DOBLE DFA300 Instrument portabil pentru analiza live a descarcarilor partiale

DFA300 TECHNICAL SPECIFICATIONS

INPUT CHANNEL DESCRIPTION POWER SUPPLY

The DFA300 is a dual function instrument capable of analysing either acoustic or External External DC adapter, 12V @ 2A
RF emissions. There is a single input connection which can accept either a RF or an Supply
acoustic sensor.
DC Adapter 85-264 VAC (47-63 Hz) / 12 VDC
ACOUSTIC EMISSION CHANNEL
Internal Li-Ion, high capacity 7.2V, 6.6 Ah
Inputs 1 channel Battery

Connector BNC Battery Life >6 hours

Charging 3 hours
Input Impedance 50Ω or 22kΩ, software switchable Time
(low noise preamp: 22kΩ only) MECHANICAL

AE Operating Frequency 10 kHz to 500 kHz at -3dB points Instrument 225 x 310 x 70 mm (WxHxD)

8.85 x 12.20 x 2.25 ins (WxHxD)
Phantom Power 28 VDC on BNC centre conductor Weight 2.4 kg / 5.5 lbs
(100mA current limited), software
switchable Transport 425 x 284 x 155 mm (WxHxD)
Case 16.75 x 11.20 x 6.10 ins (WxHxD)
AE Sensor R3α (standard), Weight 3.4 kg / 7.5 lbs
R6α, R6I, R15α R15I (optional) Total Weight 6.0 kg / 13.2 lbs incl. instrument,

UHF CHANNEL transport case, manuals, CD and
charger
Inputs 1 channel
LCD SCREEN
Connector BNC
Display TFT, 6.4” Transreflective
Input Impedance 50Ω
Size (W x H) 132 x100 mm
Bandwidth 50-1000 MHz with 6 MHz RBW
Resolution 640 x 480 pixels, 256 colours
Accuracy ± 100 kHz
Backlight LED
Detection Types Peak and average detector
DATA STORAGE AND TRANSFER
Sweep Processing Continuous, Average, Max Hold and
differential Internal NV Flash Memory (SD)

External USB storage class compliant
ORDERING INFORMATION USB Flash Drive / Hard Disk Drive

Data USB A/B to and from computer
PRODUCT Transfer

Doble DFA300 File Format XML for use with
Complete with transport case, antennas, acoustic sensor, battery charger, neck strap and Doble PDViewer software
wireless synchronization adapter. Software is included. Real Time Battery backed

Clock
ACCESSORIES
CONNECTIVITY
Transient Earth Voltage (TEV) capacitive probe
Find PD in metal-clad switchgear (GIS). To be connected directly on the antenna input USB 1.1 Host and Client
of the DFA300
ENVIRONMENTAL

HF CT Enclosure IP64
Scan for electrical pulses (f<200 MHz) as evidence for partial discharge to earth.
Can be clipped on an apparatus ground wire (incl.transformers and dead tank Transport Case IP67
breakers) and connected to a DFA300.
Electrostatic discharge according to EN 61000-4-2
(N to BNC cable required)
Humidity 0-95% non-condensing
DA100 Directional Antenna
Provides more specific location of RFI sources for substation surveys. Including Temperature Operating temperature:
-10°C to + 50°C / 14°F to 122°F
direction of the emissions.
Storage temperature:
-20°C to + 70°C / -4°F to 158°F