity settings provide connection possibilities for line or ICP®
sensors. Two electrically separated pulse
inputs allow RPM or speed pulses to be
embedded into the recorded signal.
These data are also available at the
pulse outputs for further applications,
such as for triggering.
For convenient, aurally accurate recordings and playback, HEAD acoustics offers the combined headphone/
microphone headset BHS I (Code
4822). SQuadriga provides the required
connectors for this headset, as well as
for the dynamic headphone HD IV.1
from HEAD acoustics.
The headset connector can alternatively
be used as a two-channel line output.
Standard Delivery Items:
·
The digital signal processor (DSP)
automatically detects which headphone
(headset or HD IV.1) is connected, and
offers the corresponding equalization
options.
·
·
·
·
·
·
·
·
SQuadriga (Code 1369)
Four-channel Front End
HUS II.1 (Code 1319)
HEAD Audio Recorder Software
PSH I.2 (Code 1373)
External Power Adapter
CBL IV.1 (Code 9827)
Cable Pulse-in/-out
CLB IV.1 (Code 9826)
Cable Line out
CUSB II.05 (Code 5478-05)
Cable USB, 0.5 m (20“)
CUSB II.1.5 (Code 5478-1.5)
Cable USB, 1.5 m (60“)
Carry Case
Manual
Optional
·
·
·
·
·
·
10.2009 D1369e5
Subject to change
SQuadriga Headphone Booster
(Code 1369X)
Optional Headphone Amplifier for
SQuadriga
Headset BHS I (Code 4822)
Combined Recording and Playback
Unit
BHM III.3 (Code 1303) Binaural
HEAD Microphone, ICP® Version
HD IV.1 (Code 2380)
Dynamic Headphone
SCA I (Code 1375)
Car Adapter for SQuadriga
HEAD Recorder (Code 4630)
Programmable Recording Software
Technical Data
Analog inputs (4 BNC connectors)
Range (+Headroom):
S/NFS:
+4 dB(V)
90 dB
-6 dB(V)
90 dB
-16 dB(V)
88 dB
-26 dB(V)
87 dB
-36 dB(V)
81 dB
Vrms FS
3,17 V
1,0 V
317 mV
100 mV
31,7 mV
Vss FS
8,97 V
2,38 V
897 mV
283 mV
89,7 mV
S/NFS (A-weighted):
THD+NFS:
91 dB(A)
-69 dB
(0,007%)
92 dB(A)
-74dB
(0,008 %)
90 dB(A)
-74 dB
(0,01 %)
90 dB(A)
-76 dB
(0,01 %)
83 dB(A)
-74 dB
(0,018 %)
Cross-talk attenuation:
> 94 dB
> 93 dB
> 71 dB
> 90 dB
> 92 dB
Input impedance:
12 k
Recording with headset BHS I (optional):
ICP® supply:
-
20 k
20 k
20 k
20 k
124 dBSPL
114 dBSPL
104 dBSPL
94 dBSPL
18 V, 2 mA, activated separately
Headphone output (3.5 mm / 1/8” stereo jack)
Output impedance:
approx. 3 Ohm
Sound pressure with HD IV.1:
max. 96 dBSPL (without headroom)
Short-circuit-proof:
max. 30 seconds
Line output (14-pin Lemo connector)
Nominal output level:
0.5 Veff (without headroom)
Output impedance:
560 Ohm
S/NFS:
77 dB
THD+NFS:
0.01 % (-80 dB) at 1 kHz, -1 dBFS
USB 1.1 in bulk mode, up to 1,5 MByte/s, four-channel recordings with 16 bit/channel, 48 kHz possible, remote control
USB power supply
Operation as USB high-power device:
5 V (+/-10 %), max. 350 mA
Pulse inputs (7-pin Lemo connector)
Pulse frequency:
max. 5 kHz
Input impedance:
36 kOhm, electrically isolated
Input voltage:
TTL-compatible; low level: <1.2 V, high level: >2.4 V
-1 V to + 10 V, max.
Pulse outputs
Level:
3 V (TTL-compatible)
Output impedance:
1 kOhm
Headset BHS I (optional) via 14-pin Lemo connector
Headset connection:
2 microphone inputs, microphone supply, headphone output,
line out
Headset recording:
with headset BHS I: max. 130 dBSPL
Microphone supply:
5 V, typ. 200 µA/channel with BHS I
10.2009 D1369e5
Subject to change
Technical Data (continued)
Headset playback:
Sound pressure MHS II.2: max. 104 dBSPL
Inherent noise:
S/N: 84 dB, 86 dB(A) (with headset BHS I])
THD+NFS:
0.025 % (-72 dB) at 1 kHz (with headset BHS I), at 104 dBSPL FS
Digital section
Signal processor:
Motorola, DSP (100 Mips)
Codec:
Resolution: 24 bit, oversampling: 64 times
Flash memory
Four-channel recordings on internal flash card possible with 16 bit/channel and 48 kHz (max. 160 minutes).
The maximum recording time increases if the number of channels or the samling rate is reduced.
Capacity:
4 GB
Real-time clock:
Accuracy +/- 30 ppm, backup battery up to 5 years
Filter
FIR filter with 100 taps
Analog filters:
2 Hz (+/- 10 %) highpass 1st order, passive (always enabled)
Sampling frequencies
48 kHz; 44,1 kHz; 32 kHz (24 kHz; 22 kHz; 16 kHz; 12 kHz; 11 kHz; 8 kHz as of firmware 1.3 by resampling)
Frequency range:
4 Hz – 20 kHz
Equalizations:
LIN, FF, ID, DF, USER
Power supply
Uninterruptible power supply via USB, external power adapter, or battery; intelligent battery management
Input voltage:
9 V DC (8.5 – 12 V), inverse polarity protection
Charging and operation:
770 mA / 7 W
Trickle charging and operation:
350 mA / 3.2 W
Internal power supply (battery)
Power consumption:
220 mA (typ.), 350 mA (max.)
Charging method:
Quick charging (3 h) and transition to trickle charging, switch-off
with dU/dt; temperature monitoring; charging timer
Operating time on battery:
6 h (typ.) without ICP® supply; 3.5 h (typ.) with ICP® supply
External power supply (mains adapter): 100 – 240 V AC, 9 V DC, 10 W
Dimensions (SQuadriga):
W x H x L: 83 x 35 x 160 mm / 3.3 x 1.4 x 6.3”
Weight (SQuadriga):
430 g / 0.95 lb
Operating temperature range:
Discharging, USB supply: 0 – 50 °C / 32 – 122 °F
Storage temperature range:
Charging: 0 – 40 °C / 32 – 104 °F
-20 – 50 °C / -4 – 122 °F
10.2009 D1369e5
Subject to change
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