V-1

V-1 voltmeter for DC circuits

V-1 is a compact aircraft-type voltmeter used for measuring voltage in direct current circuits. The instrument provides analog pointer indication and is suitable for onboard, panel or equipment applications where a direct visual reading of DC voltage is required. It is designed for operation in harsh environments, including vibration, shock and wide temperature variation. The device is used as an indicating instrument only; it does not regulate voltage and does not act as a protective relay.

Voltage measurement through V-1

The voltmeter measures DC voltage directly across the connected circuit and displays the value on its scale. The instrument is intended for low-voltage DC systems where the operator needs a clear indication of supply or circuit voltage. Pointer damping limits oscillation and allows the reading to settle within the specified time. Correct operation depends on proper polarity, stable connection, serviceable internal measuring mechanism and insulation condition of the instrument and wiring.

V-1 scale and indication design

The instrument has a wide-angle scale that improves readability in compact panel installations. The pointer moves over a defined scale length and provides direct indication of voltage within the rated range. The small square housing makes the voltmeter suitable for installations where panel space is limited. When replacing the unit, the measuring range, scale layout, mounting dimensions and environmental execution should be checked against the equipment documentation.

Environmental resistance of the V-1 voltmeter

V-1 is designed for operation under vibration and shock loads typical of aviation and special-purpose equipment. The instrument withstands vibration in the specified frequency range and a defined number of shock impacts during testing. It is available in standard and tropical executions, allowing use in different climatic conditions. Insulation resistance requirements are specified for both normal and high-humidity conditions, which is important for reliable operation in aircraft electrical systems.

Identification and ordering of V-1

Before ordering V-1, the full designation, measuring range and execution should be checked against the product passport or equipment documentation. Similar small voltmeters may have the same housing size but different scale ranges, accuracy classes or environmental ratings. For correct selection, provide the equipment type, circuit voltage, required execution, installation panel details and a photo of the existing instrument if available. The product is also known under alternative designations V-1 and В-1.

Product Type: DC voltmeter / analog pointer voltmeter
Function: Measurement and visual indication of voltage in DC circuits
Application / Where Used: Aircraft and special-purpose DC electrical systems
System / Installation Area: DC voltage monitoring circuits / instrument or equipment panel
Measurement Range: 0–30 V
Permissible Basic Error: ±2.0%
Scale Length: 65 mm
Scale Angle: 240°
Damping Time: Not more than 4 s
Operating Temperature Range: −60 to +50 °C
Vibration Resistance: 1.5 g at 20–80 Hz
Shock Resistance: 10,000 shocks with maximum acceleration 4 g at 60–100 shocks/min
Insulation Resistance at 30–80% Relative Humidity: 20 MOhm
Insulation Resistance at 95 ±3% Relative Humidity: 1 MOhm
Execution: Standard and tropical
Overall Dimensions: 47 × 47 × 79 mm
Weight: 0.25 kg
Alternative Designations: V-1; В-1
Technical Documentation: Product passport and technical documentation available upon request

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In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.

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Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.