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.
Range |
Full Scale |
Resolution |
Absolute Accuracy ±(ppm of setting + µV) |
| 1 Year |
| 100mVdc |
±111.1110mVdc |
100nVdc |
10 + 2 |
| 1.0Vdc |
±1.111110Vdc |
1µVdc |
10 + 6 |
| 10Vdc |
±11.11110Vdc |
10µVdc |
10 + 42 |
Above specifications include stability, line regulation and load regulation. |
Noise and Ripple
Range |
0.1Hz - 10Hz |
10Hz - 100kHz |
Max. Load |
Zo |
100mV |
2µVp-p max. |
5µVrms |
100mA |
10µ ohms |
1V |
2µVp-p max. |
5µVrms |
10V |
2µVp-p max. |
10µVrms |
Above specifications include stability, line regulation and load regulation. |
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.
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:
Calibration |
23ºC ±1ºC. |
Operating |
0ºC to 50ºC.
Accuracy is de-rated above 40ºC due to loss of oven control. |
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.
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.
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