MULTISPAN AVF-133 - User Manual

The Multipsan AVF-133 is a 3-Phase VAF (Voltage, Amperage, Frequency) Meter designed for industrial and commercial applications to monitor electrical parameters.

Function Description

The AVF-133 provides real-time measurement and display of voltage (line-to-neutral and line-to-line), current (per phase and average), and frequency. It also indicates phase sequence, load hours, and RPM. The device supports various wiring systems including 3-phase 4-wire, 3-phase 3-wire, and 1-phase 2-wire configurations. It features a clear 3-digit, 6-line, 7-segment 0.36" red LED display for easy readability. Key operations allow users to navigate menus, increment/decrement values, and save settings. LED indicators provide visual cues for various parameters like A, kA, VLL, VLN, Avg, and PS (Phase Sequence).

Important Technical Specifications

Display, Key & LED:

Display: 3 Digit, 6 Line, 7 Segment, 0.36" Red LED.
Key: Menu, Increment, Decrement, Scroll.
LED Indication: A, kA, VLL, VLN, Avg, PS.

Environmental Conditions:

Working Temperature: 0 to 55°C.
Storage Temperature: 0 to 55°C.
Relative Humidity: 95% RH Non-Condensing.
Protection Level: IP-65 (Front side as per IS/IEC 60529: 2001).

Dimension:

Size (mm): 96 (H) x 96 (W) x 55 (D) mm.
Panel Cutout: 92 (H) x 92 (W) mm.

Input:

Voltage AC (Direct Voltage AC): 30 to 300V (L-N), 50 to 500V (L-L).
Burden (Voltage): < 0.2 VA.
Current AC (Primary CT Ratio): 5 to 10000 Selectable.
Current AC (Secondary Current AC): 0.5 to 5 Amp.
Burden (Current): < 0.2 VA.
Overload: Up to 6A Continuous.
Frequency: 45.0 to 65.0 Hz.

Calculated Parameters:

Voltage: VLL, VLN, Avg.
Current: All Phase Amp, Avg Amp.
Frequency: System Frequency.
Phase Sequence: Indication.
Load Hour: Up to 9999 Hr 59 min.

Accuracy:

Class 0.5 (Standard).

Auxiliary Power Supply:

Power Supply: 100 to 270V AC, 50/60Hz.
Burden: 4VA.

Usage Features

Features:

Separate display for Amp indication.
Wiring System: 3Ø-4W, 3Ø-3W, 1Ø-2W.
Load Hour, RPM, Phase sequence by LED indication.

Key Operation:

Enter Parameter Setting Mode: Press the "Menu" key.
Operator Mode (Change Page): Press the "Scroll" key.
Parameter Setting Mode (Increment Value): Press the "Increment" key.
Parameter Setting Mode (Decrement Value): Press the "Decrement" key.
Set Parameter Value, Save & Exit: Press the "Menu" key.
Scroll & Hold: Press and hold the "Scroll" key.

Parameter Setting:

CT Ratio Selection & Network Connection: Press "Menu" and "Scroll" keys together. Users can set the primary CT ratio (5 to 10000) and select the network type (3-phase 3-wire, 3-phase 4-wire, or 1-phase 2-wire).
Reset Load Hour: Press "Menu" and "Scroll" keys together.
Load Hour & RPM: Press "Menu" and "Increment" keys together to view or enable/disable load hour and RPM functions.
Percentage: Enable/disable and set percentage values (5-50).
Pole: Enable/disable and set pole values (1-28).

Installation Guidelines:

The equipment is designed to be built-in and typically becomes part of a main control panel.
Ensure proper panel cutout dimensions (92x92 mm).
Avoid installing near heating sources, caustic vapors, oil steam, or other by-products.
Use specified M3.5 crimp terminals for wiring, tightening screws to 1.2 N.m.
Do not connect anything to unused terminals.
A circuit breaker or mains switch must be installed between the power source and the supply terminal for ON/OFF function, placed conveniently accessible to the operator.
Use and store the instrument within the specified ambient temperature and humidity ranges.

Wiring Guidelines:

Safety Precaution: Always turn OFF power supply before wiring. Do not touch terminals when power is supplied.
Use wires with adequate rating and twists of equal size for shortest connection to reduce electromagnetic interference.
Cables for power source connection must have a cross-section of 1mm² or greater and insulation capacity of at least 1.5kV.
Standard power supply cables are recommended for better anti-noise effect.

Maintenance Features

Maintenance:

Regularly clean the equipment to prevent blockage of ventilating parts.
Clean the equipment with a clean, soft cloth. Do not use isopropyl alcohol or any other cleaning agent.
The fusible resistor must not be replaced by the operator.

Safety Precaution:

All safety-related codifications, symbols, and instructions in the manual must be strictly followed.
Improper handling may impair the protection provided by the equipment.
Read complete instructions prior to installation and operation.
WARNING: Risk of electric shock.