Hardware Specification OR34

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General description

The following specifications concern the OR34 analyzer. OR34 consists of a 3-Series hardware containing optional inputs and processing modules, a PC with an Ethernet interface and NVGate® software with optional plug-in analyzers.

Modules

The following tables detail the complete performances of OR34 hardware. Optional or standard modules may fill the described slots.

Front-end Dynamic analog inputs 2 slots of 2 inputs (BNC)
Dynamic analog outputs 1 output (BNC)
Externals sync 2 trigger/tachometer inputs (BNC)
Processors Trigger / tachometer / monitoring 1 DSP
PC communication / recording 1 DSP
Computation power 1 DSP
Miscellaneous Remote control 1 with RS232 cable connection (RJ11)

Case

Mechanicals

Weight

1.4 kg (3 lb)

Dimensions

Case (w.h.d) 45 mm x 205 mm x 154 mm ( 1.8 in x 8.1 in x 8.8 in )
Overall (w.h.d) 54 mm x 215 mm x 163 mm ( 2.1 in x 8.4 in. x 6.4 in )

Power supply

Power

< 15 VA

External AC Power supply

Voltage 100 to 240 VAC
Frequency 47 to 63 Hz
DC Range

0 V to 28 V

Overload protection 31 V (over this voltage DC poles are short-circuited)
UPS (Uninterrupt-ible Power Supply) Type Internal NiMh battery (No memory effect)
Protection against power supply loss or failure 15 min.

Environmental / Compliance with standards

CE Indicates compliance with EMC Directive 89/336/EEC and Low Voltage Directive 73/23/EEC
Safety EN 61010-1 June 2001 Safety requirements for electrical equipment for measurement, control and laboratory use.
Over-voltage Category II (Local level mains, appliance, and portable equipment)
Pollution Degree 2: Do not operate in environments where pollutants may be present.
EMC Emission EN 50081-1 Generic emission standard: Residential, commercial and light industry.
EN 50081-2 Generic emission standard: Industrial environment.
IEC 61326-A: 2002 Electrical equipment for measurement control and laboratory use EMC requirements. Industrial locations
CISPR 22 Radio disturbance characteristics of information technology equipment. Class B limits.
FCC Rules Complies with the limits for a Class B digital device.

EMC Immunity

EN 50082-1 Generic immunity standard: Residential, commercial and light industry.
IEC 61326-1 Electrical equipment for measurement control and laboratory use EMC requirements.
EN 50082-2 Generic immunity standard: Industrial environment.
Linear input response range on interference Max slew rate on input: 5 V/ µs
Materials ROHS 2011/65/EU
WEEE 2002/96/CE – 2003/108/CE
Temperature Operating 0°C to 50°C (32°F to 122°F)
  Storage -20°C to 65°C (-4°F to 149°F)
  Absolute maximum ratingii -35°C to 70°C (-31°F to 158°F)
Humidity Max 93 % RH at 40°C non-condensing
Shock Complies with IEC 68-2-27
Operating 100 m/s² (11 ms, ½ sine) and 700 m/s² (3 ms, ½ sine)
Storage 200 m/s² (11 ms, ½ sine) and 1 000 m/s² (3 ms, ½ sine)
Absolute maximum ratingii 1 000 m/s² (3 ms, ½ sine)
Vibration Complies with IEC 68-2-6
Operating 20 m/s², 5-500 Hz, 5mm
Storage 25 m/s², 5-500 Hz, 5mm
Absolute maximum ratingii 30 m/s², 5-500 Hz, 5mm
Bump Complies with IEC 68-2-29
Storage 1000 bumps in each direction (6) at 400 m/s², 6 ms
Enclosure

Type

IP 40

Radio frequencies sensibility

  Input measured with 50 Ω terminator
Radiated RF: 80-1000 MHz, 80% AM 1 kHz, 10 V/m < 20 µV
Conducted RF: 0.15-80 MHz, 80% AM 1 kHz, 10 V < 100 µV
Magnetic field: 30 A/m, 50 Hz < 2 µV

