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±100nVdc to ±10Vdc
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±10ppm Absolute Accuracy
Max. Current: 100mA
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DC Voltage Source/Calibrator

Features
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.
One Year Warranty

Options
Option 003: Provides both front and rear panel terminals for instrument outputs. Only one output set of terminals may be used at one time.
Option 004: Provide CE regulation safety terminals.
Rack Mount Kit: Part number RK-314 permits installation of the Model 511 into a 19” rack spacing.
Extended 1 Year Warranty: Part No. EX511

Related Models
> Model 511 - ±10ppm 100nVdc to 10Vdc
   Model 521/RA5 - ±20ppm 100nVdc to 1000Vdc
   Model 522 - ±20ppm 100nVdc to 100Vdc
   Model 523 - ±4ppm 100nVdc to 100Vdc
   Model CR103 - 100nVdc to 10Vdc
 

DESCRIPTION
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.

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

OUTPUT
Specifications apply at 23ºC ±1ºC, <70% relative humidity.

Temperature Coefficient, ±(ppm of setting + µV)/ºC:

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.

GENERAL
Calibration Interval: 1 year for ±10ppm accuracy.
Warm-Up Time: 1 hour to rated accuracy.
Isolation: Floating 500V from chassis.
Protection: Will drive a short-circuit indefinitely.
Temperature:

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.
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.

OPTIONS
Option 003: Provides both front and rear panel terminals for instrument outputs. Only one output set of terminals may be used at one time.
Option 004: Provide CE regulation safety terminals.
Rack Mount Kit: Part number RK-314 permits installation of the Model 511 into a 19” rack spacing.
Extended 1 Year Warranty: Part No. EX511

OPTIONAL ACCESSORIES
CAB-005: Cable, Two Conductor Shielded Balance Line
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.

Copyright © April 21, 2006 Krohn-Hite Corporation. All rights reserved.