AVF-19N Multispan
Multispan AVF-19N 3-Phase AVF Digital Multifunction Meter
Panel-mounted 96×96 mm digital AVF meter for single- and three-phase systems, measuring voltage, current, frequency and basic power parameters with programmable CT ratio and IP65 front protection.
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The Multispan AVF-19N is a compact, panel-mounted digital multifunction meter for single- and three-phase systems. It provides accurate monitoring of voltage, current, frequency, and basic power parameters, with a programmable CT ratio, flexible wiring options, and IP65 front protection for reliable use in industrial control and distribution panels.
Key Features
Multifunction Measurement: Monitors voltage, current, frequency and power parameters
Wide Voltage Input Range: 50–500V AC (L–L), 30–300V AC (L–N)
CT Programmable: CT ratio adjustable up to 6000/5A from the front keys
Flexible Wiring: Supports 3Ph-4W, 3Ph-3W and 1Ph-2W systems
Clear LED Readout: 3-digit/line 0.56” red LED display
Wide Current Input: 0.5–5A AC (direct or via CT)
Standard Power Supply: 230V AC, 50Hz
Front IP65 Protection: Dust- and splash-proof front as per IS/IEC 60529:2001
Standard Panel Size: 96 × 96 mm body with 92 × 92 mm panel cutout
Auto/Manual Scrolling: Selectable parameter scan with 5-second auto scan option
Technical Specifications (Table)
| Parameter | Specification |
|---|---|
| Model | AVF-19N |
| Display Type | 3-digit/line, 0.56” red LED |
| Measured Parameters | Voltage, Current, frequency, and basic power parameters |
| Voltage Input Range | 50–500V AC (L–L), 30–300V AC (L–N) |
| Current Input Range | 0.5–5A AC (direct) / via CT up to 6000/5A |
| CT Ratio | Programmable from front keys (up to 6000/5A) |
| Power Supply | 230V AC, 50 Hz |
| Wiring Systems | 3Ph-4W, 3Ph-3W, 1Ph-2W |
| Front Protection | IP65 (as per IS/IEC 60529:2001) |
| Panel Cutout | 92 × 92 mm (H × W) |
| Overall Size | 96 × 96 mm front (approx. depth per model) |
| Accuracy Class | Class 0.5 (typical multifunction meter accuracy) |
| Display Mode | Auto-scroll / Manual selection via front key |
| Auto Mode Scan Time | Approx. 5 seconds per parameter |
Applications
Main and sub-feeder electrical control panels
Power distribution boards in commercial and industrial setups
Industrial automation systems requiring AVF monitoring
Infrastructure/utility metering for load monitoring
OEM panel manufacturing for standardised multifunction metering
What’s in the Box?
1 × Multispan AVF-19N Digital Multifunction Meter
Panel mounting clamps/hardware
Quick wiring and configuration leaflet
Warranty/support information
FAQ
Q1. What CT ratios can be configured on AVF-19N?
The AVF-19N supports CT ratios up to 6000/5A. For primary currents above 975 A, the display shifts to kA mode.
Q2. Can I use AVF-19N for single-phase as well as three-phase systems?
Yes. It supports 1Ph-2W, 3Ph-3W, and 3Ph-4W wiring, making it suitable for both single- and three-phase applications.
Q3. How do I switch between Auto and Manual display modes?
Press and hold the front key for about 3 seconds, then release to toggle between Auto and Manual mode. In Auto mode, parameters scroll every ~5 seconds.
Q4. What voltage range can the meter measure?
It measures 50–500V AC (line-to-line) and 30–300V AC (line-to-neutral).
Q5. Does AVF-19N require an external CT?
For currents above 5A, an external CT is required. You can program the CT ratio from the front panel.
Q6. Is the front suitable for dusty or humid environments?
Yes, the front is rated IP65, providing protection against dust and low-pressure water jets when properly installed.