Front-end

Dynamic inputs

Sampling

Frequencies
(Additional decimators allow analysis bandwidth down to 0.8 Hz)
102.4 kHz, 65.536 kHz, 51.2 kHz, 37.768 kHz, 25.6 kHz,
16.384 kHz, 12.8 kHz, 8.192 kHz, 6.4 kHz, 5.12 kHz, 4.096 kHz,
3.2 kHz, 2.048 kHz
Converters One 24 bit 'sigma-delta ADC' for each input
Frequency relative precision 0.5 10-4 (typical 1 10 –5)
Synchronization All inputs synchronized on the same sampling clock

Anti-aliasing filter

Type Over-sampled digital filters
Slope > 400 dB/octave
Pass band ripple < 0.003 dB
Rejection of parasites bands > 110 dB (@ frequency > 0.57 x FS)
Effective bandwidth 0.43 x FS (ex: 23.2 kHz @ 51.2 kS/s)

Range (peak)

With amplifier (included) ±17.5 mV, ±31.6 mV, ±60 mV, ±100 mV, ±175 mV, ±316 mV, ±600 mV, ±1 V, ±1.75 V, ±3.16 V, ±6 V
Direct ±10 V

Absolute accuracy

Resolution 24 bits (144 dB)
All input ranges at 1 kHz ±0.05 dB (typical ±0.015 dB)
Temperature variability < 0.1 dB / 10°C

DC offset

For ranges from ±1 V to ±10 V < ±0.15 % of full scale
For ranges below ±1 V < ±1 mV



Frequency flatness and phase response
Includes channel to channel match with different gains
10 V range, 0 to 20 kHz ±0.02 dB / ±0.02 °
10 V range, 20 to 40 kHz ±0.05 dB / ±0.05 °
175 mV to 6 V ranges, 0 to 20 kHz ±0.02 dB / ±0.1 °
175 mV to 6 V ranges, 20 to 40 kHz ±0.10 dB / ±0.5 °
17.5 mV to 100mV ranges, 0 to 10 kHz ±0.05 dB / ±0.3 °
17.5 mV to 100mV ranges, 10 to 20 kHz ±0.1 dB / ±1 °
17.5 mV to 100mV ranges, 20 to 40 kHz ±0.4 dB / ±3 °

Cross-talk

Between N (N is odd) and N+1 inputs:  
@ 1 kHz: < -112 dB, @ 20 kHz: < -86 dB, @ 40 kHz: < -80 dB
Between any inputs excluding: N (N is odd) and N+1 inputs:
@ 1 kHz: < -122 dB, @ 20 kHz: < -96 dB, @ 40 kHz: < -90 dB

Signal to noise ratio

With 50 Ω terminators:
10 V range, 40 kHz bandwidth: > 100 dB, spurious lines < -115 dB of full scale
10 V range, 20 kHz bandwidth: > 104 dB, spurious lines < -125 dB of full scale

Input noise

With 50 Ω terminators  
Thermal input noise 20 nV/VHz
17.5 mV range 20 kHz BW < 3 µV rms, 40 kHz BW: < 4.2 µV rms
100 mV range 20 kHz BW < 3 µV rms, 40 kHz BW: < 4.2 µV rms
1 V range 20 kHz BW < 5.4 µV rms, 40 kHz BW: < 8.5 µV rms
10V range 20 kHz BW < 44 µVrms, 40 kHz BW: < 70 µV rms

Impedance

  1 MΩ ±1%, < 100 pF

Coupling

AC

DC

 
ICP 4 mA power supply with AC coupling
ICP + TEDS ICP with reverse current for TEDS reading
AC and DC float Independent ground references for each input within the current input range
GND Shortcuts input poles to the ground

Protection

On any inputsii ±60 V peak without damage

TEDS

Standards

IEEE 1451.4 2001 revision 1

Templates Accelerometer/Force meter (25)
Microphones (27, 28 and 29)
Dynamic Spectral domain > 120 dB

Dynamic outputs

Sampling Converters One 24 bits DAC for each output
Synchronization Same sampling clock as the dynamic inputs

