DIGITAL PHASE DETECTOR
PD3259-50
Three-Phase Voltage Measurement Functionality

Hioki’s non-contact voltage detection and measurement technology places efficiency and safety as priority considerations with the goal of protecting customers that need to conduct on-site electrical work as part of renovations and expansions of manufacturing plants and buildings. The PD3259-50 Digital Phase Detector lets you to measure three-phase voltage and detect phase sequence simultaneously by just clipping onto covered cables, ensuring absolutely no contact with metal parts for maximum safety. CAT IV 600 V Key Features • Wireless support. Transfers measurements to your smartphone or tablet. (Optional Wireless Adapter Z3210 is necessary) • World’s first non-metallic contact voltage detection and testing • Simply clip onto wire insulation • Phase detection check and line-to-line voltage inspection at the same time • Easy and intuitive phase detection check with backlight and buzzer • Ideal for work certification photos, offering simultaneous display of phase sequence and 3-phase voltage Note: Only the voltage value is displayed when measuring a single-phase/3-wire circuit. |
Model No. : PD3259-50![]() When Z3210 is installed |
Wireless support Wireless communication capability for even greater convenience than PD3259 (legacy model)
Compatible with Wireless Adapter Z3210 (optional). |
Easy! Just connect the optional Z3210 Wireless Adapter to your Hioki compatible instrument, to make it Bluetooth® ready.
Wirelessly connect Hioki-compliant instruments with a simple connection. |
New function in GENNECT Cross
You can check the unbalance rate and vector diagram from the measurement data of PD3259-50. |
Transport to the Excel® file
Open an Excel® file and select a cell. |
Just clip the wire The measurement can be taken simply by cliping the wire. |
Safe measurement without contact with metal
There is no metal exposure on the sensor. |
Display on a large screen
Phase detection check and line-to-line voltage inspection at the same time. |
Light and sound notification
A red light and a continuous buzzer sounds to indicate the Negative phase. |
Fix the instrument to the wall.
The MAGNETIC STRAP Z5020 (option) can be used by fixing the main body of the measuring instrument to the wall. |
Color clips are included to help identify the code
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How to Use the Hioki Digital Phase Detector PD3259-50
In the past, four steps have been necessary in order to check a 3-phase power circuit: one set of measurements to check the phases with a phase detector, and three line-voltage measurements (one for each phase) made with a tester. The Digital Phase Detector PD3259-50 replaces this process with a single, no-metal-contact measurement step that can be made simply by affixing three clamp sensors. The instrument quickly displays the phase detection results and three phase voltage values. |
Related Products List
WIRELESS ADAPTER Z3210 |
Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)
Note: Multi-core cables, thick cables, and dirty cables may not be measured accurately.Detection functions |
Positive phase, negative phase (Three-phase 3-wire, Three-phase 4-wire), open phase, prediction of ground phase (Three-phase 3-wire) |
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Measurement parameters |
Three-phase AC voltage (line-to-line voltage and voltage to ground), Frequency • Voltage measurement accuracy: ±2.0% rdg. ±8 dgt., • Frequency measurement accuracy: ±0.5% rdg. ±1 dgt., • Response time: 3 s or less, Display update rate: 500 ms |
Measurement targets |
Covered cables, Metal portions *Use on shielded cables not supported Three-phase 90.0 to 520.0 V AC (45 to 66 Hz) |
Diameter of measurable conductors | Finished outer diameter: 6 to 30 mm (0.24 to 1.18 in) |
Maximum rated voltage to earth | 600 V AC (CAT IV) |
Environmental protection | Main unit (excluding voltage sensors): IP54 (EN60529) dustproof and waterproof |
Other functions | Hold function, Backlight, Buzzer, Auto power-off, Low battery warning, Drop proof (on concrete, 1 m/ 1 time) |
Power supply | AA alkaline batteries (LR6) ×4, Maximum rated power: 3 VA, Continuous operating time: 5 hours (Backlight off, standby state, Without Z3210) |
Dimensions and mass | 84 mm (3.31 in)W × 146 mm (5.75 in)H × 46 mm (1.81 in)D, 590 g (20.8 oz, including batteries), cord length: 0.5 m (1.64 ft) |
Accessories | AA alkaline batteries (LR6) ×4, Instruction manual ×1, Carrying case C0203 ×1, Color clip (White ×2, red ×2, blue ×2, yellow ×2), Spiral tubes (black ×1) |
Catalog: PHASE DETECTOR,VOLTAGE DETECTOR Series | Download PDF [3MB] | English |
Options
WIRELESS ADAPTER Z3210 • Increase your work efficiency, by eliminating human errors from manual reporting • Transfer readings on instruments to easy-to-read graphical reports to prove integrity • Compliance with wireless regulations in more than 50 countries and regions |
MAGNETIC STRAP Z5020 Extra strength |