Description
The Ballantine 302C Voltmeter is a highly accurate and reliable instrument used for measuring electrical voltage. With a range of 10 microvolts to 300 volts, this voltmeter offers precision and versatility for a wide variety of applications. Its easy-to-read display and durable construction make it a popular choice among professionals in the electrical and electronic industries. The Ballantine 302C Voltmeter is known for its exceptional performance and exceptional value, making it a valuable tool for anyone in need of accurate voltage measurements.
Specifications
– Measures voltage in the range of 0-300 volts
– Accuracy of +/- 1% of full scale
– Input impedance of 10 megaohms
– Large, easy-to-read analog display
– Compact, portable design
– Powered by two AA batteries
– Includes test leads and carrying case
SKU: BALLANTINE 302C
Category: Voltmeter
Manufacturer: Ballantine
Model Number: 302C
Frequency Range: 2 to 150,000 cps.
Voltage Range: 100 microvolts to 1000 volts in 7 decade ranges. (.001, .01, 1, 1, 10, 100 and 1000 volts full scale)
Accuracy: 3% except 5% below 5 cps, above 100,000 cps, and above 100 volts, at any point on the meter scale
Input Impedance: 2 megohms shunted by 25 pF on the two most sensitive ranges and by 10 pF on the other ranges.
Decibel Range: -80 to +40 decibels referred to 1 volt. Special version Model 302C-S/1 has decibel scale referred to 1 milliwatt in 600 ohms (0.775 volts) and covers range -78 to 42 dbm.
Noise Level: Less than 10 microvolts referred to input circuit. Scales: Logarithmic voltage scale reading from 1 to 10; auxiliary linear scale in decibels from 0 to 20. Each meter is hand calibrated.
Tubes: Five Type 1U4, one Type IR5. All tubes supplied.
Amplifier Characteristics: Maximum voltage gain of 60 DB. Output impedance about 3000 ohms. Maximum output voltage I volt. Flat within 0.5 DB.
Batteries: Four Eveready type 467; Four Burgess type 2F. Battery life 100 hours or more in normal use. Batteries supplied.
Standard Finish: Panel is black Crackle. box and cover black Wrinkle.
Dimensions: 6%” wide, 71⁄2″ high, 12%” long.
Weight: 15 pounds complete with batteries.
Shipping Weight: 20 pounds; rack 28 pounds.
Laboratory Calibration
Micro Precision operates 36 laboratories globally providing reliable localized support
- Certified metrologists staffing laboratories in North America, Central America, South America, Europe, Asia, and the Middle East
- Comprehensive scopes of accreditation to meet a broad range of customer needs
- Expedited calibration services available
- Pickup and delivery services available
- Environmentally controlled facilities to ensure high quality and accurate calibrations and measurements.
Laboratory Calibration
Micro Precision operates 36 laboratories globally providing reliable localized support
- Certified metrologists staffing laboratories in North America, Central America, South America, Europe, Asia, and the Middle East
- Comprehensive scopes of accreditation to meet a broad range of customer needs
- Expedited calibration services available
- Pickup and delivery services available
- Environmentally controlled facilities to ensure high quality and accurate calibrations and measurements.
Quality Certified Test Equipment Repair Services
When a piece of equipment fails you have the option to repair or replace that item. Oftentimes repair is an economical and efficient solution. Micro Precision’s repair offering provides advantages to our customers:
- Cost effective; often less than OEM
- Efficient; often much better turn-time than the OEM
- Flexibility; willingness to work with customers to meet their needs
- Warranted repairs
- Ability to service many obsolete instruments
Quality Certified Test Equipment Repair Services
When a piece of equipment fails you have the option to repair or replace that item. Oftentimes repair is an economical and efficient solution. Micro Precision’s repair offering provides advantages to our customers:
- Cost effective; often less than OEM
- Efficient; often much better turn-time than the OEM
- Flexibility; willingness to work with customers to meet their needs
- Warranted repairs
- Ability to service many obsolete instruments
Cost Effective Test Equipment Options
From the leasing of specialized electronic equipment for a specific task, to the purchase of physical and dimensional tools, we offer leasing services as well as used test equipment sales. We also locate hard-to-find electronics, and provide flexible options to meet ever-changing equipment needs.
Cost Effective Test Equipment Options
From the leasing of specialized electronic equipment for a specific task, to the purchase of physical and dimensional tools, we offer leasing services as well as used test equipment sales. We also locate hard-to-find electronics, and provide flexible options to meet ever-changing equipment needs.
Our Capabilities
Micro Precision can perform instrument calibration services on equipment from variety of applications for specific industries and lines of business. If you have a calibration need that is not listed in this area, please contact us.
Electrical
Micro Precision accredited electrical calibration lab services with multimeter, multifunction calibrator, oscilloscope, and power supply capabilities.
Optical
Micro Precision accredited optical, light, and fiber optic calibration lab services.
Thermodynamics & Chemical
Micro Precision accredited thermodynamic & chemical calibration lab services with temperature, humidity, life science, and pharma capabilities.
RF - Microwave
Micro Precision accredited RF & microwave calibration lab services.
Mechanical & Dimensional
Micro Precision accredited mechanical and dimensional calibration lab services with pressure, torque, force, flow, velocity, and aircraft jack load capabilities.
Laboratory Standards
Calibration laboratory standards are critical for your organization’s most accurate measurements.
Semiconductor Calibration
Micro Precision utilizes state-of-the-art technology to analyze semiconductor wafer thickness and step height.



