Model 511 - Krohn-Hite Corporation
“Quality” in Test and Measurement Since 1949
Model 511
DC Source/Calibrator
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Absolute Accuracy: ±10ppm
Voltage Range: ±100nVdc to ±10Vdc
Resolution: 1ppm of Range
Wideband Noise: <5µVrms
3 Voltage Ranges
Max. Current: 100mA
Impedance: 10µ ohm all ranges
Floating Output
Certified to N.I.S.T.
DESCRIPTION
SPECIFICATIONS
Continuing with Electronic Development’s (EDC) tradition, the
NEW Krohn-Hite Model 511 Precision DC Source/Calibrator is a
secondary standard that is highly stable and repeatable from
±100nVdc to ±10Vdc, providing N.I.S.T. traceable voltages for
use in production, calibration labs, QA and QC departments,
design labs, or any place where an accurate voltage is needed.
OUTPUT
Using Krohn-Hite’s state-of-the-art reference, the 511 provides
extremely accurate (±10ppm) and stable (±2ppm for 24 hours)
voltages over 3 ranges, allowing the output to be set from
±100nVdc to ±11.11110Vdc with a resolution of 1ppm of range.
The Model 511 is an extremely quiet source with <5µV of noise
measured from 0.1Hz to 100kHz. Maximum load current is
100mA on all ranges.
RANGES
The 511 also provides 3 voltage ranges, ±100mV, ±1.0V and
±10V allowing the user to set the output from ±100nVdc to
±11.11110Vdc.
Resolutions are 100nV, 1µV and 10µV
respectively.
APPLICATIONS
The Model 511 can be used in many applications including the
calibration of precision A/D converters, strip chart recorders and
calibration of Kaye Instruments Data Logging Systems.
Specifications apply at 23ºC ±1ºC, <70% relative humidity.
Absolute Accuracy
±(ppm of
setting + µV)
Range
(dc)
Full Scale
(dc)
Resolution
(dc)
1Year
100mV
±111.1110mV
100nV
10 + 2
1.0V
±1.111110V
1µV
10 + 6
10V
±11.11110V
10µV
10 + 42
Above specifications include stability,
line regulation and load regulation.
Noise and Ripple:
Range
0.1Hz-10Hz
10Hz-100kHz
100mV
2µVp-p max.
5µVrms
1V
2µVp-p max.
5µVrms
10V
2µVp-p max.
10µVrms
Max.
Load
Zo
100mA
10µ
ohms
Above specifications include stability,
line regulation and load regulation.
Krohn-Hite Corporation, 15 Jonathan Drive, Unit 4, Brockton, MA 02301
Tel: 508-580-1660; Fax: 508-583-8989; www.krohn-hite.com; email: sales@krohn-hite.com
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511Data.vp v2-12
DC Source/Calibrator
Model 511
Temperature Coefficient, ±(ppm of setting + µV)/ºC:
0ºC to 10ºC
3+2
10ºC to 40ºC
2+1
Stability:
24hrs, ±(2ppm of setting + 1µV).
1 year, ±(10ppm of setting + 2µV).
Settling Time: 100ms max., typically 60ms.
Load Regulation (all ranges): ±1µV for a change from no
load to full load.
Line Regulation (all ranges): ±(1ppm + 1µV of range) for
a ±10% change from normal line voltage.
SAFETY
The Model 523 is designed to meet the requirements of the
following standards of safety for electrical equipment for
measurement, control and laboratory use: IEC61010-1,
EN61010-1.
ELECTROMAGNETIC COMPATIBILITY
Emissions and Immunity: EN61326-1, EMC, 61000-4-2;
ESD, 61000-4-3; Radiated Immunity, 61000-4-4; EFT,
61000-4-5; Surge, 61000-4-6; Conducted Immunity,
61000-4-8; Magnetic Immunity, 61000-4-11; Voltage
Interuption EN61010-1.
CE Compliant for Class B
Equipment.
OPTIONS
GENERAL
Calibration Interval: 1 year for ±10ppm accuracy.
Option 003: Provides both front and rear panel terminals
for instrument outputs. Only one output set of terminals
may be used at one time.
Warm-Up Time: 1 hour to rated accuracy.
Option 004: Provide CE regulation safety terminals.
Isolation: Floating 500V from chassis.
Protection: Will drive a short-circuit indefinitely.
Rack Mount Kit: Part number RK-314 permits installation
of the Model 511 into a 19” rack spacing.
Temperature:
Extended 1 Year Warranty: Part No. EX511
Calibration
23ºC ±1ºC.
OPTIONAL ACCESSORIES
0ºC to 50ºC.
Accuracy is de-rated above 40ºC due to
loss of oven control.
CAB-005: Cable, Two Conductor Shielded Balance Line
Operating
Storage
-30ºC to 70ºC.
Power Requirements: 105-125 or 210-250 volts ac,
single phase, 50Hz-400Hz, 20 watts.
Dimensions: 3.5” (9cm) high, 14” (36cm) wide, 12.5”
(32.1cm) deep.
CAB-018: Cable, Multi-stacking Double Banana plug
CAB-023: Cable Set, Low Thermal EMF Retractable
Banana
CAB-024: Cable Set, Low Thermal EMF Spade Lug
Specifications are subject to change without notice.
Weight: 12 lbs (5.4kg) net; 14 lbs (6.3kg) shipping.
Controls: Six decade rotary switches with indicator knobs
from 0 to 10 and 10% over-range; 3 position range and
polarity rotary switches; push-button power on, sense and
ground switches.
Indicators: LEDs indicate voltage range, power on and
overload.
Terminals: Output terminals are safety, low thermal, gold
plated type, mounted on the front panel. Terminal sets are
configured for remote sensing of the output as follows:
High Output and High Sense
Low Output and Low Sense
Case Ground
Output terminals conform to European Standard
Specifications.
Krohn-Hite Corporation, 15 Jonathan Drive, Unit 4, Brockton, MA 02301
Tel: 508-580-1660; Fax: 508-583-8989; www.krohn-hite.com; email: sales@krohn-hite.com
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511Data.vp v2-12
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