$199.99 Buy It Now or Best Offer
free,30-Day Returns
Seller Store arg-tech
(10211) 99.6%,
Location: Goffstown, New Hampshire
Ships to: US,
Item: 186660253062
All returns accepted:ReturnsNotAccepted
Ballantine Labortories:Ballantine Labortories
MPN:420
Ballantine Laboratories 420 AC/DC Precision Calibrator Description Good Condition Powers up and works. DC output was checked with a multimeter and AC signal output was checked with an oscilloscope. The rotary mV switch and division button switches work fine. The vernier dial for fine tuning is erratic and the potentiometer likely needs to be cleaned. This is a vintage item. It was tested at time of listing and shown to be in the condition described above. However, due to the age of this item, we cannot guarantee continued functionality and it is being sold “as-is” with no returns. What’s Included: 1x Ballantine Laboratories 420 AC/DC Precision Calibrator Does not include any additional cables, parts, or accessories. Unlock the full potential of your voltmeters, oscilloscopes, and other voltage-sensitive devices with the Model 420 Precision Calibrator. Designed for both laboratory and field use, this robust and reliable calibrator delivers precise DC and AC signals from 0 to 10 volts with exceptional accuracy (up to ±0.5%). Specifications: Precision Calibrator Model 420 Specifications Available Outputs DC, RMS, and AC peak-to-peak selectable by function switch. Each of the three outputs covers: 0 to 10 volts in four ranges: 0-10 millivolts 10-100 millivolts 0.1 to 1 volt 1 to 10 volts Corresponding to decade settings: -1000, -100, -10, and +1 respectively. Accuracy (without corrections) ±0.5% on all ranges. A small residual output occurs which affects the accuracy by a slight amount below 1 millivolt. A calibration chart accompanies each instrument to calibrate to within ±¼% accuracy. Stability Long-term accuracy is maintained for at least 3,000 hours of continuous or intermittent operation. Short-term drift is less than ±0.03% per hour after warm-up. Line voltage variation of ±10% will affect accuracy by less than 0.15%. Warm-Up Time 15 minutes. Change less than 0.2% after the first 15 minutes. Dial Setting Resolution Maximum: 1 part in 50,000. Minimum: 1 part in 5,000 at upper and lower ends, respectively. Accuracy: ±0.2% for all outputs above 1 millivolt. Below 1 millivolt, the resolution is 0.2 microvolt. AC Output Characteristics (rms and peak-to-peak) Frequency: 1000 cps ±1%. Harmonic content: <0.25% Hum content: <0.25% Residual output for 1-10 mV range: <1 µV rms. Ambient temperature influence: <0.01% per degree C. Internal Impedance & Minimum Permissible Load Resistance on Outputs Voltage Range Internal Impedance (Ohms Approx.) Minimum Load Resistance (Ohms) 0-10 mV 4 0 10-100 mV 4 0 0.1-1 V 8 100 1-10 V 18 5,000 DC Output Characteristics Residual output for 1-10 mV range: <20 microvolts. Ambient temperature influence: <0.01% per degree C. Internal resistance: 4000 ohms approx. at maximum dial settings; proportionately less for lower dial settings. Power Supply Voltage: 115/230 volts, 50-420 cps, 35 watts. Payment Payment via PayPal is expected within 2-days after the winning bid.We only accept bids from US bidders with confirmed PayPal addresses and only accept PayPal as the form of payment. Returns Items sold as New, Tested and/or Working may be returned within 30 days of receiving if you are not satisfied with your purchase. Restocking fee may apply. Buyer is responsible for return shipping costs. Please review all photos carefully as they are part of the description per eBay policy. Shipping ARG-Tech directly only ships to the United States. All international shipments are processed through eBay's Global Shipping Program. We take pride in packing items carefully to ensure safe arrival. We ship promptly, usually same or next day after PayPal confirmation. If you have any special requirements or questions regarding shipping, please contact us before buying. Our business hours are Monday - Friday 7AM-4:30PM EST Thanks for viewing! Please check out our other items!
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