Range

Direct ±10 V peak
With attenuator (included) ±1 V peak
Clipping User selectable in the output range
Digital gain From 10-5 to 103
Absolute accuracy Resolution 24 bits (144 dB)
All output ranges at 1 kHz ±0.05 dB
Temperature drift < 0.1 dB / 10°C
Frequency response Variation relative to 0 dB at 1 kHz
All ranges, at 10 kHz ±0.05 dB
All ranges, at 20 kHz ±0.15 dB
All ranges, at 40 kHz ±0.8 dB
Noise floor level 10 V range, 20 kHz bandwidth 110 dB of full scale, spurious lines -125 dB of full scale
10 V range, 40 kHz bandwidth 105 dB of full scale, spurious lines -125 dB of full scale
1 V range, 20 kHz bandwidth 99 dB of full scale, spurious lines -110 dB of full scale
1 V range, 40 kHz bandwidth 94 dB of full scale, spurious lines -110 dB of full scale

Impedance

Impedance 50 Ω

Current

Max  ±10 mA

Protection

Sum of injected + generated voltages ±15 V peak, On any outputii
Permanent short circuit supported

Total harmonic distortion

THD @ 1 kHz < 0.002% or -94 dB at 20 kHz BW
THD @ 5 kHz < 0.005% or -86 dB at 20 kHz BW

Cross-talk

Output 0 dBV to 50 Ω terminated input

Lower than measurable noise

External sync

Sampling

Frequencies 64 times over-sampling of the current input sampling
(up to 6.4 MHz)
Converters High speed voltage comparator and time counter
Range (peak) Direct ±300 mV, ±1 V, ±3 V, ±10 V
threshold Amplitude precision ±1 % of range
Setting Hystersis 1% (of input range) to input range
Hold off 0 s to 500 s
Slope Rise or fall
Hardwired pre-divider From 1 to 255
Time resolution   > 160 ns (0.06° at 1kHz and 1.2 ° at 20kHz)
Pulse rate Max 375k pulse/s
Coupling AC Cut-off frequency 0.35 Hz ±10% (analog filter)

DC

 
Impedance   1 MΩ, < 100 pF
Protection on any external syncii ±60 V peak without damage

Digital computation

The following table details the optional DSP modules that can be added to OR34 hardware to fit analysis mode calculation needs.

SPUs

SPU (Signal Processing Units): the following table gives the characteristics of each analysis mode and the associated SPU consumption. For multi-analysis purpose, add the corresponding SPUs of each mode used simultaneously and increase the sum by 10%. "Real-time" means that the analysis speed is faster than the input rate and does not miss any sample.

FFT Real-time FFT analysis with;
401 lines (for 801, 1601,3201, 6401 lines multiply requested SPU respectively by 1.25,1.5, 2, 3)
20 kHz bandwidth (Requested SPU are proportional to bandwidth)
0% overlap
1 channel processing = 1 SPU
1/n Octave Real-time filter based 1/n octave analysis with:
1/3rd octave resolution (for 1/12th and 1/24th octave multiply SPU respectively by 2 and 4)
20 kHz bandwidth (Requested SPU are proportional to bandwidth)
1 channel processing = 3 SPU
Order analysis Real-time order spectrum analysis (re-sampled time signal) with:
Max order / order resolution = 800
Max RPM x Max order = 1 200 000 (requested SPU is proportional to max RPM)
1 channel processing = 3 SPU
Recorder Gap free recording with:
51.2 kHz sampling rate
1 channel processing = 1 SPU

Computation DSPs modules

Type

Sample size 32 bit floating
Computation words 32/40 bits
Memory 4 MSamples
Power Computation capability 12 SPU / DSP module

Computation DSP module / OR34 unit

Minimum

1 Computation DSP module

SPU

Maximum 2 Computation DSP modules

SPU

Notes

The above specifications describe all the guaranteed capacities and performances of the instrument and are applicable to an OR34-4 hardware, powered for more than 15 minutes, at a stabilized room temperature of 23°C ±5°C and calibrated since less than one year.

The adapted control software NVGate® is described separately.


i Prepared for future use: the related specifications or options are in development.

ii Exceeding absolute maximum ratings damages the system and voids guarantee.