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Specifications
Megohmmeter DB640
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RESISTANCE
MEASUREMENTS:
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Range:
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10 kOhm to 1 POhm
(dependent on test Voltage)
(Peta = 1.000.000 Giga)
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Accuracy:
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Rx< 20 GOhm x
Vtest: ± 2% of value
Rx> 20 GOHM x
Vtest: ± Vtest/1pA in Ohm,
max reading Vtest/0.1pA
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DC CURRENT
MEASUREMENTS:
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Range:
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1 pA to 1 mA
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Accuracy:
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±2% of value ±1pA
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DISPLAY READING
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Direct :
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3,5 digits up to 40
channels R or I
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Single Channel Bar
Graph:
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8 ranges with 2
decades per graph with fixed- or autoscaling
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Single Channel x
– y Graph:
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Current or
resistance scale versus time scale
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INPUT RESISTANCE:
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10 kΩ for
I-test> 10nA
Programmable 10 kOhmmor
1 MOhm for I-test< 10nA
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TEST VOLTAGE
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DB601 Range:
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10 V to 1000kV in 1
V steps
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| DB602
Range |
10V
to 500V in 1V steps |
| DB604
Range |
50V
to 5kV in 1V steps |
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Accuracy:
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±2% of value or ±1
Volt in un-calibrated mode
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Stability:
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±10 ppm / degree C
±10ppm for 10% change in line voltage
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| DB604:
50V to 5000V in 1V steps |
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Source Resistance:
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100
Ω
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| DB604:
3,3kΩ |
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Max currents:
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Measurement: 2 mA
Charging: 25 mA (pass word protected)
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| DB602:
precharge: 100mA |
| DB604:
4mA |
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Switching:
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Manually ON/OFF
from front panel or controlled by a built-in timer, or by remote
control.
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TIMING:
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Programmable Fast
Charging:
0 to 9999 msec (charge resistance 200 Ohm)
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Programmable
Measurement delay:
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0 to 9999 msec
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Discharge Time:
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t = 0.1 x Cx (in µF)
with Vtest decreasing to 1 % of test level
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| DB604
Discharge Resistance: 100kΩ |
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MEASURING SPEED:
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Trig Mode:
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One Measurement:
<52 msec (excl. charging)
Average up to n = 100measurements: <52 + (N-1) x 40 msec (excl.
charging)
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Continuous Mode:
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Direct Reading: 90
to 4000 msec depending on average
Bar Graph: Display update every 52 msec
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LIMITS:
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5 built-in
programmable limits on resistance or current
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STANDARD FITTED
INTERFACES:
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IEEE 488: (IEEE
488-1 and 2)
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"Talker
Only" and "Talker/Listener" Modes. True sub-set of
Standard protocol
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RS232C:
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Baud rate up to
9600 Baud. Full two-way control/output
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Control I/O:
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Optocoupler input /
output 25 V/10mA. Trig, Measure END Signal, Trig Ready Signal,
Data Ready Signal, Fault Signal, Limit Outputs
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Ambient
Temperature:
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10 to 40 degrees
Celsius
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Power:
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90 – 130 and 200
– 260 V AC 50 – 60 Hz
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DIMENSIONS:
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Height:
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140 mm/ 5.5 inch
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Width:
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438 mm/ 17.2 inch
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Depth:
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360 mm/ 14.2 inch
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Weight:
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14.9 kg/ 32.8 lbs.
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ACCESSORIES
SUPPLIED:
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Line power
connector, Two 1.5 m coax cables with H.T. BNC connectors
Brackets for 19" rack-mounting, Manual in English
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Options:
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Item number
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Higher measure
current and / or charge
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Fixture for axial
and radial components:
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Fixture for SMD
components requires Jig 600
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Test probe with
trig contact:
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© December 2001,
Danbridge A/S ALL SPECIFICATIONS SUBJECT TO CHANGES WITHOUT PRIOR
NOTICE
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