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OPTICS
Laser Safety Classification
Class 1M per IEC 60825-1:2001
Class 1 per 21 CFR 1040.10 and 1040.11
Output power 2.5mW max.
Wavelength 785nm ± 10nm
Angular spread of laser light from a standard probe tip 28° ± 5°
All specifications include cumulative measurement uncertainties and expected increases in values after manufacture.
TEMPERATURE MEASUREMENT AND CONTROL
Range 5-50°C
Resolution 0.1°C, accuracy ± 0.5°C
Patient isolation (per IEC 601.1 Class 1 type BF)
SIGNAL PROCESSING
Bandwidth: high pass 20Hz
Low pass selectable 3KHz, 15KHz (default), 22KHz
Output time constants: 0.02s, 0.1s, 0.5s, 1.0s, 3.0s
Automatic gain control and zeroing
OUTPUTS/INPUTS
Graphical/digital LCD screen display
40Hz maximum data display rate to 1/min minimum display rate
0-1000 arbitrary perfusion units, percentage change, ‘absolute’ units
2 serial interface RS232 (1 optically isolated)
Analogue outputs 0-10V D/A 12 bit 4 channel (external bus)
Analogue inputs 0-10V A/D 12 bit 2 channel
INTERNAL SOFTWARE FEATURES
Flash memory programmable from PC
Alarm levels and event markers
Trends - data review and time scale compression
500Kbyte battery backed memory
Percentage change and areas
Mean, maximum, minimum values.
Calibration - storage of probe scaling constants
GENERAL
Universal voltage switch-mode power supply range 100 to 230V at 55VA, 50 to 60Hz
Dimensions W H D mm 280 x 160 x 360
Weight 8kgs
Storage and transportation conditions:
Temperature 0-45°C
Humidity 0-80% RH
Atmospheric pressure 500 - 1060hPa
Operating temperature 15-30°C
Electrical safety standards IEC 601-1:
Type of protection against electric shock: Class 1
Degree of protection against electric shock: Type BF
Degree of protection against ingress of liquid: IPXO (not protected)
Degree of protection against flammable anaesthetics. Equipment not suitable for use in the presence of a flammable anaesthetic mixture, with air or with oxygen or with nitrous oxide.
Mode of operation - continuous.
PERFUSION MEASUREMENTS
FLUX
Accuracy: ± 10%, relative to Moor Instruments 'standard' DRT4
Precision: ± 3% of measured value
Range: 0-1000 PU or 0 – 200ml/min/100grams tissue*
CONC
Accuracy: ± 10%
Precision: ± 5%
Range: 0-1000AU or 0 – 10 %*
SPEED
Accuracy: ± 10%
Precision: ± 5%
Range: 0-1000AU or 0 – 10mm/s*
DC
Accuracy: ± 10%
Precision: ± 3%
Range: 0-255AU
PRESSURE MEASUREMENT
Accuracy: ± 2mmHg
Precision: ± 1mmHg
Range: 0-240 mmHg
PRESSURE SETTINGS
Maximum Pressure 0-240mmHg
Deflation Rate 0-10mmHg
Release Time 0-240s
Auto setting of zero pressure
PULSE VOLUME
(An instantaneous value measured from the pulse volume pressure/time graph)
Accuracy: the greater of ± 0.2mmHg or ± 10%
Precision: the greater of ± 0.1mmHg or ± 5%
Range: -2.5mmHg to +2.5mmHg
* Note that the accuracy of absolute flux, concentration and speed outputs are based on the experiments used to derive them and can not be verified independently.