Description

Overview

The Marmonix MVD-335 is a wireless high-voltage phase detector for verifying phase relationships, phase sequence and frequency on power systems up to 220 kV. Two wireless units (host and detector) communicate at up to 30 m, allowing safe phasing without trailing cables. A 3.5-inch colour display shows a phasor diagram and digital readings, and both contact and non-contact detection modes are supported. With 9999-set data storage and sound/light indication, it is an essential tool for substation commissioning, switching and utility maintenance.

Key Features

Wireless phasing at up to 30 m between units
Phase detection voltage from 200 V up to 220 kV
Contact and non-contact detection modes
3.5-inch colour display with phasor diagram
Phase, phase-sequence and frequency measurement
Frequency 45-65 Hz with +/-2 Hz accuracy
9999-set data storage (retained on battery change)
Sound and light indication with adjustable backlight

Applications

Substation commissioning and phasing
High-voltage switching operations
Line and busbar phase verification
Utility and grid maintenance
Power distribution testing

What’s in the Box

Marmonix MVD-335 host and detector units
Insulation rod and adapters
Batteries
Carrying case and user manual

Why buy from MME in UAE

MOHAMMAD MAHDI Electronics Trading LLC (MME) is a trusted supplier of Marmonix test and measurement equipment in the UAE. We offer genuine products, competitive pricing, fast local delivery across Dubai, Abu Dhabi and the wider UAE, and knowledgeable after-sales support. Download the datasheet

Specifications

Functions	High-voltage phase detection, frequency, phase, phase sequence, and electrical inspection are also needed.
Power Supply	Host: DC9V,6pcs 5 alkaline batteries, Detector: Zinc – manganese dry batteries 6F22、9V
Phase Detect Modes	1. Contact Phase Detect: can contact wire which is below 35KV(bare wire)or 220KV(With insulation Cover)

	2. Non-Contact Phase Detect: conduct non-contact testing when bare wire exceeds 35KV, detect Probe close to the wire gradually.
Wireless Distance	30M
Phase characterization	1.In Phase:－25°～25°

	2.Out of Phase: 95°～145° and 215°～265
Phase detect Voltage	200V～220kV
Phase Range	0.0°～360.0°；Accuracy：≤±12°；Definition：0.1°
Frequency Range	45.0Hz～65.0Hz；Accuracy：≤±2Hz；Definition：0.1Hz
Transmission frequency	433MHz、315MHz
LCD	3.5inch Color Display；Display Field：71mm×53mm
Phase indication	Phasor diagram and digital display
Power indication	Green indication light
Working indication	Sound and Light Indicator,red double flash indicator and “beep – beep – beep” beep sound
Display Speed	2Times/Second
Data Storage	9999Sets (Replace the battery without losing data)
LCD backlight	Adjustable brightness, to adapt to different environments
Automatic shut-down	Turn on the instrument for about 5 minutes
Battery Voltage	When the battery voltage dropped to 7.2V ± 0.1V, “the battery voltage is low” symbol display, to remind the replacement of the battery, the measured data is also accurate.
Rated current	Detector：30mA max；Host：150mA max
Weight	Host:950g(includes Batteries),Packing and Insulation Rod: 3KG
Size	Host:195mm×100mm×45mm；Detector:290mm×250mm×80mm
Insulation Rod Length	Max Diameter:Φ38mm；Length：Pull Back 1050mm；Extech 4850mm
Insulation Test	Insulated rods at both ends after drawing: AC 220 kV / rms

	Host, detector: AC3700V / rms (exposed metal and plastic housing)
Outside Interference	No special strong electromagnetic field; no 433MHz, 315MHz frequency interference
Working Temperature and Humidity	-10℃～40℃; below 80%rh
Storage Temperature and Humidity	-20℃～60℃; below 70%rh
Degree of protection	IP63
Safety Protocol	GB13398－92, GB311.1－311.6－8, 3DL408－91,《General technical requirements for portable nuclear power apparatus for use in 1kV ~ 35kV portable power plants DL/T971-2005》, IEC61481－A2; 2004; IEC 61243－1 ed.2:2003
Accessories	Host:1set, Detector: 2 pieces, Probe: 2pcs, Probe Hook: 2pcs, insulation rod: 2pcs, 1 piece of software CD, 1 piece of USB data cable, 6 pieces of LR6 battery, 2 pieces of 6F22 battery, 1 inspection line, Toolkit 1 piece

MARMONIX MVD-335 Wireless High Voltage Phase Detector