New Portable Power Logger + PQ Detector!

Introducing DranXperT – a new portable, low cost, power logger and PQ detector from Dranetz.

DranXperT is two products in one:

  1. Accurate, 3 phase, bi-directional power/energy logger
  2. PQ detector with 1/2 cycle resolution to identify and record common PQ issues such as sags/dips, swells, and interruptions, as well as changes in current

DranXperT measures all of the power parameters that you expect, such as W, VA, VAR, PF, Demand and Energy. Being a bidirectional power meter, direction of power flow is also measured for use in DER/alternative energy applications. Being a Dranetz, DranXperT’s measurements are second to none and also include PQ monitoring capabilities. PQ problems, such as sags/dips, swells, interruptions can be detected with IEC 61000-4-30 1/2 cycle resolution and harmonics are computed using the techniques of IEEE 519-2014/IEC 61000-4-7.

DranXperT includes free, unlicensed Dran-View XP software, a web browser user interface, and strong remote communications for use in virtually any portable, or temporary power monitoring application. Connect your computer directly to DranXperT using the supplied Ethernet cable, or to any local/private/corporate network, and even the Internet for remote communications. All that you need is a web browser on any PC, tablet or Smartphone to configure the meter for recording and for real time data review. Data is easily transferred for analysis to your PC via a USB drive or by downloading using your web browser.

No other product at this price point can achieve this high level of capability – a complete bi-directional energy/power meter AND the PQ monitoring capabilities that you expect from a Dranetz.


  • Power/energy logger & PQ disturbance/event detector
  • 3 voltage channels – Direct measurements up to 600Vrms, CATIII
  • 4 current channels – Industry standard 0.333Vrms current inputs – Use our CT’s or bring your own (UL listed)
  • Measures: V, I, W (P), VA (S), VAR (Q), PF, Demand, Energy & much more
  • PQ disturbance detector – Detect and records trends of RMS sags/dips, swells, current changes – IEC 61000-4-30 1/2 cycle methods
  • Harmonic measurements & recording – Vthd, Ithd. Measurements using the methods of IEEE 519-2014/IEC 61000-4-7
  • Web browser interface for real time meters, setup and data transfer
  • Free, unlicensed Dran-View XP software for analysis & reporting
  • 7 hrs. battery runtime – Best in class
  • Automatic wiring verification – LED’s indicate wiring errors
  • Ethernet, USB communications
  • Modbus, BACnet
  • UL and CE Compliant



  • Sampling Frequency: 32ksps (recorded and real-time meters), 128 samples per cycle (periodic waveform snapshots)
  • Journal Rate: User selectable (1 sec min interval)
  • Snapshot Rate: User selectable (60 sec min interval)
  • Demand Interval Storage Rate: User selectable (1 min to 1440 min)
  • Sag/dip, swell trigger resolution: 1 cycle (uses IEC 61000-4-30 Class S methods)
  • Panel indicators: RGB LEDs for monitoring on/off, energy flow, PQ event indication, battery charging/status, wiring status
  • Storage Capacity: 8GB

Measurement Inputs

VoltageRange: 90 to 600Vrms CATIII
Accuracy: 90 Vrms to 600Vrms = ±0.1%, <90 Vrms = 0.5%
Connections: 4 safety banana voltage inputs – 3 phase voltage and 1 neutral/reference
CurrentInput: 0.333 Vrms full scale
Accuracy: ±0.1% + probe
Connections: BNC
FrequencyRange: 50Hz = 45Hz to 55Hz,
60Hz = 55Hz to 65Hz
Accuracy: 50/60Hz: ±0.001Hz

Energy Parameters (probe dependent)

  • (True/Active) Energy (P): 0.1%
  • Reactive Energy (Q): 0.1%
  • Apparent Energy (S): 0.1%
  • Fundamental Active Energy(P): 0.2%
  • Fundamental Reactive Energy(Q): 0.2%
  • Fundamental Apparent Energy (S): 0.2%
  • Demand: 0.2%

Power Parameters (probe dependent) 

  • (True/Active) Power (P): 0.2%
  • Reactive Power (Q): 0.2%
  • Apparent Power (S: 0.2%
  • Fundamental Active Power(P): 0.2%
  • Fundamental Reactive Power (Q): 0.2%
  • Fundamental Apparent Power (S): 0.2%
  • Power Factor (PF): ±0.001%

Power Quality

  • Sag/dip, swell trigger threshold resolution: 1 cycle
  • Periodic waveform snapshots: 1 cycle
  • Vthd: ±5% for V ≥ 10% Vnom
  • Ithd: ±5% for I ≥ 10% Inom + probe erro

Types of Connections

  • Single phase
  • Split phase
  • 3 wire wye
  • 3 wire delta – 2 probes
  • 3 wire delta – 3 probes

Instrument Power

Line Power Supply
Range: 90 to 264 VAC, 47 to 63Hz
Consumption: 15W max
Line cords/plugs: Localized – country dependent. US, EU, UK, Australia available
Internal BatteryRechargeable lithium Ion battery pack (UL recognized)
Run time: 7 hours (typical)
Charge time: 15 hours (typical)

Communication Interfaces

  • Ethernet: 10
  • USB: 2.0
  • Protocols: Modbus, BACnet

Enclosure & Mechanical

MechanicalWeight: 1.4 lb. (0.64Kg)
Dimensions: 3.5” Width x 2.2” Height x 7.4” Length (6.4 cm x 8.9 cm x 18.8cm)
Material: Aluminum
Ingress protection rating: IP50 (vertical position)
EnvironmentalStorage Temperature: 5 to 131 °F (-15 to +55 °C)
Operating Temperature: 32 to 113 °F (0 to +45 °C)
Humidity: 5% to 95% non-condensing
Altitude: 6560 ft (2000m) maximum (per EN61010-1


ULEN 61010-1
Mains supply: Installation Category II, Pollution Degree 2
Measurement Inputs: Installation Category III, Pollution Degree 
CEEN 61326
EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6

Optional Hinged CT’s – 600V CAT III, Freq range: 50 – 1Khz

CT-H-5A: 5A, 0.5%, hinged split core, 0.4″ window
CT-H-20A: 20A, 0.5%, hinged split core, 0.4″ window
CT-H-50A: 50A, 0.5%, hinged split core, 0.4″ window
CT-H-100A: 100A, 0.5%, hinged split core, 1.0″ window
CT-H-600A: 600A, 0.5%, hinged split core, 1.38″ window


  • DranXpert CT’s are not compatible with other Dranetz products
  • DranXpert is not compatible with CT’s used with other Dranetz products
  • Only choose 333mV output CT’s for use with DranXperT


Any local or remote power monitoring Energy audits
Demand side management
Basic PQ surveys
NEC 220.87 load monitoring
Check metering
Sub metering
Tenant metering
Alternative energy production & DER integration
Energy cost allocation
Load profiling
Power factor studies
Residential applications including energy usage & PQ detection
Industries include, but are not limitedUtility
Electrical contractors
Property management & real estate
Hospital & healthcare
Rental companies

If you require any further information, feel free to leave a question in the comments section or contact info@powerquality.co.th

Published by PQBlog

Electrical Engineer

One thought on “DranXperT

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