HP Hewlett Packard 400EL Wideband AC Voltmeter 1mV-300V 10Hz-10MHz Vintage
Product Information
Brand: Hewlett-Packard / HP
Model: 400EL
MPN: 400EL
Type: Wideband Analog AC Voltmeter
Display: Analog Meter
Measurement: AC Voltage / RMS calibrated
Voltage Range: 0.001 V to 300 V RMS
Frequency Range: Approx. 10 Hz to 10 MHz
dB Range: -60 dB to +50 dB
Input: Front BNC
Outputs: Rear AC Output / DC Output
Power: 115 / 230 VAC selectable
Condition: Tested and working
Serial Number: 1208A27600
Country of Manufacture: USA
Description
For sale is a vintage Hewlett-Packard HP 400EL Wideband AC Voltmeter.
The HP 400EL is an analog laboratory AC voltmeter designed for measuring low-level through high-level AC signals over a wide frequency range. It is useful for audio, communications, electronics laboratory, service, calibration and vintage test-equipment applications.
The front panel provides multiple voltage ranges from 0.001 V through 300 V, along with a decibel scale from approximately -60 dB to +50 dB. The analog meter is marked R.M.S. VOLTS – Average Responding.
Historical HP documentation identifies the 400EL as an analog logarithmic AC voltmeter covering approximately 10 Hz to 10 MHz and 1 mV to 300 V RMS.
This unit also features rear-panel AC and DC outputs and provisions for battery-powered operation.
Specifications
Manufacturer: Hewlett-Packard
Brand: HP
Model: 400EL
MPN: 400EL
Instrument Type: Analog AC Voltmeter
Measurement Type: AC Voltage
Response Type: Average Responding, RMS Calibrated
Frequency Range: Approx. 10 Hz to 10 MHz
Voltage Ranges: 0.001 / 0.003 / 0.01 / 0.03 / 0.1 / 0.3 / 1 / 3 / 10 / 30 / 100 / 300 V
dB Range: -60 dB to +50 dB
Reference: 1 mW / 600 Ω shown on meter scale
Input Connector: BNC
AC Output: Rear BNC
DC Output: Rear Binding Posts
AC Line Input: 115 / 230 VAC ±10%
Line Frequency: 48–440 Hz
Maximum Power: 10 VA
Fuse: 125 mA T
Battery Supply Provision: 35–55 VDC
Serial Number: 1208A27600
Made In: USA
Condition: Tested and working
Included
1 × Hewlett-Packard HP 400EL AC Voltmeter
Power cord, probes, test leads and other accessories are NOT included unless specifically shown in the photos.
Condition:
USED – Tested and Working
The unit has been tested and is working properly.
The analog meter responds correctly, and the unit powers on and operates as expected.
Cosmetic wear is present from previous use and age, including scratches, marks, discoloration, and label residue.
No recent professional calibration has been performed, so calibration accuracy is not guaranteed.
Please review all photos carefully for the exact physical condition, configuration, connectors, and included items.
Used Hewlett-Packard HP 400EL AC Voltmeter. Tested and working. Unit powers on and operates properly. Shows normal cosmetic wear from previous use and age. No recent professional calibration has been performed. Sold exactly as pictured. Please review all photos carefully for condition and configuration.
Item Specifics
Brand: HP / Hewlett-Packard
Model: 400EL
MPN: 400EL
Type: AC Voltmeter
Current Type: AC
Display: Analog
Voltage Range: 1 mV to 300 V
Frequency Range: 10 Hz to 10 MHz
Maximum Voltage: 300 V RMS
Minimum Voltage: 1 mV RMS
Connector Type: BNC / Binding Posts
Power Supply: 115/230 VAC
Country/Region of Manufacture: United States
Condition: Tested and working
Serial Number: 1208A27600
Ecotech RDR is a professional resale and recycling company specializing in industrial, electronic, and commercial surplus equipment.
We have many items available.
The more you buy, the better price we can offer.
Feel free to contact us with any questions or reasonable offers.
Please review all photos carefully before purchasing.
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