Selec Vaf36 Meter(Not Working)

What is the Selec VAF36 Meter?

Selec VAF36 is a digital multifunction panel meter used extensively in electric panels to measure Voltage (V), Amperes (A), and Frequency (F). It’s part of the VAF family from Selec, which provides easy-to-read displays and simple wiring capabilities for instantaneous energy monitoring. It’s small, panel-mounted, and can support single-phase or three-phase systems.

⚠️ Common Issues When VAF36 Meter Stops Working

If your Selec VAF36 meter is not working, it may be for the following reasons:

1. No Display or Dead Screen
Cause: Power supply failure or loose terminal connections.

Solution: Check incoming voltage (usually 80-300V AC/DC) at terminals. Check for blown fuses or power loss.

2. Incorrect Readings
Cause: Incorrect CT/PT ratio settings or reversed current transformer polarity.

Solution: Double-check CT wiring and configuration settings on the meter.

3. Buttons Not Responding
Cause: Locked menu or internal component failure.

Solution: Reset the unit or refer to manual for key-lock options.

4. Flicker or Partial Display

Cause: Internal circuit fault or external noise.

Solution: Verify voltage stability or replace the meter if units are damaged.

Troubleshooting Step-by-Step

Here is a summary checklist to guide you in troubleshooting:

✅ Step 1: Power Supply Check
Verify 230V AC or 24V DC is being supplied correctly.

Use a multimeter to check voltage on the terminal block.

✅ Step 2: Connection Check
Check terminal screws, CT wires, and control wiring.

Check for burn marks or heat signs.

✅ Step 3: Device Reset
A few models have a reset function through menu or power cycling.

See the Selec VAF36 manual for reverting to factory settings.

✅ Step 4: Firmware or Hardware Fault
If the meter has been subjected to a power surge or short circuit, internal damage can have resulted.

Reach out to technical support or an approved service center.