Multispan AV-V Series Digital Voltmeter | 30–500V AC | 3-Digit LED Display | Panel Mount
Multispan AV-V Series Digital AC Voltmeter – AV-11V / AV-21V / AV-31V / AV-41V
Compact Class 0.5 digital AC voltmeters with 3-digit LED display and 30–500V AC range, available in multiple panel sizes for control panels, switchgear, and OEM boards.
The Multispan AV-V Series—models AV-11V, AV-21V, AV-31V, and AV-41V—are compact, high-accuracy digital AC voltmeters for industrial panels. With a 3-digit LED display, a 30–500 V AC input range, Class 0.5 accuracy, and IP65 front protection, these meters are suitable for power distribution boards, generator panels, and OEM control cabinets.
Key Features
Wide Voltage Range: Measures 30–500V AC for low- and standard-voltage panels
High Accuracy:Class 0.5 for reliable voltage indication
Fast Sampling:1500 samples/sec with approx. 1.4s response time
Clear Display:3-digit, 0.56" 7-segment red LED
Wide Auxiliary Supply: Works on 100–270V AC/DC
Low Power Consumption: Only 2–3 VA depending on model
Panel Protection:IP65 front for dust and splash resistance
Multiple Sizes: Four panel formats to suit different cutouts
Rugged Build: ABS body with PC front, suitable for industrial environments
Technical Specifications (Table)
| Parameter | Specification |
|---|---|
| Series Models | AV-11V, AV-21V, AV-31V, AV-41V |
| Measurement Type | AC Voltage |
| Voltage Range | 30–500V AC |
| Display | 3-digit, 0.56" red 7-segment LED |
| Accuracy Class | Class 0.5 |
| Sampling Rate | 1500 samples/sec |
| Response Time | ~1.4 seconds |
| Auxiliary Supply | 100–270V AC/DC |
| Power Consumption | AV-11V/21V: 3 VA, AV-31V/41V: 2 VA |
| Front Protection | IP65 |
| Build Material | ABS body with PC front |
| Mounting | Panel mount with rear clamps |
| Panel Sizes | AV-11V: 101×101×43 mm (Cutout: 92×92 mm) |
| AV-21V: 75×75×36 mm (Cutout: 68×68 mm) | |
| AV-31V: 51.5×98×26 mm (Cutout: 46×92 mm) | |
| AV-41V: 52×52×45 mm (Cutout: 45×45 mm) |
Applications
Electrical distribution and feeder panels
Generator, DG, and UPS monitoring panels
HVAC electrical cabinets and utility panels
Switchgear and transformer control panels
OEM machine and control panel manufacturing
What’s in the Box?
1 × Multispan AV-V Series Digital Voltmeter (selected model)
Panel mounting clamps/brackets
Basic wiring and installation leaflet
Warranty and support information
FAQ
Q1. What voltage range does the AV-V Series measure?
It measures AC voltage from 30V to 500V.
Q2. Are there functional differences between AV-11V, 21V, 31V, and 41V?
Functionality is the same; models differ in panel size and cutout dimensions.
Q3. Can these meters be used in 230V AC control panels?
Yes, they are suitable for standard 230V AC and other AC systems within the 30–500V range.
Q4. What is the auxiliary supply requirement?
All models work on 100–270V AC/DC with a low VA burden (2–3 VA).
Q5. Is the display visible in bright industrial environments?
Yes, the bright red 3-digit LED offers good visibility in typical panel-room lighting.
Q6. Is the front side protected against dust and moisture?
Yes, the front offers IP65 protection when properly mounted with a gasket.