The HZHX-W is a fully intelligent wireless high and low voltage phase tester — also referred to as a wireless high voltage voice phase tester, wireless high voltage phase tester, or phase instrument. The system consists of a wireless receiver, XY detectors, and a telescopic insulating rod.
The receiver features a 3.5-inch true color LCD screen that simultaneously displays phase testing results, phase angle, frequency, and vector diagram indicators, along with voice prompts such as "X signal normal," "Y signal normal," "in phase," and "out of phase" for clear and intuitive operation. The phase testing distance can reach up to 160 meters in open ground.
The device is capable of fully intelligent phase testing for voltage lines from 10V to 550kV. For bare conductors of 35kV and below, direct contact phase testing can be performed. For bare conductors above 35kV, non-contact phase testing is employed by gradually approaching the detector to the conductor. Upon sensing the electric field signal, phase testing is completed without direct contact with high voltage conductors, enhancing safety.
The phase tester also functions as a high voltage tester, high voltage phase meter, and high voltage phase sequence meter, suitable for voltage testing, phase sequence testing, and transformer group determination.
| Functions | High and low voltage wireless voice phase testing, frequency, phase angle, phase sequence, and voltage testing |
| Power Supply | DC 3.7V rechargeable lithium battery with USB charging port; continuous operation for approximately 10 hours |
| Transmission Methods | 315MHz, 433MHz wireless transmission |
| Phase Testing Distance | Approximately 160 meters |
| Display Mode | 3.5-inch true color LCD display |
| Measurement Range | Phase testing voltage levels: AC 10V~550kV Phase angle: 0.0°~360.0° Frequency: 40Hz~75Hz |
| Resolution | 0.1°; 0.1Hz |
| Accuracy | Phase angle: ≤±10° (23°C±5°C, 80%RH or below) Frequency: ≤±2Hz (23°C±5°C, 80%RH or below) |
| Phase Identification | In phase: -30°~30°; Out of phase: 90°~150° and 210°~270° |
| Voice Prompts | In phase, out of phase, X signal normal, Y signal normal, etc. |
| Insulating Rod Dimension | Extended length approximately 5 meters; retracted length approximately 1 meter (5 sections) |
| Data Storage | Up to 9,999 sets of data |
| Phase Testing Method | Contact phase testing: direct contact phase testing for bare conductors below 35kV or insulated conductors below 110kV (with insulating rod) Non-contact phase testing: non-contact phase testing for bare conductors above 35kV or lines above 110kV (with insulating rod) |
| Voltage Testing Indicator | Detector emits a "beep-beep-beep" sound |
| Auto Range | Automatic range adjustment |
| Sampling Rate | 2 times per second |
| Instrument Dimensions | Detector: L 145mm × W 60mm × T 48mm Receiver: L 250mm × W 100mm × T 40mm |
| Backlight Control | Adjust backlight brightness with up/down arrow keys |
| Induction Intensity Control | Detector automatically adjusts amplification based on electric field strength for convenient phase testing in dense wiring areas |
| Data Hold | Press the HOLD button to retain data in test mode; press HOLD again to release |
| Exit Function | Press ESC key to exit the current function interface and return to the previous menu |
| Data Review | Press ENTER to enter data review mode; use arrow keys to browse stored data |
| No Signal Indicator | Dynamic display of "--" when the receiver does not receive a transmission signal |
| Auto Power Off | Automatically shuts down after about 15 minutes to reduce battery consumption |
| Battery Voltage | When voltage is below 3.2V: Detector: power indicator blinks slowly, prompting for charging Receiver: low battery symbol displays, prompting for charging |
| Rated Current | Detector: 35mA max; Receiver: 300mA max |
| Instrument Weight | Detector: 205g (including battery) Receiver: 395g (including battery) Insulating Rod: 1.45kg Total Weight: 9.8kg (including instrument case) |
| Operating Temperature and Humidity | -10°C~40°C; below 80%RH |
| Storage Temperature and Humidity | -10°C~60°C; below 70%RH |
| Interface | No strong electromagnetic fields; no interface at 433MHz or 315MHz |
| Insulation Strength | Insulating Rod: AC 110kV/rms (fully extended 5-section rod, between both ends) Detector: 2000V/rms (between housing ends) Receiver: 2000V/rms (between housing ends) |
| Structure | Drip-proof type II, IP63 |
| Safety Standard | Complies with GB13398-92, GB311.1-311.6-8, 3DL408-91, and the newly issued national electric power industry standard "General Technical Conditions for Portable Phase Testers for Live Working from 1kV to 35kV DL/T971-2005" Conforms to IEC61481-A2:2004 and IEC 61243-1 ed.2:2003 standards |
We are an integrated trade and manufacturing company with our own factory.
Yes, we accept OEM/ODM/OBM and can customize the built-in software of the product according to the customer's special requirements.
In normal circumstances, products in stock can be received within 5 to 7 days via the fastest international express. Other situations may vary depending on the quantity of products ordered, whether there are special customization requirements, and the delivery time chosen.
We have professional internal and external packaging to ensure the safety and stability of the products during transportation. For fragile or other special parts, we will include an extra set to ensure that the customer can use the product immediately upon receipt.
For quality issues that are not caused by human error, we provide a one-year warranty from the time the product is delivered, and lifetime technical support. Other after-sales issues will be addressed by our professional technical staff within 24 hours. The product comes with a user manual and an operation video.
